137,628+ Lead Java Application Developer Java Web Tech Jobs in London, UK — Local Employers Hiring June 2026

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Senior Developer

Job Description The Senior Developer is responsible for the design, build, and support of enterprise‑grade solutions aligned to TrinityBridge’s Power Platform Environment Strategy. The role focuses on delivering well‑governed, secure, and scalable applications and integrations using Power Apps, P ...

Software Developer

Job Description This is an exciting opportunity within technology consultancy, which offers you fast‑track career development opportunities, as well as the opportunity to explore new and cutting‐edge technologies. This role supports the full life cycle of software development, and includes the op ...

C++ developer

As a Senior C++ Engineer, you will be a member of a small, high performing team responsible for global derivatives algorithmic trading platform. Working closely with technologists, quants and traders to develop our in‑house trading technology and optimise it to achieve market‑leading performance and reliab ...

C++ Developer

An exciting opportunity has arisen for a Senior C++ Developer to join a high-performing engineering team delivering large-scale gaming and betting platform technology used by globally recognised brands. This role sits within a modern product engineering environment focused on building and enhancing white-l ...

.NET Developer

Senior Software Development Engineer – Payments About the role The payments service team are the heart of Tesco Technology, serving 28 million+ shoppers in the UK and abroad. We deliver HTTP services that reliably manage payments at global scale, 24 hours a day every day. We also provide ...

C++ developer

As a Senior C++ Engineer, you will be a member of a small, high performing team responsible for global derivatives algorithmic trading platform. Working closely with technologists, quants and traders to develop our in‑house trading technology and optimise it to achieve market‑leading performance and reliab ...

Quantitative Developer

Our Quantitative Developers are the enablers of our success. They work side-by-side with our researchers to realise their ideas in global financial markets. They work at the bleeding-edge with immense compute power at their fingertips to achieve our aim: predicting the future. The core tech stack is C# and ...

Quantitative Developer

Founded in 2013, GSR is a leading market‑making and programmatic trading company in the fast‑evolving world of cryptocurrency trading. With more than 200 employees in 5 countries, we provide billions of dollars of liquidity to cryptocurrency protocols and exchanges daily. We build long‑term relationships w ...

Quantitative Developer

Legal & General is one of Europe’s largest asset managers, providing clients and partners with complex, responsible investment solutions, across public and private markets. As a global investor, we are present where our clients most need us – from Hong Kong and Singapore, to Chicago and major European financi ...

Quantitative Developer

Join to apply for the Quantitative Developer role at G-Research Join to apply for the Quantitative Developer role at G-Research Direct message the job poster from G-Research Talent Acquisition Specialist at G-Researc ...

Quantitative Developer

Quant Developer This role sits within a global, technology-driven investment firm running systematic and quantitative strategies across financial markets. The firm builds its own trading, research, and data platforms in-house. As a Quant Developer, the role bridges quantitative research a ...

UI Developer

Overview Direct message the job poster from Bonhill Partners Skills React, Typescript to expert level Ideally back-end development knowledge Prior experience in front office trading preferred This role requires 5 days in office in London and wil ...

React Developer

Overview Purpose of Role: To be a member of the Front End Engineering team to develop, support and maintain technology solutions for clients, partners and internal Remarkable solutions. The role will also work with other members of the wider Engineering team in taking technical responsibility and ...

Frontend Developer

Overview London — on-site, 5 days per week. Full-time role requiring 2–5 years’ experience. About the Company I am working with an early-stage, venture-backed energy technology startup that is building the intelligence layer for the electrification of real esta ...

Ruby Developer

Overview Ruby Developer - Up to £75,000 - SaaS Salary: Paying £55,000 - £75,000 depending on experience Location: Hybrid working in Central London Office The Company I’m working with a scaling SaaS company that’s transforming the way busi ...

iOS Developer

Who We AreKonrad is a next generation digital consultancy. We are dedicated to solving complex business problems for our global clients with creative and forward-thinking solutions. Our employees enjoy a culture built on innovation and a commitment to creating best-in-class digital produc ...

Frontend Developer

Overview Frontend-Focused Full-Stack Engineer – AI x LegalTech | £150,000 + Equity | Onsite in Central London One of Europe’s most exciting AI startups is transforming how legal teams interact with complex information. They’re on the lookout for a frontend-leaning full-stack enginee ...

Ios Developer

Join to apply for the Ios Developer role at TieTalent 5+ years of professional experience in iOS application development. Expert in Swift, Objective-C(optional) with strong knowledge of the iOS SDK and Xcode. Experience with SwiftUI, Combine, and modern con ...

Python Developer

Overview Python Developer (AI and Automation) - £60-75k London 2-3 days per week in office My prestigious legal client is looking for a Python Developer to join their Innovation function working across a range of AI and Automation initiatives. Responsibilitie ...

Frontend Developer

Overview A Digital Product consultancy has just won a major new account in the Telecom sector, and they’re kicking off a fresh delivery squad. They’re looking for a Strong FE Engineer (5/6 years’ experience) who can hit the ground running and make a lasting impact on a greenfield build. Loc ...

Quantitative Developer

Your Opportunity Partner with asset allocation PMs and researchers to take ideas from notebook to production: signals, CMAs, optimization, portfolio construction, rebalancing rules, and attribution. Build and extend the team's research platform: data ingestion, back testing, scena ...

Quantitative Developer

About LSEG LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open‑access partners with a commitment to excellence in delivering the services our customers expect from us. With extensive experience, deep knowl ...

Quantitative Developer

WorldQuant develops and deploys systematic financial strategies across a broad range of asset classes and global markets. We seek to produce high-quality predictive signals (alphas) through our proprietary research platform to employ financial strategies focused on market inefficiencies. Our teams work col ...

Quantitative Developer

A leading oil and gas trading business is seeking an ambitious Front Office Trading Analyst to join its team. In this role, you will work closely with Traders, Market Analysts, and IT, building and enhancing the data and analytical infrastructure that directly supports front-office decision‑making. <p ...

Quantitative Developer

A career at Janus Henderson is more than a job, it’s about investing in a brighter future together. Responsibilities Partner with asset allocation PMs and researchers to take ideas from notebook to production: signals, CMAs, optimization, portfolio construction, rebalancing rules, a ...

Quantitative Developer

About Us Founded in 2013, GSR is a leading market-making and programmatic trading company in the fast-evolving world of cryptocurrency trading. With more than 200 employees in 5 countries, we provide billions of dollars of liquidity to cryptocurrency protocols and exchanges daily. We build long-te ...

Quantitative Developer

Location: London, Hybrid About the Company Our client is a prominent global financial institution operating across multiple markets, offering investment banking, corporate banking and risk management services. Known for its strong regulatory discipline and commitment to innovation, the fi ...

Quantitative Developer

Rates Quant Developer – FinTech BrokerageLondon We are a fast-growing global brokerage firm leveraging cutting-edge technologies and quantitative methods in the fixed‑income derivatives market. We work with some of the world's largest hedge funds and asset managers, providing analytics and exe ...

Quantitative Developer

Overview We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world‑class researchers and engineers in an environment that values deep exploration and methodical execution – because the best ideas take tim ...

Quantitative Developer

Rust Quant Developer | Hybrid in London | Up to £300k + Up to 100% Bonus + Package We’re working with a fast-growing, engineering-led company to find a Rust Quant Developer to join their high-performance systems team. This organisation operates in a real-time, data-intensive environment, ...

Quantitative Developer

WorldQuant develops and deploys systematic financial strategies across a broad range of asset classes and global markets. We seek to produce high-quality predictive signals (alphas) through our proprietary research platform to employ financial strategies focused on market inefficiencies. Our teams work col ...

Quantitative Developer

WorldQuant develops and deploys systematic financial strategies across a broad range of asset classes and global markets. We seek to produce high-quality predictive signals (alphas) through our proprietary research platform to employ financial strategies focused on market inefficiencies. Our teams work col ...

Mobile Developer

This range is provided by Harnham. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Harnham Overview We are looking for a skilled Mobile Developer with strong SQ ...

Frontend Developer

This range is provided by Prism Digital. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Prism Digital Front-End Engineer | React, Next.js, Tailwind | Web3/Crypto Innovation H ...

BI Developer

3 days ago Be among the first 25 applicants Company Description LGC is a global life science tools company with a broad portfolio. We work closely with our diverse customers to drive science forward and find solutions that diagnose, heal, and help feed our growing population. ...

Scala Developer

Join to apply for the Scala Developer role at TieTalent Job Title: Scala Developer – Banking Domain Job Description:Looking for an experienced Scala Developer to build and maintain high-performance applications within the banking and financial services domain. T ...

Python Developer

Backend Developer | London | 12 Month FTC | £55,000 Overview Peaple Talent have partnered with a brilliant professional services firm looking to recruit a Backend Developer. The successful candidate will be instrumental in delivering a particular project, a strategic initiative to transitio ...

Quantitative Developer

Software Engineering, Systematic Trading & Research London, UK Quantitative Developer Systematic Hedge Fund Up to £150k base + excellent bonus + potential sign-on A successful Systematic Hedge Fund with excellent returns based in Central Londo ...

Quantitative Developer

Quantitative Developer Location: London, United Kingdom About GSR: Founded in 2013, GSR is a leading market‑making and programmatic trading company in the fast‑evolving world of cryptocurrency trading. With more than 200 employees in 5 countries, we provide billions of dollars of liquidit ...

Quantitative Developer

Quantitative Developer Compensation: Competitive (Financial Services) About TradingHub Founded in 2010, TradingHub delivers uniquely intelligent trade surveillance software to world leading financial institutions. Developed by market professionals, our solutions use soph ...

Quantitative Developer

hackajob is collaborating with TradingHub to connect them with exceptional professionals for this role. Compensation: Competitive (Financial Services) About TradingHub Founded in 2010, TradingHub delivers uniquely intelligent trade surveillance software to world leading fi ...

Quantitative Developer

We’re looking for pragmatic, motivated Quantitative Developers to join Squarepoint. You’ll work directly with quantitative researchers and other technologists to build high‑impact tools, analytics, and workflows that support trading, research, and risk processes. You don’t necessarily need ...

Backend Developer

Overview Location: City Of London, England, United Kingdom We are seeking an experienced Backend Developer to design, develop, and maintain scalable backend services and REST APIs using Python and Node.js. You will work closely with product, front-end, and DevOps teams to deliver high-performa ...

Software Developer

Job Overview At Mustard, we value quick delivery and real‑world impact over perfect code. If you thrive on solving problems quickly and enjoy a flexible, outcome‑focused culture, this role could be a great fit. What You’ll Work On Expand access to new liquidity providers u ...

Frontend Developer

An opportunity to join a high-performing engineering team within the National Security space, based in London. The work directly supports law enforcement and government agencies tackling organised crime, online exploitation and child protection. The systems built here are used to help protect vulne ...

C++ Developer

This is an office based role requiring 5 days per week in their new London office. La Fosse are partnering with a market leader within the energy & trading sector, with a strong presence across oil & gas, renewables, power and carbon. They're in the market for a Core Strat, with strong C++ ...

.NET Developer

Noir Greater London, England, United Kingdom 1 day ago Be among the first 25 applicants This range is provided by Noir. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Connecting Microsoft professionals, Developers, DevOps Engineers, ...

Python Developer

Overview We’ve partnered with a small AI-driven software house that is seeking a backend Python developer to develop a new range of products set to hit the market later this year and into next. In this role, you’ll play a key part in delivering high-quality software solutions across both ne ...

Dotnet Developer

Talent Acquisition- HR APPS & SI-TAG (UK & Europe) at HCL Technologies HCLTech is a global technology company, home to more than 220,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfoli ...

Python Developer

Strong proficiency in Python (e.g., Django, Flask, FastAPI) Hands-on experience with PostgreSQL , including performance tuning and indexing Solid understanding of SDLC methodologies (Agile, Scrum, or Waterfall) Experience designing and consuming RES ...

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