java web developer jobs in London

This is a hands-on digital delivery role responsible for leading a major website and member portal transformation programme. You'll manage digital platforms, agency partners and user experience improvements to enhance member engagement and support wider digital growth. Client Details This is a not-for-profit B2B membership in London. Description Lead the...

We are seeking a highly skilled Senior Java Engineer to join a collaborative Agile engineering team delivering scalable, cloud-native solutions. This role is ideally suited to an experienced engineer who is passionate about software craftsmanship, enjoys knowledge sharing, and thrives in a highly collaborative environment where pair programming is a...

Junior Ruby Developer – HTML5, Rails Javascript, TDD Quant Capital is urgently looking for a Junior Ruby Developer to join our high profile client.Our client is in this year’s fintech50 and well known to disrupt the global payments and Foreign exchange markets.The position is for a hands Junior Ruby Developer to build new and maintain existing Rails...

C++ Engineer Small Trading Firm 100k-130k + bonusAmsterdam RELOCATION PACKAGE, NO experience of finance needed.Quant Capital is urgently looking for a Software Engineer with C++ or Java experience to join our high profile client.Our client is a well known global Prop Trading firm. They like technology especially the opensource variety as well as scalability...

Role: KDB Developer Type: Contract (3 Months with potential extension) Location: London, UK Working Model: Hybrid (3 days per week in office) Core Requirements: 10+ Years KDB+/q: Advanced development, query optimization, and L3 support in large-scale production environments. Architecture: Deep knowledge of time-series data modeling, Tickerplant, and...

Global is seeking a Python Developer to join our established team in Greater London. You will build and scale APIs, web services, and internal systems powering Global Player and public radio sites, collaborating across cross-functional teams to deliver robust software.You’ll contribute to a culture of code reviews, testing, and continuous learning, with...

Placements24 in London-based offices offers an Apprenticeships & Trainee program as Web Developers, providing hands-on experience in front-end and back-end work. You will be mentored by experienced developers, gaining exposure to diverse client projects in a hybrid environment with office collaboration and remote flexibility.The program emphasizes coding...

ALTECH GROUP LTD seeks a talented freelance Web Developer to join our team. You will work remotely on projects that emphasize React, GSAP/Motion Tech, and CMS platforms (WordPress or Craft CMS).The role is project-based with potential for ongoing engagements as we expand our client portfolio. The ideal candidate has a strong development portfolio,...

Adecco Group UK & Ireland is seeking a Web front-end specialist for a 6-month contract in London. The role involves using our client’s data tools to locate and utilise data related to health authorities, collaborating with technical and clinical staff to automate authoritative sources and evaluate them using data processing techniques.Responsibilities...

Support Developer- Banking Quant Capital is urgently looking for a Support Developer with C# skills to join our high profile client.Our client is a leading software provider to the front office wealth and asset management market with customers across the globe. Their product is completely tech driven and they have been at the pinnacle of brokerage and trade...

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 products in use by hundreds of millions of consumers around the world. We...

A leading retail forum in London is seeking a dedicated Wordpress Web Developer to take full ownership of their website management. You will work in an office-based environment and focus on improving site performance, developing a platform for information sharing, and optimising content display. The ideal candidate possesses strong Wordpress knowledge and...

**Core Java Engineer** **Hybrid Working – London OR Edinburgh– 2 days a week on site.** **Financial Services** Lorien's leading banking client is looking for **Core** **Java Engineers** to join a high-performing engineering team delivering customer-facing payment and card technology solutions. This is an opportunity to work on a large-scale digital...

**About the Role** As a Technical Web Specialist, you’ll be the connective tissue between our web team and the rest of the business. This role exists because great websites aren’t just built — they’re coordinated, prioritised, and protected from chaos. Sitting at the intersection of Marketing and Web Development, you’ll own the intake and...

C# ASP.NET Developer – Fintech50Quant Capital is urgently looking for a C# ASP.NET Developer join our high profile client.My client is a growing global Fintech business and market leaders in the invoice finance space. They are currently expanding their development team with an additional 3 developers in the City of London.The ASP.NET MVC Development role...

A leading financial technology environment is looking for a Senior Java Low-Latency Developer to join a 12-month contract in London, working hybrid three days a week. You'll be part of a global engineering function delivering technology where performance, resilience and reliability are critical. The role focuses on building and enhancing high-performance...

Location: LondonContract: 12 monthsWorking Pattern: Hybrid - 3 days per week onsitePositions: 3We are recruiting experienced Senior Java Low-Latency Developers to design and develop high-performance trading, exchange connectivity and Direct Market Access platforms.This is a hands-on senior engineering role focused on building resilient, scalable and...

Java Developer with SQL Server – Central London Our Client is looking to recruit a seasoned professional with 5 plus years experience in developing with Java as a backend Developer with SQL Server. You will have a good understanding of Data Structures and Algorithms. In addition to the Java and SQL Server development skills you should working knowledge of...

CMC Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence is critical. You'll design and build...

London, United Kingdom | Posted on 04/08/2026Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens.With a strong commitment to user-centred design and agile delivery, we...