Senior Java Software Engineer - Java 11+, Spring, Spring Boot, Microservices, Kafka, Akka, Docker/Kubernetes, Real-time, TDD/BDD, Payments - London A Senior Java Engineer with a background in finance/payments and experience working on distributed real-time systems is sought after by a global Fintech. … join the core engineering team working on the development of their real-time payments processing platform, using a primary tech stack of Java 17, Spring Boot and Akka. You will contribute from both a design and coding perspective, taking ownership of delivering new components and features ensuring high availability … you will demonstrate: A strong background in hands-on Java engineering, currently working with Java 11+ Indepth knowledge of microservices architecture and usage of Spring/Spring Boot Experience developing distributed, real-time applications (with Akka AND/OR Kafka) with an appreciation of topics such as Concurrency More ❯
Senior Java Software Engineer – Java 11+, Spring, Spring Boot, Microservices, Kafka, Akka, Docker/Kubernetes, Real-time, TDD/BDD, Payments - London A Senior Java Engineer with a background in finance/payments and experience working on distributed real-time systems is sought after by a global Fintech. … join the core engineering team working on the development of their real-time payments processing platform, using a primary tech stack of Java 17, Spring Boot and Akka. You will contribute from both a design and coding perspective, taking ownership of delivering new components and features ensuring high availability … you will demonstrate: A strong background in hands-on Java engineering, currently working with Java 11+ Indepth knowledge of microservices architecture and usage of Spring/Spring Boot Experience developing distributed, real-time applications (with Akka AND/OR Kafka) with an appreciation of topics such as Concurrency More ❯
London, England, United Kingdom Hybrid / WFH Options
Fynity
event-driven systems using modern Java technologies. Design and build scalable, high-availability systems processing millions of real-time transactions Work with Java 17+, SpringWebFlux, AKKA, Kafka, and more Write clean, testable code using TDD and BDD Contribute to architectural decisions in a fast-evolving codebase Collaborate … and thrive on solving complex distributed systems problems. Strong hands-on experience with Java 11+ (ideally Java 17) Solid knowledge of Reactive Programming (e.g., SpringWebFlux, AKKA) Experience with event-driven architecture, real-time messaging systems (Kafka, JMS) Familiarity with asynchronous request handling, scalability, and system resilience Agile More ❯
technologies to create impactful tools and integrations. Key Responsibilities: Design, develop, and maintain APIs and microservices using Java 21, Java 8, Project Reactor, and Spring WebFlux. Build and enhance SCA plugins for Gradle, Maven, and npm to identify vulnerabilities. Develop integrations with tools such as GitHub, SonarQube, TeamCity, Jenkins … left, and secure SDLC. Required Skills and Experience: Strong proficiency in Java (Java 21 and Java 8). Experience with reactive programming (Project Reactor, SpringWebFlux). Solid understanding of DevOps and DevSecOps principles, including SCA, SAST, and shift-left security. Hands-on experience with dependency management tools More ❯
our profit comes from. This role is pivotal in the success of our business and you will bring solid experience dealing with FX. Java & Spring Boot Mastery – Deep proficiency in Java, Spring Boot, Spring Cloud, and reactive frameworks (WebFlux/Project Reactor). Cloud & DevOps Knowledge More ❯
Senior Java Developers - Java/Vert.x/Webflux We are looking for 2 x Java Developers with strong Vert.x/Webflux to work on a multi-year project. Stack - Java, AWS, TDD, Vert.x/Webflux. 2 days a week in London 6 month rolling contract £500-600 per More ❯
Senior Java Developers - Java/Vert.x/Webflux We are looking for 2 x Java Developers with strong Vert.x/Webflux to work on a multi-year project. Stack - Java, AWS, TDD, Vert.x/Webflux. 2 days a week in London 6 month rolling contract £500-600 per More ❯