Junior Java Full Stack Developer Jobs in UK

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Senior Full Stack Engineer – Aviation Systems (Python/.NET)

NineTech is hiring a Senior Full Stack Developer in West Drayton, offering a salary of £70,000 – £80,000. You will join a collaborative team focused on building advanced software solutions for aviation. Key responsibilities include designing scalable applications, developing backend APIs, and contributing to sys ...

Senior Full Stack Engineer (Remote) Scalable APIs & UI

A leading recruitment agency is seeking a Senior Full Stack Engineer for a 12-month remote contract. The ideal candidate has at least 4 years of experience in Python and Flask, along with a strong grasp of SQL databases. Responsibilities include architecting backend services and building responsive front-end int ...

Hands on Full Stack Engineering Lead (Hybrid, Equity)

Trust In SODA is looking for a Full-Stack Engineering Manager who will lead a small team in a seed-stage climate tech company. This role involves owning a core domain end-to-end, engaging directly with users, and balancing code contributions with leadership responsibilities. Candidates should have over four year ...

Senior Full Stack Engineer – Trading Platform (React/TS)

A leading technology company is seeking a Senior Full-Stack Engineer to enhance their trading platform in London. This role offers the chance to take ownership of features and work in a collaborative team environment. Candidates should have extensive experience in TypeScript, Node.js, and React, with strong skil ...

Founding Full Stack Engineer — AI Consumer Platform (Stealth)

A cutting-edge technology startup in London is seeking a Founding Full Stack Engineer to lead the development of an AI-powered platform aimed at transforming consumer decisions. The role requires a strong background in both frontend and backend systems with a focus on product development and learning. Competitiv ...

Senior Design Engineer Full Stack & AI Web Features

It's Nice That in Greater London seeks a Senior Design Engineer to enhance their digital offerings. The ideal candidate will integrate technological solutions with creative problem-solving, managing end-to-end feature development. Responsibilities include designing innovative digital features, managing projects ...

Senior Full Stack Engineer — Build Scalable AI Infra

A leading AI infrastructure provider in Greater London is seeking an experienced engineer to enhance platform performance and reliability. The role offers high autonomy and the chance to work with a talented team on impactful projects. Candidates should have skills in Python and Typescript, among others. The com ...

Senior Full Stack Engineer — Trading Platform (React/TS)

NPAworld is hiring a Senior Full-Stack Engineer for their Trading Platform in Waterloo, London. The role involves designing, building, and maintaining features in a high-performance trading system using TypeScript, Node.js, and React. Candidates should have over 8 years of development experience and at least 3 y ...

Senior Full Stack Engineer – Hybrid, Mission Critical Platform

Kura is seeking a Senior Software Engineer for our innovative software lab in Belfast, Northern Ireland. This full-stack role involves designing and delivering scalable applications while improving CI/CD and developer workflows. We're looking for candidates with strong experience in Angular and Node.js/NestJS, a ...

Senior Full Stack Engineer Hybrid, Impact at Scale

A technology solutions provider is seeking a Senior Software Engineer in Manchester to develop proprietary telecommunication solutions. This hybrid role requires strong expertise in TypeScript, along with experience in mentoring team members. The position offers a supportive environment focused on work-life bala ...

Senior Full Stack Engineer: Ownership, AI, Stock Options

Be-IT is seeking a Senior Engineer in Edinburgh who wants to have a meaningful impact on product development. In this role, you'll work with modern technologies like React and TypeScript on the frontend and have the flexibility to work with various backend technologies such as Node.js, Python, Java, Go, or C#. T ...

Senior Full Stack Engineer – Cloud & Incident Response Lead

A technology services company in Leeds is seeking a Senior Full Stack Engineer to enhance applications and support business-critical systems. The ideal candidate will have strong cloud knowledge (Azure or AWS), experience in BAU operations, and ability to mentor others. They will conduct root cause analysis for ...

Senior AI Driven Full Stack Engineer – Compliance & Fraud

A cutting-edge AI startup in London is looking for a Senior Full-Stack Product Engineer to develop and enhance an AI-powered anti-financial crime platform. The ideal candidate will have over 4 years of full-stack experience with proficiency in TypeScript, React, and Node.js. Responsibilities include building sca ...

Senior Full Stack Software Engineer (C#/.NET, React)

Gearset is the leading DevOps platform for Salesforce - our users can build and manage many aspects of their Salesforce development from within Gearset, from complex CI/CD pipelines to disaster recovery. The Gearset platform is a standalone tool that sits outside of the Salesforce platform, integra ...

Senior Full Stack Engineer — AI Driven Home Healthcare

Heim is seeking a Senior Full-Stack Engineer to build AI-powered systems that improve home-based healthcare delivery. The role requires over 6 years of experience; candidates must demonstrate genuine full-stack capabilities and have a proven track record in delivering production software. Responsibilities includ ...

Forward Deployed AI Full Stack Engineer (Public Sector)

A forward-thinking technology firm in the United Kingdom is seeking a Full Stack Software Engineer to develop AI applications for the public sector. You will partner with clients, developing solutions and managing infrastructure in cloud environments. Ideal candidates will have a Bachelor's degree and at least 5 ...

Senior Full Stack Engineer for Pre Commerce Platform

A pioneering e-commerce platform is seeking a Senior Full Stack Engineer to develop impactful features for their pre-commerce platform. You will work across frontend and backend systems, collaborating closely with a small engineering team. The role requires 5+ years of experience in both frontend and backend dev ...

Senior Full Stack Engineer — AI SaaS (Hybrid, Equity)

Oliver Bernard is seeking a hands-on engineer to join a seed-stage SaaS startup in the Greater London area. The role primarily involves coding (~80%) as the team works on AI systems integration while shaping product direction with the CEO. The position offers a competitive salary of up to £100k along with a stro ...

Senior Full Stack Engineer, AI Driven Enterprise Platform

W3 Global Sourcing is looking for a Full-Stack Engineer to join their team in London. This role involves the design, development, and scaling of features for a next-generation AI platform used in high-stakes industries like investment banking. The ideal candidate will have over 5 years of experience, strong skil ...

Lead Frontend Lean Full Stack Engineer (React/Node)

A leading tech company in Greater London is seeking a Lead Full‑Stack Engineer (Frontend-leaning) to deliver high-quality full-stack solutions. The role demands strong JavaScript/TypeScript skills, along with proven expertise in React, Next.js, and Node.js. Applicants should be comfortable guiding clients and ha ...

Senior Full Stack Engineer: Build Secure, Scalable Identity

A leading technology company based in the UK is seeking a skilled software engineer to join their team. The successful candidate will work on building and maintaining scalable systems using TypeScript and frameworks like React, as well as backend technologies such as Kotlin, Python, and Ruby. Responsibilities in ...

Senior Full Stack Engineer, TechOps — Self Service & Scale

A leading energy technology firm in the UK is seeking an experienced Full Stack Software Engineer to enhance their TechOps Engineering team. The role involves problem-solving for device management and developing applications to improve user experiences. Ideal candidates will have significant experience with Reac ...

Senior Full Stack Engineer — AI Powered Video Editor

A leading video editing platform seeks a skilled developer to enhance their core video editing functionalities. You will be responsible for developing intuitive features, optimizing performance, and integrating AI capabilities. Ideal candidates should have strong TypeScript skills, experience with modern web tec ...

Senior Full Stack Architect & Tech Lead — Scale & Strategy

Calyptus is looking for a Senior Full Stack Engineer in the UK to lead the technical architecture of their platform. Responsibilities include owning the full stack from React Native to Django API and managing the engineering team. Applicants should have 7+ years of experience, strong skills in React Native and P ...

Lead Principal Full Stack Engineer Cloud & Incident Leader

A leading technology consultancy in Leeds is seeking an experienced Principal Full Stack Engineer to lead L2/L3 support teams and ensure high-quality service delivery. The ideal candidate should possess knowledge in Java, Python, Node.js, or C#, alongside hands-on cloud architecture experience with AWS or Azure. ...

Senior Full Stack Engineer for Skincare Platform (Remote)

Mitra Bio Ltd is hiring a Senior Full Stack Engineer in Greater London. The successful candidate will enhance the customer experience through exceptional frontend development and product-focused UI/UX. With 5+ years of relevant experience, the role includes building high-quality web applications and driving fron ...

Senior Full Stack Engineer AI Driven Production Tools

A leading technology consulting firm in Greater London is looking for a Senior Full-Stack Engineer to drive the development of AI-enabled systems in Production Management. Responsibilities include designing scalable applications and optimizing mission-critical systems, while fostering a culture of Agile practice ...

Senior Full Stack Engineer: Build Real World Impact

A leading rental technology firm in the UK is seeking a Senior Full-stack Engineer to design and deliver innovative software solutions that reshape the rental industry. This role involves collaborating across teams to understand user needs, mentoring junior developers, and influencing company-wide decisions. Ide ...

Senior Backend‑Focused Full‑Stack Engineer — Scale Impact

A leading educational technology company in Greater London is searching for a Full-Stack Developer to engage in backend and frontend development using cutting-edge technologies like Python and Django. The ideal candidate will thrive in a collaborative environment and drive innovation through data-driven decision ...

Senior Full Stack Engineer for AI Procurement Platform

A fast-growing tech startup in the UK is looking for a full-stack software engineer to join their team. The successful candidate will support the growth of the product and company, contributing to crucial product decisions and technical direction. Ideal candidates should have extensive experience in software eng ...

Senior Full Stack Engineer Hybrid London, Impact & Growth

A leading technology-driven food delivery company is seeking a Senior Software Engineer to work in a hybrid environment. You will contribute to multiple teams and lead technical execution while collaborating with other engineering teams. The ideal candidate should have experience with web-based applications and ...

Senior Full Stack Engineer 3D Visualization & AI Infra

A leading AI infrastructure firm in London is seeking a Senior Full-Stack Engineer to lead the development of sophisticated visualization tools for multimodal datasets. This role involves designing performance-critical UI components using TypeScript and React, and requires deep expertise in graphics rendering. I ...

Senior Full Stack Software Engineer (.Net / React) (Remote)

Our client is leveraging AI-powered technology to break down the barriers to fair and profitable trade in emerging markets. Our clients Intelligent Open Commerce Platform connects FMCG Brands, Distributors, and Local Merchants on a single, equitable marketplace, empowering them with real-world insights ...

Senior Lead Full Stack Engineer Cloud & AI UI

A leading global financial services firm in the United Kingdom is looking for a Senior Lead Software Engineer. You will join an agile team dedicated to building top-notch technology products that enhance business decisions. The role requires significant expertise in full stack development, especially with React ...

Senior Full Stack Software Engineer (SaaS Platform) Pathogen

Senior Full Stack Software Engineer (SaaS Platform) – Pathogen At the Ellison Institute of Technology (EIT), we are on a mission to translate scientific discovery into real world impact. We bring together visionary scientists, technologists, policy makers, and entrepreneurs to tackle humanity's g ...

MyDataValue: Founding Full Stack Senior Engineer (UK ONLY)

Must be UK based We are an AI-driven Hospitality Tech platform helping vacation rental owners automate their revenue on Booking.com. Unlike most “early-stage” startups, we are already at £100k ARR, growing month-on-month and have investment from angels. We have a product custome ...

Principal Full Stack Architect & Tech Lead (Hybrid, AWS)

RGIT Australia is seeking a Principal Full Stack Engineer & Architecture Lead based in Greater London. This full-time, permanent position offers a hybrid work schedule, allowing 2-3 days in the Canary Wharf office. The role encompasses architecture leadership, technical design, and hands-on coding with technolog ...

Senior Full Stack Engineer (React/TypeScript) Flexible/Remote

NPAworldwide is seeking a Senior Full Stack Engineer in Greater London to design, build, and maintain high-performance applications. The ideal candidate will have extensive experience with TypeScript, Node.js, and React, and a passion for innovative technology. Responsibilities include improving application perf ...

Senior Full Stack Engineer for AI Driven Solutions

hackajob is collaborating with Baringa Partners to find an experienced Senior Full Stack Software Engineer in Greater London. You will build and maintain innovative AI and Machine Learning solutions. The ideal candidate will have 3-5 years of experience, expertise in JavaScript and Python, and strong full-stack ...

Senior Full Stack Engineer — Remote AI Web Platform

Fanatics is seeking a Software Engineer III (Full Stack) to lead the development of their web app, focusing on creating scalable, high-quality user experiences. Ideal candidates should have over 4 years of experience in modern JavaScript/TypeScript, particularly with React and Next.js. The role offers flexibilit ...

Senior Full Stack Engineer Remote UK, High Impact

OnBuy in Greater London is seeking a Senior Full Stack Engineer to build and scale their core commerce platform. The role entails end-to-end engineering ownership responsible for developing high-quality solutions that bolster customer experience and seller performance. Candidates should have strong full-stack ex ...

Lead AI Driven Full Stack Engineer (React/TS)

Deepstreamtech is seeking a Senior Full-Stack Engineer in Greater London to lead the development of their AI-powered platform. This role requires extensive experience in building full-stack applications using TypeScript and Node.js, with a strong backend focus and solid frontend skills in React. The position inv ...

Senior Full Stack Engineer – Remote Ready Vinyl Tech

A leading technology company in Greater London is looking for a Senior Full Stack Engineer to transform the music industry. In this role, you will leverage your PHP and JavaScript/TypeScript expertise to develop APIs and backend services. Collaborating with cross-functional teams, you will create reliable and sc ...

Senior Full Stack Engineer: Build Impactful Rental Tech

OpenRent in Greater London is seeking a Senior Full-stack Engineer to design and deliver innovative software solutions that improve the rental experience for millions. The role involves collaborating with different teams, mentoring junior developers, and addressing real-world challenges in the rental market. Wit ...

Senior Full Stack Engineer .NET/C#, Azure & ElasticSearch

A leading legal AI company in the UK is seeking a Senior Full-Stack Software Engineer to develop features for an innovative management platform. The role requires expertise in C#, .NET, and SQL, with a focus on collaborating and solving complex problems. Candidates should possess at least 5 years of software eng ...

Senior Full Stack Engineer — Product & Data (London, Hybrid)

A technology company located in London seeks a Full-stack or Front-end Software Engineer dedicated to enhancing customer experience through quality code and teamwork. The ideal candidate has a minimum of 3 years in software engineering and a passion for data-driven solutions. Responsibilities include collaborati ...

Senior Full Stack Engineer — Build Scalable Work Platforms

A leading legal technology company in Alderley Edge is looking for a Senior Full-Stack Software Engineer. This role involves developing features using C#, .NET, and SQL, among other technologies. The ideal candidate will have over 5 years of experience and a strong background in both software engineering and dat ...

Senior Frontend Engineer / Full Stack Product Engineer Energy

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 interact with directly, as they continue to scale their produc ...

Lead Full Stack Engineer — Architect & Mentor Teams (Hybrid)

A renewable energy startup in the UK seeks a Lead Full Stack Engineer to drive architectural and technical strategy. The role requires hands-on coding, mentoring junior engineers, and leading technical discussions. Ideal candidates should have a strong background in modern JavaScript and backend development. The ...

Senior Full Stack Software Engineer (Node / Typescript / React)

Skin + Me is a technology-driven start-up on a mission to revolutionise personalised skincare. We’ve delivered millions of treatments across our multi-brand ecosystem (Skin + Me, Hair + Me, Renew + Me), powered by a proprietary stack that runs everything from our e‑commerce engine to our in‑house manufactu ...

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    Junior Java Full Stack Developer Jobs in United Kingdom Job Search Guide, Trends and Insights