1 to 25 of 81 Permanent Senior Full-Stack Engineer Jobs in London

Senior Fullstack Engineer - Wealth Senior Fullstack Engineer - Wealth Apply locations London time type Full time posted on Posted 8 Days Ago job requisition id CMC4309 We are looking for a Senior Fullstack Engineer to join our … on a leading role in driving technical direction, mentoring engineers, and ensuring we build robust, scalable, and high-quality solutions. We need a Senior Fullstack Engineer who is comfortable working across all aspects of our technology stack to help us deliver an exceptional customer More ❯

Senior Full Stack Engineer – THE AI Scale-Up of 2025 | Future Unicorn Up to £130,000 plus excellent stock options Remote First – London Office for those who want it Next.js | React | Typescript | Node Are you a product-focused Senior Full … who enjoys autonomy and wants to build products from end-to-end? If so, read on… Senior Full Stack Engineer – We have been exclusively engaged by one of the most exciting tech start-ups in the UK, who are looking for … and iterating, working closely with product and customers, to evolve their cutting-edge AI solutions. What is Senior Full Stack Engineer for them? The Senior Full Stack Engineer will have experience of building complex More ❯

How you'll be contributing to Accurx as a Senior Full Stack Product Engineer Accurx is already the communication software of choice for 98% of NHS … GP practises in England and is quickly expanding to other healthcare settings. We are looking for a Senior Full Stack Engineer to join us and help shape the future, and growth of our product. As a Senior Full … ideas to fill user needs, all the way through to seeing feedback come in when new features drop. Being a full stack engineer as part of a product team means you get insights into almost all of the process, from getting together brainstorm database More ❯

Please visit our careers site to find out more about working at Ki. Job Details: Senior Full Stack Engineer Full details of the job. Vacancy Name: Senior Full Stack Engineer Employment Type … squads focus on delivering high-impact features - we favour a highly iterative, analytical approach. We're looking for a Senior Full-stack Engineer to join our Development team. Principal Accountabilities: Build robust and scalable software for business critical, web-based applications. Build … Ki's core technologies. Mentor and coach colleagues in both engineering and business domain subjects. Required Skills and Experience: Experience as a mid-senior level engineer working across a modern web stack. Strong software engineering principles (SOLID, DRY, ER modelling). Professional experience with a server More ❯

Senior Full Stack Software Engineer London, UK £110K Permanent Apply Now As a Senior Engineer, you'll be a key technical contributor in building our cutting-edge AI technology platform. You'll work across the stack More ❯

We're looking for a Senior Full-Stack Engineer to help evolve our existing web SDKs and compliance platform. Customer engineering teams love our SDKs as they're easy to integrate and provide their end-users with a simple and seamless verification … platform's simplicity in the complex world of global compliance and identity. This is a full-time Senior Full-Stack engineering hire on the team. We need someone analytical and technical who enjoys a challenge. We're a small team and are More ❯

Senior Software Engineer (TypeScript Full Stack) London/WFH to £90k Do you enjoy problem solving and working with a range of technologies including functional programming languages such as Elixir, using the right tool for the job? You could be progressing your … career in a senior, hands-on Software Engineer role at a successful and profitable energy trading market data scale-up. What's in it for you: Competitive salary, to £90k + Significant Equity Hybrid working (3 days London office per week) Vitality Healthcare Continuous career development … and learning opportunities Influential role as part of a small, close knit team Complex and interesting work Your role: As a Senior Software Engineer you will take ownership, working on technically challenging Greenfield development projects. You'll be working on complex problems with scalability and reliability More ❯

Senior Software Engineer (TypeScript Full Stack) London/WFH to £90k Do you enjoy problem solving and working with a range of technologies including functional programming languages such as Elixir, using the right tool for the job? You could be progressing your … career in a senior, hands-on Software Engineer role at a successful and profitable energy trading market data scale-up. What's in it for you: Competitive salary, to £90k + Significant Equity Hybrid working (3 days London office per week) Vitality Healthcare Continuous career development … and learning opportunities Influential role as part of a small, close knit team Complex and interesting work Your role: As a Senior Software Engineer you will take ownership, working on technically challenging Greenfield development projects. You'll be working on complex problems with scalability and reliability More ❯

Full Stack Senior Software Engineer - Front Office Full Stack Senior Software Engineer - Front Office Apply locations London, Warwick Court time type Full time posted on Posted 2 Days Ago job requisition id … join us and grow your career with us. The T Rowe Price Fixed Income Front Office technology team is looking for an accomplished Senior Software Engineer/Developer in building a suite of next-generation n-tier, native cloud-based applications. In this role, you will More ❯

Senior Full Stack Engineer - THE AI Scale-Up of 2025 Future Unicorn £80-£130,000 plus excellent stock options Remote First - London Office for those who want it Next.js React Typescript Node Are you a product-focused Senior Full … who enjoys autonomy and wants to build products from end-to-end? If so, read on Senior Full Stack Engineer - We have been exclusively engaged by one of the most exciting tech start-ups in the UK, who are looking for … and iterating, working closely with product and customers, to evolve their cutting-edge AI solutions. What is Senior Full Stack Engineer for them? The Senior Full Stack Engineer will have experience of building complex More ❯

Senior Full Stack Engineer | $100m funded Decarbonisation Scaleup (B Corp) 💻 Senior Full Stack Engineer - Up to £105,000 per annum 🌱 Decarbonisation Scaleup - ~$100m funding 💰 Up to £105,000 p/a 📍 Hybrid - Central London … plethora of solutions tailored to different budgets and sectors of the economy. We are looking for a Senior Full Stack Engineer, proficient in Typescript, React and Node to join a growing team of cross functional engineers in an external facing applications team. … this will be a perfect fit. Interested? Apply within or reach out to James for more information. Senior Full Stack Engineer | $100m funded Decarbonisation Scaleup (B Corp More ❯

Senior Full Stack Engineer | £100,000 | TypeScript | React | Hybrid (1 day a week in London) My client is an industry-leading climate tech company on a mission to drive real, measurable environmental impact. They build intelligent software that automates the evaluation of … with top-tier partners to transform carbon markets through data, science, and powerful digital tools. As a Senior Full Stack Engineer , you’ll help shape the architecture and infrastructure of their core platform—automating complex workflows, integrating with external systems, and building … class technology with purpose, click APPLY , and I (Sam Barcia) will be in touch to discuss further! Senior Full Stack Engineer | £100,000 | TypeScript | React | Hybrid (1 day a week in London More ❯

functional teams to translate business needs into technical solutions. Develop and maintain resilient, high-quality code that aligns with best practices in full-stack development. Assist in the design of the technical architecture and contribute to the evolution of our development practices and tooling. Participate in … scalability. Contribute to the development of applications leveraging generative and agentic AI. What you'll need 7+ years of professional experience in full-stack development, with a strong focus on React and TypeScript. Proven experience in building scalable, high-quality applications. Familiarity with backend development, preferably … side rendering frameworks such as Next.js. Familiarity with agentic AI tools and infrastructure. Contributions to open-source projects or a portfolio showcasing full-stack projects. A passion for sustainability and eco-friendly technology. Package and Benefits Competitive salary, subject to experience, and share options giving you More ❯

Full Stack Engineer (Data Team - Mid or Senior Level) PolyAI automates customer service through lifelike voice assistants that let customers lead a conversation. Our voice assistants make it possible for businesses to deliver outstanding customer service that rivals their human agents. Our … customer service workflows. We are looking to bring on 2 roles - one Mid level and one Senior level Full Stack Engineer with a strong backend focus to join our team and help shape our data processing pipelines and cutting-edge low-code … an excellent opportunity for a technically proficient individual who is eager to learn and grow within a collaborative, fast-paced environment. Responsibilities: Full-Stack Development: Design and implement features end-to-end, using Python for backend services and React (Next.js preferred) for frontend interfaces. Create Intuitive More ❯

produced companies such as AirBnb, Dropbox, and Ginkgo Bioworks. The Role As a Senior Software Engineer focused on full-stack product development, you'll build the critical interfaces and systems that enable scientists to work with our cell manufacturing platform. You'll … system reliability. Your experience with software resilience will help us build systems that gracefully handle unexpected scenarios. Must-have Strong experience with full-stack web development using TypeScript or other typed languages. Experience with modern frontend frameworks (React preferred). Experience with backend development and API More ❯

Full Stack Engineer (Data Team - Mid or Senior Level) PolyAI automates customer service through lifelike voice assistants that let customers lead a conversation. Our voice assistants make it possible for businesses to deliver outstanding customer service that rivals their human agents. Our … customer service workflows. We are looking to bring on 2 roles - one Mid level and one Senior level Full Stack Engineer with a strong backend focus to join our team and help shape our data processing pipelines and cutting-edge low-code … an excellent opportunity for a technically proficient individual who is eager to learn and grow within a collaborative, fast-paced environment. Responsibilities: Full-Stack Development: Design and implement features end-to-end, using Python for backend services and React (Next.js preferred) for frontend interfaces. Create Intuitive More ❯

Senior Fullstack Engineer (Frontend focused) Location: London Ebury is a leading global fintech company that empowers businesses to trade and grow internationally. It offers a comprehensive suite of products, including international payments and collections, FX risk management, trade finance, and API integrations. Founded in 2009, Ebury … employees and 38 offices in more than 25 countries. Role Overview: We are seeking a frontend-focused full-stack engineer to play a crucial part in our Channels Core team. In this role, you will be working on evolving our customer-facing portals for More ❯

Senior Fullstack TypeScript Developer | MedTech/AI | Up to £100k 📍Central London - Hybrid - 1-2 days a week onsite 💰 Up to £100,000k 🦸 MedTech/Tech for Good 📈 Seed Funded AI Startup 💻 Tech Stack: TypeScript (NestJS/NextJS), AWS Join a scaling, mission-driven startup where … and reduce healthcare inequalities using the power of AI. We're partnered with an emerging medical technology innovator on the lookout for a Senior Fullstack Software Engineer to design and develop high-performance, applications and services which underpin their AI-driven healthcare solutions. This is your … well-structured, and maintainable code. Develop frontend applications using React, ensuring high-quality, performant and maintainable code that provides a seamless user experience. Senior Fullstack TypeScript Developer | MedTech/AI | Up to £100k More ❯

Programming Languages : TypeScript; JavaScript, Python Infrastructure : Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. As a Senior Full-stack Software Engineer, you will be responsible for guiding and developing the skills of junior engineers. Lead … product vision. Actively participate in product planning meetings and provide technical input to guide the team's priorities. Design, develop, and maintain full-stack applications using Node.js, AWS Lambda, React with Next.js, TypeScript, and Terraform. Write clean, efficient, and well-tested code that adheres to best … YOU Qualifications Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless More ❯

SENIOR FULL STACK ENGINEER Node.js, TypeScript, Python, React At Wave Talent, we don't want to consume any more of your time trying to decipher job descriptions to identify the information you need. Instead, we spoke with you all to understand the … You’ve got strong backend development skills in Node.js, TypeScript, or Python and experience building REST APIs. You’re a full stack engineer comfortable contributing to React-based frontend when needed. You’re passionate about working on products with real-world climate impact. You More ❯

of employment: Full-time & Permanent What is our client looking for? Our client, a London-based InsurTech startup, is seeking a Senior Fullstack Product Engineer (Founding Engineer) to drive the technical direction and product strategy alongside the founder and fractional CTO. This … leadership, offering a unique opportunity to shape both the platform's architecture and the future growth of the technical team. As a Founding Engineer, you will take full ownership of the product development lifecycle, ensuring the platform is scalable, secure, and aligned with the company's … mini-CTO", mentoring future team members and helping build the engineering function. Who you are: A seasoned full stack engineer with experience in cloud architecture, cybersecurity, and AI-driven applications. A self-starter with a product mindset, comfortable taking full ownership of More ❯

About the Opportunity Shape the Future of Digital Content as a Senior Fullstack Engineer (f/m/d) with Contentful Studio. Become a key architect of the future at Contentful, where we are redefining how the world interacts with digital content. Take on the challenge … create impactful, on-brand digital experiences at scale-shaping the future of how brands connect with their audiences. We are seeking a Product Engineer who thrives on solving tough challenges, driving transformative solutions, and pushing the boundaries of what's possible. You will build tools that enable customers … chase moving targets effectively. What you need to be successful Extensive Full Stack Expertise : Proven track record as a Senior Fullstack Software Engineer with substantial experience using TypeScript, React, and Node.js. Demonstrable Leadership : Proven experience in a senior role, such More ❯

Working With Us The Role Millions of cat parents engage with KatKin every month, and as a Full-Stack Engineer at KatKin, you'll work alongside our Engineering team in bringing our hardcore cat parent's digital journey to life. You will work closely More ❯

seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development , to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led More ❯

So Energy - Full Stack Engineer Please note, we are not able to facilitate visa sponsorship OR relocation, at present or in the future and can therefore only consider candidates matching these requirements. Job Level: Senior UK, Hybrid £65,000 - £85,000 Our … with ESB, we're well on the way. We're customer-centric, tech-led, and passionate about sustainability. The Role Reporting into our Senior Development Manager, we are seeking Senior Fullstack Engineers to join our high-performance team led by our Director of Technology. We are More ❯