1 to 25 of 33 Senior Java Developer Jobs in London

Title: Senior Java Developer - Rates Intraday Risk Technology Job Code: 14911 Country: GB City: London Skill Category: IT\Technology Job Title: Senior Java Developer – Rates Intraday Risk Technology Corporate Title : Associate Department :Information Technology Location: London (Hybrid) Company overview Nomura is a financial services … platform from design through to implementation and rollout. Skills, experience, qualifications and knowledge required Mandatory: Bachelor’s degree in computer science or equivalent Experienced Java developer with good knowledge of Java frameworks (Spring) and an understanding of the stages of the software development lifecycle, version control, unit ...

Senior Java Developer Department: Platform Delivery Employment Type: Permanent - Full Time Location: London Description We are looking for an experienced Senior Java Developer to join the engineering team at Xantura, helping to design, build, and evolve our cloud-based data and analytics platform used … local authorities and public sector organisations across the UK. This is a hands-on senior engineering role focused on developing scalable backend systems, improving platform reliability and performance, and contributing to the ongoing evolution of our architecture, engineering standards, and development practices. The role would suit someone who enjoys ...

Role: Principal/Senior Java Developer – Elite FinTech Rate: Up to £750 per day Location: London Working Pattern: Hybrid Contract: Contract The Role They are looking for an exceptional Principal/Senior Java Developer to join a high-calibre engineering team, working alongside some … work on high-scale, business-critical technology at the intersection of financial services and next-generation digital assets. Requirements Strong commercial experience with Java Extensive experience developing server-side Java applications Strong software engineering fundamentals Experience working on complex, high-scale systems Strong understanding of application architecture ...

Role Role : Principal/Senior Java Developer – Elite FinTech Rate: Up to£750 per day Location :London Working Pattern :Hybrid Contract :Contract They are looking for an exceptional Principal/Senior Java Developer to join a high-calibre engineering environment, working alongside some … industry's strongest developers, architects and technical leaders. Responsibilities Design and develop high-performance server-side Java applications Work across both greenfield and complex brownfield environments Take ownership of significant technical challenges and drive solutions through to completion Collaborate with highly experienced engineers, architects and product specialists Translate complex ...

Senior Java Developer (AWS, Microservices) Travel - Sussex Daily rate: £550 - £700 (inside IR35) Duration: 3 - 6 months Hybrid: 1 - 2 days Start: ASAP My new client is looking for a Senior Java Developer (AWS, Microservices) to join the team on a contract basis. … will play a key role in designing, developing, and maintaining secure, scalable, and cloud-native Java microservices, primarily hosted on AWS, integrating with both internal and third‐party systems. Collaborating closely with other technical leads, platform engineers, QA, and product teams, you will follow best practices in software design ...

delivering innovative and high-quality technology solutions while supporting the continued growth and development of our professional workforce. Role Overview: We are seeking a Senior Java Developer to join our Core Platform Team. This role is critical to building and maintaining the scalable backend infrastructure … back office system platform, ensuring it can support high-concurrency gameplay, real-time interactions, and a distributed microservices architecture. As a Senior Java Developer , you will architect and develop backend systems that power our games, player management, reporting tools, and third-party integrations. You will work closely ...

Avanti Recruitment is recruiting for a Senior Java Full Stack Developer to join an established, international software company based in Central London. The company develops complex, business-critical enterprise software used by major organisations internationally. Its products support high-volume transactions and essential business operations, giving engineers … opportunity to work on technically challenging, large-scale applications. This is a hands-on development position with a strong emphasis on Java, Spring Boot, REST APIs and microservices, alongside commercial frontend development using Angular, React or Vue. The company is continuing to modernise its established software platforms, creating ...

Java Developer – Low-Latency Trading Systems Location: London Working arrangement: Hybrid – 3 days per week in the office We are looking for a Java Developer with strong experience building low-latency, high-performance systems to support the expansion of an agency liquidity platform and delivery … projects across EMEA and the US. The role requires deep Java expertise, including JVM tuning, concurrency and memory management, alongside experience developing event-driven systems operating at high frequency. Key Responsibilities Design, develop and optimise high-performance Java applications supporting trading and liquidity services. Build and enhance ...

Avanti Recruitment is recruiting for a Senior Java Full Stack Developer to join an established, international software company based in Central London. The company develops complex, business-critical enterprise software used by major organisations internationally. Its products support high-volume transactions and essential business operations, giving engineers … opportunity to work on technically challenging, large-scale applications. This is a hands-on development position with a strong emphasis on Java, Spring Boot, REST APIs and microservices, alongside commercial frontend development using Angular, React or Vue. The company is continuing to modernise its established software platforms, creating ...

## Senior Fullstack Developer — Java or Kotlin, React and TypeScriptApplylocations: London: Manchestertime type: Full timeposted on: Posted Todayjob requisition id: JR100892Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation … chance to do it on a global scale and play a real role in shaping our exciting journey.**The role**As a Senior Fullstack Developer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services.This is a backend ...

diverse, friendly, dynamic culture - with a focus on internal promotion and developing our people. Scope of Role ITRS Group is looking for Senior Java Engineer in London. Reporting to our Engineering Manager, you will sit in the Platform Team and form part of a wider global Engineering Team. … customer adoption through 2026. Our role offers a permanent, full-time position working from our London office on a hybrid work schedule. As a Senior Java Software Engineer, you will: Participate in all phases of the product lifecycle, including design, development, documentation, testing, integration, deployment, and ongoing support. ...

Salt seeks a Senior Java Developer to design, develop, and maintain secure, scalable microservices on AWS. You’ll collaborate with platform engineers, QA, and product teams, following DevOps and security best practices. Hybrid role with 1–2 days on-site, starting ASAP for a 3–6 month … contract. The role requires 5+ years of backend experience, strong Java and AWS skills, and familiarity with RESTful APIs, CI/CD pipelines, and security standards. Travel involved. #J-18808-Ljbffr ...

Hunter Bond is seeking a Principal/Senior Java Developer to join a elite FinTech engineering team in London. You will tackle high-scale, business-critical technology at the intersection of financial services and digital assets, working with top engineers and architects in a hybrid setup. … should have strong Java/server-side experience, Linux, and a track record delivering distributed systems and APIs. FinTech/trading background and blockchain familiarity are highly valued, with hands-on #J-18808-Ljbffr ...

Nomura Holdings, Inc. in London seeks a Senior Java Developer for the Rates Intraday Risk Technology team. You will work with Flow Rates desks and quants to translate complex requirements into robust server-side solutions. The role involves contributing to the architecture refresh and building APIs that … provide intraday risk and P&L data. Strong Java, Spring and build tooling experience is essential; exposure to cloud and container tech is a plus. #J-18808-Ljbffr ...

Senior Java Developer | Electronic Trading | VP/Executive Director Location: London Working Pattern: Hybrid, 3 days per week in the office Salary: Up to £200,000 base + exceptional bonus (Total Compensation up to £350,000) Join one of the largest growth programmes in Electronic Trading Technology … trading platforms from the US into Europe. This is an opportunity to join a business that is actively building rather than maintaining, with multiple senior hires planned over the next 12 months. You'll work alongside experienced engineers developing the next generation of low latency electronic trading systems supporting ...

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 ...

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 ...

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 ...

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. ...

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 ...

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 ...

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/ ...