150,805+ Lead Java Application Developer Java Web Tech Jobs in London, UK — Local Employers Hiring June 2026

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Lead Software Engineer Cloud Platform Engineering

Out of the successful launch of Chase in 2021, we’re a new team, with a new mission. We’re creating products that solve real world problems and put customers at the center - all in an environment that nurtures skills and helps you realize your potential. Our team is key to our success. We’re people-first. We ...

C# .net Developer – Insurance

Overview C# .NET Developer – Insurance. Our client is an insurance underwriter in the City of London and is looking to grow its software development team. The ideal candidate will have strong C# development skills and be able to work in a technology-rich, agile environment. Responsibilitie ...

Senior Full Stack Engineer: Data Driven APIs & Cloud

Skills and Experience Particularly strong in Kotlin or Java. Experience in designing and implementing data-driven APIs. Exposure to frontend development, especially React.js, Tailwind, REDUX, and Typescript. Past project experience with large-scale web services ...

Senior Software Engineers Full stack in London Simple Machines

Skills and Experience Particularly strong in Kotlin or Java. Experience in designing and implementing data-driven APIs. Exposure to frontend development, especially React.js, Tailwind, REDUX, and Typescript. Past project experience with large-scale web services ...

Engineering Lead API Experience

Job DescriptionWe’re looking for an experienced Engineering Lead to join our API Experience team. You’ll lead and manage a team of engineers building the tooling and infrastructure that enables partners to securely integrate with Wise's API. This is a unique opportunity to shape the developer experi ...

Engineering Lead API Experience

Job DescriptionWe’re looking for an experienced Engineering Lead to join our API Experience team. You’ll lead and manage a team of engineers building the tooling and infrastructure that enables partners to securely integrate with Wise's API. This is a unique opportunity to shape the developer experi ...

MS Dynamics Architect

Job Title: MS Dynamics Architect Job Location: London, UK, Job Type: FTE/ Hybrid Note: <strong style=background-color: rgb(229, 241, 143); ...

MS Dynamics Architect

Job Title: MS Dynamics Architect Job Location: London, UK, Job Type: FTE/ Hybrid Note: <strong style=background-color: rgb(229, 241, 143); ...

Software Engineering Manager – Machine Learning

Location: London, UKTop Quant fund an experienced Engineering Manager / Tech Lead Manager to head a small, high-performing team focused on core ML infrastructure — distributed model training, LLM hosting/fine-tuning, and scalable deployment systems.You’ll own technical directio ...

Software Engineering Manager – Machine Learning

Location: London, UKTop Quant fund an experienced Engineering Manager / Tech Lead Manager to head a small, high-performing team focused on core ML infrastructure — distributed model training, LLM hosting/fine-tuning, and scalable deployment systems.You’ll own technical directio ...

Senior Backend Engineer, Banking Connectivity

A global financial tech company in London is seeking a Senior Software Engineer to build critical bank integrations for their Banking Connectivity platform. The successful candidate will work on backend systems using Java and engage in ensuring reliable data flows across financial institutions. This role offers ...

Senior Backend Engineer, Banking Connectivity

A global financial tech company in London is seeking a Senior Software Engineer to build critical bank integrations for their Banking Connectivity platform. The successful candidate will work on backend systems using Java and engage in ensuring reliable data flows across financial institutions. This role offers ...

Senior Software Engineer: Legacy Modernization

Focus on WD is seeking a Senior Software Engineer to join a leading publishing organisation in Greater London. The role involves enhancing a legacy application and building a new one, combining hands-on engineering with strategic oversight. The ideal candidate should have strong Java skills, experience ...

Quant Developer C++ in London Quant Capital

Job Opportunity in London Are you interested in financial modeling? Here is a unique opportunity to be part of a small team where you will have significant responsibilities from day one. Our client is based in London and is looking for individuals with expertise in the following areas: <u ...

Quant Developer: Algo Trading & Financial Modeling (London)

Job Opportunity in London Are you interested in financial modeling? Here is a unique opportunity to be part of a small team where you will have significant responsibilities from day one. Our client is based in London and is looking for individuals with expertise in the following areas: <u ...

Senior Software Engineer

Build high-performance quant trading platforms in Golang - 1 day per week in their London office Over the past few years, while much of the industry has focused on maintaining legacy platforms, this specialist sports analytics technology firm has been quietly building and scaling a new generation of ...

Manager, Sales Engineering

Role Overview Checkout.com is looking for an enthusiastic and talented Sales Engineer to join our fast‑growing team in London to support our clients with integrating our revolutionary online payments platform. This is a mid‑level position, and the successful candidate will be responsible ...

Software Engineer III Fullstack (Java, React, Python and AI) Engineer

Join us to shape the future of web applications with innovative AI-driven solutions. You will have the opportunity to work across both backend and frontend technologies, collaborating with diverse teams to deliver impactful customer and internal platforms. Your expertise will help us build reliable integratio ...

Software Engineer III Fullstack (Java, React, Python and AI) Engineer

Join us to shape the future of web applications with innovative AI-driven solutions. You will have the opportunity to work across both backend and frontend technologies, collaborating with diverse teams to deliver impactful customer and internal platforms. Your expertise will help us build reliable integratio ...

Senior C# Developer.Net AWS Finance

Senior C# Developer / Software Engineer (C# .Net AWS) London to £90kAre you a technologist who enjoys contributing to technical discussions and using the best tool for the job?You could be progressing your career at a global, financial Market Data provider whilst enjoying a range of perks ...

Senior C# Developer.Net AWS Finance

Senior C# Developer / Software Engineer (C# .Net AWS) London to £90kAre you a technologist who enjoys contributing to technical discussions and using the best tool for the job?You could be progressing your career at a global, financial Market Data provider whilst enjoying a range of perks ...

Senior Software Engineer Python / hx Renew

* Consult with users to determine hardware, software or system functional specifications, manage interaction between the systems and other technical support areas, and define technical requirements and coordinate team resources to solve problems.* Guide the team to tackle problems at differentiating levels of co ...

Senior Software Engineer Python / hx Renew

* Consult with users to determine hardware, software or system functional specifications, manage interaction between the systems and other technical support areas, and define technical requirements and coordinate team resources to solve problems.* Guide the team to tackle problems at differentiating levels of co ...

Software Engineer Intern — Visa Sponsorship + Fast Growth

A forward-thinking trading technology firm in London is seeking interns to join their team. This role offers exposure to projects in trading technology, hardware acceleration, and systems programming. Interns will work with a diverse tech stack, including Java, Python, TypeScript, and Kubernetes, while prioritiz ...

Senior Product Engineer — AWS, TypeScript & Node.js

Java Script Works is seeking a Senior Product Engineer in London, United Kingdom, to work in an AWS cloud-native environment. In this full-time role, you will leverage your expertise in NodeJS, Typescript, and Prisma, contributing to the team’s future direction.With a salary range of £100K - 120K, this ...

Staff Web Platform Engineer

Role: Staff Software Engineer, Web Platform Location : London, hybrid We are working with a household-name business as it continues to invest heavily in becoming a digital-first, engineering-led organisation. They are now looking for a Staff Software Engineer to join ...

Engineering Lead (API Experience)

Compensation: GBP 100,000 - GBP 135,000 - yearly Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. Whether people and businesses are sending money to another coun ...

Tech Services Team Lead — Lead Innovative Tech Support

A leading SaaS company in Greater London is seeking a Tech Services Team Lead to manage and innovate within their technical delivery team. You will oversee a multidisciplinary group, ensuring the implementation of complex projects while harnessing AI to enhance efficiencies. The ideal candidate has over 7 years ...

Senior Software Engineers Full stack in London Simple Machines

Skills and ExperienceParticularly strong in Kotlin or Java.Experience in designing and implementing data-driven APIs.Exposure to frontend development, especially React.js, Tailwind, REDUX, and Typescript.Past project experience with large-scale ...

Senior Full Stack Engineer: Data Driven APIs & Cloud

Skills and ExperienceParticularly strong in Kotlin or Java.Experience in designing and implementing data-driven APIs.Exposure to frontend development, especially React.js, Tailwind, REDUX, and Typescript.Past project experience with large-scale ...

Lead Developer

Contract: Permanent, full-time | Location: London (hybrid-working) | Closing Date: 31 May 2026 About the role The Lead Developer is part of a small innovation team responsible for bringing in-house a world‑leading, cutting‑edge AI‑driven music and language teaching ...

Lead Developer

The Lead Developer is part of a small innovation team responsible for bringing in‑house a world‑leading, cutting‑edge AI‑driven music and language teaching/analytics product. This highly skilled role focuses on reviewing, improving, and productionising our current pilot codebase while driving a roadmap of ...

Lead Developer

Requirements 12+ years of hands-on backend software engineering experience ,Support the organisation’s AI adoption journey. Develop and enhance intelligent solutions using LLMs, LangChain/LangGraph, and agentic AI frameworks ,Establish engineering best practices for safe, sc ...

Lead Developer

Lead DeveloperSheffield Are you looking for an exciting new role? Are you looking to make the next steps in your developer career? My client is looking for a Lead Developer to join their team. As Lead Developer you will be responsible for the overall architecture and development of the pla ...

Lead Developer

Lead DeveloperSheffield Are you looking for an exciting new role? Are you looking to make the next steps in your developer career? My client is looking for a Lead Developer to join their team. As Lead Developer you will be responsible for the overall architecture and development of the pla ...

Fintech Data Architect — SQL/.NET & Modern Stack

Java Script Works is looking for a Data Architect to join their Fintech team located in London, United Kingdom. This full-time role offers a competitive salary of up to £70K, entailing responsibilities related to data architecture and system designs. The position involves utilizing a range of technolog ...

Senior Backend Engineer, Payroll Foundations Hybrid Equity

A tech company in the HR sector is seeking a Senior Backend Engineer to join their Payroll Foundations team. This role involves building and maintaining backend systems for payroll processing, ensuring accuracy and reliability. Candidates should have strong experience in backend systems, proficiency in Kotlin or ...

Backend Engineer, AI Platform — Build Scalable AI Tools

A tech company in Greater London is looking for a talented Backend Engineer to join their AI Platform team. The role involves designing and developing backend services for AI capabilities, ensuring reliability and scalability. Ideal candidates will have over 4 years of experience in backend engineering, particul ...

Test Data Platform Lead (Self Service Testing)

A leading tech company is seeking a Test Data Manager to build a self-service testing platform. The role involves defining testing strategies, collaborating with teams, and enhancing test coverage. You will utilize your automation skills in Python or Java and engage with cloud and data platforms such as AWS and ...

Fintech Data Architect — SQL/.NET & Modern Stack

Java Script Works is looking for a Data Architect to join their Fintech team located in London, United Kingdom. This full-time role offers a competitive salary of up to £70K, entailing responsibilities related to data architecture and system designs.The position involves utilizing a range of technologi ...

Senior Software Engineer Front office

Java Electronic Trading Engineer – Front office London – Hybrid The company This is an unmissable opportunity for an experienced Java Electronic Trading Engineer to join one of the leading institutional digital asset firms in the market. With a global footprint and a platform sp ...

Senior Software Engineer in London Edgefolio

Senior Software Engineer London, United Kingdom Posted 10 months ago This is a job posted by our partner Jooble Tech stack web Python Software Engineer Django Responsibilities Responsible for the full ...

Principal Software Engineer

About the Role We are seeking a Principal Software Engineer based in London to provide technical leadership across backend services supporting our global payment gateway system. You will design and evolve core platform capabilities, guide architectural decisions across microservices, and ...

Senior Solution Architect/Developer to writes production code with end to end ownership from architecture through implementation

S.i. Systems client is looking for a Senior Solution Architect/Developer to writes production code with end to end ownership from architecture through implementation.Remote contract across Canada - 37.5 hours/week - must have own laptop to work off of MUST HAVES:Solution architect ...

Senior Solution Architect/Developer to writes production code with end to end ownership from architecture through implementation

S.i. Systems client is looking for a Senior Solution Architect/Developer to writes production code with end to end ownership from architecture through implementation.Remote contract across Canada - 37.5 hours/week - must have own laptop to work off of MUST HAVES:Solution architect ...

Graduate Software/Quantitative Developer

Role: Graduate Software Developer / Quantitative Developer / Quantitative ResearcherClient: Prestigious Buy-Side FirmCompensation: Up to £180,000 + Bonus + BenefitsLocation: London (Hybrid) Overview Just graduated and ready to launch your car ...

Senior DevOps Engineer

Your newpany This is a prestigious financial services client with an office in central London.Your new role The client is looking for someone who has a strong AWS background to work in a team dealing with cloud onboarding, cloud security and vulnerabilities.What you'll ...

Senior DevOps Engineer

Your newpany This is a prestigious financial services client with an office in central London.Your new role The client is looking for someone who has a strong AWS background to work in a team dealing with cloud onboarding, cloud security and vulnerabilities.What you'll ...

Senior Software Engineer (Identity & Financial Crime)

Requirements We're looking for passionate and driven engineers to join our Customer Identity & Fincrime team We’re open-minded when it comes to hiring and we care more about aptitude and attitude than specific experience or qualifications For the most part we code in Jav ...

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