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.