Senior Software Engineer
hace 9 días
Cardiff
Job Description Senior Software Engineer Hybrid Up to £80,000 + Benefits The Role Reporting to the Engineering Lead, you will drive the design of our core lending platform. We are looking for an engineer who understands modern, high-performance Python—not just scripting. You will architect event-driven systems, handle asynchronous workflows, and mentor the team on scalability best practices. Tech Stack Core: Modern Python (3.10+), AsyncIO, REST APIs. Data: SQL (PostgreSQL), NoSQL, Event-Driven Architecture. Ops: Containerisation (Docker), CI/CD, Cloud Native. Core Responsibilities Architecture & Scale: Design scalable, asynchronous backend systems. You will make high-level decisions on concurrency, latency, and caching. Technical Leadership: Lead the team on performance tuning and reliability patterns (retries, idempotency). Code Quality: Enforce a high standard of testing (Unit, Integration, Contract) and modern dependency management. Mentorship: Mentor junior engineers through pairing and code reviews to drive technical growth within the team. Requirements Deep Python Expertise: You know the internals of the language, specifically memory management, packaging, and performance tuning. Distributed Systems: Proven experience designing systems that handle high load and asynchronous processing. Methodology: Extensive experience in Agile environments (SAFe experience is a strong plus). Communication: Our ethos is one of continuous improvement, driven by a highly collaborative environment. While there is plenty of deep work involved, this isn't a solitary role—we prioritize pairing, design discussions, and shared problem-solving over working in isolation.