51 to 75 of 89 Senior Java Developer Jobs in the UK

Skills: AI, LLM, REST APIs, AWS, SC Clearance, Python/Java We are looking for Senior Developer based Remotely in UK Security Clearance: Active SC Clearance is must have Job Description: The Senior Developer will design, build, test and operate software forming part … Client AI Enablement platform, with an initial focus on the Enterprise AI Gateway and the integration of AI models, developer tooling and enterprise controls. The role combines strong Back End and cloud engineering with practical generative AI engineering. The developer will build integrations between an AI Gateway ...

Location: London, UK Employment Type: Full-time Work Model: Hybrid About the Role The Senior Developer, Core Services role is focused on building and supporting highly scalable backend systems for live and Video on Demand streaming services. The developer will work primarily with Java and Spring … security, resiliency, and performance, along with strong collaboration across development, architecture, and other teams. In this role, you will: Develop and maintain components using Java and Spring, covering new features, fixes, enhancements, and existing functionality. Build well-tested, robust and reliable code, including handling edge cases and usability considerations ...

Position Description:At CGI, our Senior Java Developers play a vital role in building the secure, scalable digital solutions that help organisations innovate, transform and succeed. As we expand our software engineering capability across the UK, you'll take ownership of developing high-quality applications that solve complex … through this clearance. This is a hybrid position.Your future duties and responsibilities:In this role, you will design, develop and deliver robust, scalable Java applications that support critical client services and digital transformation initiatives. Taking ownership across the software development lifecycle, you'll use Java and Spring Boot ...

Searchability is assisting a Glasgow-based financial services consultancy by hiring a Senior Java Developer. You’ll work with Java 8+, Spring/Spring Boot, SQL and REST in a hybrid setup, with two days per week onsite in Glasgow. The role focuses on forming and onboarding ...

recruiting for a Senior Java Engineer On-site: 2 dpw in Leeds/Bradford Key skills: strong experience in Java and comfortable with TDD (test-driven development). Who We Are: We’re on a mission to close the world’s tech skills gap. We help organisations … bring to the table: Proven development experience of working as a Lead Engineer in a commercial development team with an expert understanding of Java and Javascript and wider experience in different tools and frameworks across the stack. Commercial experience working with agile methodologies. The ability to take clients wider ...

Version 1 is seeking an experienced Java Developer to design, develop, and maintain scalable Java applications. You will leverage AWS services to deploy cloud-based solutions, optimize database schemas, and support large-scale batch processing workflows. The role requires 5+ years of Java experience, strong knowledge ...

clients stay ahead in a rapidly evolving financial landscape, offering comprehensive solutions that drive business transformation and sustainable growth.We are looking for an experienced Java Developer to join a fast-moving delivery team building a new regulatory reporting platform for a global financial services firm.This … build focused on MiFID II transaction reporting, trade transparency, and instrument data — replacing a legacy system with a cloud-native microservices architecture (Java 17, Spring Boot, AWS, CI/CD).You’d be working closely with BAs, compliance SMEs, and QAs to deliver genuinely business-critical features.Key highlightsGreenfield build ...

Intec Select Ltd in Newcastle upon Tyne is seeking an experienced Java Developer to build and maintain scalable Java applications. You will contribute across the full SDLC, solving complex technical problems in a collaborative, technically focused environment. The ideal candidate has five+ years of Java development ...

## Senior Java Applications DeveloperApply: Hybrid: Belfast United Kingdom: Full time: Posted Today: 261002575**About the team:** **Event Master Central** is Citi’s centralized corporate action event repository and distribution platform that consolidates corporate action announcements and notifications from various vendors with cross-business operational process. … managing the end-to-end lifecycle of corporate Action events across the enterprise. **What you will do:*** Develop and implement complex software solutions using Java/J2EE, Spring Boot, and RESTful web services.* Design, develop, and maintain robust microservices adhering to architectural best practices.* Apply hands-on expertise ...

Cerillion in London is seeking a Senior Developer to join our Software Engineering team. You will design, develop, and deliver enhancements to Cerillion’s core BSS/OSS products, mentor juniors, and collaborate with architects and cross-functional teams to ensure robust, scalable systems. The role focuses … Java-based technologies, Spring Boot, RESTful APIs, microservices, and containerisation with Kubernetes/OpenShift, with responsibilities across Agile delivery and code quality. #J-18808-Ljbffr ...

Version 1 is seeking an experienced Java Developer to join our team across multiple UK locations. You will design, develop, and maintain scalable Java applications and contribute to cloud-based solutions using AWS services. The role requires proficiency in Spring, Hibernate, RESTful APIs, and working with relational ...

First Derivative is seeking an experienced Java Developer to join a fast-moving delivery team building a new regulatory reporting platform for a global financial services firm. You will work on MiFID II transaction reporting, trade transparency, and instrument data with a cloud-native microservices architecture (Java ...

Luxoft in the United Kingdom seeks a senior Java software engineer to contribute to a greenfield platform for information gathering and processing across a bank. You will write well-tested Java code, develop tests, and document your work. You will participate in a CI/CD workflow ...

Citi in London is seeking a Lead Java Developer to drive the development of real-time and on-demand risk systems within our global trading and risk framework. You will own the full development lifecycle, from architecture to production support, and collaborate with London-based traders, risk teams ...

Contract Senior Full Stack Developer – Java 21/React/AWS Contract Talan (part of the Talan Group) is an expert provider of professional services. Our vision and mission is to take positive action in a complex world for the future good of people and the environment … develop skills and gain experience which will enhance career prospects for life. Many who started their careers with us have rapidly progressed to more senior positions. No two days are the same, but we believe in a flexible approach to working which we know our employees value. ...

seeking someone to join our Equity Swaps Trading Technology team as a Senior Java/Scala Developer in ESTAR to work on our Scala-based processing engines for our Regulatory Reporting systems in a capital markets environment, dealing with global compliance regulations. Our Technology group support … platforms, with a focus on increased automation, efficiency, and optimization. While most of the codebase is written in Scala, we will also consider strong Java developers who are interested in learning Scala; many of our developers have successfully transitioned from Java into this Scala environment. In the Technology ...

team developing high-performance, low-latency platforms supporting critical trading and real-time processing workflows. The project focuses on building event-driven and reactive Java systems designed to operate at high frequency with demanding latency and throughput requirements.The environment combines advanced JVM performance engineering, concurrency, networking, and Linux optimization. … algorithms for performance-critical applications.- Develop and optimize networking components using TCP/UDP and low-latency communication techniques.- Work with low-level Java technologies such as JNI, Java Unsafe, and JNR-FFI where required for performance optimization.- Analyze application and Linux system performance, identify bottlenecks, and implement ...

well-established financial markets firm is seeking a Senior Java Trading Systems Developer to support the continued development of its electronic trading technology.This is a hands-on engineering position focused on building and improving systems used to manage orders and trading activity across multiple markets and venues. … work closely with front-office users, quantitative specialists and technology teams to deliver reliable, scalable and high-performance solutions.The role would suit an experienced developer from an electronic trading, capital markets or market-making environment who is interested in joining a growing and technically ambitious business. Responsibilities Design, build ...

architecture and technical execution of our core Enterprise Vendor & Market Data Services Registry Platform in Belfast.In this pivotal role, you will serve as the senior technical anchor for our Belfast engineering team—driving technical strategy, system architecture, and modern engineering practices while remaining hands-on with mission-critical Java … global engineering counterparts, product managers, and enterprise architects to deliver high-throughput data reconciliation, automated ingestion, and robust REST APIs.If you are an experienced senior backend technologist who thrives on building scalable distributed data systems, mentoring talented engineers, and leveraging modern GenAI tools (e.g., Devin, GitHub Copilot, Cursor ...

Morgan Stanley's Equity Swaps Trading Technology team seeks a Senior Java/Scala Developer to enhance Scala-based processing engines for regulatory reporting in a capital markets context. The role covers front-to-back trade lifecycle, intraday and end-of-day reporting, and ongoing automation. ...

lead greenfield initiatives, zero bureaucracy, collaborative culture and stunning office space! Our rapidly scaling FinTech Client is seeking a highly skilled Kafka Engineer/Java Developer to become part of their elite engineering team. You'll join a group of exceptionally talented professionals with experience from top-tier … from the ground up Play a central role in developing robust distributed systems Provide guidance and mentorship to junior engineers Skills Extensive experience in Java development Deep expertise in Kafka Commitment to writing high-quality, maintainable code Experience or strong interest in low-latency systems Bonus: Familiarity with Hadoop ...

Location: London; UKWork type: HybridSeniority: SeniorPrimary skill: JavaPosted: 2026-09-29Join EPAM as a Java Developer in a hybrid role based in London. Work on complex, data-intensive systems while collaborating with multi-national teams across the globe. You'll architect innovative solutions, mentor talented developers … hybrid working while advancing your career with a leading global provider of digital platform engineering and development services. ResponsibilitiesDesign, develop and maintain complex Java and Python based applications and services using industry-standard methodologies and toolsArchitect new systems or reuse existing systems that drive complex applicationsCollaborate with Product Managers ...

integrating with external trading venues and supporting real-time trade processing under strict SLA constraints. Team OverviewWe are building a dedicated squad in Bucharest (Java Developers + QA Automation Engineers) working closely with global teams. The team operates in 2-week sprint cycles, following Agile ceremonies (stand-ups, retrospectives … deployment, and post-go-live support. Responsibilities Responsibilities Design and deliver the FX Swaps clearing product within Global Clearing Solution Low-latency, high-throughput Java/Spring Boot microservices Ensure system compliance with performance, resilience, and security standards Integrate with external FX trading venues (e.g., FX Matching) Implement ...

Build scalable enterprise applications for leading UK clients in finance and healthcare. Responsibilities Design and develop high-performance Java/Spring Boot services Collaborate with cross-functional agile teams and client stakeholders Mentor junior developers and contribute to code quality standards Participate in architecture reviews and technical documentation Requirements … 5+ years of Java development experience Strong knowledge of Spring Boot, REST APIs, and microservices Experience with cloud platforms (AWS, Azure, or GCP) Excellent communication skills and client-facing experience #J-18808-Ljbffr ...

using CI/CD to increase our speed of delivery. What you will be doing You will be responsible for implementing AWS hosted, Java solutions with a focus on compute, storage, observability, reliability, and security. You will be responsible for designing and building out a hybrid cloud/… team of software engineers, bringing them on the cloud journey with a guiding hand. What you bring Experience of building enterprise grade applications using Java Strong knowledge of Functional programming in Java Experience working with AWS, having achieved AWS certifications. Experience of building applications with embedded CI/ ...