Python Developer - Lorien Impellam

Senior Python Developer - Risk & PnL Team Location: London (Minimum 50% onsite) Contract Length: Initial 6-month contract (funded for several years with strong extension prospects) Day Rate: Competitive (inside IR35) Start Date: ASAP Overview We are seeking an experienced Senior Python Developer to join a high-performing Risk & PnL Team supporting a critical trading platform within a leading financial services environment. The team is responsible for the development and enhancement of TRACC, a business-critical application used by the Derivatives Execution & Clearing (DEC) business. The Role Working within a collaborative team of 3 Developers, 1 Business Analyst, 1 Tester and the Team Lead, you will be involved in all aspects of the platform's development and ongoing enhancement. The role covers: • Core Python application development • Web API design, development and maintenance • Database development and optimisation • Infrastructure and server-side processes • Front-end enhancements using JavaScript/Angular • Test automation and CI/CD improvements • Working directly with business users and middle office stakeholders to understand and deliver requirements You will play a key role in driving Agile best practices, promoting high-quality engineering standards and helping shape the future direction of the platform. Key Responsibilities • Design, develop and maintain Python-based applications and services • Build and enhance APIs supporting critical business functionality • Deliver enhancements and features through the Jira backlog • Work closely with business stakeholders to gather, analyse and refine requirements • Participate in sprint planning, technical discussions and solution design sessions • Demonstrate completed work and new functionality to stakeholders • Champion automated testing and continuous integration practices • Identify opportunities for automation, simplification and platform improvements Essential Skills & Experience • Expert-level Python development experience • Strong experience building and maintaining Web APIs • Solid understanding of SQL and database design • JavaScript, HTML and web application development experience • Proven experience with Test-Driven Development (TDD) • Strong focus on automated testing and deployment practices • Experience working with CI/CD tools, particularly Jenkins • Excellent communication and stakeholder management skills Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.