> Markdown version of [/jobs/ext/2286526-java-developers](https://www.wearedevelopers.com/jobs/ext/2286526-java-developers). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Developers - **Company:** Ocho People - **Location:** Belfast, UK - **Experience:** Experienced - **Salary:** £45,000.0 - £55,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Agile Methodology, Amazon Web Services, Big Data, DevOps, Distributed Systems, Java Virtual Machine (JVM), Object-Oriented Software Development, Performance Tuning, Software Engineering, Real Time Systems, Event Driven Architecture, Real Time Data, Apache Kafka, Stream Processing - **Published:** August 29, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5859715356 ## About the Role * 2+ years of software engineering experience, strong Java preferred, other languages considered if willing to pick up Java quickly * Strong understanding of object-oriented design and distributed system principles * Experience with AWS and event-driven architectures * Familiarity with messaging or streaming systems such as Kafka * A strong problem-solving mindset with genuine interest in performance optimisation Desirable / Nice to Have: * Exposure to financial systems or trading environments * Crypto knowledge or enthusiasm for the space ## Description You'll join a brand-new engineering pod in Belfast tasked with building a real-time exchange connection layer that synchronises data across multiple cryptocurrency exchanges. This forms the backbone of a new trading platform launching next year, and you'll be one of the first engineers writing the code that defines how it's built. Working closely with the global engineering team, you'll design, develop, and optimise low-latency systems handling large, real-time data flows. As Belfast scales into the hub it's designed to become, this pod will grow further, with QA, DevOps, and Support Engineers joining around the foundation you help set., * Develop and maintain real-time systems connecting multiple crypto exchanges * Build event-driven architectures that synchronise large volumes of data efficiently * Optimise JVM performance and contribute to high-availability, low-latency system design * Collaborate with developers and stakeholders across Belfast and the wider global team to deliver robust, scalable solutions * Participate in agile development cycles, driving continuous improvement and technical excellence * Help shape engineering standards and practices for the Belfast hub as it grows ## Related Videos - [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology) - [Java with a Clojure mindset](https://www.wearedevelopers.com/videos/103-java-with-a-clojure-mindset) - [How to Benchmark Your Apache Kafka](https://www.wearedevelopers.com/videos/76-how-to-benchmark-your-apache-kafka) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Why and when should we consider Stream Processing frameworks in our solutions](https://www.wearedevelopers.com/videos/1085-why-and-when-should-we-consider-stream-processing-frameworks-in-our-solutions) - [Let's Get Started With Apache Kafka® for Python Developers](https://www.wearedevelopers.com/videos/565-let-s-get-started-with-apache-kafka-for-python-developers) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Top 10 Java Libraries](https://www.wearedevelopers.com/magazine/364-top-10-java-libraries) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for)