132,411+ Java Developer Java Developer Lead Jobs in London, UK — Local Employers Hiring July 2026

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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 ...

Cloud Developer

Job Title Cloud Developer Job Description The Cloud Full‑Stack Developer (with primary focus on AWS) is responsible for the end‑to‑end design, build, and delivery of secure, cloud‑hosted applications supporting PL Re strategic platforms, including the Underwriting & Modelling En ...

.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 ...

Informatica Developer

Net2Source Inc. is one of the fastest growing diversity certified global workforce solutions companies with an unprecedented YoY growth of over 100% for last 6 years working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe, Asia, Australia an ...

Kotlin Developer

Join to apply for the Kotlin Developer role at Grid Dynamics 2 months ago Be among the first 25 applicants Join to apply for the Kotlin Developer role at Grid Dynamics We are seeking a specialist Kotlin Developer with ...

Endur Developer

3 weeks ago Be among the first 25 applicants This range is provided by Intec Select. 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 Intec Select Bridging E/CTRM Talent Gap ...

ServiceNow Developer

Direct message the job poster from Us3 Consulting Senior Sales/BD Consultant - Aligning Business Goals with ServiceNow and IT Infrastructure Expertise We are seeking a skilled and forward-thinking ServiceNow professional to join our client's digital services team. In this role, you will be res ...

Golang Developer

You will join our Investment Banking client where you will sit across all areas of the business to deliver a global transformation to become truly cloud native, migrating on prem systems onto the cloud, re‑writing legacy systems/monolithic systems into microservices, and a lot of Kubernetes work. The team ...

Algo Developer

Algo Developer London – Hybrid Java, Low Latency, SOR, EMS/OMS, Linux, AWS The company This is an unmissable opportunity for an experienced Algo Developer to join one of the leading institutional digital asset firms in the market. With a global footprint and a platform s ...

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 ...

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 ...

Quantitative Developer

Caxton Associates, founded in 1983, is a global trading and investment firm with offices in London, New York, Monaco, Singapore, and Dubai. The firm manages client and proprietary capital through global macro hedge fund strategies, trading across a broad range of global markets and instruments. Abo ...

Quantitative Developer

Overview Quantifi Solutions, a leading supplier of quantitative and risk technology to the financial services sector, is seeking quantitative developers to join its growing engineering organization. We’re founder owned and profitable, and pride our selves on our collegial, bureaucracy- and politi ...

Quantitative Developer

My client is looking for a Quantitative Developer to join their Crypto trading desk, working closely with traders and quants to build and optimise cutting‑edge market making and quantitative trading systems across digital assets and DeFi markets. The role will focus on developing high‑performance, l ...

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

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 ...

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 ...

Frontend Developer

Direct message the job poster from Areti Group | B Corp Overview Co-Founder of Areti Group – Climate positive tech recruitment – We’re on a mission to put people and the planet before profit, leaving the… Job Title: Front End React Developer (Contract) Start ...

Frontend Developer

Ship the first version of the companies web application, starting from designs. Build a landing page that converts visitors into users. Implement the trading interface for minting, redeeming, and managing Leveraged Tokens. Set up Redux state management, routing with React Route ...

Python Developer

Overview Stott and May are supporting a global financial markets firm who are looking for a Python Software Engineer to join its high-performing development team, working on critical systems for one of Europe’s largest equities exchanges. The role combines hands-on coding with R&D, operational sup ...

Software Developer

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly deve ...

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 ...

Frontend Developer

Overview Frontend Developer role at TieTalent . Responsibilities Front-End Integration: Design and integrate a customized UI based on IQVIA’s ChatGPT UI template, using React.js. The front-end will feature a chatbot UI with filters and data upload fun ...

Salesforce Developer

Get AI-powered advice on this job and more exclusive features. This range is provided by TECHOHANA. 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 TECHOHANA Job summary </ ...

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 ...

ETL Developer

Overview ETL Pipeline: Develop and implement an ETL pipeline using Python to process scientific literature from PubMed and other data sources for LLM grounding. Candidates should have experience with MilVUS DB and IQwise’s vectorous toolbox, particularly in building vector databases. Seniorit ...

Frontend Developer

Direct message the job poster from Areti Group | B Corp Co-Founder of Areti Group – Climate positive tech recruitment || We’re on a mission to put people and the planet before profit, leaving the… Job Title: Front End React Developer (WebGL) – Contract Start Da ...

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 ...

Quantitative Developer

Quantitative Developer Location London Employment Type Full time Location Type Hybrid Department Analytics & Data Compensation Competitive (Financial Services) About TradingHub Founded in 2010, Tra ...

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