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Ctrl Alt is designing and operating the on-chain infrastructure powering digital capital markets globally. We bring together a unique blend of expertise in financial markets and cutting edge in house technology to deliver tailored, compliant solutions in the alternative assets space. Since launching in 2022, we've tokenized over $1bn in assets across real estate, private credit, funds, litigation finance and more. We're building a high performance, people first culture where ambitious individuals can thrive. We move fast, think big and hold ourselves to a high bar, while keeping things collaborative, open and genuinely fun. At Ctrl Alt ideas win on merit, teams work closely with leadership, and everyone has a voice in shaping what we build next. We believe that hard work should come with real reward. You won't just join a company - you'll help build one. Last year alone, we grew from 17 to 50 people, and this year we're going faster and further. That means real responsibility, meaningful impact, and the opportunity to grow alongside a company that's redefining the future of finance through the tokenization of alternative assets. If you're excited by scale up energy, ownership, and the chance to help shape both a business and a culture, Ctrl Alt is where you can do the most rewarding work of your career. AS SEEN IN What's Involved Note: We do not offer sponsorship for this role This is a hybrid role based around our Belfast office Design, build and maintain high performing, flexible and scalable solutions Build upon our existing app to create products and features that help our users understand their investments, manage their portfolios and participate in voting rights of their assets Build APIs for our partners to access and place orders our platform Take a loosely defined problem through to a valid, technically sound, thoroughly documented, tested, and implemented software solution Collaborate with team members and other engineers across the company Advocate best coding practices to raise the bar for you, your team and the company Mentor engineers on your team supporting them in their growth Requirements Must Haves 3+ years experience as a Developer Comfortable writing backend code to be performant and efficient Experience building RESTful application interfaces and designing APIs Experience working as a part of a multi person development team that utilizes automated testing, CI/CD pipelines and peer reviews in an Agile Environment Nice to Haves Strong engineering principles Excellent communication skills - written and verbal Experience in React and React Native Join a scaling fintech building the next generation of investment banking. You'll work at the intersection of capital markets and cutting edge blockchain technology, helping drive and shape the future of financial infrastructure. What it's like working at Ctrl Alt Build and own the future of finance - Take real responsibility in shaping digital capital markets, with the autonomy to lead decisions and drive impact. Solve meaningful problems with exceptional people - Tackle complex challenges at the intersection of finance and technology alongside leaders with experience from Morgan Stanley, Credit Suisse, UBS, and Revolut. Grow fast in a high performance environment - Stretch beyond your comfort zone through close collaboration, rapid feedback, and continuous learning. Innovate and make your mark - Bring bold ideas to life and influence our platform, products, and how we operate from day one. Grow at speed - Stretch beyond your comfort zone with increased responsibility, fast feedback, and an environment designed for continuous improvement. How we support you Competitive salaries with regular reviews that reflect your impact, performance, and progression. Generous stock options so you directly share in the company's growth and long term success. Premium private healthcare to support your physical wellbeing. 26 days of annual leave, plus your birthday off, and regional bank holidays - with flexible leave so you can take time off when you need it. An enhanced parental leave policy to support you and your family at every stage. A MacBook, screens, and any additional equipment you need to perform at a high level. Access to salary sacrifice schemes covering childcare, groceries, EV cars, tech, pensions, bikes, and subscriptions. Modern, centrally located offices in London, Belfast, Dundalk, and Dubai - designed for collaboration and focus. An annual learning and personal development budget for training, exams, certifications, and qualifications - whatever helps you move forward. How to Apply Simply hit apply below, where you will be redirected to a form to fill out all relevant details. You will be asked to upload a CV and Cover Letter. Interview Process:

Location London Employment Type Full time Department Engineering Our Mission Reduce inequity by helping immigrants move money home, and become the leading cross-border fintech for emerging markets. The Team Founded by Harvard grads / 3rd time founders also founded Segovia (successful exit) and GiveDirectly (>300M revenue, fastest growing NGO). Top performers from top and varied organizations (e.g., Bain, Bolt, Google, McKinsey, SafeBoda, Uber, Zipline) we like moving fast, and we hire people that do as well. Driven by mission, guided by values (see below) - in deed, not just word. Team as global as the mission, >30 languages from 25 countries (i.e., if you're interested in learning to make Chicken Moambe, we're the place). About Us Taptap Send is backed by top VCs (Spark, Canaan, Reid Hoffman, Breyer Capital, etc.), rapidly growing and a great place for those looking for both impact and a fast paced tech startup environment. Read more about the journey in Reid Hoffmann's words or TechCrunch article. Launched in 2019, Taptap is tapping into a transformative shift in global finance: from banks to phones. While this has affected wealthier countries as well, it has been nothing short of a revolution for the emerging markets where the overwhelming majority of population had been unable to access digital finance previously. Taptap Send allows immigrants to send money home instantly and with no fee , saving money in the process. With a formal market size of >700B alone, we've got a lot more saving to do for our users. Our mission is to reduce inequity by helping immigrants move money home, and become the leading cross border fintech for emerging markets. And that's just the beginning We charge fees for transfers on fixed exchange rate corridors (e.g., XOF, XAF). Our Investors Spark Capital, Canaan, Reid Hoffman, Breyer Capital (Jim Breyer), Unbound (Shravin Mittal), Wamda (Fadi Ghandour), Firstminute Capital, Slow Ventures (Sam Lessin), Helios Partners (Souleymane Ba), Crossbeam Ventures (Ali Hamed), Nikesh Arora, Samih Toukan, and many other context specific angels The Role We are looking for a Senior Software Engineer to join our growing engineering team to define, build and iterate on features for our internal tooling. You will work closely with Developers, Product, Operations, Customer Support, Growth and other functions to design and build a reliable, intuitive, and simple experience for our internal users in finance, treasury, and operations. As an early member of the team, you will also have a lot of impact on our team culture, processes and norms. Taptap Send is a cross platform mobile app developed with React Native and TypeScript, which talks to a backend service written in Kotlin and backed by a PostgreSQL database, all of which runs on AWS and is managed via Terraform. Our internal tools leverage these technologies in addition to Web React and Python. We're an encouraging environment that values both teamwork and autonomy, and have many exciting upcoming challenges, including: scaling up to handle increased volume and complexity, improving UI and UX to drive growth and retention, building internal tools, developing new small business solutions, and much more! Your Responsibilities Take ownership of development of internal tool solutions Build experiences across the stack using primarily Python, and on occasion Kotlin Write well tested, high quality code, with an eye towards generics and re use Work closely with design and product teams to regularly ship working features Participate in release planning and deployment of released build Mentor and advise team members Evaluate and deliver timeline estimates for projects Requirements 5+ years of professional experience building API applications using Python or Kotlin ideally. Experience working in AWS cloud, and leveraging services like ECS, Lambda, RDS, DynamoDB, SQS, SNS, EventBridge. Experience owning user facing features end to end, from conception to launch Experience developing software in a collaborative, multi functional, and fast paced environment Experience working on systems that have real world performance and reliability constraints Strong communication and ability to manage conflicting priorities, setting expectations with stakeholders and be a driving force Ideally Experience developing event driven system. Experience CI, CD processes and tools. High personal code/development standards (code review, unit testing, documentation, etc.) Desire to contribute to frontend development Taptap Values Impact first Team next Accept reality Propose solutions Win with grit Be proactively candid, with yourself and others Love the particular Own it Create positive energy Maybe, even have fun Taptap Send is an equal opportunity employer dedicated to building an inclusive and diverse workforce. All employment decisions are decided on the basis of qualifications, experience and business need. We strongly encourage applications who are members of underrepresented communities to apply. If you require reasonable adjustments to be made during the recruitment process, please do not hesitate to let us know. Any information you provide us in this respect will only be used to accommodate your requirements. Note: we recognize imposter syndrome is real - any candidate that does not perfectly fit every characteristic of this role is still strongly encouraged to apply.

Quality Assurance (QA) Engineer - OVO Drive Role OVO-View Team: OVO Drive Location: Hub Based - Hybrid for all Experience: Experienced Working pattern: Full-Time Reporting to: Android Lead - OVO Drive Sponsorship: Unfortunately we are unable to offer sponsorship for this role. This role in 3 words: Instrumental, Exciting, Detailed Top 3 qualities for this role: Curiosity, Confidence, Collaborative Where you'll work Depending on the needs of your business area, we expect hub based people to be in the office at least once a week, and to go to OVO Connection events in-person. You'll be assigned to the closest one of our three hub offices, Bristol, Glasgow, or London; unless your role requires field-based work. Each hub has accessible spaces to park your laptop, is designed to inspire people, help them connect and bring big ideas to life. Everyone belongs at OVO: At OVO, we are on a mission to solve one of humanity's biggest challenges, the climate crisis. And we know it takes all of us to change the world. That's why we need diverse people from all abilities, gender identities, ethnicities, ages, sexual orientations, life experiences and backgrounds to join us. Teamworking for the planet Everything we do here spins around Plan Zero. So, naturally, the team you'll be joining plays a gigantic role in making that happen. Here's how: We've made good progress on the UK's path to net zero. But we can do better. Research shows that 100% renewable energy tariffs aren't actually making the grid greener. We have to go further. We need to save energy, use power at smarter times of the day and look at other ways to help our customers reduce their carbon footprint. That's where OVO Drive comes in, it's our dedicated electric vehicle business. We already provide hardware installations, home & public charging but we want so much more, we want to build a single app experience that covers everything an EV driver could need. This role will play a huge part in that. We work like a start up - using our entrepreneurial, OVO Way spirit to drive us forward. And we'll be flexible about how we do it - trying new things, growing the ones that work and learning new, green skills as we go. This role in a nutshell Sitting in the OVO Drive business this role will support the development of the wide array of products targeted at EV Drivers from end to end. This includes defining and refining the team's QA strategy, building out our test automation suite and manually testing builds. Your key outcomes will be Setting quality standards with Software Engineers and building out the tools and processes that will ensure we meet them Understanding customer pain points and ways in which they can be mitigated Collaborate with product managers to plan and prioritise work Accountability for timely and reliable delivery of your work. Supporting the team to guarantee high system uptime and reliability Work alongside commercial and technical teams to ensure that we get the most value out of our work probably many more things we can't even predict at this point You'll be successful in this role if you Take full responsibility for the product's quality from discovery through to its final release. Helping coordinate the steps needed for App Store and Play Store deployments. Participate in Discovery to deeply understand requirements, allowing for the creation of comprehensive and effective test cases. Work with the team to provide realistic QA scope and effort estimates during sprint planning. Help the team maintain automation test suites using Appium. Contribute to the team's ways of working and testing standards to help the squad scale. Maintain consistent communication with developers and product owners and key stakeholders, and work alongside on call engineers to validate and resolve reported issues. Are familiar with logging and monitoring tools. Shine in a collaborative and supportive environment. Let's talk about what's in it for you We'll pay you between £46,220 - £55,000, depending on your specific skills and experience. We keep our pay ranges broad on purpose to give us, and you, flexibility to match your experience to our zero carbon mission. You'll be eligible for an on-target bonus of 15%. We have one OVO bonus plan that focuses on the collective performance of our people to deliver our Plan Zero goal. We also offer plenty of green benefits and progressive policies to help you feel like you belong at OVO and there's flex pay. We'll give you 9% Flex Pay on top of your salary - 4% of this is auto enrolled into your pension, and the remaining 5% is yours to do what you like with. You can use this to buy from our extensive range of flexible benefits, including our green benefits which we've put at the heart of our offering, add to your pension or even take it as cash. Here's a taster of what's on offer 34 days of holiday (including bank holidays). For your health: benefits like a healthcare cash plan or private medical insurance depending on your career level, critical illness cover, life assurance, health assessments, and more. For your wellbeing: gym membership, travel insurance, workplace ISA, will writing services, dental insurance, and more. For your lifestyle: extra holiday buying, discount dining, home & tech loans, and supporting your favourite charities with give-as-you-earn donations. For your home: Get up to £400 towards any OVO Energy plan, plus great discounts on solar, smart thermostats and EV chargers. For your commute: Nab a great deal on ultra-low emission car leasing, plus our cycle to work scheme and public transport season ticket loans. For your Belonging To find better ways to support our people, we need to listen to each other's experiences and find ways to build a truly inclusive and diverse workplace. As part of this, we have 8 Belonging Networks at OVO. Led by our people, for our people - so when you join OVO, you can play a part - big or small - with any of the Networks. It's up to you. Oh, and one last thing We'd be thrilled if you tick off all our boxes, yet we also believe it's just as important we tick off all of yours. And if you think you have most of what we're looking for but not every single thing, go ahead and hit apply. We'd still love to hear from you! If you have any additional requirements, there's a space to let us know on the application form; we want to make the process as easy and comfortable for you as possible.

Role Summary At Sophos, our mission is clear: defeat cyberattacks and protect organizations around the world. We are seeking a Software Engineer to join our Security features team and help build the systems that make that mission possible. In this role, you will work as part of a fast paced, high performing engineering team that designs, architects, and builds systems from the ground up. You'll own the delivery of project work end to end - from understanding requirements, through design, implementation, testing, and deployment - and you'll be responsible for the full lifecycle of the code you ship, including production support and continuous improvement. This position is for an engineer who has a few years of professional experience under their belt and is ready to take ownership of meaningful work with moderate guidance. You'll partner with senior engineers on more complex problems, mentor more junior teammates, serve as an on call first responder for the services your team owns, and help raise the bar on quality and developer experience across the team. We value curiosity, flexibility, and creative problem solving, and we're committed to helping engineers continue to grow into senior technical leaders. What You Will Do Design, develop, ship, and maintain features end to end in TypeScript across React frontends and backend services, with guidance from senior engineers on more complex initiatives. Own delivery of project level work with moderate guidance - from breakdown and design through implementation, testing, deployment, and post release iteration. Design and implement APIs that query, aggregate, and serve data reliably at scale. Build and operate cloud infrastructure using Infrastructure as Code (e.g., Terraform), following established team patterns. Serve as an on call first responder for the services your team owns; triage, debug, and resolve production issues, then drive durable fixes and improvements. Create test plans for the features you build and contribute to automated testing (unit, integration, end to end) to enable safe, frequent releases. Conduct peer reviews of code, designs, test plans, and documentation, providing constructive feedback that raises team quality and adheres to engineering standards. Mentor IC1 engineers and interns; openly share expertise and knowledge within the team. Improve the developer experience by enhancing tooling, test coverage, and code structure (shift left). Use modern AI coding tools to accelerate delivery while continuing to build the deep engineering foundations needed to grow into a senior engineer. Collaborate with Product Managers, UI designers, Cyber Analysts, and other engineers to deliver meaningful security outcomes for our customers. What You Will Bring 3+ years of professional software engineering experience shipping production systems (or equivalent demonstrable experience). Proficiency in TypeScript or JavaScript and a modern frontend framework (React preferred). Experience designing and building backend services and REST or GraphQL APIs. Solid grounding in computer science fundamentals: data structures, algorithms, software design, and debugging. Experience with relational and/or NoSQL databases, including basic schema design and query work. Experience writing automated tests (unit, integration, end to end) and giving high signal code reviews. Ability to break down ambiguous problems, scope work, and reason through trade offs with limited guidance. Track record of consistently delivering on time and to agreed quality. Clear written and verbal communication skills; comfort mentoring more junior engineers and sharing knowledge openly. Curiosity, continuous learning, and a strong sense of ownership over the code and systems you build. BSc in Computer Science or a related numerate discipline, or equivalent practical experience. Desirable: Experience with cloud platforms (AWS preferred) and Infrastructure as Code (Terraform, CDK). Experience operating production services (on call rotations, observability, incident response). Familiarity with CI/CD pipelines and modern delivery practices. Exposure to event driven, distributed, or large scale data systems. Interest or experience in cybersecurity. Experience using AI assisted developer tools to improve productivity and learning velocity. Compensation In Canada, the base salary for this role ranges from $95,000 to $159,000. In addition to base salary, we offer additional compensation including bonus eligibility and a comprehensive benefits package. A candidate's specific pay within this range will depend on a variety of factors, including job related skills, training, location, experience, relevant education, certifications, and other business and organizational needs. Equal Opportunity We're proud of the diverse and inclusive environment we have at Sophos, and we're committed to ensuring equality of opportunity. We believe that diversity, combined with excellence, builds a better Sophos, so we encourage applicants who can contribute to the diversity of our team. All applicants will be treated in a fair and equal manner and in accordance with the law regardless of gender, sex, gender reassignment, marital status, race, religion or belief, color, age, military veteran status, disability, pregnancy, maternity or sexual orientation. We want to give you every opportunity to show us your best self, so if there are any adjustments we could make to the recruitment and selection process to support you, please let us know.

Creative Technologist at Expedia Group - UK - London, United Kingdom Expedia Group brands power global travel for everyone, everywhere. We design cutting edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success. Why Join Us? To shape the future of travel, people must come first. Guided by our Values and Leadership Agreements, we foster an open culture where everyone belongs, differences are celebrated and know that when one of us wins, we all win. We provide a full benefits package, including exciting travel perks, generous time off, parental leave, a flexible work model (with some pretty cool offices), and career development resources, all to fuel our employees' passion for travel and ensure a rewarding career journey. We're building a more open world. Join us. Creative Technologist At Expedia Creative Lab, you'll help shape how technology powers our brand across global marketing communications and programs, turning creative ideas into scalable reality. We're seeking a Creative Technologist who thrives at the intersection of creative, marketing, and technology. In this art meets science role, you'll architect the systems and tools that enable our creative and marketing teams to deliver consistent, high impact brand experiences at scale across digital video, copywriting, photography, growth, CRM, and beyond. You'll transform our workflows and operations through AI integration, automation, and innovative technology solutions that unlock new possibilities for Expedia brands. As a key collaborator, you'll partner with designers, strategists, developers, and brand leaders to conceptualize, prototype, and implement imaginative solutions. Your role will ensure that our creative projects not only achieve the highest quality but also deliver efficiency and scalability in today's fast evolving landscape. Responsibilities In this role, you will focus on: Research, adopt, and integrate AI driven tools (e.g., generative design, GPT models, Runway ML) to optimize workflows for video production, copywriting, photography, and campaign management. Develop a variety of creative assets, from interactive visuals to AR/VR applications and generative designs, using tools like Unity, Unreal Engine, and WebGL. Work closely with cross functional teams-including strategy, creative, production, and client services-to align technical solutions with broader brand goals. Build systems and frameworks that scale creative outputs efficiently, leveraging AI and automation for high volume tasks like localization, demand capture, and dynamic creative assets. Experience and Qualifications Advanced knowledge of AI tools (e.g., Runway ML, TensorFlow Magenta) and generative AI models (e.g., GPT 3, StyleGAN). Proficiency in web frameworks (React, Angular, Vue) and animation tools (e.g., WebGL, CSS based animation). Hands on experience with Unity, Unreal Engine, Cinema 4D, and After Effects. What Sets You Apart Curiosity: Continuous exploration of emerging technologies and processes to scale creative outputs for video, photography, and copywriting. Proven experience: 3 5+ years working in creative technology, media arts, marketing operations, or related technical roles. Builder mindset: Demonstrated history of creating tools and systems that solve complex creative challenges. AI fluency: Practical experience implementing AI workflows to enhance creative production. Basic DevOps knowledge (e.g., AWS, Google Cloud, Azure) and familiarity with Python or NodeJS. Communication: Exceptional ability to translate between technical and creative stakeholders. Portfolio: A compelling showcase of your work in creative technology, systems design, and AI implementation. Accommodation requests If you need assistance with any part of the application or recruiting process due to a disability, or other physical or mental health conditions, please reach out to our Recruiting Accommodations Team through the Accommodation Request. We are proud to be named as a Best Place to Work on Glassdoor in 2024 and be recognized for award winning culture by organizations like Forbes, TIME, Disability:IN, and others. Expedia is committed to creating an inclusive work environment with a diverse workforce. All qualified applicants will receive consideration for employment without regard to race, religion, gender, sexual orientation, national origin, disability or age.

Location: Bournemouth (Hybrid working available) Hours: Monday to Friday, 8:30am-5.00pm (flexi-time available) Salary: Competitive, based on experience Role Description: Core Responsibilities: Frontend Engineering Develop high-quality websites and interactive digital experiences using React and Next.js. Create reusable, scalable component libraries and design-system-driven UI structures. Implement modern rendering strategies including SSR, SSG, ISR, and API routes within Next.js. Ensure solutions are optimised for performance, accessibility, and SEO. Contribute to long-term experience layer architecture across multiple client ecosystems. Headless CMS & Composable Integration Integrate frontend applications with headless CMS platforms Translate functional specifications into structured content models and API-driven architectures. Collaborate with backend developers to define data structures, endpoints, and integration pathways. Configure content workflows and map CMS entities to frontend components. Support composable ecosystem patterns including search, experimentation, personalisation, and multi-platform orchestration where relevant. Required Skills & Experience: Strong commercial experience with React, Next.js, and TypeScript. Experience building experience layers for Headless CMS and composable digital platforms. Understanding of Next.js rendering strategies including SSR, SSG, ISR, hydration, and App Router patterns. Proficient in HTML5, CSS3, SCSS, and responsive UI development. Experience consuming REST and GraphQL APIs and integrating CMS-managed content structures. Strong focus on frontend performance, accessibility, SEO, and maintainability. Experience mentoring teams and helping shape Experience Engineering standards and delivery practices. Experience with Sitecore, Optimizely, Sitefinity, Umbraco, or similar API-first CMS platforms. Familiarity with modern testing approaches (e.g., Playwright, Cypress, component testing). Familiarity with composable architecture patterns beyond CMS, such as: Search and discovery services Personalisation and experimentation platforms Multi-system experience orchestration Experience with deployment environments Personal Attributes Strong communicator able to work closely with designers, architects, and client teams. Problem-solver who can identify technical solutions even in ambiguous scenarios. Collaborative and people-first mindset with a desire to share knowledge and support the wider team. Detail-oriented with a commitment to quality, consistency, and maintainability. Comfortable contributing not just code, but architectural thinking and delivery rhythm. Training & Development We invest heavily in professional development, including access to: Opportunities for certification in composable CMS platforms and React ecosystem tools Full training given to progress in this role Flexi-time and hybrid working options Health care scheme with gym membership discounts Pension Scheme Invitation to join our annual summer team day and Christmas Party, plus a range of social events throughout the year In-office fruit, drinks and snacks always available Bournemouth based office within THIS Workspace - 5 mins from the amazing beaches

About Wintermute Wintermute is a technology unicorn and one of the largest algorithmic trading companies, specialising in digital assets. We provide liquidity across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as supporting high profile blockchain projects and traditional financial institutions moving into crypto. Wintermute also has a Wintermute Ventures arm that invests in early stage DeFi projects. Wintermute was founded in 2017 and has successfully navigated industry cycles. Culturally, we combine the best of the two worlds: the technology standards of high frequency trading firms in traditional markets and the innovative and entrepreneurial culture of technology startups. At Wintermute, we believe in the innovative potential of blockchain, the fundamental innovations, we have a long term view on the digital asset market and are taking a leadership position in building an innovative and compliant market. You can read more here. Working at Wintermute We are looking for an Algorithmic Trader with strong coding skills (Python) and a curiosity about hft, liquidity provision and crypto trading. At Wintermute, you will be responsible for your own "desk" right from the start. You will have the opportunity to develop your own product (trading algorithms, trading strategies), while also getting advice and guidance from very experienced traders and developers, including the founders/management team. You will get a lot of independence and responsibility right away, and you'll learn at an unprecedented speed! No legacy systems, no corporate bureaucracy, no multiple levels of approvals. It is up to you to make an impact. What will you work on After a short training period, you'll be tasked with improving existing strategies, adding new trading products and improving the technology behind our trading systems. You'll need to analyze large amounts of trading and transaction data, generate insights, prioritize them and build solutions based on your findings. You can expect to be able to make an immediate impact on P&L and will be encouraged to explore new ideas and strategies. We will share more technical details in the interviews. Note: we are looking for people with strong quantitative and coding skills, but this is a business/trading (not a research) role first and foremost. Hard Skills Requirements 1 3 years of experience in a relevant role; however, we also welcome recent graduates who have completed internships at other HFT firms. Strong Python skills - you have 1 3 years of experience coding in Python, be that through work, study or personal project experience - we will test! Excellent quantitative and analytical skills - we will test! Trading knowledge isn't required but a strong willingness and curiosity to learn algorithmic, high frequency, quantitative and liquidity provision trading is crucial Strong interest and curiosity in blockchain, crypto and DeFi - you like keeping track of major news and developments the crypto world Other Requirements Have an owner mentality - you focus on ultimate result (short and long term P&L for the company), focus on strategically growing the business for the future vs "cashing in" fast Love problem solving, and love seeing your products work; you do whatever it takes to do what's needed (trading, coding, analysing data, collaborating) Determined, ambitious yet humble, willing to work hard and learn on the way Like meritocracy and being judged by what you deliver Have an entrepreneurial mindset versus working 9 to 5 mentality; prepared to work non standard working hours (since we are a high growth startup operating in 24/7 crypto world) Like working in the team environment (not fully remote), at least 75% working from our London office Here is why you should join our dynamic team: Opportunity to work at one of the world's leading algorithmic trading firms Engaging projects offering accelerated responsibilities and ownership compared to traditional finance environments. A vibrant working culture with team meals, festive celebrations, gaming events and company wide team building events. A Wintermute inspired office in central London, featuring an array of amenities such as table tennis and foosball, personalized desk configurations, a cozy team breakout area with games. Great company culture: informal, non hierarchical, ambitious, highly professional with a startup vibe, collaborative and entrepreneurial. A performance based compensation with a significant earning potential alongside standard perks like pension and private health insurance. Note: Although we are unable to accept fully remote candidates, we support significant flexibility in regards to working from home and working hours. We offer UK work permits and help with relocation

Openr is transforming how the hospitality industry manages and shares data. By centralising recipe, product, and pricing information, we help hospitality businesses seamlessly connect to platforms like Deliveroo and Just Eat, as well as EPOS and other customer touch points. We've recently closed a significant funding round and are backed by Azzurri Group, one of the UK's most successful hospitality investment platforms. With strong market traction, we're now looking for a Principal Engineer. About the Role We're looking for a senior backend focused engineer to join our engineering team. This is a hands on role where you'll be designing and building the systems that power our platform, while helping set the technical direction for how we grow. You'll be a go to person for architectural decisions and a mentor to engineers around you. We're after someone who's as comfortable pairing with a junior developer as they are making calls on system design. We invest heavily in each other's development here, and that applies at every level. What You'll Be Working With Our backend runs on AWS Lambda, TypeScript, Node.js, and PostgreSQL, with infrastructure managed in AWS. On the frontend we use TypeScript, React, and React Query. While this role is firmly backend focused, having a working understanding of the frontend helps when collaborating across the stack. You don't need to have used every one of these technologies before. What matters most is that you're an experienced engineer who picks things up quickly and enjoys getting stuck into new problems. What You'll Be Doing Technical Leadership You'll play a key role in shaping how we build things. That means owning architectural decisions, identifying the right trade offs between speed and sustainability, and ensuring our systems are reliable and performant. You'll contribute to our product roadmap from a technical perspective and help the team navigate complex dependencies and risks. Building This isn't a role where you stop writing code. You'll be hands on daily, delivering high quality backend solutions, improving our development workflows, and tackling the harder problems that come with a growing platform. Growing the Team You'll mentor engineers across the team, helping them develop their skills and confidence. You'll also be involved in recruitment, from screening candidates and reviewing code challenges to helping shape how we onboard new joiners. Communicating You'll regularly translate technical concepts for non technical stakeholders. Being able to explain the "why" behind decisions clearly and calmly is a big part of this role. What We're Looking For You're an experienced backend engineer who is confident designing and building systems in production. You have strong experience with TypeScript, Node.js, SQL, and relational databases. You've worked with cloud infrastructure, ideally AWS and serverless architectures. You've led the delivery of complex technical projects and know how to bring others along with you. You think carefully about system design, making pragmatic choices that balance quality with pace. You communicate well and enjoy working with people across different disciplines. Nice to have, but not essential (we're happy to support you in growing into these) Experience building or scaling SaaS products. Familiarity with event driven architectures. Background working with integration heavy platforms. An interest in security best practices. What We Offer Flexible hybrid working. Two days a week in our Central London office in Farringdon, the rest from wherever works for you. No out of hours support. We believe great work happens when people have balance. Real influence. You'll have direct input into architectural decisions and the technical direction of a growing SaaS platform. This isn't a role where decisions are made above you. A learning culture. Dedicated time and support for developing new skills, working with modern cloud native technologies. A collaborative team. We genuinely enjoy working together and supporting each other's growth. 25 days holiday per year plus Bank Holidays Life Assurance (4x salary) Income Protection (75% salary after 26 weeks) Access to WeCare Employee Assistance Programme Cycle to Work Scheme Annual eyecare voucher with Specsavers Wrkit Savings & Benefits platform We encourage applications from people of all backgrounds. If you're excited about this role but don't tick every box, we'd still love to hear from you. Curiosity and a desire to learn matter more to us than a perfect checklist.

About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to deliver innovative digital services that matter. Role Overview We are looking for a Senior iOS Developer to design, build, and maintain high-quality native iOS applications for a UK government client. You will work as part of a multidisciplinary agile team, delivering user-centred mobile experiences that meet Government Digital Service (GDS) standards and accessibility requirements. This is a hands-on technical role operating within structured and governed environments where security, performance, accessibility, and reliability are critical to service success. Key Responsibilities Design, develop, and maintain native iOS applications using Swift Collaborate with UX designers, product owners, and Back End developers to translate requirements into robust, accessible mobile experiences Write clean, testable, well-documented code following established coding standards and architectural patterns Implement and maintain CI/CD pipelines for automated builds, testing, and deployment Ensure applications meet WCAG 2.2 accessibility standards and GDS service standards Conduct code reviews and contribute to engineering best practices within the team Integrate with RESTful APIs and Back End services, working closely with API developers Troubleshoot and resolve performance issues, crashes, and production defects Support App Store submission processes and manage release cycles Contribute to technical documentation, architecture decisions, and sprint ceremonies Essential Skills & Experience Strong experience in native iOS development using Swift Solid understanding of iOS SDK, Xcode, and the Apple development ecosystem Experience with common iOS architectural patterns (eg MVVM, VIPER, Clean Architecture) Proficiency with iOS frameworks such as UIKit, SwiftUI, Combine, Core Data, or equivalent Experience writing unit tests, UI tests, and working with test-driven development practices Hands-on experience with CI/CD tools (eg Xcode Cloud, Fastlane, Jenkins, Azure DevOps) Understanding of RESTful API integration and networking best practices Familiarity with accessibility standards (WCAG 2.2) and building inclusive mobile interfaces Experience working in Agile or hybrid delivery models (Scrum, Kanban) Experience working in regulated, security-conscious, or high-assurance environments Desirable Experience delivering mobile applications within a UK public-sector or government context Familiarity with GDS service standards, the Technology Code of Practice, and the GOV.UK Design System Experience with mobile analytics, crash reporting, and APM tools (eg Firebase, Dynatrace, App Center) Understanding of secure coding practices and mobile security frameworks (eg OWASP Mobile) Experience with mobile device management (MDM) or enterprise distribution Familiarity with cross-platform considerations, even if primarily native-focused Scope & Accountability Responsible for hands-on design, development, and maintenance of iOS applications Owns the quality and technical integrity of assigned mobile deliverables and code Contributes technical analysis and recommendations to the wider delivery team Accountable for timely delivery of agreed development activities within sprint cycles Our Commitment to Diversity & Inclusion At Scrumconnect Consulting, we believe that diversity drives innovation. We are committed to creating an inclusive environment where everyone is respected, valued, and supported. We actively encourage applications from women, people with disabilities, individuals from under-represented communities, and those seeking flexible working arrangements. As a Disability Confident Level 1 employer, we provide reasonable adjustments throughout the recruitment process and employment to ensure equal opportunity for all.

About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to deliver innovative digital services that matter. Role Overview We are looking for a Senior iOS Developer to design, build, and maintain high-quality native iOS applications for a UK government client. You will work as part of a multidisciplinary agile team, delivering user-centred mobile experiences that meet Government Digital Service (GDS) standards and accessibility requirements. This is a hands-on technical role operating within structured and governed environments where security, performance, accessibility, and reliability are critical to service success. Key Responsibilities Design, develop, and maintain native iOS applications using Swift Collaborate with UX designers, product owners, and Back End developers to translate requirements into robust, accessible mobile experiences Write clean, testable, well-documented code following established coding standards and architectural patterns Implement and maintain CI/CD pipelines for automated builds, testing, and deployment Ensure applications meet WCAG 2.2 accessibility standards and GDS service standards Conduct code reviews and contribute to engineering best practices within the team Integrate with RESTful APIs and Back End services, working closely with API developers Troubleshoot and resolve performance issues, crashes, and production defects Support App Store submission processes and manage release cycles Contribute to technical documentation, architecture decisions, and sprint ceremonies Essential Skills & Experience Strong experience in native iOS development using Swift Solid understanding of iOS SDK, Xcode, and the Apple development ecosystem Experience with common iOS architectural patterns (eg MVVM, VIPER, Clean Architecture) Proficiency with iOS frameworks such as UIKit, SwiftUI, Combine, Core Data, or equivalent Experience writing unit tests, UI tests, and working with test-driven development practices Hands-on experience with CI/CD tools (eg Xcode Cloud, Fastlane, Jenkins, Azure DevOps) Understanding of RESTful API integration and networking best practices Familiarity with accessibility standards (WCAG 2.2) and building inclusive mobile interfaces Experience working in Agile or hybrid delivery models (Scrum, Kanban) Experience working in regulated, security-conscious, or high-assurance environments Desirable Experience delivering mobile applications within a UK public-sector or government context Familiarity with GDS service standards, the Technology Code of Practice, and the GOV.UK Design System Experience with mobile analytics, crash reporting, and APM tools (eg Firebase, Dynatrace, App Center) Understanding of secure coding practices and mobile security frameworks (eg OWASP Mobile) Experience with mobile device management (MDM) or enterprise distribution Familiarity with cross-platform considerations, even if primarily native-focused Scope & Accountability Responsible for hands-on design, development, and maintenance of iOS applications Owns the quality and technical integrity of assigned mobile deliverables and code Contributes technical analysis and recommendations to the wider delivery team Accountable for timely delivery of agreed development activities within sprint cycles Our Commitment to Diversity & Inclusion At Scrumconnect Consulting, we believe that diversity drives innovation. We are committed to creating an inclusive environment where everyone is respected, valued, and supported. We actively encourage applications from women, people with disabilities, individuals from under-represented communities, and those seeking flexible working arrangements. As a Disability Confident Level 1 employer, we provide reasonable adjustments throughout the recruitment process and employment to ensure equal opportunity for all.

Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right. Since then, we've built the world's largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar-tools used by millions globally to protect their freedom, fight censorship, and keep their data safe. In some situations, Proton has literally helped save lives! We are profitable, independent (no VC control), and selectively hire from the top 1% of applicants. Our 500+ team members across 50+ countries come from leading organizations and elite academic backgrounds. We move fast, keep hierarchy light, and prioritize impact over optics. If you want to do meaningful work with exceptionally high-caliber people, this is it. Join us and do work you can truly be proud of. Check ouropen-sourceprojectshere ! About Photos Join the team building Proton Drive Photos, a private photo storage designed so your memories belong only to you. We're creating the encrypted alternative to Big Tech photo platforms, combining consumer-grade UX with uncompromising privacy. If you want to build products used by millions while helping fix the internet, we'd love to meet you. The Role As an engineer on our Apple team you'll build and ship features across Proton's apps on iPhone, iPad and macOS, working closely with product and engineers across the company to define what "great" looks like on Apple platforms. Our codebase is primarily Swift with some Go, and we're moving to a platform-independent Rust logical core that communicates with Swift via a generic interface, so Rust experience is a strong plus. Quality is central to the role: you'll contribute to and maintain our testing stack, including unit tests for business logic, stubbed API tests for pseudo-integration, snapshot tests for UI and XCUITest for end-to-end user flows. You'll join a team that pairs deep technical expertise with an obsession for simple, usable interfaces, shipping privacy-preserving products used by millions. What we are looking for: You have experience in iOS in particular with Swift You have a passion for mentoring other engineers and helping them grow You are passionate about user interaction, usability, and providing an excellent user experience Demonstrated experience driving change within an organisation and leading complex technical projects Extensive experience building maintainable and testable code bases, including API design and unit testing techniques Extensive experience with concurrent programming and mobile memory management A strong grasp of scalable software architecture and software engineering best practices An intuition for optimal user experience and design Rust experience not required, but a major plus Deep understanding ofAPNs, UNUserNotificationCenter and iOS background execution(silent pushes, background app refresh, background URLSession), and how these impact app reliability Experience buildingoffline-first data flowswith local persistence (Core Data, SQLite, Realm or similar) and conflict free sync What we offer Work that Matters: millions of people trust Proton with their privacy. We answer only to our users - not advertisers, not investors with conflicting agendas, not governments. The work you do here is real, and the impact is measurable. (read more about our impact here ) A great Team: Our team is diverse, collaborative, and tight knit with people coming from all walks of life, including many of the world's top academic institutions and organizations, such as MIT, Harvard, Stanford, Caltech, Cambridge, and ETH. Technology: you'll get the right hardware and the right software you need to do your best work. Learning & Development: we invest in your growth because sharp people make us better. Proton is one of the fastest ways to accelerate your career because you'll be thrown into real challenges, with real ownership, from day one. Employee Benefits: your wellbeing isn't an afterthought. We offer strong health coverage, solid retirement options, generous leave, and wellness support so you can bring your best self to work every day Stock Options: at Proton, we all have the opportunity to be owners of the company. From day one, you have a real stake in what we're building. When Proton wins, you win. In Person Collaboration: Amazing things happen when passionate, smart, and purposeful people get together in the same room. With offices across Geneva, Zürich, Barcelona, London and more, you'll spend most of your time collaborating face to face with people who genuinely care about what they're building Food: Lunch and snacks are on us every day in our offices so you can focus on the work and not on what's for lunch. Transport: getting to the office shouldn't cost you. We cover public transport, bike allowances, or parking, whichever works for you. Flexible Working: you own your schedule. Set hours that work for you and your team - because outcomes matter more than when the clock says you started. Our commitment to diversity and inclusion At Proton, we believe diversity drives innovation and strengthens our mission to provide privacy as a default for all. We are committed to fostering an inclusive environment where all individuals, regardless of race, ethnicity, gender, age, sexual orientation, physical ability or socio economic background feel valued and empowered. We strive to create equal opportunities, promote open dialogue and support continuous learning to ensure every voice is heard and respected. If you need any extra support or reasonable adjustments during the hiring process, please let your talent partner know. Candidate privacy notice When you apply for a position, refer a candidate or are considered for a role at Proton Technologies AG (Proton, we, us or our), your information is stored in Greenhouse, in accordance with its Service Privacy Policy . This information is used to evaluate your suitability for the posted position. We also retain this information for consideration for future roles that you may apply for or that we believe may align with your background and skills. If we no longer have a legitimate business need to process your information, we will either delete or anonymise it. Should you have any inquiries about how we use or manage your information or if you wish to access, correct or delete your data, please contact our privacy team at . Proton does not accept unsolicited CVs from any sources other than directly from candidates. We will not pay a fee for any placement resulting from an unsolicited offer, even if the candidate is subsequently hired by Proton. Interested in building your career at Proton? Get future opportunities sent straight to your email.