Backend Engineer; Python​/GPU Risk Modelling

Backend Engineer (Python, FastAPI/Flask/Django

GPU/CUDA)
📍 Bristol (Hybrid)
💰 £55,000 - £70,000 + Benefits
📝 Permanent

An innovative analytics organisation operating within the insurance and risk sector is looking for a Backend Engineer to join their growing technology team in Bristol.

This company builds advanced underwriting and risk modelling platforms that combine modern software engineering, cloud infrastructure, and high-performance computing. You'll join a collaborative, highly skilled team of engineers and data scientists working on systems that directly influence real-world underwriting and portfolio decisions.

This is an excellent opportunity for someone with strong Python backend experience who is excited by data-intensive systems, cloud-native architecture, and performance-driven engineering.

As a Backend Engineer, you will play a key role in developing and scaling backend services that power a next-generation risk modelling platform.

You’ll work closely with engineers and risk scientists to support GPU-accelerated modelling pipelines, design robust APIs, and ensure systems are reliable, performant, and production-ready.

• Develop and maintain backend services in Python using modern frameworks (e.g. FastAPI)
• Design and implement REST APIs for internal platforms and third‑party integrations
• Collaborate with scientists to support a GPU‑accelerated risk modelling engine
• Optimise backend services for scalability, performance, and reliability
• Integrate with underwriting, analytics, and portfolio systems
• Support cloud‑native deployments (GCP environment)
• Write clean, well‑tested, well‑documented code following best engineering practices
• Work in a cross‑functional team alongside engineers, data scientists, and domain specialists

• 3‑5 years' professional backend engineering experience with Python
• Strong experience with FastAPI (or similar modern Python frameworks)
• Experience with relational databases (e.g. Postgre
  
  SQL) and ORMs such as SQL Alchemy
• Experience working in cloud environments (GCP preferred)
• Solid understanding of testing, CI/CD, Git workflows, and clean code principles
• Strong communication skills and a collaborative mindset
• Degree in Computer Science or related technical discipline

• Exposure to GPU computing or acceleration frameworks (e.g. CUDA, CuPy, Numba)
• Experience with Terraform or infrastructure‑as‑code tooling
• Familiarity with Kubernetes or other cloud orchestration platforms
• Interest in high‑performance or numerical computing
• Experience with in insurance, finance, or analytics‑driven environments

• Work on technically challenging, real‑world modelling systems
• Collaborate with highly skilled engineers and scientists
• Exposure to GPU acceleration and performance engineering
• Competitive salary (£55k-£70k)
• Hybrid working model (Bristol‑based team)
• Opportunity to influence and shape a growing platform

If you're a Python backend engineer looking to work on complex, high‑impact systems in a collaborative and forward‑thinking environment, we'd love to hear from you.