Senior Full Stack Developer React Python Jobs in UK

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Senior Full Stack Engineer (must be based in UK)

Senior Full Stack Engineer (must be based in UK) PolyAI automates customer service through lifelike voice assistants that let customers lead a conversation. Our voice assistants help businesses deliver outstanding customer service that rivals human agents. Our customers span leading brands, expan ...

Senior Full Stack Engineer — AI Martech (Hybrid/Remote UK)

A leading venture capital firm in the UK is seeking a Senior Full-Stack Engineer to develop LLM-powered products in marketing technology. You will lead the design and implementation of scalable web applications, ensuring collaboration with AI engineers and product managers. The role demands 5+ years in full-stac ...

Senior Front End & Full Stack Tech Lead, AI Ready

CitNOW Group in the United Kingdom is seeking a Senior Engineering Leader to oversee full-stack technology teams. The successful candidate will drive the development of a new strategic SaaS product and mentor engineers in both front-end and back-end technologies. Key responsibilities include establishing best pr ...

Senior Product Engineer AI Driven Full Stack B2B SaaS

Marcode, an AI-first company based in the United Kingdom, is seeking a Senior Product Engineer. This role involves owning features across the app, API, and data platform, emphasizing a full-stack approach. Candidates should have strong experience in B2B SaaS products and fluency with AI coding tools. You will be ...

Senior Full Stack Engineer (Must be based in UK)

Senior Full Stack Engineer (Must be based in UK) United Kingdom 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 ag ...

Remote First Senior Software Engineer — AI Driven Full Stack

Who Gives a Crap is seeking a Senior Software Engineer to architect and develop scalable full-stack solutions. This remote-first position requires skills in system design, Node.js/Express, and proficiency with AI coding assistants. The successful candidate will work on innovative projects that make a positive im ...

Senior Full Stack Engineer: End to End Platform Ownership

OnBuy seeks a Senior Full Stack Engineer for a UK remote role responsible for building and evolving their commerce platform. The position involves end-to-end delivery of features across UI, APIs, and backend systems, requiring strong skills in PHP, JavaScript frameworks, and database management. Applicants shoul ...

.NET Developer – Exeter

.NET Developer - Global Fitness Movement - Exeter, Devon Tech stack: .NET Developer, .NET 9, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer Born in 2012 in California, ou ...

Software Developer Data Products and Services

Position Overview:The Data Products and Services team uses some of the most cutting-edge technologies and cloud offerings to design, build and maintain machine learning frameworks, data science tools, microservices, web applications and other data driven products. We actively seek to work with t ...

Software Developer Data Products and Services

Position Overview:The Data Products and Services team uses some of the most cutting-edge technologies and cloud offerings to design, build and maintain machine learning frameworks, data science tools, microservices, web applications and other data driven products. We actively seek to work with t ...

Application Developer

Application Developer - Stock Management ApplicationContract Length: 3 monthsRate: £400 per day (Outside IR35)Location: Newark (1 day per week onsite) OverviewWe are seeking an experienced Application Developer to support the development of a stock management application. You'll w ...

Frontend Developer

Pipped Cambridge, England, United Kingdom Frontend Developer Pipped Cambridge, England, United Kingdom Front-End Developer (TypeScript / React) Location: Cambridge (Hybrid - In office 3 days per week) Type: Full-time, permanent A ...

Senior Software Engineer

The MissionPerk (formerly TravelPerk) is an industry-leading platform designed to simplify business travel and expense management. We believe that shadow work—the manual drudgery of admin and bookings—stifles innovation. Our mission is to automate these hurdles, giving time back to employees at over 10,0 ...

Software Engineer

Job Detils: Role Name : C# Developer Type : Contract – Inside IR35 Location : Bromley (BR1 1LR), UK Hybrid/Remote : Hybrid – 2 to 3 days per week onsite Start Date : ASAP Duration : 2 Years Job Description: • This ...

Software Engineer

Job Detils: Role Name : C# Developer Type : Contract – Inside IR35 Location : Bromley (BR1 1LR), UK Hybrid/Remote : Hybrid – 2 to 3 days per week onsite Start Date : ASAP Duration : 2 Years Job Description: • This ...

Software Engineer

Job Detils: Role Name : C# Developer Type : Contract – Inside IR35 Location : Bromley (BR1 1LR), UK Hybrid/Remote : Hybrid – 2 to 3 days per week onsite Start Date : ASAP Duration : 2 Years Job Description: </p ...

Remote‑First Senior Full‑Stack Tech Lead (C#, .NET)

A leading software scale-up in Scotland is seeking to hire five exceptional Senior Software Engineers / Tech Leads to contribute to their AI-powered platform. The role involves hands-on leadership, guiding cross-functional teams through complex challenges and fostering a collaborative environment. Candidates sho ...

Senior Full Stack Engineer: Real Time Data UI Platform

A leading cloud analytics firm in the UK seeks a Senior Full-Stack Engineer to design and build scalable user interfaces for data-heavy applications. The role emphasizes frontend expertise while requiring collaboration across backend services. Ideal candidates will have at least 5 years of experience and profici ...

Senior Full Stack Engineer: Node.js, AWS & Kubernetes (Remote Europe)

is seeking a Senior Full Stack Engineer to join their remote team in Europe. You will build and scale digital payment and account infrastructure using Node.js and AWS, work on backend services, and improve cloud-native systems. The ideal candidate has over 4 years of experience, strong skills in Kubernetes, Pos ...

Full Stack AI HealthTech Engineer: Scale & Impact

A HealthTech company in Manchester is seeking a full-stack software engineer to join their growing product and engineering team. You'll design and build applications for thousands of users while ensuring high performance and seamless user experience. With a focus on technologies like Python and React, you’ll wor ...

Full Stack Engineer for AI Safety Tools

An innovative tech firm in London is seeking Full-stack Software Engineers to develop cutting-edge tools for AI safety research. You will lead projects to analyze model evaluation results and collaborate closely with research teams. Candidates should have solid experience in Python and React, alongside a passion ...

Principal Software Engineer – AI & Cloud (UK Travel)

A leading technology and consulting firm in London seeks a Manager to lead client accounts and engineering initiatives. The position demands proven leadership in managing teams and client relationships, with full-stack engineering skills across technologies such as React, Node.js, and Python. Candidates should a ...

Agent Powered Full Stack Engineer for AI Brand Platforms

A technology consulting firm in Greater London is seeking a Full Stack Engineer to build advanced AI products. This role involves developing autonomous systems for major brands and seeing your work in action quickly. Ideal candidates are skilled in React, Node, and Python, with strong experience in Claude Code. ...

Full Stack Engineer: Build Scalable Cloud Apps & AI Tools

Barclays is looking for a Full Stack Engineer based in Northampton to design and build intelligent automation solutions. The ideal candidate will develop backend services, cloud-native infrastructure, and modern React UIs using AWS, Python, Docker, and other modern technologies. Responsibilities include deliveri ...

Member of Technical Staff (Backend Software Engineer)

Perplexity is looking for experienced Infrastructure Engineers to join our small team revolutionizing the way people search and interact with the internet. You will be responsible for leading the design, implementation, and scaling of tools, systems, and platforms that empower web, mobile, and browser engi ...

Python Developer | Front Office | Greenfield Energy Trading | London, Hybrid | £800/Day Inside IR35

Python Developer | Front Office | Greenfield Energy Trading | London, Hybrid | £800/Day Inside IR35 A Python Developer with strong core engineering skills is required by a leading Trading House institution to support the front office teams in the business. This Python Desk Developer will b ...

Senior Full Stack Engineer (£80 150k + Equity) at Encord

Job Title Senior Full-Stack Engineer (Front-End Leaning) at Encord Salary £80-150k + Equity Company Encord - Series C AI infrastructure platform backed by CRV and Y Combinator Location London, UK Job Description You will lead ...

Senior Full Stack Engineer (£80 150k + Equity) at Encord

Job Title: Senior Full-Stack Engineer (Front-End Leaning) at Encord Salary: £80-150k + Equity Company Description: Encord - Series C AI infrastructure platform backed by CRV and Y Combinator Job Description: You will lead development of Encord's sophi ...

Software Engineer

Software Engineer Hybrid: Central Bristol office 3 times per week. £60-£70,000 + | 8-12% bonus | Pension contributions doubled 6% = 18% We're excited to be recruiting exclusively for a Software Engineer, to join a Start Up-style team within a global, insights ...

Remote First Senior Software Engineer: Lead Full Stack SaaS

A leading SaaS platform provider is seeking a Software Engineer to design and develop cloud-enabled products. The position requires experience in developing full-stack web applications and collaborating with distributed teams. Candidates should possess a B.S. in Computer Science or equivalent, along with knowled ...

Senior Full Stack AI Engineer: Build Production Ready AI

A leading technology company is seeking a Full Stack Engineer to join their team in Birmingham. The ideal candidate will have 5+ years of experience in software engineering and be proficient in React, TypeScript, Python, and Node or Go. This role involves building and shipping AI-driven features and requires a s ...

Lead Full Stack Engineer (Java / Vue.js)

Lead Full Stack Engineer (Java / Vue.js)Our client based in Manchester City Centre is currently looking for an experienced Java engineer to join our growing team as a Lead Full Stack Engineer, helping to shape and deliver high-quality, end-to-end solutions across their platform.This is a key role ...

SDLC Lead: DevOps & Full‑Stack Transformation

i3Works in Bristol is seeking an SDLC Consultant / Lead to shape their DevOps and Full Stack capabilities. This full-time position involves managing software delivery processes, enhancing client solutions, and mentoring developing engineers. Candidates should possess strong experience in SDLC practices and DevOp ...

Lead Full Stack Engineer (Frontend Leaning)

Senior Full‑Stack/AI Engineer (Frontend-leaning) Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been helping organisations build better digital products and stronger digital teams since 201 ...

Full Stack Software Engineer – Logistics & WMS

A leading logistics company based in Leicester is seeking an experienced Software Engineer to join their dynamic team. The role offers the chance to work with innovative software products and make a significant impact on delivery quality within an Agile framework. Candidates should have a strong background in so ...

Full Stack Engineering Specialist AI Trainer

Full Stack Engineering Specialist - AI Trainer Join to apply for the Full Stack Engineering Specialist - AI Trainer role at Invisible Expert Marketplace Full Stack Engineering Specialist - AI Trainer 1 day ago Be among the first 25 applicants <p ...

Generalist Full Stack Engineer for Charities

A tech-driven charity platform in Greater London is seeking an experienced full stack developer to play a crucial role in shaping their innovative software. The candidate will be responsible for writing front-end and back-end code in JavaScript and TypeScript, and will work collaboratively on architecture and fe ...

Graduate Full Stack Engineer — Mentored Growth

An innovative technology company in London seeks a Graduate Full Stack Engineer. This entry-level role offers exceptional training and mentoring, aiming at recent graduates with a passion for technology and creativity. Ideal candidates will have strong academic credentials, technical skills from projects or inte ...

JR Graduate Agile Full Stack Engineer

About the job JR Graduate Agile Full-Stack Engineer At Theodo we aspire to be a “Career Sanctuary” (or a “safe”, career “fast lane”) where opportunities and inclusion are accessible to all, and people are treated with respect and progress based on merit. From Day 1 we will accelerate your t ...

Full Stack Engineer, Pathogen Data Platform

A leading scientific research institute in Oxford is seeking a Full Stack Software Engineer to design, build, and maintain user-facing components of a high-performance data platform. This role involves collaboration with cross-functional teams, implementing secure and scalable backend APIs, and working with big ...

Software Engineer III Java Full Stack

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer III at JPMorgan Chase within Corporate and Investment Banking, specifically in the PostTrade Technology team, you serve as a seasoned member of an agile team to d ...

Hands On Principal Full Stack Architect

A leading tech development company in the UK is seeking a principal-level full-stack engineer with over 15 years of experience. The ideal candidate should have expert-level knowledge in PHP and modern JavaScript frameworks, a solid understanding of cloud deployment, and a strong capability in managing complex we ...

Full Stack Software Engineer — Hybrid (Manchester)

A leading technology firm in Manchester seeks a Software Engineer to contribute to developing innovative solutions that enhance public safety. The role involves full stack development using modern technologies like React and Java, and requires strong software development fundamentals. Candidates should have expe ...

Software Engineer (Full stack) Manchester, UK

With a new injection of funding into the company, we are now looking to significantly grow our product & engineering team. This is a unique opportunity to be a core member of a high-performance team scaling an AI HealthTech company. As a full-stack software engineer, you will be responsible for designing a ...

Full Stack LLM Development Associate Manager

Full Stack LLM Development Associate Manager Location: London Salary: Competitive salary and package dependent on experience Career Level: Associate Manager Accenture is a leading global professional services company, providing a broad range of services in strategy and con ...

Software Engineer Full stack (All Levels)

Software Engineer-Full stack (All Levels) Posted Aug 2, 2023 Description What We’re All About at Kroo Kroo has a big vision. To be the first bank that is both trusted and loved by its customers. We’re helping people take control of their financ ...

Full Stack Engineer Performance & Design Systems

A leading freelancing platform is seeking a Full-Stack Software Engineer with 2-4 years of experience. You will work across the stack to enhance performance and user experiences. Responsibilities include solving performance issues, optimising load speeds, and collaborating with teams to build scalable systems. C ...

Lead Full Stack Engineer & Tech Leader

A high growth climate tech company is seeking a Lead Full Stack Engineer to blend technical leadership with people management. In this pivotal role, you will be responsible for writing production-grade code and guiding engineers through mentorship. You should have a strong background in JavaScript and TypeScript ...

Full Stack Java Engineer: Microservices & Frontend

• High concurrency and scalability patterns • Strong knowledge of: • System trade-offs (consistency vs availability, latency vs throughput) • API design and service boundaries • Fault tolerance and resilience design • Experience with system decomposition and domain modelling ...

Software Engineer (Frontend / Backend / Full Stack)

Please Note: Any offer of employment is subject to satisfactory SC security clearance which requires 5 years continuous UK address history, typically including no periods of 30 consecutive days or more spent outside of the UK. Note: The above information relates to a specific client requirem ...

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    Senior Full Stack Developer React Python Jobs in United Kingdom Job Search Guide, Trends and Insights