19,259+ Java Developer Java React Springboot Jobs in London, UK — Local Employers Hiring June 2026

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Senior Frontend Engineer – AI Native UI High Impact Equity

Jack & Jill in London seeks a Senior Frontend Engineer to join an elite team focused on developing an AI-native data intelligence platform. You will design and deploy scalable frontend systems while collaborating closely with the design team to create high-quality user interfaces. The ideal candidate has experie ...

Senior Full Stack Engineer: Ground Floor AI Platform Lead

RGH-Global Ltd is seeking a Senior Full-Stack Software Engineer for a pivotal greenfield project in London. The position involves building a customer-facing platform, backend automation, and architecting technical foundations from the ground up. Ideal candidates will have over 5 years of experience, strong skill ...

Design Engineer: Real Time AI Web Interfaces + Equity

Jack & Jill is seeking a Design Engineer to redefine web experiences by building intelligent, real-time interfaces. You will work closely with the founders to bridge design and production, creating fluid AI-driven experiences. The ideal candidate is an expert in TypeScript, React, and Tailwind, and has a passion ...

Frontend Engineer (Mid) — AI‑Assisted, Hybrid Role

Motorway is seeking a Mid-level Frontend Engineer to join our product team in Greater London. You will work with TypeScript, React, and AI tools to deliver high-quality web applications. The role involves end-to-end feature development, collaboration with cross-functional teams, and a focus on performance and ac ...

Senior Software Engineer II — Drive Scalable, High Impact Systems

Menlo Ventures is seeking a Senior Software Engineer II in Greater London to lead complex technical projects and simplify systems within our technology stack. With a focus on collaboration and mentorship, this role requires 8+ years of software engineering experience, particularly in Python, Django, React, and o ...

Software Engineer – Build Global Tax Tech with Impact

Caribou is seeking an experienced Software Engineer in the United Kingdom to innovate and enhance its tax platform. In this role, you'll design and maintain customer-facing applications while collaborating with the tax team to drive efficiency and feature development. Candidates should have 2+ years of frontend ...

AI First Full Stack Product Engineer

54 is seeking a full stack product engineer to join their team in Greater London. In this role, you will help build and maintain a modular fan engagement platform for sport, focusing on applications for game organization, payments, and event activations. Your responsibilities will include building and launching ...

Senior Frontend Engineer – SEO Driven Web Experience

Getecube is looking for a Senior Frontend Engineer in Greater London to build innovative web experiences that help customers interact with Wise. You will play a key role in shaping and developing the website using React and TypeScript, focusing on scalable, accessible solutions. This position involves collaborat ...

Senior Frontend Engineer AI SaaS, Remote/Hybrid, Equity

Burns Sheehan is seeking a Senior Product Engineer for a remote-first role with a hybrid option in London. The ideal candidate will contribute significantly to building and scaling the frontend of an AI-driven product using React and Typescript. Responsibilities include designing scalable architectures, leading ...

Senior Product Engineer — End to End AI Platform (Hybrid)

Dragonfly, a burgeoning start-up in Greater London, is on the lookout for a talented individual to own feature development and work across a diverse tech stack, including TypeScript, React, and Google Cloud Platform. This role offers a hybrid work setup with competitive salary and equity, alongside 30 days of an ...

Senior Frontend Product Engineer Real Time UIs & Equity

Attio is seeking a Senior Product Engineer in Greater London to build and enhance innovative frontend systems. This role requires strong JavaScript and TypeScript skills along with expertise in React. Responsibilities include designing product features and leading projects to address customer needs. Attractive b ...

Senior Software Engineer in London Arrive

Responsibilities Maintain and expand our serverless card payment infrastructure built with TypeScript, Node.js, and AWS (Lambda, API Gateway, DynamoDB). Ensure continued PCI DSS compliance. Work with others to fix bugs, implement minimal new features. Requirements Strong hands-on e ...

Forward Deployed Engineering Manager, AI & Data

Accenture UK & Ireland is looking for a Managing Engineer - Forward Deployed in London. You will manage client relationships and lead a team to deliver seamless data solutions, translating technical concepts into stakeholder language. The role requires proficiency in Python, SQL, TypeScript, and REACT, alongside ...

Frontend Product Engineer Full Stack (Equity Options)

Treefera is seeking a Frontend Product Engineer to enhance delivery capacity in Environmental Intelligence. You will join a cross-functional team, focusing on building software across user interfaces and APIs. The ideal candidate is proficient in TypeScript, React, and NestJS, capable of turning complex ideas in ...

Senior Fullstack Engineer Enrichment Shop Platform

Wayve in London is seeking a Fullstack Engineer to build and own a new internal web application for computer vision models. This role involves close collaboration with internal users to shape workflows and deliver an MVP rapidly. The successful candidate will need strong JavaScript and TypeScript skill ...

Principal Frontend Engineer AI‑Driven, Scalable UI

Initi8 Recruitment is seeking a Principal Frontend Engineer for a growing startup in London. This hands-on leadership role combines architecture and active development, focusing on building scalable systems. Ideal candidates will have extensive experience with technologies like Vue.js, Typescript, APIs, Node.js, ...

Strategic Software Engineering Leader

Webuild Ai is seeking a Senior Software Architect to lead the design and delivery of enterprise-grade software solutions. The role requires 8+ years of experience and deep expertise in Python, TypeScript/React, and cloud-native architectures. You will mentor engineers, define software architecture, and ensure be ...

Hybrid Ruby Fullstack Engineer (Mid Level) Equity & Perks

Tech Ladies® is seeking a Mid-Level Ruby Fullstack Engineer in London. You will develop and maintain the core web application using Ruby, Rails, React, and TypeScript. We value autonomy and initiative in building high-quality web applications. The successful candidate will have 2+ years of experience i ...

IAM Software Engineer – AI‑Driven Enterprise Platform

Eames Consulting is looking for a candidate in London for a hybrid role focused on Identity and Access Management. You will work on modern applications and integrate AI to enhance engineering processes. The ideal candidate will possess strong C#, .NET, and React skills, along with hands-on IAM experience. This r ...

Senior Platform Frontend Engineer Medical Imaging Hybrid

Motilent Ltd seeks a Senior Software Engineer for their Platform Frontend Team, responsible for key components in an advanced medical imaging platform. The role requires hands-on development and technical leadership, including mentoring and architectural direction. Candidates should have a strong backg ...

Senior Frontend Engineer Build High Impact Web at Scale

Ledger is looking for a Senior Frontend Engineer to join their E-commerce Engineering team in Greater London. In this role, you will shape and deliver the web experience for millions of customers. Responsibilities include leading projects, driving technical excellence, and collaborating with cross-functional tea ...

Senior AI & Decision Intelligence Engineer

A leading AI technology firm in the United Kingdom is seeking a skilled full-stack engineer to contribute to their Decision Intelligence platform. The successful candidate will tackle complex technical challenges, build innovative AI products, and mentor junior engineers. Experience with Python, TypeScript, and ...

Senior UI Engineer Design Systems & Frontend Architect

A leading restaurant chain is seeking a Senior Software Engineer specializing in UI to enhance their design system. The ideal candidate will be proficient in React and TypeScript, skilled in developing maintainable UI components, and passionate about mentoring. You'll work closely with designers and engineers to ...

Senior Product Engineer Build Impactful Fintech (UK)

A fintech startup in London is seeking engineers passionate about building innovative products that enhance financial health. You will join a cross-functional team to develop features across a diverse tech stack, primarily using Ruby and React Native. The role emphasizes collaboration, learning, and mentoring. Y ...

Senior Full Stack Engineer AI Powered Wellness Platform

A healthtech SaaS startup in London is seeking a Full Stack Software Engineer to help shape a B2B2C platform focused on stress reduction and resilience. The role requires extensive experience in developing solutions using React, Python, and Django. The ideal candidate should have a strong interest in wellbeing t ...

Senior Full Stack Tech Lead — Remote, High Impact

A technology startup is seeking a Foundational Engineering Leader to own their technology stack. The role involves driving the technical roadmap, managing a high-performing team, and being a cornerstone of a mission-driven company shaping technology to better communities. A minimum of 5 years in engineering lead ...

Remote Frontend Engineer — Data Visualization & Dashboards

A forward-thinking company is seeking a talented Frontend Engineer to join their team in a remote capacity, requiring occasional trips to London. The successful candidate will design and develop web applications and ensure a cohesive UI/UX. Essential skills include experience with JavaScript data visualisation t ...

Frontend Engineer – Build Fast, Accessible UIs in London

A leading employee app provider in London is seeking a Front End Engineer to enhance their platform's user interface. You will work collaboratively within a cross-functional team to create fast and accessible web applications using TypeScript, HTML, and React. Ideal candidates will have a strong grasp of fronten ...

Lead Frontend Engineer — Scalable, High Performance UIs

A leading travel technology firm seeks a Lead Software Engineer to drive the evolution of front-end systems and lead projects that serve millions of travelers. The ideal candidate will have over 12 years of software development experience, with proven expertise in client-side technologies such as JavaScript, Typ ...

Senior Full Stack Engineer — AI Video Studio (Hybrid UK)

A cutting-edge technology company based in London is seeking a Senior Full Stack Software Engineer. This role involves collaborating with cross-functional teams to design and implement features that enhance video content creation using AI tools. The ideal candidate will have 3-5 years of experience, proficiency ...

Senior Frontend Engineer Remote, High Impact UI Builder

A leading tech startup in Greater London is seeking a Senior Frontend Engineer to build and improve web and mobile applications. In this hands-on role, you'll enhance features and focus on performance while collaborating with a skilled team. The ideal candidate will have proven experience with React Native, be a ...

Full Stack AI Engineer — Build End to End PE Insights

A leading AI firm in Greater London is looking for a full stack engineer to contribute to all layers of the application. The role involves shipping features that users care about and participating in product strategy sessions. Ideal candidates will have experience with Python, FastAPI, and React, and a passion f ...

Full Stack AI Engineer — Build AI Auto Workflows (Equity)

A creative automation startup is looking for a Full Stack AI Engineer to develop features that automate production for global brands. The candidate will work with Next.js and Node.js to create intelligent workflows on AWS infrastructure. Ideal applicants should have 3-5 years of full-stack experience, particular ...

Staff Software Engineer Product Focused & Scale Driven

HackerX is seeking a product-minded software engineer with over 8 years of experience to join our engineering team in Greater London. You will drive product impact, work with a modern tech stack including Typescript, AWS, and React, and take ownership of projects from end-to-end. This role offers a unique opport ...

Lead AI Software Engineer Cloud Native & Enterprise

A leading AI technology firm in the UK seeks a Software Engineer to lead the design and delivery of AI-powered applications. The role requires extensive experience with React, TypeScript, and Python, alongside cloud-native development. You will mentor engineers, collaborate closely with cross-functional teams, a ...

Senior Software Engineer, Content Agent Full Stack & AI

A pioneering content technology firm in Greater London is looking for a Senior Engineer for their Content Agent. In this role, you'll engage in full-stack product work using TypeScript and React, contributing to the development of AI-powered systems that handle structured content. You’ll collaborate closely with ...

Senior Software Engineer, Content Agent — AI Powered Ops

A tech company specializing in content operations seeks a Senior Engineer for their Content Agent product. This role involves full-stack product work, primarily using TypeScript and React to design system interfaces, develop tools, and run experiments. The ideal candidate has experience with LLM-based systems an ...

VP, GenAI Data Platforms & Product Engineering

A global financial services company is looking for a full-stack engineer to join their team in London. This unique opportunity involves building foundational systems for an AI assistant that will support employees globally. You will design and build evaluation frameworks and data pipelines, ensuring safety and q ...

AI Engineer: Ship Production Grade FinTech AI

Light is looking for a mid-level AI Engineer to join their team in Greater London. You will work on their Smart Financial Platform, taking customer challenges from idea to production. Ideal candidates will have experience building production software with a focus on LLMs and a full-stack mindset, using Kotlin an ...

Technical Lead AI Driven Real Estate Software

Orbital is seeking a talented engineer to lead the development of innovative real estate AI solutions. You'll manage product features end-to-end, guide small teams, and utilize technologies like TypeScript, React, PostgreSQL, and Python. This role provides the opportunity to directly influence the evolution of t ...

Remote AI Agent Tech Lead Contract

YO IT Consulting is looking for a Technical Lead to drive innovation on a cutting-edge AI agent project in a remote setting. In this role, you will guide design and development, leveraging your coding expertise in languages like React, Python, Node.js, and more. This position offers an opportunity to collaborate ...

Head of Quality Assurance (QA)

Join to apply for the Head of Quality Assurance (QA) role at Fnality Join to apply for the Head of Quality Assurance (QA) role at Fnality Get AI-powered advice on this job and more exclusive features. Direct message the job poster from Fnality <h ...

Senior Full Stack Engineer

About us:Make a difference and advance your career by helping deliver some of the UK’s most important #tech4good projects, making the world a smarter, safer, greener, and healthier place.You’ll join a talented team of dynamic and driven professional problem solvers; creative thi ...

Senior Full Stack Engineer

About us:Make a difference and advance your career by helping deliver some of the UK’s most important #tech4good projects, making the world a smarter, safer, greener, and healthier place.You’ll join a talented team of dynamic and driven professional problem solvers; creative thi ...

Senior Software Engineer, Content Agent — AI Powered Ops

A tech company specializing in content operations seeks a Senior Engineer for their Content Agent product. This role involves full-stack product work, primarily using TypeScript and React to design system interfaces, develop tools, and run experiments. The ideal candidate has experience with LLM-based systems an ...

Senior Software Engineer II — Drive Scalable, High Impact Systems

Menlo Ventures is seeking a Senior Software Engineer II in Greater London to lead complex technical projects and simplify systems within our technology stack. With a focus on collaboration and mentorship, this role requires 8+ years of software engineering experience, particularly in Python, Django, React, and o ...

Senior Software Engineer, Content Agent Full Stack & AI

A pioneering content technology firm in Greater London is looking for a Senior Engineer for their Content Agent. In this role, you'll engage in full-stack product work using TypeScript and React, contributing to the development of AI-powered systems that handle structured content. You’ll collaborate closely with ...

Remote Technical Architect for Data Platform & AI

Global Enterprise Partners is seeking a Technical Architect to lead the evolution of a pricing and promotions optimization platform for a leading CPG/FMCG brand. This role involves owning the complete architecture of a data-driven application, designing scalable solutions using GCP and modern technologies, and e ...

Senior Software Engineer in London Arrive

ResponsibilitiesMaintain and expand our serverless card payment infrastructure built with TypeScript, Node.js, and AWS (Lambda, API Gateway, DynamoDB). Ensure continued PCI DSS compliance. Work with others to fix bugs, implement minimal new features.RequirementsStrong hands-on ex ...

Senior AI Full Stack Engineer | Equity | Hybrid London

Burns Sheehan is looking for a Senior Full Stack Engineer to join their team in London, offering a salary range of £90,000-110,000. This hybrid role requires expertise in Python, React, and TypeScript, focusing on architecture and delivery.Join a profitable HealthTech company with a mission to revoluti ...

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