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# Senior Developer

- **Company:** Prism Digital
- **Location:** Milton Keynes, UK
- **Experience:** Expert
- **Salary:** £70,000.0 - £75,000.0
- **Contract:** Permanent contract
- **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), Unit Testing, C Sharp (Programming Language), C++ (Programming Language), Cascading Style Sheets (CSS), Data Centers, Linux, DevOps, Linux Kernel, MySQL, Socket Programming, SQL Databases, TCP/IP, Web Platforms, Multithreading, Backend, Git, Information Technology, Software Version Control, Docker
- **Published:** July 18, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5805539670

## About the Role

* Java or C# (the platform has both, so strong in one and happy to look after the other on the job)
 * JavaScript, HTML, CSS
 * C or C++ exposure (doesn't have to be recent, university or early-career counts)
 * Low-level and multi-threaded coding
 * SQL (any flavour, MySQL in house)
 * DevOps experience, and a genuine willingness to help keep a live service up

What You'll Work With

 * A web platform with both Java and C# in the codebase
 * A C++ real-time feed handling hundreds of thousands of market messages a second
 * A large, long-running store of historical market price data
 * Self-hosted infrastructure across multiple data centres, on Linux
 * A code-review process before anything ships
 * Revision control moving from CVS to Git this summer

Nice to Haves

 * Team leading or mentoring
 * Networking and Linux internals (TCP/IP, protocols, socket programming)
 * A degree in computer science or a numerate discipline
 * A real interest in financial markets
 * Unit testing or structured-testing experience
 * Docker and containerisation

## Description

You'll join as a Senior Developer working right across the stack, from the client-side JavaScript through to a Java, C# and C++ backend that processes hundreds of thousands of market messages a second. The team doesn't just build the product, it keeps it running, so you'll get to know the whole system and take real ownership of keeping it up for customers. This is genuinely remote, not remote-with-strings, with the odd trip to London for the socials and the occasional get-together.


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