Senior Python Engineer

🚀 Senior Backend Engineer (Python) - AI Platform | High-Growth FinTech - £500 Outside IR35 - 6 month contract We're partnering with a rapidly scaling AI company transforming global debt markets. Their platform centralises proprietary credit data, deep analysis and high-value workflows for 300+ leading financial institutions worldwide. With strong product-market fit and rapid international expansion, they're hiring a Senior Backend (Python) Engineer to take technical ownership across high-impact projects. What You'll Do • Lead system design and deliver scalable backend services • Build and evolve APIs, data processing pipelines and automation • Mentor engineers and run code reviews • Collaborate closely with Product and cross-functional domain experts • Continuously improve performance, quality and developer experience What We're Looking For • Strong Python (Flask moving to FastAPI with Typing) backend experience • Proven experience building APIs within service-oriented architectures • Solid SQL knowledge • PostgreSQL • AWS (Lambda, ECS) • Docker • Strong system design and data flow thinking • Collaborative mindset with high coding standards What's On Offer • Top-of-market salary • Pension matched up to 7% • Private medical + income protection • 25 days holiday + hybrid working • Work abroad up to 3 months per year • Learning & development budget If you're interested in joining a high-growth AI business reshaping global financial infrastructure, apply or message me directly.