Java Developer Java React Springboot Jobs in London, UK

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

AI Assisted Programming Teaching Expert (Front End, B2B) Part time

At we're building a hands-on online course for experienced mobile developers on the practical use of Cursor and other AI coding tools in professional mobile development workflows.We' ...

AI Assisted Programming Teaching Expert (Front End, B2B) Part time

At we're building a hands-on online course for experienced mobile developers on the practical use of Cursor and other AI coding tools in professional mobile development workflows.We' ...

Staff Software Engineer

At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a year ...

Senior Python Developer

The Role You will play a key role in designing and delivering high-performance technology solutions that directly support Front Office Sales teams. Working closely with Trading, Structuring, and Middle Office stakeholders, you will help build scalable systems that support complex Equity Derivativ ...

Linux Engineer Algo Trading £150K+

Our client is one of the world’s leading systematic trading firms – A company at the cutting edge of finance, technology and quantitative analytics. In London they’re growing their Infrastructure and HPC team and are looking for an experienced, senior Linux engineer to join them. You’ll h ...

Principal Software Engineer

Join a global technology organisation whose products are trusted by leading brands and deliver real-world impact across sustainability, education and safety. This is a pivotal role, reporting to the Head of Engineering helping lead tech direction and delivery for some genuinely innovative products. <h ...

Quantitative Software Developer Intern

Job DescriptionWe are seeking a small number of highly talented interns to assist in the development, optimization, and monitoring of our production trading platform and research infrastructure. Interns will work on small, highly collaborative teams. Desirable Candidates ...

Quantitative Software Developer Intern

Job DescriptionWe are seeking a small number of highly talented interns to assist in the development, optimization, and monitoring of our production trading platform and research infrastructure. Interns will work on small, highly collaborative teams. Desirable Candidates ...

Front End Developer

Join Nordcloud and be part of the European cloud revolution. We supercharge our customers to innovate in hyperscaler cloud, enabling seamless migration, advanced security, and data-driven success. Front End Developer – UK We are looking for a Front End Developer to join our team in the UK ...

Senior Software Engineer

Job DescriptionSenior Software Developer, AI Engineering, London, COR7550Are you a Software Engineer with a passion for AI and building scalable systems from the ground up? This is a rare opportunity to join as an early member, shaping both the technology and the engineering ...

Senior Software Engineer

Job DescriptionSenior Software Developer, AI Engineering, London, COR7550Are you a Software Engineer with a passion for AI and building scalable systems from the ground up? This is a rare opportunity to join as an early member, shaping both the technology and the engineering ...

Web: Full Stack Tech Lead

Full-Stack Web Developer — React, FastAPI, Elasticsearch (AWS/GCP) About Clarity Clarity is redefining customer experience with AI. Our mission is to empower businesses to deliver faster, smarter, and more human service interactions. By combining cutting‑edge AI with intuitive design, ...

Senior Software AI Engineer Production Systems, TS/React

A technology company in Greater London is seeking a Senior Software Engineer to design and maintain reliable full-stack systems. You will work in a self-organizing team, focusing on software engineering and applied AI. The ideal candidate should have hands-on experience with TypeScript and React, and possess str ...

Senior Lead React Engineer – Frontend for Trading Tech

A leading global financial services firm in London seeks a Senior Lead Software Engineer to join an agile team focused on enhancing and delivering top-notch technology products. The successful candidate will have 5+ years of experience, excel in software engineering concepts, and bring practical cloud-native exp ...

Senior Software Engineer C#, .NET, React | Hybrid Growth

A Global Commodities Brokerage in the City of London seeks a Senior C#, .NET Software Engineer to join their front office team. This pivotal role involves immediate contributions to the design, coding, and testing of modern web applications, and requires excellent knowledge of C#, .NET, and React. The position o ...

Full Stack Engineer (London) Python, AWS, Vue/React

A leading tech recruitment agency is offering a Full Stack Developer Opportunity in London. The successful candidate will design and implement services in Python and collaborate on infrastructure maintenance in a dynamic, agile team. They must have at least 4 years of experience and the right to work in the UK. ...

React Native Front End Engineer Tablet POS (Hybrid)

A tech startup in London is seeking a Front-End Engineer to enhance and develop a tablet-based POS application. The role requires strong skills in React Native and TypeScript, alongside a background in front-end engineering. Candidates should be adept at improving UI quality and optimizing performance in a fast- ...

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

Skin + Me is a technology-driven startup 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 manufactur ...

Senior React Native Engineer — Luxury Mobile UX & Payments

A cutting-edge tech company in Greater London is searching for a Senior React Native Engineer to elevate its mobile experience, defining luxury commerce through technology. You will develop high-quality, gesture-driven UX and own payment integrations. The ideal candidate has over 6 years of experience in React N ...

Hybrid React Native Mobile Engineer — Build Fintech Impact

A leading financial technology firm in Greater London is seeking a React Native Engineer to contribute to an exciting new mobile product. The role offers the opportunity to work in a dynamic team and solve complex challenges while building solutions that empower small businesses. Key responsibilities include col ...

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 ...

Senior Frontend Engineer — React for Data Platforms Hybrid

Internetwork Expert is seeking a Senior Frontend Engineer in London. This hybrid role involves designing user interfaces for machine learning applications and collaborating with teams to develop innovative solutions. Candidates should have strong experience in React.js, Redux, Tailwind, and Typescript, and a con ...

React + TypeScript Engineer for High Growth Scale up

Jack & Jill is looking for an Intermediate Software Engineer (React) to join a high-performing team in London. You'll develop modern web applications that manage over £1B in transactions annually. The ideal candidate has 5-8 years with React and TypeScript, strong technical foundations, and a collaborative minds ...

Senior Product Engineer (Python/React) Tech for good

Senior Product Engineer (Python/React) - Tech for good Salary: Up to £85k Location: 1-2 days p/week in London (some flexibility) Senior Product Engineer (Python/React) - would you like the opportunity to work for a tech for good organisation operating in the restoration space? They’re cur ...

Product Engineer – Full‑Stack (React/Python) with Equity

Jack & Jill is seeking a Product Engineer in London to join a high-growth startup focused on creating innovative solutions for enterprise software deployment. The role involves designing intuitive user experiences, direct user engagement, and owning the entire lifecycle of product features. Ideal candidates will ...

Senior Software Engineer – React & ML Infra (FinTech Trading)

A leading FinTech firm in London is seeking a talented Senior Software Engineer to join its growing technology team. In this role, you will design, develop, and maintain scalable applications, focusing on front-end interfaces using React. The ideal candidate will have over 7 years of software engineering experie ...

Senior Full Stack Engineer: AI Platform, Python & React

A tech recruitment firm based in London is seeking a Senior Full Stack Engineer with experience in Python and modern frontend frameworks like React and TypeScript. In this hybrid role, the engineer will design backend systems, create scalable frontend architecture, and integrate complex systems. The ideal candid ...

Mid Level Full Stack Engineer: React/TypeScript & C#

A leading rail technology company in the United Kingdom is seeking a mid level Full Stack Engineer. You will deliver new functionalities, ensure code quality, and manage the development lifecycle. The ideal candidate has strong experience in React, TypeScript, and C# .NET, thrives in a collaborative environment, ...

Senior React Native Frontend Engineer — UI/UX Leader

A leading tech firm in Greater London is looking for a Senior Frontend Engineer to join their Core development team. The role requires at least 2 years of recent experience with React Native and a minimum of 7 years with JavaScript and TypeScript. You will be responsible for developing the app architecture, ment ...

Frontend Engineer (React/TS) Real Time Accounting, Equity

An innovative accounting-tech startup is looking for a Frontend Engineer in Greater London. This role involves delivering cutting-edge accounting technology within a small, dynamic team. Ideal candidates should have strong experience in frontend development with technologies like React and Typescript, possess ex ...

Senior Frontend Engineer — React/Next.js in AI Startup

An innovative AI start-up in the UK is seeking a talented individual to manage frontend development using React and Next.js. This role is pivotal in building cutting-edge features for their prototype application. Ideal candidates thrive in fast-paced environments and are eager to master new programming languages ...

Senior Frontend Engineer (React/TS) Remote, Impactful UI

A leading tech company in Greater London is seeking a Senior Front-end Engineer to build a world-class UI/UX for its platform using React and Typescript. Candidates should have 4+ years of experience in enterprise product development, a passion for user-centric design, and the ability to collaborate effectively ...

Senior TS/React Full Stack Engineer — Hybrid + Equity

A skincare technology startup in Greater London is seeking a Senior Software Engineer to revolutionize personalized skincare. This hybrid role emphasizes using modern AI tools to enhance productivity while working on full-stack development. Candidates should possess strong skills in Typescript, React, and relati ...

Senior Node & React Full Stack Engineer | Microservices & AI

A fast-scaling RegTech startup is seeking a Node & React Full Stack Engineer to enhance their microservices architecture. The candidate will play a crucial role in ensuring seamless user experiences while leveraging cutting-edge technology. Responsibilities include transforming ideas into scalable code and autom ...

Remote Senior Fullstack JS Engineer — React/Node/Express

A leading engineering firm is seeking passionate developers for remote positions in the Greater London area. In this role, you'll collaborate with visionary clients, tackle complex challenges, and grow within a supportive team environment. Ideal candidates should be proactive and possess expertise in React, Node ...

Senior Full Stack Engineer – HealthTech (React/TS/Node)

A leading HealthTech company in London seeks a Senior Full Stack Engineer to develop scalable, cloud-native products. The ideal candidate has over 5 years of experience with React, Typescript, Node.js, and AWS, working in data-sensitive environments. The role involves mentoring engineers and ensuring high engine ...

Senior Go + React Full Stack Engineer — Scale Microservices

Xapien is seeking a Fullstack Engineer (Go + React) to enhance their platform as they grow rapidly in London. Key responsibilities include designing scalable microservices and developing React components, collaborating closely with diverse teams to turn complex needs into solutions. Ideal candidates have strong ...

Senior Frontend Engineer: AI Driven Scaleup & React Mastery

Digital Waffle, a fast-scaling AI-enabled property technology business in Greater London, is seeking a Front End Engineer to build next-generation products. The ideal candidate should have strong React skills and experience in a high-growth environment, utilizing AI-assisted development workflows. Responsibiliti ...

Lead Ruby on Rails Engineer — API & React Leader

Hawksworth is seeking an experienced Rails Engineer to contribute to developing their mortgage platform. This permanent position offers a salary of £115k, a 12% bonus, and up to 21% pension. The ideal candidate will have over 5 years of experience with Ruby on Rails, along with skills in React and APIs. This rol ...

Senior Software Engineer (Python/React) – Tech for good

Senior Software Engineer (Python/React) – Tech for good Up to £85k 2-4 days p/month in London Senior Software Engineer (Python/React) – Would you like the opportunity to work for a climate technology company? This is an exciting opportunity for a Product focused Software Engineer to join ...

UI / React Engineer (TypeScript) London, UK Fulltime Hybrid

Job Role UI React Engineer TypeScript – London, UK Overview We are seeking an experienced UI React Engineer with strong expertise in the banking domain to oversee the planning, execution, and successful delivery of projects. Hybrid Working Work will include a b ...

Senior Full Stack Engineer (React/Node) £80 100k

Senior Full Stack Engineer - £80-100k - 3 days a week in Central London We’re working with a fast-growing SaaS company building tools that support modern organisations at scale. The product focuses on simplifying complex internal processes through thoughtful design, flexibility, and seamles ...

Full‑Stack Engineer (React + Python) — AI‑Driven Platform

Oritain is seeking a skilled individual contributor in London for a hybrid role, working across full stack development. Responsibilities include building modern React frontends and Python backend services while ensuring system reliability. The ideal candidate has strong experience with production systems, can me ...

Senior/Lead Engineer (React & TypeScript) in London Onroute

Senior/Lead Engineer (React & TypeScript) London, United Kingdom. We are seeking a highly skilled Senior/Lead Engineer with deep expertise in React (Next.js), React Native, and TypeScript to join our team full‑time. In this role, you will take ownership of our cross‑platform mobile applic ...

Frontend Engineer for AI Data Platform (React/TS)

Jack & Jill is seeking a Software Engineer (Frontend) in London, UK, to build intuitive interfaces for AI-native data orchestration. This key role involves developing responsive web applications, collaborating with teams to implement data workflows, and optimizing performance. Candidates should have strong exper ...

Real Time Livestream Full Stack Engineer (React/Next.js)

WorksHub is looking for a Full Stack Engineer to join the Livestreaming Team in Greater London. In this role, you will design and optimize pipelines for media delivery, develop responsive frontends using Next.js and React, and architect scalable infrastructure using AWS. Successful candidates will have hands-on ...

Lead/ Staff Frontend React Engineer in London Mindera

About the Position At Mindera, we craft software with people we love. We’re looking for a Staff Frontend React Engineer to join our team! You’ll play a key technical leadership role, working closely with architects, product managers, and cross-functional teams. Responsibilities You w ...

Hybrid Full Stack Engineer Python/React for Trading

Role: Full Stack Software Engineer (Python / React) Client: Leading Multi-Asset Trading Firm Compensation: Up to £140,000 Base + Bonus + Comprehensive Package Location: London (Hybrid)Overview ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Java Developer Java React Springboot Jobs in London Job Search Guide, Trends and Insights