This job is no longer available
This job expired on 19/07/2026. It no longer accepts applications.
Senior Backend Developer
Narwhal Labs · City Of Bristol
Job description
About the role
Narwhal Labs is building an AI‑powered communications platform and needs a senior backend engineer to design, scale, and own the core infrastructure. You will work on integrating large language models and other machine‑learning services into production while mentoring junior engineers.
Key responsibilities
- Design and build scalable APIs and microservices primarily using Python.
- Integrate AI/ML features and LLM‑powered services into live products.
- Contribute to platform architecture, long‑term roadmap, and cloud strategy.
- Mentor junior developers through code reviews, pair programming, and coaching.
- Collaborate with product, design, and AI specialists to deliver high‑impact features.
Required profile
- 5+ years of backend development experience with strong Python expertise.
- Experience with .NET/C# and PHP is a plus.
- Solid understanding of RESTful APIs, microservices, authentication, and database design.
- Hands‑on experience with a major cloud platform (AWS, Azure, or GCP).
- Practical exposure to AI/ML frameworks or LLM API integrations.
- Natural mentor who enjoys growing junior talent and strong communication skills.
Required skills
- Python
- .NET
- C#
- PHP
- RESTful APIs
- Microservices
- Authentication
- Database design
- AWS
- Azure
- GCP
- AI/ML frameworks
- LLM API integrations
- Docker
- Kubernetes
- CI/CD pipelines
- MLOps
- Distributed systems
- Next.js
- React
- TypeScript
What we offer
- Competitive, benchmarked compensation.
- Real ownership of architecture decisions and career trajectory.
- Front‑row seat to the AI revolution, working with cutting‑edge tools.
- A collaborative team that values engineering quality.
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Narwhal Labs
City Of Bristol