AI Engineer

Radley James; Greater London; On-site; GBP 100,000 - 175,000; Full time

Benefits offered by this job

Equity participation

Job summary

Radley James in London is seeking multiple AI Software Engineers to build enterprise AI solutions for financial services, with ownership of critical systems and new product development.

Join a venture-backed team, work on AI/LLM apps, scalable backends, and collaborate with founders to shape architecture and engineering standards.

Qualifications

• 5+ years of professional software engineering experience.
• Strong backend engineering skills, ideally using Python.
• Experience building and deploying AI/LLM applications in production.
• Practical understanding of RAG, AI agents and LLM evaluation techniques.
• Experience developing APIs using frameworks such as FastAPI or Django.
• Strong knowledge of relational databases and distributed application architectures.
• Familiarity with cloud platforms, Docker, Kubernetes and CI/CD.
• Experience with Redis, background workers or asynchronous processing systems.
• Ability to work independently and take ownership of complex engineering challenges.

Responsibilities

• Design, develop and deploy AI-powered applications and autonomous agent systems.
• Build scalable backend services, APIs and supporting infrastructure.
• Develop Retrieval-Augmented Generation (RAG) pipelines and LLM orchestration frameworks.
• Implement evaluation, monitoring and optimisation processes for production AI systems.
• Build and maintain data processing pipelines and asynchronous task architectures.
• Ensure applications meet enterprise requirements for security, reliability and performance.
• Collaborate closely with engineering leadership, product teams and founders.
• Contribute to technical architecture, engineering standards and code quality.

Skills

Python

Backend development

Distributed systems

Tools

FastAPI

Django

PostgreSQL

Docker

Kubernetes

CI/CD

Redis

Job description

AI Software Engineer – Multiple Openings

Location: London, UK

Employment Type: Permanent, Full-Time

About the Opportunity

We are recruiting multiple AI Software Engineers for a rapidly growing, venture-backed technology company developing advanced AI solutions for the financial services industry.

The business is building an enterprise-grade platform that enables major financial institutions to automate complex workflows using large language models, intelligent agents and modern software infrastructure.

Following a substantial funding round and strong commercial growth, the company is expanding its engineering function and offering opportunities for experienced engineers to take ownership of critical systems and new product development.

Key Responsibilities

• Design, develop and deploy AI-powered applications and autonomous agent systems.
• Build scalable backend services, APIs and supporting infrastructure.
• Develop Retrieval-Augmented Generation (RAG) pipelines and LLM orchestration frameworks.
• Implement evaluation, monitoring and optimisation processes for production AI systems.
• Build and maintain data processing pipelines and asynchronous task architectures.
• Ensure applications meet enterprise requirements for security, reliability and performance.
• Collaborate closely with engineering leadership, product teams and founders.
• Contribute to technical architecture, engineering standards and code quality.

Required Experience

• 5+ years of professional software engineering experience.
• Strong backend engineering skills, ideally using Python.
• Experience building and deploying AI/LLM applications in production.
• Practical understanding of RAG, AI agents and LLM evaluation techniques.
• Experience developing APIs using frameworks such as FastAPI or Django.
• Strong knowledge of relational databases and distributed application architectures.
• Familiarity with cloud platforms, Docker, Kubernetes and CI/CD.
• Experience with Redis, background workers or asynchronous processing systems.
• Ability to work independently and take ownership of complex engineering challenges.

What's on Offer

• Base salary of £100,000–£175,000, depending on experience.
• Equity participation.
• Multiple engineering positions available.
• Opportunity to build production AI systems used by major financial institutions.
• Direct collaboration with an experienced founding team.
• Significant technical ownership and influence over engineering decisions.
• Opportunity to join a well-funded business during a major growth phase.