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

Senior Frontend Engineer/Full Stack Product Engineer - Energy About the Role Our client is hiring a Frontend Engineer/Full Stack Product Engineer to help build the software that their customers … operate with a high level of ownership, move quickly, and help shape both product and engineering direction in a growing business. Senior Frontend Engineer/Full Stack Product Engineer - Role Purpose We are looking for a Frontend Engineer ...

Senior Product Engineer, Full Stack - Energy £70,000 to £95,000 Permanent London, hybrid The opportunity Our client is hiring a Senior Product Engineer, Full Stack, to help build the next generation of customer … business and are pleased to be supporting them again on this important hire. This is a genuinely exciting opportunity for a frontend-strong engineer who wants real ownership, autonomy, and the chance to build products from scratch. They are looking for someone with strong React and TypeScript capability ...

Senior Full-Stack Engineer Introduction Join a specialist platform operating at the heart of telecoms, compliance, and secure business messaging. This is a senior, hands-on role where you’ll take real ownership of a product that underpins trust, validation ...

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 ...

RSMB is seeking an experienced and highly capable Senior Full Stack Engineer to play a central role in the design, development, and evolution of our expanding product suite, including Barb Ads Hub, NMO XCM, and our Data Fusion platform. You will join … London, and we are currently operating hybrid working: splitting the week between home and office working. The Senior Full Stack Engineer role: This role sits within the Development team in the Technology department and is critical to delivering scalable, high-performance, data ...

RSMB is seeking an experienced and highly capable Senior Full Stack Engineer to play a central role in the design, development, and evolution of our expanding product suite, including Barb Ads Hub, NMO XCM, and our Data Fusion platform. You will join … London, and we are currently operating hybrid working: splitting the week between home and office working. The Senior Full Stack Engineer role: This role sits within the Development team in the Technology department and is critical to delivering scalable, high-performance, data ...

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 ...

About the Role We are seeking a Senior Full-Stack Engineer to join our team and help build the next generation of AI solutions. This is a unique opportunity to be a key technical contributor in a fast-paced, innovative environment where … wear many hats and have significant impact on our product and engineering culture. As a full-stack engineer, you'll work across the entire technology stack—from backend services and data pipelines to infrastructure and deployment. You'll collaborate closely with ...

Senior Full Stack Engineer | Series A | London | Up to £120k Are you a Senior Full Stack Engineer looking for your next challenge at a fast-paced, high-growth scale-up? My client … consumer tech startup backed by top-tier investors and they're looking for a strong engineer to join the team at a genuinely exciting moment in the company's growth. You'll be working across the full stack, building and owning features ...

Senior Frontend Engineer/Full Stack Product Engineer - Energy About the Role Our client is hiring a Frontend Engineer/Full Stack Product Engineer to help build the software that their customers ...

inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Senior Software Engineer, Full Stack - AI Fitch Group is currently seeking a Senior Software Engineer … build ML/AI solutions (classical ML + modern deep learning/LLM approaches) aligned to product outcomes. Demonstrate proficiency in full-stack technologies for enterprise-scale websites and applications. Work as part of an agile team in design, development, debugging, and deployment efforts while addressing ...

SENIOR FULLSTACK ENGINEER Mission-led Tech | Real-World Impact 📍 Holborn, London (3 days onsite) 💼 Permanent Why this role is interesting Build and scale platforms used by millions, with tangible real-world impact Work in a high-performing, collaborative engineering team that genuinely cares about quality ...

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 Product Engineer, Full Stack - Energy £70,000 to £95,000 Permanent London, hybrid The opportunity Our client is hiring a Senior Product Engineer, Full Stack, to help build the next generation of customer ...

What we do. Electric Car Leasing Why we do it. Greener. Fairer. Future. We’re looking for a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team building the systems that power our ability to revolutionize the electric car leasing industry. ...

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 ...

Security Clearance or ability to get SC in short timescales. About the Role We are seeking a Senior Full Stack Engineer who is passionate about building high‐quality software and designing robust systems. You will work on complex, large‐scale solutions across … collaboration, and continuous learning, and we actively support innovation and knowledge sharing. Your Future Role As a Senior Full Stack Engineer, you will: Design, build, and deploy scalable, high‐quality systems Translate business and client requirements into technical solutions Work directly with ...

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 ...

services across various use cases, starting with industrial applications. We are looking for a passionate and skilled Senior Full Stack Engineer to join our innovative team in London. Our Mission At Humanoid we strive to create the world’s leading, commercially scalable ...

mission and what we offer . About the role: The Dynamic Flow team is looking for a Full Stack Engineer to support our mission to make building high quality cross-platform features as quick and simple as possible. We do this through expanding ...

team operates at pace, with a strong emphasis on ownership, performance, and continuous iteration. The Role - Remote Europe (CET 3 We are seeking Senior Backend focused Full Stack Engineers to join a fully remote, cross-functional team working on high-traffic, production-grade systems. ...

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

team operates at pace, with a strong emphasis on ownership, performance, and continuous iteration. The Role - Remote Europe (CET 3 We are seeking Senior Backend focused Full Stack Engin click apply for full job details ...