Octopus Energy Group

About Octopus Electroverse We're making electric vehicle ownership as smart and as simple as possible, by building the giant, virtual charging platform of the future. In just three years, Octopus Electroverse has grown to become one of the largest eMobility players globally, with over 1,400,000 connected electric vehicle chargers and a customer ecosystem spanning web, iOS, Android, CarPlay, Android Auto & Automotive OS, and more. But it's just the start: we're busy expanding internationally, working with more automotive and tech partners, building exciting new features at scale, and creating the integrated charging experiences of the future - all in the name of making public EV charging super simple for customers. Electroverse is a multifunctional team made up of product, development, commercial, operations, marketing, partnerships teams, and more - all focused together on making Octopus the go to name in EV charging. And we're looking for smart individuals with an interest in the space who can help us make it happen. We're looking for someone who's passionate about code, curious, and eager to learn. You'll be working alongside the backend team that provides services for our Electroverse ecosystem in the electric vehicle and electrification space with focus on helping develop the core experience for our B2C users. You'll help us develop exciting new features that make our users' lives easier, and facilitate our Mobile and Web teams to build the slickest experience possible. You'll be able to build quickly and iteratively, enabling us to build on and expand the features that really matter to our users. Our project is establishing itself as the leading e mobility provider solution within the industry and we want to take it to the next level. This means we're working on big features which will give you the chance to have a huge impact and, given our ambitions in the electrification space, influence how the back end scales to meet new challenges and create a wider ecosystem. Overall, you'll work with a small, high energy project team to bring the product to life - an exciting opportunity to work within an already established but still rapidly scaling EnTech business. What you'll do Help us build new front end features and leverage user data to build a smooth experience. Enable us to build quickly but robustly, using feature flagging and A/B testing. Bring a product mindset to an engineering role, focusing on what matters most to the end user. Work as part of a larger cross functional team to deliver best quality product for our clients. What you'll have The passion to create something amazing, and the mindset to learn and grow with the company. Experience building for front end - REST APIs, GraphQL etc. - or a willingness to learn. Experience with monitoring and debugging applications and infrastructure. Ability to discuss vision and features within a team and propose creative solutions. Experience working within a cross functional team and communicating across the whole software stack. Benefits Flexible salary discussion based on experience. Unique culture encouraging autonomy, rapid decision making, and building projects that break new ground. Recognition on UK employer awards and leadership rankings. Employee benefits hub. Equal Opportunity Statement As a genuine equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone. We encourage anyone meeting the qualifications to apply, and we will customize interview processes to accommodate individual needs.

Octopus Energy Group is seeking a passionate front-end developer to work within its Electroverse team, focusing on creating and improving user experiences in electric vehicle charging solutions. As part of a dynamic team, you will build innovative front-end features, utilizing user data to enhance functionality. This role offers a unique opportunity to contribute to a rapidly scaling EnTech business and work on impactful features that will transform the e-mobility landscape.

Octopus Energy Group is seeking a Lead Backend Engineer to join their Low Carbon Tech team in London, focused on driving the renewable energy transition through innovative solutions like EV Chargers and Heat Pumps. The role requires 5+ years of backend development experience, strong leadership potential, and a genuine interest in green technology. Candidates should be comfortable working in a collaborative environment and possess excellent communication skills. The position is primarily on-site, based in London, with remote flexibility for suitable candidates.

About Octopus Energy Octopus Energy started with a bold idea: to build Britain's first truly digital energy supplier. By combining world class tech with people who care deeply about customers, we helped drive the renewable energy transition and became Britain's largest energy supplier in 2025. We scale our services business by making it easy to switch to heat pumps, solar, EVs and by launching smart tariffs for low carbon tech. We expand the product and customer experience worldwide. Role Overview We are looking for a Senior Backend Engineer to join our Low Carbon Tech team. The team installs EV chargers, solar, batteries and heat pumps into homes to accelerate the energy transition while ensuring that scaling up never compromises a world class customer journey. What you'll do Take total technical ownership of key platform components, shaping direction and bringing clarity to ambiguous problems while ensuring solutions are well designed, scalable, and maintainable. Consistently write production ready, self documenting code that requires minimal revision, and actively improve testing strategies, non functional requirements (performance, security, scale) and test infrastructure. Tackle systemic bottlenecks and architectural risks across multi service configurations before they hit production, utilising highly systematic debugging approaches. Mentor other engineers, lead technical discussions, and perform rigorous code reviews to strengthen our systems, practices and people. What you'll need 5+ years of robust backend development experience with deep expertise in systems design, database optimisation (PostgreSQL/MySQL) and cloud execution. Excited by the possibilities of integrating AI tools into your workflow to iterate quickly, combined with discipline to rigorously check and ensure code quality. Clear communication skills, with a proven ability to translate complex technical constraints and architectural risks to non technical stakeholders (compliance, operations, business development). A genuine curiosity about the green technology landscape. Our Tech Stack Python, Django PostgreSQL, Celery and asynchronous background processing API architectures: HTTP, REST APIs, GraphQL Domain modelling, fault tolerant systems, test driven deployment (TDD) AWS, Terraform, Packer, Consul, microservices and distributed architecture scaling Benefits Competitive salary that depends on experience and skillset. Opportunity to work on products that accelerate a clean energy future. Flat hierarchies, open agile culture and autonomy in work. Work across services, marketing, operations and data teams. Location & Working Arrangement Our London office is preferred, but we consider remote candidates who can work in the UK. Equal Opportunity Statement As an equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone.

Octopus Energy Group is seeking a Senior Backend Engineer to join their Low Carbon Tech team in London. The role involves taking technical ownership of key platform components and writing production-ready code to accelerate the energy transition. The ideal candidate should have strong experience in backend development, clear communication skills, and a genuine curiosity about green technology. The position offers a competitive salary and opportunities to work on impactful products.

Octopus Energy started with a bold idea: to build Britain's first truly digital energy supplier. By combining world class tech with brilliant humans who care deeply about customers and driving the renewable energy transition, we made it happen and in 2025, we became Britain's largest energy supplier. Now, we're scaling our services business, making it easy to switch to heat pumps, solar and EVs, and launching smart tariffs for Low Carbon Tech. With this, we're also taking the learnings, products and experiences that customers love here and rolling them out worldwide. OE Tech is the engineering and product organisation inside Octopus Energy. Here you'll have real ownership, variety, and the chance to shape products that make a tangible difference in people's lives: lowering bills, enabling greener living, and delivering experiences customers genuinely love. You'll work side by side with teams across services, marketing, operations, and data, and see the impact of your work in the real world, fast. We are looking for a Lead Backend Engineer to join our Low Carbon Tech team. We are installing EV Chargers, Solar, Batteries and Heat Pumps into homes to drive the energy transition at pace. As customer demand grows, our goal is to ensure scaling up never means slowing down or compromising on a world class customer journey for low carbon tech. To make that happen, we are building a new, dedicated engineering and product team to completely re imagine this process - making it fast, transparent, and predictable for our customers from day one. This will be a small multi disciplinary team who'll sit within our much larger Low Carbon Tech team. You'll help design and build the platform architecture, data integrations, and automations that eliminate real world friction. If you want to design and build solutions to scale up electrotech in the nation's homes, this is the mission for you. What you'll do Take ownership of core initiatives and missions, bringing cross functional alignment and technical clarity while supporting your team to deliver high impact features effectively. Partner closely with Product to drive quarterly goals, offer valuable contributions to roadmap planning, and proactively structure workloads to reduce operational noise for your team. Build your leadership capability by guiding and mentoring others, supporting team responsibilities, onboarding new colleagues effectively, and creating a psychologically safe environment where people can thrive. Guide technical discussions, unblock day to day delivery dependencies, and use your influence to shape not just the technical output, but also the collaborative culture that makes Octopus an incredible place to work. What you'll need 5+ years experience of robust backend development with deep expertise in systems design, database optimisation (PostgreSQL/MySQL), and cloud execution. You don't necessarily need years of formal management experience, but you do need to show leadership potential and a sincere enthusiasm for supporting a team. You are excited to guide others and help shape a collaborative team culture. Excited by the possibilities of integrating AI tools into your workflow to iterate quickly, combined with the discipline to rigorously check and ensure code quality. Clear communication skills, with a proven ability to translate complex technical constraints and architectural risks cleanly to non technical stakeholders (compliance, operations, business development). A genuine curiosity about the green technology landscape. You won't be expected to dive into physical engineering or device level software, so you don't need to be a hardware expert - we're just looking for someone who shares our passion for getting clean energy into millions of homes. Our Tech Stack Python, Django PostgreSQL, Celery, and asynchronous background processing API Architectures - HTTP, REST APIs, GraphQL Domain modelling, writing fault tolerant systems, and test driven deployment (TDD) AWS, Terraform, Packer, Consul, microservices, and distributed architecture scaling Location We would prefer someone who can work in our London office but will consider remote candidates. You must be able to work in the UK. Equal Opportunity As an equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone. We want to ensure you have all the tools and environment you need to unleash your potential. Need any specific accommodations? Whether you require specific accommodations or have a unique preference, let us know, and we'll do what we can to customise your interview process for maximum comfort and performance.

Octopus Energy started with a bold idea: to build Britain's first truly digital energy supplier. By combining world-class tech with brilliant humans who care deeply about customers and driving the renewable energy transition, we made it happen and in 2025, we became Britain's largest energy supplier. Now, we're scaling our services business, making it easy to switch to heat pumps, solar and EVs, and launching smart tariffs for Low Carbon Tech. With this, we're also taking the learnings, products and experiences that customers love here and rolling them out worldwide. OE Tech is the engineering and product organisation inside Octopus Energy. Here you'll have real ownership, variety, and the chance to shape products that make a tangible difference in people's lives: lowering bills, enabling greener living, and delivering experiences customers genuinely love. You'll work side by side with teams across services, marketing, operations, and data, and see the impact of your work in the real world, fast. We are looking for a Senior Product Manager to join our Low Carbon Tech team. We are installing EV Chargers, Solar, Batteries and Heat Pumps into homes to drive the energy transition at pace. As customer demand grows, our goal is to ensure scaling up never means slowing down or compromising on a world-class customer journey for low carbon tech. To make that happen, we are building a new, dedicated engineering and product team to completely re-imagine this process, making it fast, transparent, and predictable for our customers from day one. This will be a small multi-disciplinary team who'll sit within our much bigger low carbon tech team. You'll champion the customer, lead rapid product discovery and continuous experimentation to build the best customer experience possible. You'll work side by side with engineers, customer operations, and field teams to shape the digital products that scale up electrotech in the nation's homes. If this is the mission for you, we want to talk. We embrace flat hierarchies and an open, agile culture that fosters innovation, flexibility, and creativity. We don't hang our personalities up with our coats and nor should you. At Octopus, we hire great people who get stuff done, all whilst being themselves. What you'll be doing Take the reins on more than one of our high impact products, shaping the vision, strategy, and roadmap, ensuring these are aligned with our overall business goals. Own the business case and ROI, making sure you keep stakeholders across Octopus genuinely excited and informed about changes and their impact. You'll also execute day to day - taking full ownership of planning, running, delivering and monitoring key missions in your area, keeping things on track and making sure everything hands off smoothly. Deliver analysis that gets under the hood of our products, constantly measuring and improving our product performance, security, and reliability. Be a product discovery champion, rapidly experimenting, vibe coding prototypes before passing them over to engineering. Figure out when to dive deep into finding a solution and when to move fast to balance real-world risks with customer value. Coach junior PMs to help them smash their career goals and share your wisdom to level up our whole product community. What you'll have A serious customer obsession where every prioritisation call comes back to the customer experience. Genuine curiosity about the home energy and electrotech space. You are hooked on solving these massive, systemic problems, not just playing with cool tech. Experience steering products that are complex, fast-changing, with plenty of stories to tell about the real value you delivered to customers or colleagues. Comfort messing around with AI to vibe code prototypes and writing your own queries so you can grab data and test ideas independently. An ability to stay calm in the grey areas. You don't panic when things are ambiguous and know how to use great discovery methods to build clarity out of chaos. Brilliant communication skills to explain the "why" behind tough decisions, handle dependencies smoothly, and get diverse teams enthusiastic about a shared goal. Plenty of self-awareness. You love reflecting on your work, actively seeking feedback, and always looking for ways to sharpen your product craft. We're open to a pure Product background, or a more technical background (maybe you used to be a dev or data scientist) or someone from a customer focused discipline (like UX design or user research). Why else you'll love it here Wondering what the salary for this role is? Just ask us! On a call with one of our recruiters it's something we always cover as we genuinely want to match your experience with the correct salary. The reason why we don't advertise is because we honestly have a degree of flexibility and would never want salary to be a reason why someone doesn't apply to Octopus - what's more important to us is finding the right octofit! Octopus Energy Group is a unique culture. An organisation where people learn, decide, and build quicker. Where people work with autonomy, alongside a wide range of amazing co-owners, on projects that break new ground. We want your hard work to be rewarded with perks you actually care about! We won best company to work for in 2022, on Glassdoor we were voted 50 best places to work in 2022 and our Group CEO, Greg has recorded a podcast about our culture and how we empower our people. We've also been placed in the top 10 companies for senior leadership. Visit our UK perks hub - Octopus Employee Benefits

About the role Octopus was founded with a mission to use technology to accelerate us towards a low carbon future. That's why we created Kraken - our own technology platform from scratch which now serves over 70 million households and is a core reason why Octopus is the number one energy supplier in the UK. We do it by hiring clever, curious, and self driven people, enabling them with modern tools and infrastructure and giving them lots of autonomy. We have been using GenAI in live, customer facing environments since 2022, including one system that creates tens of thousands of high quality emails for our Energy Specialists, combining our deep knowledge of the energy industry and the Octopus communication style with customer specific data from Kraken. We are now looking for a Senior AI Engineer. You will build and scale the systems that allow Octopus teams to use Generative AI models (LLMs, RAG, agents). You will be hands on, working with a cross functional team to build out flagship AI projects, and the platforms that enable others to succeed with Generative AI. You'll work on developing solutions that genuinely move us closer to Net Zero in a company passionate about building great technology to change the way customers use energy. You'll have wide open problems to solve, so you'll need to be comfortable with ambiguity, figuring out an approach and validating it fast. What you'll do Design and Develop AI Platform Services: Build reusable, scalable services that expose GenAI models, knowledge retrieval pipelines, and agent workflows to application teams. Knowledge Base Development: Build and maintain knowledge retrieval systems. Process heterogeneous documents like pdfs and build embedding pipelines that extract, chunk and embed into embedding models. AI Readiness: Process content from unstructured documents and make it AI ready: Optimize their structure, clear up text ambiguity, and embed rich machine readable metadata. AI Ops, evals and observability: Set up framework for monitoring and evaluating AI output quality (relevance, accuracy, safety, drift, cost) and platform observability (latency, cost, usage). Centre of Excellence: Act as a centre of excellence for the whole business in the technical side of AI and LLMs usage, setting best practices and accelerating adoption. Governance and Guardrails: Create governance layers for implementing PII redaction, prompt filtering, etc. What you'll need Deep GenAI & RAG Expertise: 2+ years of hands on experience building and productionising LLM applications, with deep technical knowledge of vector databases (e.g., Qdrant, Weaviate, Pinecone, pgvector) and orchestration layers (e.g., LangGraph, LlamaIndex). Comfortable working with heterogeneous documents like pdfs. Experience working with re ranking models. Production-Grade Asynchronous Python: Strong software engineering fundamentals with deep experience in asynchronous programming (asyncio, FastAPI) to handle highly concurrent, I/O bound LLM and database calls. Advanced Context Engineering: Proven experience solving production RAG challenges such as context window management, metadata filtering and semantic routing. Experience leveraging coding harnesses like Claude code. Modern Software Practices: Mastery of Git, automated testing and CI/CD pipelines. Experience working with cloud platforms like AWS. Comfort with Ambiguity: Ability to rapidly prototype an approach, validate it with metrics, and pivot fast in a fast moving environment. It would be great if you had GraphRAG Experience: Familiarity with Knowledge Graphs (e.g., Neo4j) and ontologies to enhance standard vector RAG with highly structured, interconnected corporate data. Local/Open Weight Model Deployment: Experience deploying and fine tuning open weight models (like Llama 3 or Mistral) via frameworks like vLLM or Ollama to optimize token costs and privacy. Prompt Caching & Cost Optimisation: Practical experience implementing semantic caching layers to drastically reduce LLM API billing and response latency. As an equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone.

Octopus Energy Group is seeking a Senior AI Engineer to develop and scale Generative AI systems that support their mission to accelerate the low-carbon future. You will work collaboratively to design scalable AI platform services and build knowledge retrieval systems. The ideal candidate will have a minimum of 2 years in LLM application development and be comfortable working with diverse documents. A commitment to navigating ambiguity in a dynamic environment is essential.

Octopus Energy Group in Greater London is searching for an experienced Solutions Architect to define the integration strategy in our Finance Systems team. This role involves assessing current systems, proposing solutions, and ensuring scalability and security. The ideal candidate will have proven experience in designing finance technology and strong stakeholder management skills. This position offers a flexible work environment and opportunities for career development.

Octopus Energy has grown exponentially over the last 10 years. It is now a complex multi billion turnover international group, which participates in multiple industry verticals including retail utilities, utilities management, generation, EV leasing and software sales. We are committed to innovation, sustainability, and customer satisfaction and as part of our growth strategy, we are implementing a number of new business management applications to streamline our finance operations and improve efficiency. As a result, we are seeking an experienced Solutions Architect to assess & define the integration strategy in our Finance Systems team. We are looking for someone who can take a fresh look at our current landscape, define what better looks like, and help identify the most effective path to meaningful change. You'll play an important role in shaping how we work: setting direction without overcomplicating things, supporting the team with care, and balancing technical curiosity with a down to earth mindset. Initial 6 month contract with potential to extend depending on business need. What you'll do Be responsible for strategic and architectural technical decisions with a particular focus on Financial Operational Systems (Finance, Supply Chain Procurements and Sales) Define and evaluate architecture options for finance systems and integrations, and present recommendations to senior stakeholders Support the definition of a cohesive and consistent data model that can serve as the bedrock of all our financial systems whilst maintaining a global view of the impact on other tech systems Assess existing systems & propose solutions to evolve finance technology to keep up with a rapidly growing scale up business Collaborate with internal & external development teams during the solution design phase to ensure that any technical solution is fit for purpose Collaborate closely with our TechOps and Security teams to ensure that the solution we choose fits within the organization, is scalable, supportable and secure What you'll need Proven experience designing finance technology and integration architectures in fast growing, agile organisations Strong experience with complex systems integration projects Experience delivering system migrations or transformations while maintaining business continuity Strong understanding of integration technologies and application architectures. Understanding of modern integration patterns, REST APIs, modern application and data architecture. Understanding at a protocol level of Single Sign On (SSO) and identity provisioning technologies such as OAuth, OIDC, SAML and SCIM Ability to produce high quality technical documentation and present complex integration concepts to both technical and non technical audiences Excellent stakeholder management, facilitation, and communication skills Benefits Salary negotiated based on experience and role fit Unique culture fostering autonomy, rapid learning, and impact Access to a comprehensive employee benefits hub Flexible working arrangements and supportive environment Opportunities for career development and skill growth Are you ready for a career with us? We want to ensure you have all the tools and environment you need to unleash your potential. Need any specific accommodations? Whether you require specific accommodations or have a unique preference, let us know, and we'll do what we can to customise your interview process for comfort and maximum effectiveness. Studies have shown that some groups of people, like women, are less likely to apply to a role unless they meet 100% of the job requirements. Whoever you are, if you like one of our jobs, we encourage you to apply as you might just be the candidate we hire. Across Octopus, we're looking for genuinely decent people who are honest and empathetic. Our people are our strongest asset and the unique skills and perspectives people bring to the team are the driving force of our success. As an equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone.