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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Junior Java Software Developer - **Company:** Fasanara - **Location:** London, UK - **Experience:** Starter - **Salary:** £55,151.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Apache HTTP Server, Software Quality, Code Review, Software Debugging, Programming Tools, Digital Assets, Distributed Systems, Python (Programming Language), Operational Data Store, Object-Oriented Software Development, Reference Data, Software Engineering, Data Streaming, Kotlin, Event Driven Architecture, Production Code, Apache Kafka, Software Version Control - **Published:** September 29, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5902851792 ## About the Role Experience in financial services, trading, banking, or digital assets is welcome but not required. We are interested in candidates with a solid foundation in Java development and a willingness to learn about our systems and markets., Technical Requirements * 2+ years of professional software engineering experience. * Practical experience developing in Java or Kotlin in a professional environment. * Functional understanding of distributed systems concepts and an interest in developing practical experience. * Interest in learning about real-time, event-driven, and high-availability systems; prior exposure is helpful but not required. * Sound understanding of software engineering fundamentals, including object-oriented programming, testing, and version control. * Experience debugging and improving existing code and developing new functionality, with guidance when needed. * Strong problem-solving and analytical skills. * A self-starter who takes initiative, works independently on well-defined tasks, and seeks support when needed. * Strong communication and collaboration skills. Desired Skills * Commercial Kotlin experience. * Previous experience within financial services, trading, banking, hedge funds, or fintech. * Experience within cryptocurrency or digital assets. * Knowledge of crypto exchanges, trading venues, protocols, or market infrastructure. * Experience developing collateral, position, accounting, market data, or reference data systems. * Experience with Python. * Experience with Apache, Kafka or other event streaming technologies. * Experience using AI-assisted software development tools. * Understanding of traditional financial instruments and financial market infrastructure. ## Description We are looking for a Junior Java Software Developer to join Fasanara Digital and contribute to systems supporting our 24/7 trading activity, with guidance from experienced engineers. The role will focus on contributing to the development and maintenance of our multi-venue collateral management platform, alongside new reference data and accounting infrastructure supporting both digital assets and traditional financial markets. This is a hands-on engineering role within a small, high-performing team, with opportunities to learn from experienced colleagues. You will work on well-defined tasks across both new development and existing production systems, helping to build new functionality and maintain and improve established code. We are looking for a self-starter who takes initiative, follows through on tasks, and asks for guidance when needed., * Help develop, maintain, and enhance our multi-venue collateral management system supporting 24/7 trading activity, with guidance from experienced engineers. * Contribute to improvements in distributed, real-time, and event-driven systems, learning how to support their reliability and availability. * Help build and maintain integrations with trading venues to source account, position, collateral, and other operational data. * Assist with implementing reference data frameworks and accounting pipelines supporting both traditional financial instruments and digital assets. * Develop primarily in Java and Kotlin, following established patterns and participating in code reviews and technical discussions. * Maintain, debug, and improve existing production code alongside developing new functionality, with support and code review from the team. * Take initiative on well-defined tasks, follow through on agreed work, and raise questions or blockers promptly. * Work closely with experienced engineers to understand business requirements and contribute to practical technical solutions. * Use modern AI-assisted development tools to improve engineering productivity and software quality. ## Related Videos - [How to Benchmark Your Apache Kafka](https://www.wearedevelopers.com/videos/76-how-to-benchmark-your-apache-kafka) - [Are Code Reviews Worth It? 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