> Markdown version of [/jobs/ext/4495551-python-software-engineer](https://www.wearedevelopers.com/jobs/ext/4495551-python-software-engineer). 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). --- # Python Software Engineer - **Company:** Durlston Partners - **Location:** Cardiff, UK - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Algorithmic Trading, C++ (Programming Language), High-Frequency Trading, Python (Programming Language), Linux System Administration, SQL Databases, Real Time Systems, Real Time Data - **Published:** November 2, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/python-software-engineer/54693725 ## About the Role Min 2+ years of Python experience in a professional setting (HFT, trading, fintech, or other high-performance domains). Exposure to C++ or willingness to work in multi-language environments is a plus. Familiarity with SQL databases and Linux-based systems. Interest in financial markets, real-time systems, or algorithmic trading. ## Description As a Python Software Engineer, you'll collaborate with traders, quantitative researchers, and other developers to design, develop, and optimise trading infrastructure. You'll be directly contributing to systems that operate at nanosecond-level latency and handle massive volumes of real-time data., Develop and maintain systems for real-time market data, trade execution, and reconciliation. Optimise performance and scalability across key trading infrastructure components. Partner with cross-functional teams to improve tooling, observability, and automation. Deliver robust, production-ready solutions in a fast-paced environment.