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Duetto's core Java/Spring platform processes millions of rate decisions daily across thousands of hotels worldwide — and this role owns its architecture and evolution. What You'll Be DoingYou'll own the architecture and technical roadmap of Duetto's Java/Spring monolith — driving domain decompos

A track record of building scalable data integration systems (beyond simple ETL jobs)Strong proficiency in Java and the JVM ecosystem, including deep knowledge of memory management, garbage collection tuning, and performance profiling. Solid experience with concurrent programming in Java, including

Senior Lead eSoftware Engineer - Equities Algo Trading - Java - VP. Formal training or certification on software engineering concepts and proficient advanced experience in Java.

London seeks a Lead Software Engineer within the ETF Technology team to deliver trusted market-leading technology products in a secure, scalable way.You will be a core technical contributor delivering critical solutions across multiple areas for UCITS ETF assets under management, collaborating with

Wireless Logic is hiring a Senior Java Software Engineer to drive backend services and APIs, with occasional frontend tasks.

Banking Tech Full Stack Lead Engineer (Angular/Java) - VPApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26981759Engineer the future of global finance. Key Responsibilities* Design and build business requirements on m

Oliver Bernard is seeking three senior Java Developers to join a high-performing engineering team delivering cloud-native applications. You will design, develop and maintain Java microservices, work with Kafka, AWS and Kubernetes, and collaborate in an Agile environment to deliver scalable, resilien

Build C#/WPF and JavaScript front-end desktop applications to interface with the Java services. Develop Java Services integrated in the end to end processing of the derivative products. Formal training or certification on software engineering concepts and advanced applied experience in Java.

You'll be working on modern distributed systems, building highly scalable services using Java, Kafka, AWS and Kubernetes within an Agile environment. Design, develop and maintain high-performance Java microservices. You'll be joining an experienced engineering team delivering modern, cloud-native pl

This role will focus on low-latency systems and application framework engineering, requiring hands-on experience with Java and algorithmic trading technologies.

The position focuses on low-latency Java development for the e-FX Desk, requiring strong experience with trading projects. The ideal candidate will optimize low-latency systems and possess significant expertise in Java, multithreading, and algo development.

Morson Human Resources Limited seeks a Java Tech Lead to join a software consultancy delivering a greenfield project in the iGaming sector.

The role requires strong hands-on coding with Java/Kotlin, AWS and distributed systems expertise.

Develops secure, high-quality production code using Java, Oracle, and SQL, and reviews, debugs, enhances, and supports code written by others. Advanced hands-on experience in Java, with strong experience in Oracle databases, SQL, data design concepts, and scalable application development.

Technical Architect (AWS Java) Remote UK to £100k. Are you a hands‑on Technical Architect with strong Java coding skills and experience architecting and operating large scale systems on AWS?. You have strong Java coding skills and a working knowledge of other languages (Python, Go, etc) for suppo

Myn in Greater London and surrounding areas is seeking a Senior Java Developer to lead the design and development of secure, scalable Java services.

A leading energy software platform is seeking a Senior Java Developer to support sustainable projects. Ideal candidates should possess a strong understanding of Core Java, multithreading, and concurrency.

A leading tech company in Greater London is seeking an experienced Java Engineer for a 6-month hybrid contract. The ideal candidate has strong Java and Spring Boot experience, along with a passion for TDD and microservices.

Prior experience of a sequencer/event-based architecture, and/or Zero-GC Java. Goldman Sachs Electronic Trading (GSET) - Low-Latency Java Software Engineer - London. Strong Java programming skills, ideally in a real-time low latency / zero GC environment.

Goldman Sachs in London is seeking a Vice President to join the Global Banking Markets team as a Low-Latency Java Software Engineer. Candidates should have strong Java skills and experience with test automation and scalable systems.

You’ll design, build and maintain cloud-native applications using Java, Spring Boot, and microservices, with Kafka for event-driven flows and AWS with Docker/Kubernetes (EKS). LA International seeks a Senior Java Developer for a 12-month contract in London.

Citibank (Switzerland) AG in London/Global Tech is seeking a senior Java engineer to design and deliver high‑performance trading platform components. The role requires deep Java expertise, knowledge of low‑latency distributed systems, and experience with messaging and data processing tools.

Applied experience in Scala and Java.

Advanced skills in one or more programming languages such as Java, Python, C/C++, or C#.

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Lead Software Engineer at JPMorganChase within the ETF Technology team in EMEA, you are an integral part of an agile team that works to enhance, build, and deliver trusted mark

A leading technology firm in Greater London is seeking an experienced Enterprise Architect (Java J2EE) for a contract role in the BFSI domain. Ideal candidates will have over 20 years in software architecture, proven expertise in Java/J2EE, and deep understanding of cloud services and DevSecOps prac

You have a strong software engineering background with Java. Engineering Manager (Java AI) opportunity. Engineering Manager (Java AI) London / WFH to £140k.

A technology consultancy firm in Greater London is seeking a Principal Engineer specializing in Java.

The role involves designing, building, and maintaining Java-based backend systems, with a focus on cloud-native and microservices architectures. The ideal candidate has hands-on experience with Java, cloud technologies, and mentoring skills. A leading financial institution in London is seeking a Sen

Morgan is seeking a Lead Software Engineer to drive architecture, coding, and delivery across the full software lifecycle.You will spend ~70% on deep technical execution and ~30% on leadership, mentoring, and setting direction, with ownership from design to production support.The role emphasizes pra

London seeks a Lead Software Engineer for the Equity Derivatives Group.You will join an agile team delivering high-quality software using modern tech and industry best practices, collaborating with a global technologists network to build and support market-leading products.Responsibilities include d

Novify is recruiting a Senior Quantitative Developer to design and optimise an institutional-grade trading platform for spot and derivatives.London, UK is preferred with Amsterdam considered; salary up to £200K base plus equity, full-time.You will build and launch new derivative products, work with

You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services, APIs and event-driven workflows. Strong commercial experience developing server-side applications with Kotlin or modern Java, ideally Java 17 or later. Build and maintai

Ideal candidates have 5+ years in agile environments, strong experience with Java, Kotlin, React, and cloud-native tech (Docker, Kubernetes), and a degree in CS or related field.

The role requires strong Java/Spring, plus experience with AWS, PostgreSQL, Docker, Kubernetes, Kafka and observability tools.

Nomura in London is seeking a Lead Java Software Engineer to drive the architecture and delivery of our AI Labs/Data Lake platform within Wholesale Data Technology.

Proficiency in Python, Java, and JavaScript or TypeScript.

Bullish in London seeks a Senior Engineer for Risk Engineering to build high-performance JVM services and APIs that power real-time risk calculations, margin requirements, and stress scenarios.You will translate complex risk models into robust, well-tested software, collaborate with quants and produ

JPMorganChase is seeking a Lead Software Engineer to join the Corporate Global Tax Technology team.You will join an agile unit delivering trusted, scalable technologies in a secure environment, driving innovation with AI-assisted practices and modern cloud architectures.You will lead design, develop

Proficiency in Python, Java, and JavaScript/TypeScript.

Applied experience in Scala and Java.

The ideal candidate will have over 5 years of experience in cloud solutions, proficient in JAVA and JVM languages, and familiar with Agile methodologies.

Prior experience of a sequencer/event-based architecture, and/or Zero-GC Java. Global Banking Markets - Low-Latency Java Software Engineer - Vice President - London location_on London, Greater London, England, United Kingdom. Goldman Sachs Electronic Trading (GSET) - Low-Latency Java Software Engine

A well-established financial markets firm is seeking a Senior Java Trading Systems Developer to support the continued development of its electronic trading technology. Design, build and maintain trading systems using Java. Strong commercial Java development experience.

You will design, develop and deploy Java-based services, REST APIs and React frontends, collaborating with traders and operations to solve real business problems. You will work across Java, Node.

You will design, develop, and test production code in Java or Python, contribute to architecture, and help improve coding hygiene and system design while collaborating across teams.

Write high-quality Java code using frameworks such as Spring Boot or Micronaut. Proven experience as a Principal Java Engineer in backend-heavy environments in teams having multiple levels of engineering. Strong experience in Java 17+, ideally with experience in using Spring Boot or Micronaut.

Significant extensive hands-on coding experience in core Java, specializing in low-latency, high-throughput distributed applications. Basic proficiency in Linux system performance tuning and monitoring, with the ability to troubleshoot performance issues within the Java/Linux stack.