1,956,458+ Full Stack Engineer Python Javascript Jobs in UK — Top Companies Hiring June 2026

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Full Stack .NET Engineer — Hybrid (Remote 2 days/wk)

Datatag ID Ltd in Staines-upon-Thames is seeking a mid-level .Net and SQL Software Engineer to join their agile team. The role involves working on diverse projects from front-end to back-end systems in a hybrid work environment, allowing you to work from home two days a week. The successful candidate w ...

.Net Full Stack Engineer Consultant/Senior Consultant Digital Excellence

At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting‑edge solutions. Join us to drive transformation tailored to our client's challenges of today ...

Founding Full Stack AI Engineer for Agentic Sustainability Platform

annwn is seeking Founding Full Stack AI Engineers to build agentic systems from the ground up. The role involves designing AI systems that manage unstructured sustainability data, reason across complex domains, and continuously improve through feedback. The ideal candidates have 7+ years of experience ...

Senior Full Stack Engineer — Shape Real World Rental Tech

OpenRent is seeking a Senior Full-stack Engineer to design and deliver innovative software solutions that improve the rental experience for millions in the UK. In this role, you will work collaboratively across teams to tackle real-world challenges faced by tenants and landlords, influencing decisions and out ...

Principal Full Stack Engineer — Remote AI‑Powered SaaS Leader

Spectrum IT Recruitment is seeking a Principal Engineer/Lead Full Stack Engineer in St Albans, UK, to shape the future of customer-facing platforms. This role involves leading technical decisions and mentoring developers in a hybrid remote environment. The ideal candidate will have strong experience wi ...

Lead Full Stack Engineer — AI powered PHP/Laravel & React

Hedgehog Lab in the UK is seeking a Lead or Senior Full Stack Developer to build AI-powered products that transform how organizations manage procurement and document data. You'll leverage your expertise in PHP, Laravel, and React.js while working across product, design, and data teams to tackle real te ...

Lead Full Stack Engineer (React/Node) – Building Secure Apps

BAE Systems in Bristol is seeking a Lead Full Stack Developer to build systems for Law Enforcement Customers. Your role will involve designing back-end services with Node.js, creating user-friendly interfaces with React.js, and collaborating with cross-functional teams. You should have proven experienc ...

Senior Full Stack Engineer AI for Mental Health + Equity

Limbic is looking for a Senior Full-stack Engineer to develop innovative AI solutions for mental healthcare. You will design and implement robust features to enhance user experience for patients and clinicians. This role includes working from the London office 1 day per week with remote options available. </p ...

Lead Full Stack Engineer: AI‑Powered PHP/Laravel & React

hedgehog lab is looking for a Lead or Senior Full Stack Developer to build AI-powered products that transform procurement and data management. This role involves designing and shipping scalable applications using PHP, Laravel, React.js, and AWS. You will collaborate closely with cross-functional teams and inf ...

Staff Full Stack Engineer: Kotlin/React Cloud Native Lead

We are looking for a Staff Full-Stack Engineer to take technical ownership across backend and frontend development, shaping high-quality, scalable solutions and setting engineering standards for the team. This role combines hands-on delivery with technical leadership, mentoring, and close collaboration wit ...

Lead Full Stack Engineer: AI Powered PHP/Laravel & React

hedgehog lab is looking for a Lead or Senior Full Stack Developer to build innovative AI-powered products that transform how organizations handle procurement and data management. The role emphasizes ownership of significant technical challenges and collaboration with cross-functional teams. Ideal candi ...

Lead Full Stack Engineer (£95,000 £110,000 + Equity) at Searchland

Job Title Lead Full-Stack Engineer Salary £95,000 – £110,000 + Equity Company Description Searchland.co.uk is the UK’s leading B2B prop-tech company, transforming how businesses access and leverage property data. Their construction-focused arm, Buildscout, uses ...

Senior Java Full Stack Engineer: AI Driven Microservices Lead

Citigroup Inc. is seeking a Senior Java Full-Stack Engineer to design, develop, and implement high-quality application systems. This role will involve active participation in the entire software development lifecycle, working with both front-end and back-end components to deliver scalable solutions. Th ...

Senior Full Stack Engineer: ESG Data Platform (London Hybrid)

Motive Partners is seeking a Senior Full Stack Engineer to join our Engineering team in London. This high-impact role involves developing core tooling for managing ESG data, collaborating closely with Product and Design teams, and taking ownership of key initiatives. The ideal candidate will have over ...

Senior Full Stack Engineer Fintech Platform Architect & AI CFO

A fintech startup is seeking a Senior Full-Stack Engineer to own the technical architecture for a platform revolutionizing cross-border finance. You will lead the development of a high-performance React/TypeScript dashboard and build multi-currency wallets using cutting-edge technologies. The ideal candidate has ...

Lead Full Stack Engineer: AI Powered PHP/Laravel & React

hedgehog lab seeks a Lead or Senior Full Stack Developer to build innovative AI-powered products that transform procurement management. You will leverage your expertise in PHP, Laravel, and React.js to design scalable applications that handle complex data and work closely with product and design teams. <p ...

.Net Full Stack Engineer Consultant/Senior Consultant Digital Excellence

At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting‑edge solutions. Join us to drive transformation tailored to our client's challenges of today ...

Full Stack Engineer (1 Year Term) — Drive Food Sustainability

Foodsteps Limited is hiring a full stack software engineer for a 1-year fixed-term role in London. You will be part of a small team making a significant impact on food sustainability through our innovative platform. The role involves working on technical design, implementation, and support of applicati ...

Lead Full Stack Engineer – React/.NET on AWS (Greenfield)

djr is seeking a hands-on Lead Full Stack Engineer (.NET / React / AWS) for a 6-month contract in Manchester. You will play a critical role in building a greenfield cloud-native platform from the ground up, focusing on high-quality user experiences and robust backend integration. The position requires ...

Senior Full Stack Engineer AI SaaS, Shape Roadmap(Hybrid)

Oliver Bernard is looking for a hands-on engineer to join their seed-stage SaaS startup based in Greater London. The role involves approximately 80% coding, focusing on building, defining, and scaling AI-driven products. The compensation package includes up to £100k and strong equity options. You will ...

Full Stack Engineer (Forward Deployed) Digital Client Experience Marsh

Description: Full-Stack Engineer (Forward Deployed) — Digital Client Experience - Innovation & Applied AI - MarshMarsh is hiring a full-stack engineer to join our Innovation & Applied AI team within the DCX initiative, focused on building a competitive digital platform. The ...

.Net Full Stack Engineer Consultant/Senior Consultant Digital Excellence

At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting-edge solutions. Join us to drive transformation tailored to our client's challenges of today an ...

Senior Full Stack Engineer FTC in London SoCode Recruitment

Job Opportunity: Senior Full Stack Java Engineer Excited to be partnering with a leading financial services organisation seeking a Senior Full Stack Java Engineer to join their growing engineering team. Key Responsibilities: This is a hands‑on role for a seasoned developer w ...

Senior Full Stack Engineer Start Up Up to £95k

I've once again partnered with a top London based Tech Company, fresh of the back of their Seed funding round, who are looking to hire multiple Full-Stack Engineers, to their growing Engineering team. This is a Full-Stack role in a small Engineering team, where you will come in and take ownership acros ...

Senior Full Stack Engineer — Lead React/NextJS & AWS (Remote)

Cancer Research UK is seeking a Senior Software Engineer to join their team in Stratford. The role involves delivering software applications, mentoring junior engineers, and applying Agile principles. You will work flexibly, either in the office or remotely. The ideal candidate has experience with Type ...

Senior Full Stack AI Engineer Fintech, London (4d/wk)

La Fosse is recruiting a Senior Full-Stack Engineer for a new AI Innovation Team within a leading global fintech based in Central London. In this role, you will own full-stack features from frontends to backends, mentor engineers, and integrate diverse systems. Key requirements include 5+ years of engineering ex ...

Senior Full Stack Engineer — London (3x/wk Onsite) + Equity

Role: Senior, Staff & Principal EngineersSalary range: £90-150k (+equity)Location: Central London (x3 days per week onsite – Tue/Wed/Thurs)Tech stack includes: Typescript, React, MaterialUI, NodeJS, Postgres, AWS (Serverless)Curre ...

Senior Full Stack Engineer: AI SaaS, Remote, Stock Options

A leading tech start-up in the UK is seeking a Senior Full Stack Engineer to join their team and work on creating innovative AI-powered SaaS solutions. You will leverage cutting-edge technologies like React, Next.js, and Typescript to develop impactful products. The company offers competitive salaries with excel ...

Senior Full Stack AI Engineer for Enterprise IT Helpdesk

Sivara GmbH is seeking a Senior Full-Stack AI Engineer to build an AI-powered helpdesk product for enterprise users. This role requires strong full-stack engineering skills and commercial experience with languages like Python and Node.js. The position mandates working onsite in Sheffield three days per week.< ...

Senior Full Stack Engineer for Fusion Platform Hybrid UK

TP ICAP Group Services Ltd is seeking a Senior Engineer to join a new team focused on building the Fusion Platform with Amazon Web Services (AWS). This role involves technical ownership of software development, mentoring junior team members, and driving engineering improvements. The ideal candidate wil ...

Senior Full Stack .NET Engineer AI Driven Cloud Security

Eligo Recruitment is seeking an experienced senior Full Stack software engineer to develop a Cloud-based Security application for Microsoft technology. This role involves using .Net C# on the backend and Node JS on the frontend, ideally suited for someone with a strong IT Security application background. ...

Full Stack Engineer: Build Scalable Cloud Apps with React

Overview Support CI/CD Cloud GCP Java Mobile NodeJS React React Native Spring Web UX UI Design DevOps JavaScript TypeScript Fullstack Technologie ...

Senior Software Engineer (Python)

Overview Join to apply for the Senior Software Engineer (Python) role at TieTalent . Bristol - fully flexible hybrid / some client visits. Salary up to £65,000 + benefits + discretionary bonus. Responsibilities Support Agile teams that work with a broad sele ...

Software Engineer (AI+Fullstack)

Software Engineer (AI & Full Stack) - Senior Consultant Salary: £60,000 - £70,000 pa + £4,000 Bonus plus benefits, perks and healthcare options Base locations: London, Manchester, Newcastle or Glasgow Job Type: Permanent | Hybrid (2 days per week) | Occasional travel to cl ...

Software Engineer (AI+Fullstack)

Software Engineer (AI & Full Stack) - Senior Consultant Salary: £60,000 - £70,000 pa + £4,000 Bonus plus benefits, perks and healthcare options Base locations: London, Manchester, Newcastle or Glasgow Job Type: Permanent | Hybrid (2 days per week) | O ...

Staff Software Engineer Java Backend in Belfast Visa

Staff Software Engineer - Java Backend Belfast, UnitedKingdom Posted 9 months ago Tech Stack Software Engineer Backend Java JavaScript API Development Banking SME Knowledge and Expertise Required SME ...

QA Engineer Automation in Belfast Hayward Hawk Limited

QA Engineer - Automation Belfast, UnitedKingdom Posted 12 months ago This is a job posted by our partner Jooble Tech stack Selenium CI/CD Agile Automation Automated Testing QA Engineer TypeScript < ...

Software Engineer in London Electric Twin Ltd

Software Engineer London, United Kingdom Posted 9 months ago Tech stack PostgreSQL SaaS TypeScript Simulations Software Engineer Databases Google Cloud Platform JavaScript Popula ...

AI Engineer

We’re looking for an AI Engineer who brings fresh ideas, has a curious nature and is passionate about working in an Engineering environment that focuses on building products to achieve the company's strategic goals. As a Software Engineer within Checkout.com’s AI Centre of Excellence, you will rapid ...

Principal Software Engineer in London Collinson

Principal Software Engineer London, United Kingdom Posted 12 months ago Responsibilities By delving into engineering processes, you'll have the ample opportunity to explore them. Qualifications Tech stack - We employ TypeScript (Node.js & React), AWS (E ...

Senior Software Engineer

Role Full Stack Developer Salary £60,000 – £70,000 + company bonus Location Hybrid – Nottinghamshire (once a week onsite) Employment Type Permanent About the job If you are a Senior Full Stack Engineer with a strong C#, .Net backgroun ...

Senior Engineer II in Burgess Hill American Express

Senior Engineer II Burgess Hill, United Kingdom American Express Tech stack UI React Data Structures JavaScript Node.js Job Description Able to understand and use complex data structures and associated components. Extensive development kn ...

Senior AI Software Engineer

Senior AI Software EngineerEmployment Type: ContractDuration: 12 MonthsLocation: Berkshire, England (1 day per month onsite)Umbrella Rate: £-£/dayOpportunity OverviewWe are working with a large, technology-driven organisation ...

Frontend UI Engineer (React/Angular) – Edinburgh

Software Engineer, UI Developer Location: Edinburgh, United Kingdom Role: Full time, competitive compensation. This position requires a strong background in UI development with expertise in modern JavaScript frameworks such as React.js or Angular, a solid understanding of TypeScri ...

Software Engineer, UI Developer in Edinburgh NatWest Group

Software Engineer, UI Developer Location: Edinburgh, United Kingdom Role: Full time, competitive compensation. This position requires a strong background in UI development with expertise in modern JavaScript frameworks such as React.js or Angular, a solid understanding of TypeScri ...

Support Engineer Fintech50 in London Quant Capital

Support Engineer - Fintech50 London, United Kingdom Posted 10 months ago Tech Stack Angular Web Frontend Development ASP.NET HTML5 JavaScript ASP.NET MVC CSS Responsibilities Implemen ...

Staff Engineer End to End Systems Architect

Who You Are Expert-level proficiency in multiple programming languages (JavaScript, Python, Go, Rust). Deep understanding of system design, distributed systems, and cloud architecture. Mastery of modern frontend... What Are The Responsibilities? Architect and implement ...

Staff Engineer in Belfast Nisos

Who You Are Expert-level proficiency in multiple programming languages (JavaScript, Python, Go, Rust). Deep understanding of system design, distributed systems, and cloud architecture. Mastery of modern frontend... What Are The Responsibilities? Architect and implement ...

Lead QA Engineer Part Time in Nottingham ENSEK

Lead QA Engineer - Part Time Location: Nottingham, United Kingdom Posted 10 months ago Tech Stack C QA Engineer JavaScript Cloud Company ENSEK is a leading provider of a flexible SaaS platform that revolutioni ...

Senior Developer (Typescript and Python)

MCS Group delighted to be working with an innovative and rapidly growing technology organisation as they look to appoint a Senior Software Developer to join their expanding engineering team in Belfast. This is an excellent opportunity for an experienced engineer who enjoys working across complex sys ...

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    Full Stack Engineer Python Javascript Jobs in United Kingdom Job Search Guide, Trends and Insights