Backend AI Systems Engineer for Scalable LLMs

Locai Labs; City of London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A pioneering AI company in Paddington, London, is seeking a Software Engineer (Backend, AI Systems) to design and develop backend systems and tools. Applicants should have 2-5 years of relevant experience, strong programming skills, and a passion for solving complex technical problems in an innovative environment. This full-time position offers the opportunity to shape cutting-edge AI applications directly.

Qualifications

• 2–5 years of professional software engineering experience, ideally on backend systems and APIs.
• Strong understanding of backend architectures and data modeling.
• Practical experience with databases (SQL/NoSQL).

Responsibilities

• Design and develop backend systems and APIs for AI-driven products.
• Integrate LLMs into scalable production-ready systems.
• Contribute to system architecture and engineering best practices.

Skills

Backend architectures

REST/GraphQL APIs

Containerisation (Docker)

GCP/AWS

LLM or AI APIs

Agentic frameworks

Databases (SQL / NoSQL)

Software design principles

Job description

A pioneering AI company in Paddington, London, is seeking a Software Engineer (Backend, AI Systems) to design and develop backend systems and tools. Applicants should have 2-5 years of relevant experience, strong programming skills, and a passion for solving complex technical problems in an innovative environment. This full-time position offers the opportunity to shape cutting-edge AI applications directly.