182,796+ Lead Java Application Developer Java Web Tech Jobs in London, UK — Local Employers Hiring June 2026

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Frontend Engineer — AI Powered UI (React & TypeScript)

Java Script Works is seeking a Front End Engineer in London, United Kingdom. The role focuses on developing high-quality, responsive web applications using React and TypeScript. Candidates should be skilled in translating UI/UX designs into functional user interfaces and collaborating effectively with product de ...

Hybrid Full‑Stack Java Engineer — HealthTech Scheduling

A leading health technology company is seeking a Full Stack Java Engineer to work on a product that drives efficiencies for the NHS. In this impactful role, you'll re-architect a shift rota application, enhancing it using Java and Angular. The position is based in London with flexibility to work from home. The i ...

Software Engineering Team Lead

Be among the first 25 applicants This range is provided by Harrington Starr. 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 Harrington Starr Associate Vice President @ Har ...

Lead Application Support Analysts

Lead Application Support Analyst Location London, Stratford Contract Type Permanent Full-Time 35 Hours per Week Salary £65,913 per annum (London weighted salary) £57,900 per annum (Regional salary) Salary offered will depend on experience. Grade 11 Closing Date 26th May 2026 Interview Process Stage 1 MS Teams ...

Lead Application Security Architect

Role Summary The Application Security Architect is a senior, influential role responsible for orchestrating and leading Arrive’s global application security strategy. As a core member of the Global Security Architecture & Engineering team, you will act as the central driver for how we securely de ...

Application Management Services Lead

We are seeking an experienced Application Management Services (AMS) Lead to join NTT DATA UK&I, with a primary focus on UK public sector clients . This is a senior, client-facing role that sits at the intersection of pre‑sales, solution design, transition and delivery governance . </p ...

Lead Application Security Architect

Role Summary The Application Security Architect is a senior, influential role responsible for orchestrating and leading Arrive’s global application security strategy. As a core member of the Global Security Architecture & Engineering team, you will act as the central driver for how we securely des ...

Lead Application Security Architect

We’ve signed up for an ambitious journey. Join us! As Arrive, we guide customers and communities towards brighter futures and more livable cities, it isn’t a challenge just anyone could take on. Luckily, we have something to help us make it happen. Our people and our values. We Arrive Curious, Fo ...

Lead Application Modernisation Architect

Advanced Resource Managers Ltd is looking for an experienced Application Solution Architect for a 6-month contract based in London with hybrid working. The ideal candidate will drive application modernisation initiatives and lead transformation programmes in the finance sector. This role requires exten ...

Lead Application Security Architect

We’ve signed up for an ambitious journey. Join us! As Arrive, we guide customers and communities towards brighter futures and more livable cities, it isn’t a challenge just anyone could take on. Luckily, we have something to help us make it happen. Our people and our values. We Arrive Curious, Fo ...

Lead Application Security Architect

Role Summary The Application Security Architect is a senior, influential role responsible for orchestrating and leading Arrive’s global application security strategy. As a core member of the Global Security Architecture & Engineering team, you will act as the central driver for how we securely des ...

Lead Application Security Architect

Role Summary The Application Security Architect is a senior, influential role responsible for orchestrating and leading Arrive’s global application security strategy. As a core member of the Global Security Architecture & Engineering team, you will act as the central driver for how we securely de ...

Application Development Technology Lead

The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming ac ...

Application Development Technology Lead

The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming ac ...

Lead Developer

Lead Java Developer Business Unit: FTSE Russell – Index Platform Company: London Stock Exchange Group (LSEG) We are seeking a highly skilled and hands‑on Lead Java Engineer with AI proficiency to help build the next generation FTSE Russell Index Platform. This plat ...

Back end Architect: Java Spring Boot & Python, Cloud Native

Requirements Java Spring Boot: Confirmed level proficiency for the architectural rebuild ,Database: PostgreSQL ,Cache : Redis / Valkey ,Architecture: REST Architecture and Event-Driven architecture ,Cloud & Infrastructure: Google Cloud Platform GCP and Kube ...

Site Reliability Engineer with Python

Site Reliability Engineer with Python Our Client looking to bring on a site reliability engineer to help deploy, manage, troubleshoot, and enhance our complex cloud-based set of internal tools and externally managed services for a variety of users across our wide-ranging organization. </p ...

Staff Software Engineer — Full Stack & PostgreSQL Pro

Skills Proficient in Python/Java programming, with a comprehensive understanding of advanced features and best practices. Experience in JavaScript/TypeScript and modern web frameworks (preferably Vue.js). Extensive experience with PostgreSQL database management system. ...

Fintech Python Web Engineer Own Projects & Impact

Java Script Works is seeking a Python Web Engineer for a major global financial exchange located in Greater London. The ideal candidate will have experience with Python-based MVC frameworks and front-end technologies including JavaScript, HTML5, and CSS3. Familiarity with Django and React is advantageous. The ro ...

Fullstack Engineer (React + TypeScript) London

Java Script Works is looking for a Fullstack Engineer to develop and maintain web applications using React and TypeScript. You will collaborate with cross-functional teams to ensure seamless integration of front-end and back-end functionalities. The role is full-time and based in London, UK. Competitiv ...

Staff Software Engineer in London Booksy

Skills Proficient in Python/Java programming, with a comprehensive understanding of advanced features and best practices. Experience in JavaScript/TypeScript and modern web frameworks (preferably Vue.js). Extensive experience with PostgreSQL database management system. ...

Full Stack AI Engineer (Java/Python/React)

Fairygodboss is seeking a Full Stack Engineer to design, build, and support scalable web applications and integrations. You will leverage technologies like Java, Python, and React to deliver impactful features. This role requires collaboration across teams, contributing to AI initiatives, and ensuring ...

Principal Software Engineer in London Core Asset Consulting

Principal Software Engineer London, United Kingdom Posted 9 months ago Tech Stack Python Rust JavaScript Azure React Streaming GCP SQL Go Docker Java Kuber ...

Cloud Software Engineer in London JPMorgan Chase & Co.

Cloud Software Engineer London, United Kingdom Posted 9 months ago JPMorgan Chase & Co. Tech stack Amazon AWS TypeScript Spring Boot Microservices React Java Databases Cloud Spring Framew ...

Senior Database Sepecialist Hedgefund in London Quant Capital

Senior Database Sepecialist - Hedgefund London, UnitedKingdom Posted about 1 year ago Tech stack Python C Databases Redis Cassandra MongoDB PostgreSQL information security Hedge Fund </ ...

Cloud Platform Engineer: Full Stack AWS Microservices

Cloud Software Engineer London, United Kingdom Posted 9 months ago JPMorgan Chase & Co. Tech stack Amazon AWS TypeScript Spring Boot Microservices React Java Databases Cloud Spring Framew ...

64521 1 Software Engineer in London Career Moves Group

64521-1 - Software Engineer London, United Kingdom Posted 9 months ago Tech Stack Python JavaScript PHP Java Requirements Clear milestones, with relevant documentation and test plans. Experienc ...

Software Engineer — Architect & Build High‑Impact Apps

64521-1 - Software Engineer London, United Kingdom Posted 9 months ago Tech Stack Python JavaScript PHP Java Requirements Clear milestones, with relevant documentation and test plans. Experienc ...

staff data engineer in London King

Staff Data Engineer London, United Kingdom Posted 10 months ago Compensation: Competitive Role type: Full time Visa sponsorship: Not provided Tech stack software design PostgreSQL Java MySQL Databases ...

London Based Principal Cloud Native Engineer

Principal Software Engineer London, United Kingdom Posted 9 months ago Tech Stack Python Rust JavaScript Azure React Streaming GCP SQL Go Docker Java Kuber ...

Senior Machine Learning Engineer in London Ravelin

Senior Machine Learning Engineer London, United Kingdom Posted 11 months ago Tech stack C Java PyTorch Machine Learning Rust Go TensorFlow Requirements The ideal candidate should ...

Head of HFT in London Fasanara

Head of HFT London, UnitedKingdom Posted 12 months ago Compensation Competitive Role type Full time Visa sponsorship Not provided Benefits & perks Competitive Tech stack SQL Java </li ...

Financial Engineer in London Quant Capital

Financial Engineer London, United Kingdom Posted 10 months ago This is a job posted by our partner Jooble Tech Stack Java Modelling C Derivatives Required Skills Experience with MUREX, Algorithmics, Sophis, Fide ...

Sr. Applied Scientist, Brand Safety in London Amazon

Sr. Applied Scientist, Brand Safety London, United Kingdom Posted 10 months ago Tech stack Java Python C Text mining Optimization Information theory Areas of Expertise Statistics, optimization, text min ...

Head of HFT in London Fasanara

Head of HFT London, UnitedKingdom Posted 12 months ago Compensation Competitive Role type Full time Visa sponsorship Not provided Benefits & perks Competitive Tech stack SQL Java </li ...

Computing Teacher Outstanding Mixed School in Haringey... in London Perham Education Partnership

Computing Teacher Outstanding Mixed School in Haringey, London, United Kingdom Posted 12 months ago Tech stack JavaScript Python Java Teaching Approach KS3, KS4, and KS5: engaging students with real‑world applicat ...

Professional Services Consultant in London Quant Capital

Professional Services Consultant London, United Kingdom Posted 10 months ago Overview This role suits a consultant with strong analytical and problem-solving skills, experience with Window Tech stack XML C Java Window ...

Software Engineer III JPM Personal Investing

Job Responsibilities Deliver end-to-end cutting‑edge solutions in the form of cloud‑native microservice architecture applications leveraging the latest technologies and the best industry practices. Design, estimate costs for and implement technical solutions written in Java/Kotlin ...

Senior Full Stack Engineer WhoSampled

Every great song has a story behind it: a sample flipped into something new, a melody borrowed and reborn, a classic reinterpreted for a new generation. WhoSampled is where those stories live.WhoSampled is the world's leading database of music samples, interpolations, cover songs, and remixes. Buil ...

Senior Full Stack Engineer WhoSampled

Every great song has a story behind it: a sample flipped into something new, a melody borrowed and reborn, a classic reinterpreted for a new generation. WhoSampled is where those stories live.WhoSampled is the world's leading database of music samples, interpolations, cover songs, and remixes. Buil ...

Quantitative Developer Risk Technology in London Millennium

Organizational Skills Organized, demonstrating thoroughness and strong ownership of work. Desirable Skills/Experience Experience with financial mathematics and risk modeling. Prior experience working directly with risk management/trading functions. Experience i ...

Quantitative Developer Risk Technology in London Millennium

Organizational Skills Organized, demonstrating thoroughness and strong ownership of work. Desirable Skills/Experience Experience with financial mathematics and risk modeling. Prior experience working directly with risk management/trading functions. Experience i ...

Graduate Software Engineer / Quant Developer / Quant Researcher Up to £180,000 + Bonus + Package

Graduate Software Developer / Quantitative Developer / Quantitative Researcher Kickstart Your Career in Technology & Quantitative Finance Just graduated and ready to launch your career at the intersection of technology, mathematics, and finance ? Join an < ...

Head of Software Architecture Java AWS AI

Head of Software Architecture (Java AWS Agentic AI) London / WFH to £130k Opportunity to progress your career working on a financial Tech for Good product in an impactful Head of Software Architecture role at a scale-up software house. The platform enables easier money transfer to people in emerging economies, ...

Head of Engineering Java, Javascript, Cloud, Healthcare

Head of Engineering - Java, Javascript, Cloud, Healthcare Up to £850 per day (Inside IR35) London / Hybrid (3 days onsite) 6 monthsMy client is a high-profile organisation seeking a Head of Engineering to lead a team of Software Engineering Managers, driving the development and transformation ...

Senior MuleSoft Engineer CloudHub & Microservices

N Consulting Ltd is seeking a Senior Mulesoft Developer based in London, England. The role requires MuleSoft certification and experience with CloudHub, Runtime Fabric, and Agile/Scrum methodologies. Candidates should hold a background in Java or other object-oriented programming languages and possess an underst ...

Remote Oracle CPQ Developer – UK

A global technology and business service provider is seeking an Oracle CPQ Developer for a fully remote role in the UK. The ideal candidate will have extensive Oracle CPQ experience and proficiency in SQL, Java/C#, and JavaScript. Responsibilities include providing programming support and integrating CPQ with en ...

Crypto Quant Developer: Low Latency Trading & AI

Harrington Starr is seeking a Quantitative Developer to join their Crypto trading desk. This role involves developing and optimising trading systems and algorithms for digital assets, with a focus on low-latency performance. Ideal candidates should possess strong Java skills and experience in algorithm ...

Crypto Quant Developer: Low Latency Trading & AI

Harrington Starr is seeking a Quantitative Developer to join their Crypto trading desk. This role involves developing and optimising trading systems and algorithms for digital assets, with a focus on low-latency performance. Ideal candidates should possess strong Java skills and experience in algorithm ...

Senior Java Software Engineer (Pricing API) – 5 days – London

Senior Software Engineer Day rate: £400 - £500 (inside IR35) – 6 month contract – London office, 5 days per week – Start: Now What You'll Be Doing Design and build scalable backend systems using Java and the JVM ecosystem Develop clean, maintainable code from product ...

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    Lead Java Application Developer Java Web Tech Jobs in London Job Search Guide, Trends and Insights