java developer jobs in London

Tech Stack: Java and low-latency, JVM engineering, FX, eFX, Crypto, hedging and risk-management systems, Aeron, FIX connectivity, Linux, Multithreading, Harrington Starr have partnered with an innovative to Software Developer specialising in Crypto, FX and eFX currently developing high-performing trading systems. We’re looking for a skilled Java or Quant...

Mandatory skills: Java, Spring boot and **Solace**   **Skills** Design, develop, and maintain high-quality **Java with Solace** / ION / Python applications using SpringBoot. Proficiency in Java core 8+ is a must. Proficiency in Junit. Implement Solace publication/subscription Implement and optimize RESTful APIs and microservices. Integrate with...

Fullstack Java Developer2026-09-18T00:00:00LondonGreater LondonGBEC2V 8Any2026-12-17T07:02:20.303hackajob is partnering directly with Atos to hire for this role. Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and...

Who We Are: We are a fast growing business and technology consultant company co-founded in 2019. We offer a custom‑tailored, white‑glove engineering service fit for our clients, because a digital transformation is more than just technology. With a successful track record of being a preferred vendor for Fortune 500 companies and as a trusted partner for...

Senior Java Analyst Developer / Technical ConsultantQuant Capital is urgently looking for a Java Analyst Developer / Technical Consultant to join our high profile client.Our client is a global trading platform software business. Its products are used globally by most asset managers and pension funds. They are well known in the fintech space and have offices...

Responsibilities Development & Coding: Collaborate with lead and also Lead the development with mid level developers and implementation of scalable and high-performance Java-based applications. (This post will have more than 80% focus on this). Architecting Solutions and design: Collaborate with cross-functional teams to design and implement robust software...

Job Title: **Senior Java Developer with Solace** Job Location: **London, UK (Hybrid)** Job Type: **Permanent** **Mandatory skills:** Java, Spring boot and **Solace** **Skills** Design, develop, and maintain high-quality **Java with Solace** / ION / Python applications using SpringBoot. Proficiency in Java core 8+ is a must. Proficiency...

Mandatory skills: Java, Spring boot and **Solace** **Skills** Design, develop, and maintain high-quality **Java with Solace** / ION / Python applications using SpringBoot. Proficiency in Java core 8+ is a must. Proficiency in Junit. Implement Solace publication/subscription Implement and optimize RESTful APIs and microservices. Integrate with various...

**Skills** Design, develop, and maintain high-quality **Java with** **Solace** / ION / Python applications using SpringBoot. Proficiency in Java core 8+ is a must. Proficiency in Junit. Implement Solace publication/subscription Implement and optimize RESTful APIs and microservices. Integrate with various internal and external systems. Write unit and...

Skills Design, develop, and maintain high-quality Java with Solace / ION / Python applications using SpringBoot. Proficiency in Java core 8+ is a must. Proficiency in Junit. Implement Solace publication/subscription Implement and optimize RESTful APIs and microservices. Integrate with various internal and external systems. Write unit and integration...

Job Title: **Senior Java Developer with Solace** Job Location: **London, UK (Hybrid)** Job Type: **Permanent** **Mandatory skills:** Java, Spring boot and **Solace** **Skills** Design, develop, and maintain high-quality **Java with Solace** / ION / Python applications using SpringBoot. Proficiency in Java core 8+ is a must. Proficiency in...

**Role: Senior Java Developer with Solace – London, UK - Hybrid - Permanent**   Mandatory skills: Java, Spring boot and **Solace**   **Skills** Design, develop, and maintain high-quality **Java with Solace** / ION / Python applications using SpringBoot. Proficiency in Java core 8+ is a must. Proficiency in Junit. Implement Solace...

Jobs for Humanity is partnering with FIS Global to build an inclusive and just employment ecosystem. Therefore, we prioritize individuals coming from the following communities: Refugee, Neurodivergent, Single Parent, Blind or Low Vision, Deaf or Hard of Hearing, Black, Hispanic, Asian, Military Veterans, the Elderly, the LGBTQ, and Justice Impacted...

Senior Fullstack Software DeveloperOur Client is a relatively young company but growing quickly in the world of financial technology solutions.They are now looking to recruit a Senior Fullstack Software Developer with at least 5 plus years expertise.The ideal candidate will have great problem solving and communication skills and be comfortable with fast...

Job Description **About Citi** As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an international team encompassing a broad range of teams, roles, and cultures, and we invite you to come...

About the Role & Key Responsibilities We are looking for a highly motivated, independent, and skilled engineer to build the mobile application service layer (backend for front end) for the upcoming iOS and Android travel mobile application Application Solutioning • Architect and design the rails based on domain driven design in collaboration with...

We are looking for an experienced **Java Fullstack Developer** . Must-Have Skills: • Strong experience in **Java, Spring Boot & Microservices** • Good hands-on experience with **React.js & Redux** • Ability to work **independently** on development tasks Nice to Have: • UI/UX experience • **Figma** knowledge

# Java Backend Developer,November 30, 2025### Job Description**On behalf of our client, we are seeking a Java Backend Developer – London, UK (Full-Time Permanent Role).**Our client, a fast-growing technology organisation, is looking for a skilled Java Backend Developer to build secure, scalable backend services and high-performance APIs supporting modern...

Senior Java Developer with Solace **Location:** London, UK **Job Type:** Permanent **Work Mode:** Hybrid Experience Required - 7+ years of relevant experience - Experience in systems analysis and programming of software applications - Experience in managing and implementing successful projects - Working knowledge of consulting/project management...

Role: Software Developer (Mid-Level) Location: London Salary: Competitive + Compensation Package The role On behalf of a highly regarded fintech organisation, we are partnering to find an experienced Software Developer to join their engineering team in London. This role is suited to an engineer with a strong foundation in building production systems who is...