20 of 20 Permanent Senior Full-Stack Engineer Jobs in London

Senior Full-Stack Engineer (Java & Python) We are seeking a high-impact Senior Full-Stack Engineer to join a growing technology team for a leading investment house supporting market data services within a regulated … enterprise environment. This role sits at the intersection of data engineering, full-stack development, and business engagement , working closely with stakeholders and external vendors to design and deliver robust, scalable technology solutions aligned to a strategic roadmap. What youll do Design, build, and maintain reliable, scalable ...

Senior Full-Stack Engineer (Java & Python) We are seeking a high-impact Senior Full-Stack Engineer to join a growing technology team for a leading investment house supporting market data services within a regulated … enterprise environment. This role sits at the intersection of data engineering, full-stack development, and business engagement , working closely with stakeholders and external vendors to click apply for full job details ...

real user needs and supports long-term transformation in the public sector. What You'll Be Doing Designing, developing and maintaining complex full-stack solutions Making architectural decisions aligned with project goals and good engineering practice Leading on CI/CD implementation and optimisation to improve … early project discovery phases Communicating complex technical concepts to non-technical stakeholders What We're Looking For Essential Proven experience in full-stack software development (design, build, test, deploy) Strong hands-on experience with Java, Spring Boot, and microservices Solid understanding of Agile and DevOps practices ...

Senior Full-Stack Engineer (Backend-Leaning) – SaaS + AI Join a seed-stage SaaS startup backed by leading VCs, adopting AI to redefine their product. They’re pre-PMF, mid-pivot, and need a hands-on engineer (~80% coding … help build, define, and scale. 💰 Comp: Up to £100k + strong early stack equity package 🧑 💻 What you’ll do Full-stack engineering, backend-leaning (Next.js FE + BE, Node.js, TypeScript, legacy Python) Collaborate with product & CEO to shape the roadmap Help guide a small ...

About the Role As a Senior Engineer and Team Lead at Futuria, you'll own the delivery, quality, and culture of a core engineering team building our AI-driven platform. This is a hands-on technical leadership role where you'll split your time between writing … experimentation, and knowledge sharing Work with Head of Engineering on architecture, partner with product and design teams About You You're a strong senior engineer ready to lead a team but who still loves writing code. You have solid technical skills, opinions about quality and architecture ...

work across frontend, backend, and database layers in a modern TypeScript-first stack. What You'll Be Doing Designing, building, and maintaining full-stack features Developing performant, accessible UI components using React (Vite) + Tailwind CSS Building scalable, type-safe APIs with tRPC on Node.js/… Owning features end-to-end - from development through to deployment What We're Looking For 5+ years' experience building SaaS platforms Strong full-stack experience in modern JavaScript/TypeScript environments Experience with: React (Vite), Tailwind Node.js, Express, tRPC PostgreSQL & Elasticsearch Comfortable operating in lean/ ...

Senior Full Stack Engineer/Developer (TypeScript Node React AWS) London/WFH to £95k Are you a full stack technologist? You could be progressing your career in a hands-on role at a well established consumer facing … impact as part of new team in a role you can shape Your role: As a Senior Full Stack Engineer you will design and develop customer facing applications, working across the full stack with a leaning towards TypeScript ...

Senior Fullstack Engineer: Cyber Startup Location: London or easy commute for hybrid setup We're partnering with a well-funded, cybersecurity intelligence company building a next-generation third-party and supply chain risk platform. The Opportunity You’ll work across the stack (backend-leaning ...

large financial services organisation is seeking a Senior Backend Engineer to join a high-performing digital engineering function. This role sits within a customer-facing mobile product environment, delivering secure, scalable solutions at scale. Working across two product teams alongside a dedicated DevOps function, you will ...

vision, and we're looking for people who want to build something that matters from the ground up. About the role As a Senior Software Engineer at Clearly, you will own and shape the full technical stack - from the data pipelines that … closely with product and commercial teams to ship features that create direct customer value What we’re looking for Proven experience as a senior or lead engineer across the full stack — backend, data, and frontend Strong fundamentals in building and maintaining data ...

Senior Full Stack Engineer | London | £100k to £150k | React | Django | FastAPI This role is for Engineers who are intellectual and driven by deep complexity. This is about building tools that help people make sense of exceptionally complex systems. You will work ...

Senior/Lead Full Stack TypeScript Engineer 📍 Remote/Hybrid 💰 Up to £130k + Up to 0.3% Equity We’re looking for a Senior/Lead Full Stack TypeScript Engineer with 5+ years … real product impact Work closely with experienced founders and operators Competitive salary and equity Flexible working environment If you're a strong TypeScript engineer who enjoys building in high-growth startup environments, apply directly or reach out to learn more. ...

Senior Fullstack Engineer (React, Python) Location: Fully Remote (UK) Salary: Up to £80,000 + Benefits Tech: GCP, Python, React, React Native, JavaScript etc. We’re looking for a talented Fullstack Engineer to join a growing, product-focused team building modern, scalable applications … provide an environment to grow and learn and on the job. Apply now to be considered. Senior Full Stack Engineer Python, React, React Native, JavaScript ...

Senior Full Stack Engineer North London (Hybrid - 2 days onsite) £70,000 - £90,000 DOE PropTech SaaS High-Growth Tech Business We're partnering with a high-growth B2B PropTech SaaS company that's transforming how property professionals access and use land ...

Senior Fullstack Engineer. Fully remote or hybrid - London £80,000 - £100,000 "If being too popular is their biggest problem, they're in a pretty good place." That's a quote from the FT! Founded just a few years ago, this company has grown into a global cultural … side of the business whilst continuing to see huge success on their marketplace. We are supporting the hiring of two senior fullstack engineers (70% ish front end) You'll: Lead development of high-performance Next.js applications Design scalable APIs (GraphQL a plus) Own code across the stack ...

Cloud Run) Architecture and system design Ability to understand and maintain an existing production system Experience designing scalable, maintainable systems Full-stack experience and ability to work across frontend, backend, and AI components ...

Senior Full Stack Engineer/Developer (TypeScript Node React AWS) London/WFH to £95k Are you a full stack technologist? You could be progressing your career in a hands-on role at a well established consumer facing ...

A great energy client based in London is looking for a Full Stack Python Engineer. Fantastic benefits, bonus, training, events, cycling scheme, pension, free breakfast and much more! If you’re ...

launch, and we operate like a top-tier creative engineering studio: small team, high taste, high ownership, low bureaucracy. We’re hiring a Senior Fullstack engineer to build the enterprise backbone that makes all of this possible: high-concurrency APIs, event-driven systems, and reliability foundations … high-impact areas: Enterprise-grade architecture Standardised patterns from intake → build → QA → deploy → measure. Secure by default, GDPR-safe, compliance-ready. Full-stack workflow automation Scalable GraphQL APIs, integrations, event-driven systems, monitoring/logging, error handling, and documentation that scales beyond you. What ...

that redefines what’s possible in fertility care. Join wawa and help transform millions of families’ lives. Who you are You are an engineer who thrives under pressure, embraces challenge, and seeks to push the boundaries of what’s possible. Long hours and high expectations don’t intimidate ...