Senior Software Engineer

Senior Software Developer in Test (React/Java)

Our client is a fast‑growing fin‑tech with base in Newcastle city centre. The business provides a range of solutions to support real‑time trading of complex financial products, with customers based in major financial centres worldwide. They are a highly innovative business, demonstrating engineering excellence to build high‑performance solutions that underpin millions of transactions every day.

• Building and optimising real‑time client/server architectures.
• Driving innovation through automation and best practices.
• Mentoring junior developers and conducting code reviews.
• Contributing to agile processes and CI/CD pipelines.
• Responding to critical technical issues and ensuring system reliability.

This is a full‑time, hybrid role requiring 3 days per week in our Newcastle city centre office, so locally based candidates are preferred.

• Excellent development skills, preferably 5+ years in C#/.NET (including multithreading), and experience in React/Type Script.
• Experience in capital markets/derivatives trading or similar would be highly beneficial.
• More generally exposure to the investment/banking sector, gambling, or crypto would all be of interest.
• Strong problem‑solving skills and attention to detail. You’ll be taking a lead role in the design and build of new features, understanding the requirements and making decisions to ensure the solution meets customer demands.
• Excellent communication skills. The client is a small business and you’ll work closely with product teams. An ability to translate user‑tech and tech‑user speak is essential.
• A passion for software development and emerging technologies.

We offer a competitive salary, performance bonus, private medical insurance, pension scheme, and other benefits.