19,271+ Java Developer Java React Springboot Jobs in London, UK — Local Employers Hiring June 2026

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

Android AI Apps Engineer (Kotlin)

BJAK is seeking an experienced Android Developer to enhance AI-powered applications on mobile platforms. The ideal candidate will have over 3 years of experience in Android development using Kotlin, strong skills in integrating AI features, and a solid understanding of performance optimization. This role emphasi ...

Senior Go Backend Engineer – Hybrid London (Visa)

trg.recruitment is hiring a Golang Developer in Greater London to enhance back-end capabilities for financial services platforms. This role emphasizes greenfield projects and transformation work, and requires at least 5 years of software engineering experience with 2-3 years in Golang. The position offers a hybr ...

DevOps Engineer (SRE) — Multi Cloud & IaC Architect

A financial technology firm in the United Kingdom seeks a skilled DevOps Engineer to join their Site Reliability team. The ideal candidate will build scalable infrastructure, deliver IaC and CI/CD solutions across multi-cloud and on-premise environments, and architect multi-cloud regional failover solutions. Can ...

Senior AI Platform Engineer Remote UK

Bluefish is seeking a Staff AI Platform Engineer to lead the adoption of AI across their organization, enhancing developer productivity and operational efficiency. This pivotal role involves collaborating with engineering and product teams to integrate AI into development processes and establish best practices. ...

Enterprise Node.js & TypeScript Full‑Stack Engineer

Marex in Greater London is seeking a Full Stack Developer to join the Enterprise team. In this role, you will design, develop, and maintain high-quality solutions using NodeJS and Typescript. You will collaborate with product owners and engineering teams, aiming to build scalable services that meet business dema ...

Lead Full Stack Engineer (Hybrid) – Build Scalable Platforms

Meteor Asset Management Limited is seeking an experienced Lead Full-Stack Developer to oversee technical direction and mentor a growing team. You will be responsible for architectural decisions, software development across the full stack, and effective collaboration with stakeholders. The role involves leading h ...

Senior Backend Engineer, Gaming Global, Low Latency

Tencent is hiring an experienced backend developer for their gaming division in Greater London. The ideal candidate has over 8 years of backend development experience, including at least 5 years in the gaming industry. Responsibilities include providing technical support for overseas game projects and working on ...

Group Accountant: ESG, Quality & Sustainability

Canary Wharf Group in Greater London is committed to fostering a diverse and inclusive work environment, actively supporting community well-being and sustainable programs. We provide comprehensive development opportunities to enhance employee skills, with a focus on sustainability and renewable energy. <p ...

Impact Data Scientist: Renewables, Grid Analytics & ML

A clean energy developer in the UK is seeking a Data Scientist to join their high-impact engineering team. The role involves applying data science to solar PV, battery energy storage, and next-generation technologies. Responsibilities include building geospatial tools, developing market models, and applying mach ...

Remote C++ Algorithmic Trading Test Framework Engineer

Aubay UK is looking for a skilled C++ Algorithmic Trading Developer to join a high-performing engineering team. This position focuses on designing automated testing frameworks for a complex trading system that ensures reliability and performance. The ideal candidate will have a strong C++ engineering b ...

Head of Infra & Platform Reliability

Burns Sheehan is looking for a Head of Infrastructure to lead their infrastructure strategy while ensuring platform reliability and scalability. This role involves designing AWS architecture and overseeing cloud operations, all within a high-growth SaaS environment. Key responsibilities include managing vendor r ...

Platform Automation SRE — Hybrid London, Growth & Ownership

Pertemps London is seeking a Site Reliability Engineer to join their growing team in London. This hybrid role offers a competitive salary of £50,000 per annum and a clear path to Mid-Level SRE within 18 months. You will be responsible for supporting developer builds, designing automation, and enhancing the pl ...

Senior AI Engineer Remote AI Tooling & Platform

Lendable Ltd is looking for a Senior AI Engineer to join their AI Engineering team. This role involves building AI tools to enhance developer efficiency while ensuring high-quality outputs. Responsibilities include creating connectors for various systems, enabling internal teams to utilize AI tools, an ...

C++ Core Trading Systems Engineer

DV Trading LLC is seeking an experienced software developer to join our DV Equities desk in Greater London. You will be responsible for the development and operations of trading systems, leading in the design and implementation of our core trading platform using C++ 17. The ideal candidate will have ex ...

Backend API Engineer — Shape the Future of Travel (Remote)

Duffel is searching for a Software Engineer in London to help revolutionize the travel industry by building tools for booking and distribution through an elegant API. This hybrid role involves designing and integrating with diverse travel systems while ensuring a simple and effective developer experience. </p ...

Senior Python Backend Engineer FastAPI, Databricks, Azure

Client Server Ltd. is seeking a Python Developer / Backend Software Engineer in London offering a salary of £80k to £95k. The role involves designing and developing data-centric backend services with a focus on Python and FastAPI within an Azure environment. You will work with the Infrastructure Team to maint ...

C# .NET Backend Engineer – Azure SaaS, Remote + Hackathons

Client Server Ltd. is looking for a Software Engineer / Developer specializing in C# .Net Azure. You'll work mainly from home and join the Richmond team monthly for events and hack-a-thons. Your role involves developing secure back-end architectures for a software application managing Microsoft 365 sec ...

Senior .NET Engineer — Cloud, API & Mentoring

Different Technologies Pty Ltd. based in Greater London is seeking a Senior .NET Developer to design and build modern software solutions across various industries including fintech and healthcare. This role requires 6+ years of .NET experience, and offers a collaborative environment where you will mentor less ...

Industrial OT Software Engineer & Framework Config

Recruit4Mum is looking for an OT Framework Configuration Engineer & Software Developer to join their team, focusing on secure, reliable systems in industrial automation. As part of this role, you will develop OT software solutions integrating with SCADA systems, troubleshoot software issues, and contribute to co ...

Golang Backend Architect — Distributed Systems Leader

A leading financial technology company in Greater London is seeking an experienced backend developer with at least 6 years in the field. This role involves technical leadership, mentoring of junior staff, and the driving of operational excellence in backend systems. The ideal candidate will have a strong experti ...

Data Analytics Engineer Intern – Hybrid London

A leading analytics firm is offering a DA Developer internship in London to gain hands-on experience in data and analytics. This hybrid role requires you to work in the office at least two days a week. The internship spans from June 2026 to June 2027 and offers opportunities to design dashboards, write SQL queri ...

Head of Infra & Platform Reliability

Burns Sheehan is looking for a Head of Infrastructure to lead their infrastructure strategy while ensuring platform reliability and scalability. This role involves designing AWS architecture and overseeing cloud operations, all within a high-growth SaaS environment. Key responsibilities include managing vendor r ...

Head of Infra & Platform Reliability

Burns Sheehan is looking for a Head of Infrastructure to lead their infrastructure strategy while ensuring platform reliability and scalability. This role involves designing AWS architecture and overseeing cloud operations, all within a high-growth SaaS environment. Key responsibilities include managing vendor r ...

AI Native Senior Software Engineer (Hybrid London)

Axon in London is seeking an experienced software developer to lead the creation of groundbreaking AI-driven products. The ideal candidate will have over 7 years of software development experience, strong AI-native delivery capabilities, and the ability to work effectively in a hybrid environment.This ...

Software Engineer

At Octopus Energy Trading, we’re on a mission to reshape the future of energy. As part of Octopus Energy Group, we’re creating an innovative approach to trading that will accelerate the transition to a Net Zero world. With the growth of renewables and a push toward decarbonising heating and transport, ...

Software Engineer

At Octopus Energy Trading, we’re on a mission to reshape the future of energy. As part of Octopus Energy Group, we’re creating an innovative approach to trading that will accelerate the transition to a Net Zero world. With the growth of renewables and a push toward decarbonising heating and transport, ...

Technical Lead

Hands-on Tech Lead | Hybrid | Central London | Up to £90k + Benefits Global Digital Agency are hiring a hands‑on Tech Lead to lead the delivery of digital products across web, app, and AI platforms. Based near Oxford Circus, London, this hybrid role requires 3 days per week in the office. Y ...

Full Stack Software Engineer

Location: LondonTravel: Travel required several times per year (UK and international), sometimes at short n ...

Full Stack Software Engineer

Location: LondonTravel: Travel required several times per year (UK and international), sometimes at short n ...

Senior Frontend Engineer

About Fresha Fresha is the AI‑powered operating system for the global beauty, wellness and self‑care industry, connecting and powering everything from salons and barbers to spas, medspas, fitness studios and health practices. Trusted by millions of consumers and businesses worldwide, Fresha is us ...

Senior Growth Engineer

THE BASICS This role pays up to £170k/year DOE + equity Reporting to: Head of Growth Engineering Location: Chancery Lane, London — Mon–Thu in office, Fri WFH WHAT ARE WE BUILDING? Fyxer is an AI Email & Meeting Assistant that eliminates admin burden for professio ...

Salesforce DevOps Engineer

InvestorFlow is the only company of its kind to deliver industry specialized CRM, built on Salesforce, and digital portals to help alternative asset firms find opportunities, create and manage relationships, and turn relationship insights into action with increased productivity and transparency. </ ...

App Development Consulting Engineer

Summary We help Apple’s largest business customers and strategic solution partners to create and deploy best‑in‑class app experiences on Apple platforms through design and native development best practices. From strategy, through design to deployment, we guide product teams to build consumer‑grad ...

Principal Product Marketing Manager, EMEA

Who We Are Postman is the world’s leading API platform, used by more than 45 million developers and 500,000 organizations, including 98 % of the Fortune 500. We help developers and professionals build an API‑first world by simplifying each step of the API lifecycle and streamlining collaboration, ...

Senior Cloud Engineer

Senior Cloud Engineer The Senior Cloud Engineer plays a critical role in maintaining, optimising, and evolving PL Re’s cloud‑hosted application workloads, with a primary focus on AWS. This is a high‑impact, hands‑on role responsible for operational excellence, security, reliability, and lifecycle ...

Senior Android Engineer Mobile Platform

About The Team Join SumUp’s Mobile Platform Squad as a Senior Android Engineer and become a cornerstone of our rapidly expanding Android ecosystem. With significant investment in flagship products, we are empowering our feature teams to deliver world‑class experiences. You will be instrumental in ...

App Development Consulting Engineer

Summary We help Apple’s largest business customers and strategic solution partners to create and deploy best‑in‑class app experiences on Apple platforms through design and native development best practices. From strategy, through design to deployment, we guide product teams to build consumer‑grad ...

App Development Consulting Engineer

SummaryWe help Apple’s largest business customers and strategic solution partners to create and deploy best‑in‑class app experiences on Apple platforms through design and native development best practices. From strategy, through design to deployment, we guide product teams to build consumer‑ ...

App Development Consulting Engineer

SummaryWe help Apple’s largest business customers and strategic solution partners to create and deploy best‑in‑class app experiences on Apple platforms through design and native development best practices. From strategy, through design to deployment, we guide product teams to build consumer‑ ...

Crypto Trading & Pricing Systems Engineer

Job Requirements Proven software engineering skills and the ability to build scalable, fault-tolerant systems from scratch (Python preferred). Strong understanding of market structure across CEXs (e.g., Binance, Coinbase), DEXs (e.g., Uniswap, 1inch), and OTC. T ...

Crypto Trading and Pricing Engineer in London Transak

Job Requirements Proven software engineering skills and the ability to build scalable, fault-tolerant systems from scratch (Python preferred). Strong understanding of market structure across CEXs (e.g., Binance, Coinbase), DEXs (e.g., Uniswap, 1inch), and OTC. T ...

Engineering Manager – Lead The Filter Tech Team

The Training Brokers Ltd is seeking an Engineering Manager to lead the Filter team, focusing on developer support and product delivery within an e-commerce environment. You will provide guidance, ensure effective collaboration, and maintain team balance between product and technical tasks. To succeed, ...

IDP Platform Engineer for AWS – FinTech

Quantifi, Inc. is looking for a Platform Engineer in London. You will be integral to building the Internal Developer Platform (IDP) that supports the transition to cloud native SaaS on AWS. This is a unique chance to define platform engineering at a growing FinTech. Your responsibilities include design ...

C++ Standard Library Performance Engineer

C++ Standard Library Performance Engineer London, England, United Kingdom Software and Services The C++ Language team at Apple is looking for a software engineer to develop and enhance Apple’s C++ standard library (“Libc++”) that ships on Apple’s platforms, with a main focus on performanc ...

Azure Platform Engineer – Lead Multi Tenant AKS Platform

Parser Limited in Greater London is looking for an Azure Principal Platform Engineer to architect a cutting-edge, multi-tenant AKS platform. The role includes serving as a subject matter expert, establishing an Internal Developer Platform, and mentoring the in-house team during the build process. Candidates shou ...

Salesforce Commerce Cloud (SFCC) Consultant + Agentic AI

Job Description Required 5+ years SFCC / SFRA development SFRA architecture, pipelines, cartridges, multi‑locale setups Hands‑on LLM API experience — Claude, OpenAI or equivalent Claude Code or equivalent agentic coding tooling as a core workflow </li ...

Cloud Platform Engineer III – Observability & DX

JPMorgan Chase & Co. is looking for a Software Engineer III to join our International Consumer Bank team in London. In this role, you will enhance developer experience through observability capabilities across cloud-native microservices. Your primary responsibilities include collaborating with developm ...

Senior Security Engineer: AI Driven Tooling for DevOps

Hopper is looking for a skilled Senior Security Engineer to join its Security team in Greater London. This role involves owning security tooling and automation processes to ensure applications remain secure across their lifecycle. You will work closely with engineering teams, integrating security into develop ...

Azure Platform Engineer – Lead Multi Tenant AKS Platform

Parser Limited in Greater London is looking for an Azure Principal Platform Engineer to architect a cutting-edge, multi-tenant AKS platform. The role includes serving as a subject matter expert, establishing an Internal Developer Platform, and mentoring the in-house team during the build process. Candidates shou ...

Senior Sales Development Representative

Coder is looking for a Senior Sales Development Representative (SDR) to fuel our growth by generating qualified pipeline for our Enterprise Account Managers. You’ll help bring Coder’s Environment-as-a-Service platform to some of the world’s largest companies that are adopting AI-driven development at scale ...

🚀 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