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About Us: Fifth Dimension is bringing vibe working to document-heavy industries . Today we work with real estate businesses in the US, EU and APAC, automating complex tasks, extracting valuable insights from documents, and empowering professionals to focus on high-impact work. Our AI workspace transforms how large investment managers and developers handle leases, development documents, and investment decisions. We're a London and New York based startup with an ample runway, backed by Tier 1 European and American investors. Our founders, Johnny Morris and Dr. Kate Jarvis bring a powerful blend of expertise (and spice ️): Johnny has 17+ years applying data and analytics to Real Estate, while Kate holds a Stanford PhD and 12 years of executive experience across Silicon Valley and London startups. At Fifth Dimension, we're demanding yet encouraging, valuing experimentation and kind challenges. Our company values, Own It, Ship It, and Don't Be Boring, drive us to deliver exceptional results while fostering a culture of innovation and continuous improvement. The Challenge It's 9 AM on a Monday. Using Claude Code, you've just implemented a new extraction pipeline that transforms how property leases are analyzed. By noon, a major real estate firm emails: "This just saved us 40 hours of work." By Thursday, you're troubleshooting with their development team as they integrate your APIs into their enterprise document management system. By Friday, you're celebrating with the team as data flows seamlessly between platforms, unlocking new capabilities for real estate investors that will help them make faster, more informed decisions across their portfolios. About You You're an expert software engineer who's witnessed the transformative power of AI and wants to apply it to solve real business problems. You don't just code you architect solutions that make users say "How did we ever work without this?" You've developed exceptional engineering and architectural skills through years of practice. You stay current with AI advances and can identify the right approach for each unique challenge. Your experience implementing AI in business contexts has taught you that the magic isn't in the model it's in understanding the problem deeply. You're proficient with AI coding assistance tools like Claude Code, leveraging them to accelerate development and focus on higher-level architectural challenges. You understand that modern engineering means effectively collaborating with AI to maximise your productivity and creative potential. Details don't escape you. You're comfortable diving into complex documents and intricate code to build a complete picture. As someone who thrives in fast-paced environments, you adapt quickly and mentor other engineers while collaborating effectively with commercial teams and customers. You're passionate about your personal growth and see each complex problem as an opportunity to expand your capabilities. You actively seek challenges that push the boundaries of what's possible and value environments where you can both contribute your expertise and continue to evolve as an engineer. Your Impact Reporting to our CTO Chen, you'll architect and implement innovative AI technology to meet our enterprise customers' unique needs. Working closely with our skilled engineering team, you'll design scalable AI solutions that deliver tangible value and expand the capabilities of our generative AI platform. You'll own the complete lifecycle of core product capabilities from initial customer conversations through architecture, implementation, deployment, and customer adoption. Day to Day, You Will Think like a Product Manager+: Own core product components while balancing technical excellence with business impact Own end-to-end delivery of complex features from initial concept to production deployment and customer adoption Collaborate with product and commercial teams to understand customer needs and translate them into robust technical solutions Leverage AI coding tools like Claude Code to accelerate development workflows Lead development of features solving our customers' most complex challenges: Advanced data extraction systems for processing property leases at scale Sophisticated workflow automation for analyzing planning documents and drafting advice Multi-step agentic content generation for creating market research reports Implement data privacy and security by design Stay ahead of relevant research and technologies Mentor other engineers and help establish engineering best practices Invest in your own growth by taking on ambitious technical challenges and expanding your expertise Apply our engineering philosophy: intellectual honesty, effective time management, clear communication, and innovation Our Values and Engineering Culture At 5D, we embody three core principles: Own it, Ship it, and Don't be boring. Our engineering team values: Product-Minded Engineering: Understanding the "why" behind features and using technical expertise to inform product decisions Intellectual Honesty: Backing discussions with data and acknowledging knowledge gaps Effective Time Management: Setting clear timebox and abandoning approaches that aren't working Clear Communication: Writing self-documenting code and providing detailed explanations Innovation Mindset: Forming well-reasoned opinions backed by data and continuously learning Personal Growth: Supporting your development through challenging work and opportunities to expand your expertise Intellectual Curiosity and Honesty in Action: An Example Here's an example of how we work: Early in our journey with AI, one of our engineers discovered that certain words like "concise" or "creative" had disproportionate effects on model outputs we called them "demon words." Rather than accepting this as an immutable quirk, they spent a week methodically tracking down every instance in our codebase, testing alternatives, and documenting the patterns they found. This intellectual curiosity to understand the "why" behind technical oddities, combined with the honesty to admit what we didn't yet understand, led to significant improvements in our product's reliability. At 5D, we value this combination of curiosity and honesty above all the willingness to dive deep into unexpected behaviors and openly share both successes and failures with the team. What We're Looking For Experience in high-growth startups or fast-paced tech environments Track record building software in organizations with excellent engineering practices History of owning end-to-end product development, from definition to delivery and customer adoption Strong Python skills with a track record of shipping customer-facing features on critical paths Experience building and maintaining high-quality APIs and integrations Proficiency with AI coding assistance tools (Cursor, GitHub Copilot, Claude Code) Intellectual curiosity and honesty digging deep into problems and sharing findings openly Proven ability to make technical decisions that balance immediate user needs with long-term architecture Exceptional communication abilities for explaining complex concepts to diverse audiences Ambition and resilience we're a seed-stage company tackling ambitious challenges Commercial awareness delivering continuous value to customers is essential Passion for personal growth and continuous learning Nice to Have (But Not Required) Past experience in real estate, law, or finance Background with robust software testing and deployment practices Experience with component-based system design and microservices Contributions to open-source projects or broader technical communities What we offer you We're building something extraordinary and we want extraordinary people. Our benefits package goes beyond the standard startup offering from tailored support for life's challenges (IVF, gender-affirming care, ADHD diagnosis, and more), to meaningful parental leave. £100,000-160,000 salary per annum + meaningful equity (on a standard vesting schedule) Enhanced Pension Contributions - 5% Unlimited annual leave £100 monthly well-being budget Tailored support for exceptional challenges. This looks different for everyone, but can include contributions to: Gender-affirming care Private specialist and scans for an injury ADHD / Autism diagnosis IVF Therapy Enhanced Parental Leave 14 weeks full pay (followed by standard statutory pay) for primary caregiver 6 weeks full pay for secondary caregiver Electric Car Scheme (salary sacrifice) £1000 annual training budget The process Submit your CV, along with answers to the handful of questions we ask of every candidate A call with our CTO to explore the initial fit A live task and competency interview An in person culture fit interview with a range of people across the business, including the 2 founders Alternatively we offer a paid-for one-week trial for candidates who are available for the setup

Pexip has an engineering-centric culture with an uncompromising focus on software quality; we use CI and test automation and have a quality assurance ethos that we are immensely proud of! Pexip is seeking a talented Full Stack Software Engineer to join our Engineering organization. As a member of our team, you will be working alongside engineers based in both the UK and Norway and sharing responsibility for the continuous development and improvement of our Pexip Secure Meetings offerings, including Pexip Secure Meetings for Justice. The work location for this role is our office in Reading, UK working alongside other team members in that location. We would also consider candidates who could work from our office in Oslo, Norway. This is not a remote role, although there is some flexibility to work from home when it is needed. You must have the right to work in either the UK or Norway; Pexip will sadly not be able to sponsor work visas or relocation for this role. Role and Responsibilities Your day-to-day work will initially focus on developing new features, as well as maintaining, testing, debugging and creating automated tests for these features for our management software Pexip Secure Meetings for Justice. You will also be asked from time-to-time to assist with development of other related products and offerings in our portfolio. You will collaborate with other developers working on the same codebase, as well as working alongside product owners, UX designers and other developers. We are looking for someone that is passionate about continuous learning and eager to develop new skills. To be successful in this role, you are likely to have following: A software engineering background Solid knowledge of Python and the Django web framework - the foundation of this product At least 2 years of experience of web front-end and back-end development Familiarity with git / github and experience of giving and receiving code reviews Experience writing and maintaining automated unit and e2e tests for the functionality you develop Experience with interacting with backend APIs (REST, Websocket) An understanding of secure software development and maintaining software with a complex SBOM Great written and spoken English, including the ability to learn about and discuss complex architectures with other developers A basic foundational understanding of the networking protocols used by the web A high level of conscientiousness and self-motivation Good design judgment and an ability to consider and empathize with end-users needs when designing UI interactions and workflows. Great teamwork and communication skills Highly Desirable: An understanding of and experience of asynchronous programming (such as python Twisted or AsyncIO or similar) A good understanding of Linux A solid understanding of databases Experience of working with UX design teams and Figma Experience triaging security issues in dependencies and keeping systems patched and up to date Experience with working with design systems An understanding of how to develop High Availability web services An understanding of self-hosted product development and Virtual Machine based infrastructure Experience with building and maintaining CI pipelines, Containerization, (e.g. Docker) Knowledge of Cloud Providers such as GCP, Azure and AWS or similar is a plus. A working knowledge of Javascript and Typescript and Web Javascript Frameworks (such as React) would be beneficial Familiarity with video conferencing would be a bonus Don t meet all the requirements? We would like to hear from you if Pexip sounds like a place you would like to work! Why Pexip? Pexip is a video technology specialist, providing a wide range of organizations with seamless video communication regardless of technology platforms and security requirements. We partner with leading industry players and power the critical conversations that people rely on every day - everything from business communication to ultra-secure government meetings, doctor s appointments, and court proceedings. Pexip is an equal opportunity employer and evaluates applicants regardless of an individual s age, race, color, gender, religion, national origin, sexual orientation, disability, or veteran status. We celebrate diversity and are committed to creating an inclusive environment for all employees. Diversity and culture are what make Pexip so unique.

The Cyber Security Analyst Linux Estate will be responsible for ensuring the secure configuration, design, and operation of the organisation s Linux infrastructure. As a key member of the Cyber Security Team, the individual will work closely with Linux platform teams and broader IT stakeholders to embed secure-by-design principles into the Linux estate, ensuring alignment with cyber security best practices, regulatory compliance, and risk management strategies. This role offers the opportunity to make a significant impact on the organisation's security posture across the extensive Linux estate. Your role will involve Secure Development & SDLC Integration - Embed secure development practices across all stages of the SDLC, from design and build through to deployment and maintenance. Ensure security requirements, patterns and controls are incorporated early into application and platform design. Promote and enable secure-by-design and security-by-default principles across the development community. Advisory & Assessment - Provide hands-on security advisory support to software engineering teams, architects and product owners. Conduct security design reviews, code assessments and threat modelling activities. Assess development pipelines, tooling and environments to identify security weaknesses and improvement opportunities. Monitoring & Detection - Monitor development environments, repositories and pipelines for poor security practices, exposed secrets, credentials and misconfigurations. Support the identification, triage and remediation of security findings in collaboration with development teams. Security Automation & Tooling - Design, implement and maintain automated security checks within CI/CD pipelines, including static, dynamic and dependency scanning. Enable consistent and scalable security controls through automation, reducing manual overhead and improving developer experience. Work with platform and tooling teams to integrate security capabilities into development ecosystems. Collaboration & Culture - Foster a collaborative, trust-based relationship between the Cyber Security team and the development community. Act as a security champion, influencing ways of working and promoting security awareness and ownership within engineering teams. Build strong working relationships with internal and external colleagues, partners and suppliers. Continuous Improvement - Stay current with emerging threats, secure coding techniques and DevSecOps best practices. Contribute to the evolution of secure development standards, patterns and guidance. Support continuous improvement of Heathrow s application security maturity. These skills are essential Minimum 3 years relevant technical experience in Cyber Security, application security, secure development or DevSecOps. Practical experience working within software development environments and modern SDLC practices. Strong understanding of application security principles and common vulnerabilities (e.g., OWASP Top 10). Experience embedding security into SDLC and CI/CD pipelines. Familiarity with security tooling such as SAST, DAST, dependency scanning and secrets detection. Strong stakeholder engagement and relationship-building skills. Collaborative mindset with a focus on enablement rather than control. Ideally, you will also have: Experience working in DevSecOps or agile delivery environments. Exposure to cloud-native development and platforms. Knowledge of infrastructure-as-code and container security concepts. Experience supporting secure development in regulated or critical national infrastructure environments. About us There s something so special about working at the world s most iconic airport. Its sights. Its sounds. Its constant air of excitement. Heathrow is an amazing backdrop to a career filled with unique opportunities. Every day, you ll discover a world full of fresh possibilities and end the day buzzing with stories to tell, as you encounter people from all cultures, nationalities and experiences. A world full of pride for what we do and no end of exciting career prospects to explore. It brings out the best in all of us. And inspires everyone to deliver on our ambitious plans. Together, we re working to welcome millions more passengers while ensuring aviation can continue to be a force for good by leading global efforts in sustainability. Join us on that journey and we'll help you achieve your ambitions too. Supporting you to learn, encouraging you to be yourself, backing you to achieve more than you might ever have imagined. Because there s no place like Heathrow. Our rewards We offer competitive salaries and excellent benefits that will support you now and in the future. As well as performance-based annual bonuses and our longer-term Share in Success Bonus plans, we also offer generous annual leave allowances and market-leading pensions. With family friendly policies, access to private health insurance and a wide range of wellbeing tools, we ll support you to be at your best inside and outside work. And of course, we ll provide varied learning and development opportunities too. Here you ll find everything you need for a fulfilling career journey that can take you in exciting directions. Working Location Our Hybrid working approach offers the opportunity for colleagues in some roles to work from home for an average of two days a week, providing the flexibility to work in an agile way whilst ensuring we deliver for the operational needs of Heathrow. Working arrangements vary from team to team and will be confirmed during the recruitment process. You ll need to be based in the UK and within a commutable distance to Heathrow. Sustainable Travel to work Heathrow s Sustainable Travel Guide sets out easy and sustainable travel options that everyone can access. Equal Opportunities As an equal opportunities employer, we encourage applications from all. We believe that diverse talent makes us stronger not least because we welcome passengers from all corners of the globe, every single day. Heathrow is an accessible place to work. With five diversity networks, we champion inclusivity and celebrate individuality.