senior java backend developer jobs in London

Project descriptionJoin the Equity Accelerator programme to modernize critical Prime Finance Equities trading platforms. The role focuses on building and evolving highly scalable backend systems using Kotlin and Java, with event-driven, cloud-native architectures. Engineers will work directly on business-critical production systems while contributing to...

Gravitas Recruitment Group (Global) Ltd is recruiting for a back-office Java services development role in London. The job focuses on development, maintenance and enhancement of services supporting the Back Office at our Financial Services client, with 3 days per week on site in City of London.The team interacts with IT and business stakeholders; cloud-first...

JPMorgan Chase & Co. in London is hiring a Software Engineer III to contribute to end-to-end cloud-native microservices in the International Consumer Bank. You will work with a distributed team on fraud prevention, identity services, money transfers, card payments, lending and onboarding to build secure, scalable software.The role emphasizes strong Java...

WE ARE: At Adaptive, we are a financial consulting firm that partners with capital, commodity, and digital market participants. We value differentiation through technology. Our experienced teams design and deliver complex front-office technology solutions using our proven accelerators to create long-term competitive advantage. Our clients include the...

Grid Dynamics/JUXT is partnering with a Tier 1 investment bank on a strategic initiative to build its next-generation FX Risk Platform: consolidating risk management capabilities into a modern, scalable architecture and decommissioning multiple legacy risk applications. This role builds the platform's FX Options end-of-day Official Valuation capabilities,...

Location: UK (Hybrid / Onsite as required)Experience: 2–5 yearsRole Type: Fixed Term ContractOverviewWe are building a modern Data Fabric platform that enables the ingestion, transformation, and serving of large volumes of data as high‑quality, reusable data products for analytics, reporting, and operational use cases.The platform operates across cloud...

A leading health retailer in London is seeking a Senior Backend Engineer to develop tools that enhance store design and optimize customer experiences. The role involves designing scalable backend services using Java and Spring within a hybrid working environment. Strong experience in backend development, API management, and databases is essential. This...

About ARQARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our product, culture, and growth. If you’re excited by big challenges,...

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...

**Description** Working in a permanent feature team, you’ll be developing knowledge of aspects of the associated platform across the disciplines of business, applications, data and infrastructure. You’ll also be liaising with principal engineers, architects in the domain and other key stakeholders to understand how the platform works and how it supports...

A technology-driven company seeks a Java Backend Lead to take charge of backend systems' architecture and delivery. You will guide a team of developers, ensuring high code quality and working on modernizing systems. Candidates should have at least 10 years of Java expertise and strong leadership skills. Key responsibilities include designing microservices...

KX Systems, Inc. is seeking a Senior/Intermediate Java Engineer to join its R&D team in a hybrid London/Newry/Belfast role. Focus on backend and middleware development with Java 17 and Spring, integrating with kdb+ in a distributed, high-availability system.The incumbent will implement authentication/authorisation, security best practices, and contribute to...

A global financial services organisation is seeking a Senior Java Engineer to contribute to a vital enterprise platform. This hands-on role involves not only development but also shaping technical standards and collaborating with senior engineers to enhance platform quality. Ideal candidates should have strong experience in Java backend development and the...

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...

Wise London is seeking a passionate Backend Software Engineer to join the Pricing Core team. You will design, develop, test, and maintain backend services in Java using the Spring Boot framework, deployed on cloud infrastructure (AWS).The role focuses on building event-driven architectures with Apache Kafka for asynchronous processing of financial events...

Backend Java Developer Location: Birmingham (Hybrid) Employment: Fixed Term Contract Salary: £50,000 – £65,000 base (dependent on experience) If your idea of backend engineering is more than CRUD APIs and microservices boilerplate — this role is for you. We’re building the core backend services of a Data Fabric platform that governs data access,...

Principal Backend Engineer – Java Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Build scalable backend solutions that help shape the future of financial services. The Role Capco is growing our Engineering team, and we’re looking for experienced Principal Backend Engineers with strong Java skills and a passion for...

Overview The Senior Java Engineer at NCG will play a pivotal role in designing and implementing high-quality software solutions within the ITES sector. This role is crucial in driving technical innovation and ensuring the robustness, performance, and scalability of applications. Collaborating with cross-functional teams, the engineer will contribute to the...

Java Developer - Up to 55K We're working with a global technology consultancy delivering secure, large-scale digital transformation programmes across multiple industries. They're looking for a Java Developer to join a growing engineering team building modern, cloud-based microservices platforms. This role is ideal for a developer who wants to level up...

Rightmove is seeking a Senior Backend Engineer to design and deliver scalable backend features for the platform. You will work within autonomous, cross-functional teams, shaping solutions for millions of users and thousands of agents.You will own technical decisions, focus on performance, and collaborate with product, design, and testing peers to ensure...