Senior Python Engineer (Remote)

Company: Harrington Starr
Apply for the Senior Python Engineer (Remote)
Location: London
Job Description:

Our client is a global financial services and market infrastructure business operating across commodities, energy and financial markets. They provide liquidity, execution, clearing and risk solutions to a broad institutional client base including banks, hedge funds, asset managers, traders and producers. This role sits within a business-facing Risk Technology team focused on building and enhancing strategic risk systems and analytics platforms used across multiple areas of the business. The successful candidate will join a team responsible for developing scalable risk engines and improving complex calculation, reporting and data-processing workflows across areas such as:

Market Risk Counterparty Risk Clearing Risk Operational Risk This is a highly collaborative role sitting close to both technology and business stakeholders, offering strong exposure to quantitative risk processes, large-scale data engineering challenges and modern cloud-based engineering practices.

Develop and enhance strategic risk engine applications and supporting infrastructure Build scalable numerical-processing systems and high-volume data workflows Improve automation, reporting and operational efficiency across risk platforms Integrate and standardise data across internal and vendor systems Work closely with Risk, Platform Engineering, Application Support and wider technology teams Contribute to architecture discussions, testing strategy and engineering best practices Work with modern AI-assisted development tooling where appropriate

Python AWS cloud technologies Relational and non-relational databases CI/CD and automated testing Agile/Scrum delivery environments

Strong Python engineering experience with focus on scalable backend or data-intensive systems Experience building applications involving complex calculations or large-scale processing Strong understanding of software engineering best practices, testing and automation Experience operating within regulated or financial services environments is beneficial The role offers strong long-term growth potential within a modernising technology function supporting commercially critical business areas….

Posted: June 1st, 2026