Senior Python Software Engineer Watford, Hertfordshire (Hybrid) £70,000 - £75,000 per annum + Excellent benefits On behalf of an industry Leading organisation, I am seeking a Senior Python Software Engineer with strong production experience building high-throughput, message-driven platforms. This role suits someone comfortable working on real-world, always-on systems where reliability, performance, and clear engineering judgement matter as much as clean code. The business is pleased to offer this role on a hybrid basis with a non-negotiable 3 days in office; therefore, you must be within easy reach of their Watford-based offices. Responsibilities: Collaborate closely with Principal Engineers. Provide technical guidance, insight, and mentorship to other engineers. Participate in peer reviews and offer constructive feedback. Support product stakeholders in shaping the roadmap. Contribute to best practices and engineering standards across the wider engineering organization. Participate in modern software development practices including pairing, code reviews, documentation reviews, testing, and continuous delivery. Translate requirements into implementable technical specifications and tasks. Maintain accurate and reliable technical documentation. Provide regular updates on progress, timelines, risks, and dependencies. Lead troubleshooting and incident resolution, including occasional out-of-hours support. Ensure unit tests are implemented and fit for purpose. Research and evalua