Lead Python Software Engineer - SC Cleared (12 Month Contract) - £700/day (Inside IR35) Location: London or Leatherhead (3 days onsite per week)Rate: Up to £700 per day (PAYE/Inside IR35)Duration: 12 Month ContractStart: ASAP SC Cleared Python Engineer - Immediate Requirement We are recruiting a Lead Python Software Engineer (SC Cleared) to join a high-profile national security programme.Active SC clearance is mandatory - candidates without current, transferable SC clearance cannot be considered.This is an exciting opportunity to work on cutting-edge, mission-critical systems in a highly secure and innovative environment. MANDATORY SECURITY REQUIREMENTS (NON-NEGOTIABLE) Active SC Clearance (must be transferable) Must be a sole British national (no dual nationality) Recent experience within a government/defence/secure environment Clearance must be valid with 12months + remaining The Role: Lead Python Engineer (SC Cleared) You will play a key role in leading delivery across complex engineering challenges, including: Leading and mentoring high-performing development teamsDesigning and building scalable data processing pipelinesDriving quality through unit, integration and end-to-end testingContributing to architecture, design and technical documentationWorking across cloud, DevOps and secure environmentsSolving complex technical problems in a bespoke, high-impact setting Key Skills andamp; Experience 7+ years experience with Python (OOP + functional programming)Proven experien