backend java developer jobs in London

You will contribute as a Backend Java Engineer, designing, implementing, and maintaining Java-based applications and microservices.

You will write clean and maintainable code, collaborate with cross-functional teams to deliver new features, and ensure the performance and quality of our applications.

You will successfully conduct day-to-day work and solve complex issues in your own specific technical engineering area, will share domain and industry knowledge between cross-functional teams and will serve as a guide to others by sharing and helping junior engineers in their duties, while reporting on status of difficult or high-level projects to local tech leadership via written or oral means.

You will be joining the small but scaling backend engineering team, you'll play a key role in building the services that power the payments platform.

You will be working with the lastest cloud natve technologies in a cross functional team and delivering real value to customers.

You will be joining the small but scaling backend engineering team, you'll play a key role in building the services that power the payments platform.

You will be working with the lastest cloud natve technologies in a cross functional team and delivering real value to customers.

#128640; Senior Java Engineer (Kafka, Spring Boot, Microservices) We’re hiring a Senior Java Engineer to build secure, real-time systems using Java, Spring Boot, and Apache Kafka. You’ll design scalable event-driven microservices, collaborate across the stack, and shape a platform used in mission-critical environments. If you’re a hands-on backend engineer passionate about distributed systems,...

Lead Software Engineer / Developer (Java Spring Boot AWS) London / WFH to £115k Are you a hands-on backend focussed Software Engineer with team leadership skills? You could be progressing your career in a Lead Software Engineer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. As a Lead Software Engineer you'll join a fairly new team...

Infastructure/ Backend Developer Contract Type: 6-month initial engagement Start Date: 1st December 2025 Location: Remote (UK-based) Rate: 350 per day (Inside IR35) Clearance Required: BPSS prior to start MUST HAVE NHS OR GOVERNMENT EXPERIENCE Role Overview The client is seeking a mid-to-senior level contractor with strong backend and infrastructure development experience. The successful...

You will be responsible for building scalable, high-performance Back End systems that power their banking platform.

About Prighter Prighter is a fast-growing LegalTech company building productised services and SaaS solutions for compliance with data protection as well as AI & digital governance regulations. With the mission to enable companies around the world to comply with regulatory requirements for their digital business, our services and SaaS solutions guide our global clients through the increasingly...

You will be responsible for building scalable, high-performance Back End systems that power their banking platform.

2 weeks ago Be among the first 25 applicantsThe Trading Infrastructure team is building a high-performance, front-to-back Trading Platform that supports multi-asset trading. The platform is designed to handle financial instruments with low-latency execution, robust risk controls, and seamless integration across trading, risk, operations, and finance workflows.The system is built with a modular...

You will drive continual improvement in your team’s automation frameworks and coverage while mentoring other SDETs in the team on industry leading technologies and test practices.

You will guide and participate hands-on in the team’s testing efforts to ensure quality of coverage, quality of code and quality of delivery.

Senior Backend Developer Have you got the right qualifications and skills for this job Find out below, and hit apply to be considered. Location: London - 1x a month Salary: Up to £95,000 (D.O.E) + benefits Fruition Group working with a leading Insurtech unicorn on a mission to transform the insurance industry. Their products have already generated millions in revenue, and now they're...

2* Senior Backend / Full Stack Ruby Developer – Profitable SaaS Scale-Up | Up to £85k + Excellent Benefits | Hybrid (London) I am working with a long term client of Opus, who is a profitable, investment-backed SaaS company with serious growth plans! We’re hiring Backend-focused Ruby Developers or Full Stack Ruby Developers with modern JavaScript experience (React, Vue, etc.) to join their...

Backend Engineer (Kotlin) – Hybrid (London) – Up to £95k #128176; Join a fast-growing cleantech company as a Backend Kotlin Engineer that is driving the global shift to clean, affordable energy through an integrated hardware and software smart-grid platform focused on residential EV charging. By leveraging data, AI, and strong industry partnerships, they connect cars, chargers, people, and energy...

Job description Java Full-Stack Developer Location: London (Hybrid) Salary: £85,000 – £90,000 + benefits I’ve partnered with an exciting tech firm who are building software that transforms how stakeholders make important decisions. What started as a consultancy has evolved into a SaaS platform that helps organisations cut through hundreds of pages of board packs and focus on what matters....

Job Title: BackEnd Technical Support Developer Location: London, UK Work Pattern: Hybrid – 3 days onsite, 2 working from home Salary: up to £50,000 per annum + on call bonus Job Position: Permanent Below covers everything you need to know about what this opportunity entails, as well as what is expected from applicants. Additional Info: This position does require you to be on call every 5th...

Job Description: - We’re looking for a hands-on Senior Software Developer / Technical Lead with strong expertise in Java and Spring frameworks to design, develop, and deliver end-to-end software solutions. - Operates effectively with minimal supervision, receiving general direction from team leads or senior developers. - Responsible for designing, developing, enhancing, debugging, supporting,...

You will be responsible for building scalable, high-performance Back End systems that power their banking platform.

#128640; Senior Java Engineer (Kafka, Spring Boot, Microservices) We’re hiring a Senior Java Engineer to build secure, real-time systems using Java, Spring Boot, and Apache Kafka. You’ll design scalable event-driven microservices, collaborate across the stack, and shape a platform used in mission-critical environments. If you’re a hands-on backend engineer passionate about distributed systems,...