24 of 24 Permanent Senior Full-Stack Engineer Jobs in London

Location – London (Waterloo) Salary – £70k – £85k samuel.robinson@forsythbarnes.com Senior Full-Stack Engineer We’re looking for a Senior Full-Stack Engineer to join an established development programme building and evolving a production-critical internal … long-term, actively evolving system where performance, reliability, and maintainability are key . You’ll join a highly experienced team of senior engineers and QA specialists, working in an environment that values technical ownership, autonomy, and thoughtful engineering decisions . What you’ll be doing Designing, building ...

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 Software Engineer/Full Stack 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 Senior Software Engineer … days per year Opportunity to make an impact as part of new team in a role you can shape Your role: As a Senior Software Engineer you will design and develop customer facing applications, working across the full stack with a leaning ...

glass in the sink, load the dishwasher. What it takes: The Senior Software Engineer (back-end/Full-stack) position ensures the delivery of quality software solutions to meet the technical challenges the business faces. They will play a crucial role … delivering functionality in the platform, solving technical challenges, and maintaining a high level of quality. This position requires a strong technical engineer who can deliver substantial value to an engineering team. The Senior Software Engineer is a key driver of success for Onda, responsible ...

Senior Full-Stack Engineer/Software Developer/JavaScript Engineer (Node.js/React/Next.js – AWS Serverless) London (Hybrid – Farringdon Tues/Weds/Thurs) £85k–£90k + Bonus + Excellent Benefits Discretionary bonus (10%), Private Healthcare, 25 Days holiday … particularly interested in engineers who enjoy owning both the frontend experience and the Node.js APIs behind it. You’re a thoughtful, solutions-driven engineer who cares about architecture, performance, scalability, and long-term product impact. You don’t just close tickets, you take ownership, think systemically, and write ...

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 ...

Senior Full Stack Engineer (Frontend Focus) Location: London (Hybrid) 1 day a week Salary: up to £90,000 Evantis Technology is working with a fast-growing digital marketplace platform operating in the creative/consumer space, helping them hire a Senior … high-impact features Contributing to technical discussions around architecture, scalability and product direction What they’re looking for Strong experience as a full-stack engineer with a frontend bias, particularly with modern JavaScript/TypeScript frameworks Comfortable contributing across both frontend and backend services ...

Senior Fullstack TypeScript Engineer – AWS Cloud Location: London | Hybrid We are looking for a Senior Fullstack TypeScript Engineer to join a fast-paced team building and operating mission-critical insurance applications . This is an opportunity to work on cutting-edge technology … Infrastructure as Code – Terraform CI/CD – GitHub Actions Soft Skills – Strong communication, collaboration, and problem-solving; self-starter attitude Ideal Candidate Independent engineer who can hit the ground running Passionate about building scalable, reliable, cloud-native applications Comfortable in a fast-moving, Agile environment Ready to take ...

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 ...

scalable back-end systems that power real-time AI-driven workflows. This role requires strong software engineering skills, a deep understanding of full-stack development, and the ability to work in a fast-paced, AI-first environment. You’ll collaborate with AI engineers, AI researchers … enterprise-grade solutions that enable seamless AI-human interactions. As Senior Fullstack Engineer you will: Design and build full-stack applications that power AI-driven workflows for enterprise users. Develop high-performance front-end interfaces for AI agent control, monitoring, and visualization. ...

scalable back-end systems that power real-time AI-driven workflows. This role requires strong software engineering skills, a deep understanding of full-stack development, and the ability to work in a fast-paced, AI-first environment. You’ll collaborate with AI engineers, AI researchers … enterprise-grade solutions that enable seamless AI-human interactions. As Senior Fullstack Engineer you will: Design and build full-stack applications that power AI-driven workflows for enterprise users. Develop high-performance front-end interfaces for AI agent control, monitoring, and visualization. ...

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 ...

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. ...

potential path to a permanent role with equity. Role Description This is a contract role for a Senior Full-Stack Engineer. The candidate will design, develop, and deploy a platform that integrates multiple third-party APIs, normalises inconsistent data formats across jurisdictions, and presents … party APIs and handle inconsistent external data. Experience in front-end development, building functional dashboards and user-facing portals. Strong background in full-stack development, with the ability to own an entire product from infrastructure to UI. Proficiency in Node.js or Python, React, PostgreSQL, and AWS. ...

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 ...

/Senior/Staff Backend Engineer | Full stack, Data/AI | Greentech, B2B Logistics | Recent Series A Raise | Salary up to £160,000 + Equity, Bonus, Benefits | London, Hybrid (4 days PW) The Company We are working with a Series A backed … They have hired a Director of Engineering from Meta who is scaling out the engineering devisions with 11 Backend Engineers across Mid/Senior and Staff Level. The company has signed some off the biggest brands in Ecommerce and now they are looking to increase features, functionalities ...

Senior Full Stack Data Engineer – Decho Group (Part of Accenture) About Decho Group Decho Group is a fast-growing Tech and AI consultancy, founded to solve complex data challenges for governments and enterprises. We specialise in Palantir technologies, advanced analytics … team that thrives on curiosity, collaboration, and bold thinking, working on projects that genuinely change lives and industries. The Role We’re seeking Senior Consultant Engineers who want to apply their technical mastery in AI consultancy and Palantir engineering while shaping the future of data-driven decision-making. ...

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 ...

thoughtfully rather than rewriting it, and being trusted to deliver without heavy supervision, this role will feel unusually well-matched. The role As Senior Fullstack Software Engineer, you will help design, build and maintain the production systems that power Outsmart’s platform. You’ll work closely … systems that matter. The environment We are a small, intellectually serious company. That has advantages and responsibilities. You will: Speak directly with senior decision-makers when needed Operate without perfect documentation Balance speed with long-term maintainability This role suits someone comfortable with autonomy, accountability and cross-functional ...

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 ...

versatile full stack engineer who thrives on variety and innovation? We’re hiring two engineers to join a newly formed Special Operations team — dedicated to building out initiatives that can’t be supported by busy delivery teams. Think of this as the Swiss Army ...

Benefits 9% pension contribution Stock Options Health Insurance L&D Budgets This is your chance to perform the job you love and make a difference in society whilst doing it! Help this one-of-a ...

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 ...