1 to 25 of 30 Permanent Senior Full-Stack Engineer Jobs in London

Senior Software Engineer (AI Focus) - £80,000-£140,000 + Benefits + Shares + Bonus | London, Edinburgh, or Manchester | Hybrid (Up to 3 Days Onsite per Week, usually less) Join one of the UK's most exciting AI consultancies, an official OpenAI Global Partner founded … leadership team who have already built and sold a multimillion-pound tech business. They're expanding rapidly and looking for Senior AI/ML Software Engineers (Backend or Full Stack) with strong Python skills and a genuine passion for AI/ML, scalable systems ...

Senior Full-Stack Engineer Fully Remote | UK Salary: Up to £100,000 Neulinx have partnered with a fast-growing B2B SaaS product company to hire an experienced Senior Full-Stack Engineer to join their … What they're looking for 8+ years' experience building production-grade SaaS products Strong hands-on experience with Node.js and TypeScript Solid full-stack background, with professional experience using React or Angular Experience working with relational and NoSQL databases such as PostgreSQL, Redis or MongoDB Comfortable ...

Senior Full-Stack Engineer – AI Creative Platform 📍 Central London (3 days on-site) | 🕒 Full-time We’re an AI-first technology company building tools that help creators, studios, and brands produce stunning visual content. Our products sit at the intersection … storytelling, and cutting-edge AI—and they’re already used by millions worldwide. We’re now looking for a Senior Full-Stack Engineer to help build and evolve our AI-powered creative platform. This is a high-impact role for someone ...

Senior Software Engineer (Full-stack) - Permanent | On-Site | London Join a rapidly scaling US-backed startup at a pivotal moment. With significant funding secured and strong momentum, they are establishing their UK presence and offering exceptional equity opportunities for early team members. … Senior Software Engineer, you'll work across our Python and TypeScript stack, contributing wherever the team needs you most. What You'll Be Doing: Develop and maintain FastAPI (Python) and Next.js (TypeScript) applications. Own features end-to-end - from user interface through to infrastructure ...

Senior Full Stack Engineer | Up to £110K | One of the UK's fastest growing AI platforms | UK Remote | React/Node/TypeScript I am currently working with one of the fastest-scaling platforms in the creator economy which is a creator … fast, without breaking trust Deliver high-quality systems at the pace of a rapidly scaling global platform. Senior Full Stack Engineer | Up to £110K | One of the UK's fastest growing AI platforms | UK Remote | React/Node/TypeScript ...

Senior Full Stack Engineer | Up to £110K | One of the UK's fastest growing AI platforms | UK Remote | React/Node/TypeScript I am currently working with one of the fastest-scaling platforms in the creator economy which is a creator … fast, without breaking trust Deliver high-quality systems at the pace of a rapidly scaling global platform. Senior Full Stack Engineer | Up to £110K | One of the UK's fastest growing AI platforms | UK Remote | React/Node/TypeScript ...

Senior Full Stack Engineer/Developer (TypeScript React Data) Remote UK to £90k Are you a data savvy Full Stack Engineer? You could be progressing your career in a senior, hands-on Senior Full Stack Engineer at a scaling Fintech who have built an energy trading platform to revolutionise energy buying for large industrial and commercial users. What's in it for you: Salary to £90k Remote working Impactful role with complex challenges Great career ...

working with clients who value deep technical expertise and long-term impact. The role We’re looking for a senior full-stack engineer who thrives on solving complex technical problems. In this role, you’ll work on the systems that … experience owning projects from start to finish, working cross-functionally with peers and leaders, while acting as a consultant as much as a senior engineer. Strong experience building and maintaining production systems using Ruby on Rails, with the ability to reason about trade-offs, constraints, and long-term ...

cutting-edge platform is shaping the future of property intelligence 👩🏽 About the Role We’re looking for a skilled Senior Full-Stack Engine er to join our lean and fast-moving team. This is a development-focused role where you’ll take ownership … welcome, your primary focus will be on turning technical requirements into production-ready solutions. 🎯 What You’ll Do Design, build, and maintain full-stack features across the platform Develop performant and accessible front-end components u sing React (Vite) + Tailwind CSS Build scalable and type ...

About The Role Job Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. … process optimisation initiatives. Communicate complex technical concepts effectively to non-technical stakeholders. About You Professional knowledge and experience Essential Proven experience in full-stack software development, including design, development, testing, and deployment. Significant hands on experience with Java, Spring Boot and Microservices. Strong understanding of Agile ...

Senior Full Stack Engineer/Developer (TypeScript React Data) Remote UK to £90k Are you a data savvy Full Stack Engineer? You could be progressing your career in a senior, hands-on Senior Full Stack Engineer at a scaling Fintech who have built an energy trading platform to revolutionise energy buying for large industrial and commercial users click apply for full job details ...

GenAI Full Stack Engineer - Consultant/Senior Consultant Salary: £60,000 - £70,000 pa + £4,000 Bonus plus benefits, perks and healthcare options Job Type: Permanent - Hybrid/2 x days per week - Travel to client site Base Locations: London, Manchester … Newcastle, Glasgow Overview: We're looking for a GenAI Full Stack Engineer who is passionate about solving real-world challenges through technology. You'll work closely with senior stakeholders both internally and within key clients to create GenAI strategies that translate business ...

GenAI Full Stack Engineer - Consultant/Senior Consultant Salary: £60,000 - £70,000 pa + £4,000 Bonus plus benefits, perks and healthcare options Job Type: Permanent - Hybrid/2 x days per week - Travel to client site Base Locations: London, Manchester … Newcastle, Glasgow Overview: We're looking for a GenAI Full Stack Engineer who is passionate about solving real-world challenges through technology. You'll work closely with senior stakeholders both internally and within key clients to create GenAI strategies that translate business ...

Senior Full Stack Engineer – AI Startup – Up to 150k 🚀🧠 💰 Salary: £80,000 - £150,000 + meaningful equity 🏙️ Location : London, hybrid 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) 📈 Team size: 27 heads Our y-combinator backend client … fast paced start-up If this role sounds like it could be of interest, apply now! Senior Full Stack Engineer – AI Startup – Up to 150k ...

with the design team, customers, and the CEO/CTO Build and maintain both front-end and back-end components of features (full-stack ownership) Work with the design team to refine product specifications and user experience Contribute to technical architecture decisions and implementation patterns across … would love to hear from you if you have: 3–5 years’ experience as a full-stack engineer in a fast-growing product-led company (experience as a founding engineer or engineering lead is a plus) Strong proficiency in Python, React, TypeScript ...

make soime weeks 2 days a week from home. Please also note - sponsorship is not an option here unfortunately. The role As a Senior Software Engineer, you will: Understand complex business problems then propose and implement technical solutions Have input into the architecture, working closely with … Head of Technology and other senior team members Work with other engineers and the business to improve user experiences Bring your experience and enthusiasm to our engineering culture Promote excellence with technical mentoring, feedback, and code reviews Participate in planning sessions, retrospectives, stand-ups and demos Join ...

About The Role Job Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems ...

Senior Software Engineer (AI Focus) - £80,000-£140,000 + Benefits + Shares + Bonus London, Edinburgh, or Manchester Hybrid (Up to 3 Days Onsite per Week, usually less) Join one of the UK's most exciting AI consultancies, an official OpenAI Global Partner founded ...

strategy and product roadmap Requirements Fluent English language speaker. Experience: 5-8 years as a full-stack engineer building production web applications 2+ years at early-stage startups (seed to Series B) Led technical delivery of 2+ substantial features end-to-end (0?production … commerce. A collaborative, high-performance environment spanning London, Shanghai, and beyond. Competitive salary, performance-linked incentives, and flexible working arrangements. Direct exposure to senior leadership, global brand partners, and leading consumer platforms. ...

Senior Full Stack Engineer, you will lead the architecture and development of a complex React + Next.js application that orchestrates long-running jobs, visualises large datasets, and integrates with backend and computational systems. This role is within a fast-growing technology company ...

make AI safe and reliable for everyone. To help us achieve this, we're seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang, Typescript and Kubernetes experience . Python skills would also … looking for experience of different types of architectures and understanding of the tradeoffs between them. In this role, you'll be a senior contributor to the development and operation of our cutting-edge cloud-based platform. You should have a passion for both science and engineering, a proven ...

Role: Senior Full Stack Developer (C#/.NET) Salary: £90,000 - £130,000 + bonus + benefits Location: Central London - 4-5 days per week onsite Overview Our client is a high-performing, London-based investment management firm specialising in sports trading. Founded … projects with real-world impact, building predictive modelling systems that power automated trading and investment strategies. Key Responsibilities Design, build, and maintain full-stack software solutions in C#/.NET* Develop predictive models for real-time sports trading and analysis* Contribute to greenfield product development with ...

engineers across two teams, and everyone is hands on, including engineering management and the CTO, which helps us keep our processes practical and engineer-friendly. We work to minimise meetings: engineers typically have a 15-minute daily standup for in-progress updates and quick alignment with Product, plus … rotation, with each person covering one week roughly every two months. The Role As a Senior Full Stack Engineer at Medify, you will play a pivotal role in shaping our platform and technical direction. Working closely with the CTO and fellow engineers ...

would be perfect for you. A good example given is if you notice an issue in there stack, they want an engineer pragmatic and experienced enough to fix that problem, and engineers who are proactive problem solvers. This role is remote with occasional offsites, a brilliant ...

industries Provide solutions to technical problems and be able to implement it. Requirements You're an experienced full-stack engineer with at least 5 years of experience and have a solid understanding of software development principles (such as SOLID) and practices You have ...