96,664+ Java Developer Java Developer Lead Jobs in London, UK — Local Employers Hiring July 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

Intapp Senior Developer — Hybrid (Risk & Open Suite)

A leading law firm in Greater London is looking for an Intapp Senior Developer to enhance the firm's Risk Business applications. This full-time, permanent role will involve supporting the Intapp suite and collaborating with stakeholders to implement technical improvements. The candidate should have strong experi ...

Junior Quant Researcher, Analyst, Trader or Developer

Full‑Time Junior Quant Roles | Early‑Career Opportunities Looking to transform a strong academic background into a high‑impact, long‑term career in industry? We're hiring early‑career quants into full‑time roles at high‑performing, research‑led firms where quantitative thinking isn't a su ...

Remote PM for Developer Infra, Laravel Cloud

Laravel is looking for a Product Manager to lead the development of Laravel Cloud, focusing on building infrastructure for developers. This role offers the opportunity to take ownership of the product from conception through to launch, with a strong emphasis on collaboration across engineering, design, and ma ...

Quantitative Developer – Up to £200,000 + Bonus + Benefits

£200,000 + Bonus + Comprehensive Benefits Opportunity A leading global hedge fund is seeking a Python Quantitative Developer to join its front‑office technology team, working at the intersection of quantitative research, engineering, and trading. In this role, you'll partner direc ...

Senior Go Developer AWS Cloud Native (London)

Roc Search is seeking an experienced Software Developer for a permanent role in London, focusing on large-scale cloud-native platform development. The ideal candidate has over 5 years of software development experience, strong skills in Go and AWS, and a willingness to learn Clojure. Join a collaborati ...

Senior Software Developer, AI Engineering, London, COR7550

Senior Software Developer, AI Engineering, London, COR7550 Are 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 of an ambitious product! T ...

Game Engine Developer for Live, Editable Worlds

A video game start-up in London is looking for a passionate Game Engine Developer to join their team. You will be involved in creating and managing games, developing new gameplay systems, and building engine features. The ideal candidate should have 1 to 4 years of experience in software engineering or game deve ...

Hybrid London Salesforce Developer – Apex, LWC & Integrations

Falcon Smart IT Limited is seeking a Salesforce Developer based in London, offering a hybrid working model. The ideal candidate will have extensive experience in Salesforce implementation, customization using the Lightning platform, and strong expertise in Apex and SOQL. Candidates should demonstrate t ...

Remote SAP ABAP Developer EU, KSeF & Integrations

Sivara GmbH is seeking a freelance/contract SAP ABAP Developer for a remote, Europe-based on-demand contractor engagement. This role offers flexible work hours of 0–20 hours per week as project demands arise, focusing on SAP ABAP development and compliance with Poland eInvoicing (KSeF) requirements. Th ...

C# .NET Desktop Developer (WPF/WinForms) | FinTech

Adecco is seeking a C# .NET Developer to join their technology team in London, responsible for developing and maintaining critical desktop applications. The role will involve supporting production systems and collaborating with teams across the globe to optimize performance and implement upgrades. Appl ...

Senior C++ Developer | High Growth Start Up

Join one of the UK’s most exciting high-growth technology companies at a defining stage of its journey. Backed by world-class investors with portfolios including Anthropic, Figma, and Revolut, and built by engineers from organisations including Palantir, Microsoft, and BAE Systems, this is an oppor ...

Freelance Backend Developer in London Rough Trade

Freelance Backend Developer London, United Kingdom Posted 9 months ago Job Type Full time Tech Stack Python (existing integration codebase) JavaScript / Shopify Admin Apps Google Cloud Platform Scope of Work </ ...

Remote Python Developer Cloud & Data Engineering Path

Sivara GmbH is seeking a Junior to Mid-Level Python Developer for a remote position in the UK. This role provides a fantastic opportunity for someone looking to enhance their Python, SQL, and cloud skills, while progressing into a broader cloud/data engineering career. The ideal candidate will have str ...

C++ Quant Developer Front Office Trading & Risk

RJC Group is seeking a skilled developer in the Greater London area. The role focuses on developing well-structured and scalable code for a Tier-one energy trading company. Candidates should have expertise in C++ and preferably some exposure to Python. The successful candidate will work closely with th ...

Quant Developer: Build Production Algos & Data Systems

A leading financial technology firm in Greater London is seeking an exceptional Quantitative Developer to design and implement proprietary systems that drive financial strategies. The ideal candidate will have 5+ years of software engineering experience, strong fundamentals in computer science, and proficiency i ...

Senior Full Stack Developer (React & C#.NET)

Salary: £45,000 - 70,000 per year Requirements Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns Expertise in C# .NET Core, REST APIs, and microservices-based development Experience with data pipelines and analytics ...

Salesforce FSC Developer: LWC, Flows & API Integrations

Sivara GmbH is seeking a Salesforce Financial Services Cloud Developer for a permanent role in London/Hybrid with a salary of up to £95,000 plus bonus and benefits. This position will play a crucial role in a major Salesforce transformation program to re-platform the client lifecycle on Salesforce Financial S ...

Remote Contract Software Developer – PHP, Python & AWS

Sivara GmbH is offering a Software Developer position in Greater London on a five-month contract. This role involves developing and enhancing applications, supporting integrations, and improving reporting processes with a flexible hybrid and remote work environment. The ideal candidate will have strong ...

Hybrid Full Stack .NET Developer (C#/Azure)

Hanson Wade in London is seeking a Software Developer focusing on full-stack .NET development. The role involves improving and maintaining software systems in a hybrid work environment, collaborating with various teams to deliver high-quality digital products. Successful candidates will have strong C# ...

Senior C++ Developer — Low Latency Trading Engine

Miller Maxwell, a leading brokerage in London, is seeking a Senior C++ Developer to join their expanding team. The successful candidate will work on the client’s core trading engine, contributing to low-latency market data solutions. This role offers an exciting opportunity to take ownership of high-vi ...

Hybrid Angular Developer – Build Scalable Web Apps

Capgemini is looking for a Junior Angular Developer in Glasgow, UK. The role involves developing and maintaining scalable web applications using the Angular framework and requires proficiency in TypeScript and JavaScript. Successful candidates will collaborate with backend developers and designers, foc ...

Junior Python Developer in London Quant Capital

Junior Python Developer – Fintech Quant Capital is urgently looking for a Python Developer to join our high profile client. Our client is a leading FinTech company based in the City of London. They provide high class Derivatives Instruments Valuation within the financial... ...and through d ...

AWS Serverless Developer — Modernize Microservices (London Hybrid)

Kryptos Technologies UK Limited is seeking an experienced AWS Application Developer based in Greater London. The role focuses on building scalable cloud-native applications and modernizing existing systems. The ideal candidate will have expertise in AWS serverless services, including Lambda and API Gat ...

UI Developer Contract in London Quant Capital

The Role I am hiring to grow the UI team to develop new features for our exciting frontend product built in React, as well as maintaining existing features. UI Developers Must Have Deep knowledge of JavaScript or TypeScript, HTML and CSS Experience of backend syste ...

Salesforce Developer: Apex, LWC & Integrations (9 mo)

Steadmanbrown is searching for a Salesforce Developer to join their Fin-Tech client on a 9-month Fixed-Term Contract. The role involves developing custom solutions on the Salesforce platform using Apex and Lightning Web Components, while ensuring adherence to best practices in coding and integration. T ...

Python Developer (Energy) – London – £700 850/day

Python Developer (Energy) – London – £700-850/day (Python, React, Azure, LLM) Overview We’re working with an industry leading energy company that is looking for an experienced full stack Python Developer to join them as part of an internal LLM initiative for an initial 6-month contract. < ...

Senior Software Engineer, AI‑Enhanced Developer Experience

Cisco Systems is looking for a Senior Software Engineer to join the Isovalent team. The ideal candidate will have over six years of experience in architecture, operations, and CI/CD implementation. You will architect AI-assisted tools, collaborate on coding, and streamline operations. This role is at the forefro ...

CCH Tagetik & ETL Developer – Finance Systems Expert

Capgemini is seeking an experienced CCH Tagetik + ETL Developer in London. This role will involve application development for CCH Tagetik databases while ensuring all governance requirements are met. You will collaborate closely with finance teams to enhance system functionality and deliver high-quality solut ...

Quantitative Developer (Python/C++) for Greenfield MFT

Client Server Ltd. is seeking a highly talented Quantitative Developer specializing in Python and C++ to join their London team. This impactful role involves designing and implementing trade execution algorithms for a Greenfield MFT platform in Equities trading. The successful candidate will be rewarde ...

Physics Content Developer for AI Enhanced Learning

A leading education technology company in London is seeking an Instructional Content Developer (Physics) to create engaging educational content for A-Level and GCSE courses. The ideal candidate will have strong physics knowledge, excellent communication skills, and a passion for education. This role offers a com ...

Sales and Marketing Manager (UK Residential, Developer)

Sales and Marketing Manager (UK Residential, Developer) Join to apply for the Sales and Marketing Manager (UK Residential, Developer) role at KOS International Limited Sales and Marketing Manager (UK Residential, Developer) 1 day ago Be among the fi ...

Electrical Manager – Luxury High‑Rise Developer, London

A luxury residential developer in Central London is seeking an experienced Electrical Manager to oversee high-rise residential projects. The candidate should have at least 4 years’ experience, a strong background with main contractors, and be familiar with electrical systems from installation to QA processes. Ce ...

Low Latency Quant Developer (HFT) – Remote/EMEA

A leading crypto trading firm is seeking a Quantitative Developer (Low Latency) to join their newly formed trading team. This full-time role involves developing trading algorithms and building systems for low-latency, high-frequency trading. Candidates should have strong programming skills, with a focus on Rust, ...

FO Rates/Credit Quantitative Developer Senior VP

Overview FO Rates/Credit Quantitative Developer - Senior VP role at BBVA . Location: London, England, United Kingdom. About the role Quantitative & Business Solutions (QBS) is a specialized unit within BBVA CIB – Global Markets, dedicated to providing investment ...

Front Office Quant Developer — Commodities & Python Tools

A leading hedge fund based in London is seeking a Quantitative Developer to bridge software engineering with trading. The role involves developing robust pricing and risk management tools while collaborating closely with Portfolio Managers. The ideal candidate will possess strong Python skills and experience in ...

Technical Product Manager Developer Tools (Hybrid, London)

Technical Product Manager – Developer Tools / need manual testing and web exp. Location: Central London (Hybrid – 2 days WFH) Salary: Up to £140,000 Benefits: Private healthcare, gym membership, hardware budget, and more A rare ...

GoLang Developer — Cloud Platform (London, In Office)

A leading cloud development firm in London is seeking an experienced GoLang Developer to join their Enterprise Cloud Development Projects team. The role requires strong GoLang skills and the ability to deliver projects from inception to completion in a fast-paced environment. Ideal candidates will possess at lea ...

Remote React.js Developer — AI/ML Frontend Engineer

In the world of AI, behavioural predictions are leading the charge to better machine learning. There is so much happening in the AI space. Advances in the economic sectors have seen automated business practices rapidly increasing economic value. While the realm of the human sciences has used the power ...

Senior Moodle Developer: Core LMS & Plugins Specialist

A prestigious university in London is seeking an experienced Moodle Developer to join their Core Teaching Platforms team. The ideal candidate will contribute to Moodle development, engaging with a multi-disciplinary team to ensure quality software delivery. Responsibilities include writing clean code, maintainin ...

Python Quant Developer | High Frequency Trading Team

Python Quant Developer | High-Frequency Trading Team We are working with a leading traditional and digital asset trading firm whose mission is to build a global financial institution designed for market integrity and efficiency. They apply a disciplined, first-principles approach to everything th ...

C# Developer Equity Derivatives Technology Risk (AVP)

**C# Developer - Equity Derivatives Technology Risk (AVP)** Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. ...

Junior Buyer & Product Developer – Beauty & Home (Hybrid)

TRP RECRUITMENT is seeking a Junior Buyer/Product Developer to join a dynamic team in the beauty and homeware sector. This hybrid role demands a minimum of 3 days in the office, focusing on developing innovative products and supporting market trends. The ideal candidate will possess experience in buyin ...

Product Marketing Manager — Developer‑First GTM Leader

Ably is searching for a Product Marketing Manager who will play a key role in the go-to-market engine that powers growth. You will translate complex technical infrastructure into engaging narratives and tools for the Sales and Customer Success teams. The ideal candidate has significant experience in a ...

UX Developer Intern: Shape Intuitive Interfaces & Grow

A dynamic tech company in the UK is seeking a UX Developer Intern to create user-friendly digital experiences. This role involves collaborating with designers and developers to implement intuitive designs and conduct usability testing. Candidates should be pursuing a degree in Human-Computer Interaction or a rel ...

AI Startup SDR: Prospecting for Developer Tools

Cognition.AI is searching for a Sales Development Representative (SDR) to engage with prospects and drive revenue growth. Ideal candidates will possess a strong understanding of our AI technology and have a track record of success in sales roles. You will work closely with our go-to-market team to acce ...

Web Platform Engineering Manager — Drive Developer Experience

Marks and Spencer is seeking a Software Engineering Manager to lead their engineering team focused on developing innovative applications. The role includes managing the web platform and directing technical vision for reusable tools and pipelines. The ideal candidate will have a strong background in sof ...

Quantitative Developer (Fixed Income/Credit) Hedge Fund

Quantitative Developer (Fixed Income/Credit) - Hedge Fund - London - £120k to £140k Location: London Durlston Partners is working with an elite-level Hedge Fund that is looking for a Quantitative Developer (Fixed Income/Credit) to join their team. Experience Level <b ...

Quant Developer Fixed Income/Credit | Greenfield Python

Job Search Place Limited is seeking a Quantitative Developer in London, focusing on Fixed Income and Credit for an elite-level Hedge Fund. Candidates should have 2-8 years of relevant experience in a Quant Development role and be familiar with Python and libraries like NumPy and Pandas. The firm offers ...

SC Cleared Node.js Developer — Remote Public Sector

Sanderson Government & Defence is seeking an experienced SC Cleared Node.js Developer for a remote contract role in the UK. The position offers £560 per day (Inside IR35) and focuses on developing key public services, ensuring accessibility and usability. You will work with modern cloud-based platforms ...

Interim Power Platform Developer (12 month FTC)

The Value of Active Minds About JupiterJupiter is one of the UK’s leading investment management companies with just under 500 employees and £54 billion worth of assets under management (as at 31st December&n ...

🚀 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 Developer Lead Jobs in London Job Search Guide, Trends and Insights