Java Full Stack Engineer jobs in London

*Role Purpose** Deliver high‑quality Java‑based services and cloud‑hosted solutions on AWS. Contribute to design, development, testing, and optimisation of digital applications while following established engineering standards. Support senior engineers, collaborate with multidisciplinary teams, and

*Job Description:** We are looking for a skilled *Java Full Stack Developer** to design, develop, and maintain scalable web applications. The candidate will be responsible for both backend and frontend development, ensuring high performance, responsiveness, and seamless user experience. The role req

Role: Full Stack Developer work from London office & Permanent role 5days/week onsite Job Summary We are seeking a highly skilled Full Stack Developer with strong experience in Java, Spring Boot, Kafka, and API Management platforms (Apigee) to build and support scalable, secure, and high-performance

*Role Purpose** Lead the design, development, and optimization of Java‑based services and cloud‑native solutions on AWS. Provide technical leadership, mentor engineers, establish engineering standards, and ensure the delivery of secure, scalable, and maintainable digital services aligned with DDaT e

Join us as a Java Full-Stack Developer within the Core Risk team and be involved in the rebuild and migration to new technologies of legacy components. This is a great role for a full-stack developer looking to make an impact, be inquisitive and comfortable in challenging the current set up. To be s

🛠️ Required Skills Backend Strong experience in *Java, Spring Boot, Spring MVC** Experience with microservices architecture Knowledge of REST APIs and web services Frontend Proficiency in *JavaScript, HTML, CSS** Experience with frameworks like *React / Angular / Vue.js** DevOps & Cloud: Experi

About Us *At FDJ UNITED, we don't just follow the game, we reinvent it.** FDJ UNITED is one of Europe’s leading betting and gaming operators, with a vast portfolio of iconic brands and a reputation for technological excellence. With more than 5,000 employees and a presence in around fifteen regulate

*About Us:** Founded on the grounds of innovation – iXceed Solutions is an ISO certified, leader in Talent and Digital recruitment solutions, serving Fortune 100 companies globally. *🌟 About the Role** We are looking for a *talented Java Full Stack Developer** to join our growing technology team. I

### Who you are Experience with developing external APIs A continuous improvement mentality, experience with coding using AI Identifies development risks and builds mitigations Around 5 years of Java development experience Strong concurrent/multithreaded programming skills Experience with asynchrono

We look for character over credentials: We’re a specialist financial technology company transforming B2B credit ( website ) We’re backed by top European and American VCs including Dawn Capital, Octopus Ventures, Talis and Expa Founded in 2020, we are licensed and operating across the UK, Europe, US

Requirements Must have: - Strong experience building low latency Java systems within electronic trading. - Experience with distributed messaging technologies (Kafka, Solace, etc.). - Strong understanding of event-driven architectures and real-time systems. - Cloud deployment experience (AWS, Kuberne

We're on a mission to make it simple and affordable for every home in the UK to be heated and powered by clean, green electricity. Our customers are the installers who are at the forefront of this transition, but who have historically been overlooked and left struggling with outdated, ineffectual so

Stoneborn Technologies builds the operating system for modern re/insurance with the mission to automate the infrastructure of risk capital. We are a small team of former Palantir and Swiss Re engineers building AI-native systems that turn the manual backbone of insurance into transparent, code-defin

We are using AI to accelerate due diligence and deepen insights for Private Equity funds. We are hiring a full stack engineer who is comfortable contributing to all layers of the application and developing features end to end. *About Capsa AI** Empowering Private Equity with Advanced AI – Capsa AI i

*Team:** Technology *Location:** This is a hybrid role based out of our London office in Monument, with an expectation to be in the office 2 days per week. *Salary Range:** £55,000 - £60,000 per annum *Role Type:** Full-Time, Permanent *Start date:** As soon as possible *Visa / Sponsorship Available

*Full Stack Developer** *Full time** *London, UK ( 5 days onsite a week )** *Payments/Banking Domain experience is Mandatory** *Job Summary** We are seeking a highly skilled *Full Stack Developer** with strong experience in *Java, Spring Boot, Kafka, and API Management platforms (Apigee)** to build

Hadean is a deep-tech company building cutting-edge distributed computing technology that powers scalable, secure, and interoperable digital environments. Our platform enables real-time simulation and training, mission rehearsal, command & control and digital twin capabilities - transforming the

*About us** We are champions of rail, inspired to build a greener, more sustainable future of travel. Trainline enables millions of travellers to find and book the best value tickets across carriers, fares, and journey options through our highly rated mobile app, website, and B2B partner channels. *

*Hiring: Full-Stack Engineer (Growth)** We are working with a fast-growing, VC-backed startup that’s redefining the future of video intelligence with an AI-native platform. With strong early traction and significant funding secured, the team is now entering an exciting phase of rapid scale. *The Opp

*Full-Stack Developer (Payments / Card Processing / iGaming)** We are looking for an experienced developer to integrate *card payment iFrames** across *iGaming and merchant websites** using our payment partners. This is a *hands-on integration role** , not a generic dev position. *Key Responsibiliti