Backend Engineer at Weekday AI

Hoyland, United Kingdom

on-site · full_time · Visa sponsorship

Apply for this role at Weekday AI

Responsibilities:
- Design, build and maintain backend services and REST APIs using Python and FastAPI.
- Develop scalable microservices and integrations that power LLM-based and agentic AI workflows.
- Integrate LLMs and AI components into production pipelines, handling inference, caching and orchestration.
- Collaborate with product, ML and frontend teams to deliver end-to-end solutions and APIs.
- Ensure reliability, performance and observability: logging, metrics, testing and automated deployments.
- Debug and resolve complex production issues; contribute to architectural and design decisions.

Requirements:
- 5+ years backend development experience with strong Python and FastAPI skills.
- Solid understanding of REST API design, microservices and scalable system architecture.
- Practical exposure to LLMs, agentic AI patterns or AI system integration preferred.
- Experience with cloud environments, deployment pipelines and production monitoring.
- Strong problem-solving, debugging and communication skills; product-focused mindset.
- Willingness to relocate for an onsite international role; visa sponsorship available.