AI & Agentic Systems Engineer

Profile 29; City Of London; On-site; GBP 40,000 - 75,000; Full time

Job summary

AI Builder, a Workflow & AI Orchestration Specialist, is recruiting to expand its AI engineering team in London Westminster. You will design, develop and scale AI and agentic AI systems to solve real-world problems for clients and internal use.

The role blends hands-on coding with system design, using Python and agentic tools. They welcome engineers from diverse backgrounds who are curious, collaborative and eager to learn in a fast-moving AI environment.

Qualifications

• Experience building systems that incorporate AI or agentic AI.
• Foundational knowledge in maths, statistics or computer science.
• Proficiency in Python and broader system design.
• Experience with agentic coding tools (Claude Code, OpenAI Codex).
• Strong system-design judgement and testing mindset.

Responsibilities

• Design, develop, deploy and scale AI and agentic AI systems for clients and internal use.
• Collaborate with designers, engineers and analysts to identify AI use cases.
• Build rapid PoCs to demonstrate feasibility and value.
• Productionise AI systems within products and platforms.
• Iterate to improve performance, cost and reliability.
• Advise on AI strategy, adoption and scaling for clients.
• Support bids and internal R&D related to AI proposition.
• Keep abreast of evolving AI landscape to inform strategy.

Skills

AI systems

Python

Agentic tools

System design

Collaboration

Tools

Claude Code

OpenAI Codex

Job description

AI Builder, a Workflow & AI Orchestration Specialist, is recruiting to expand its AI engineering team in London Westminster. You will design, develop and scale AI and agentic AI systems to solve real-world problems for clients and internal use.

The role blends hands-on coding with system design, using Python and agentic tools. They welcome engineers from diverse backgrounds who are curious, collaborative and eager to learn in a fast-moving AI environment.