AI Applied Engineer

Cavendish Professionals; Greater London; On-site; GBP 70,000 - 120,000; Full time

Job summary

Cavendish Professionals partners with a growing AI-driven technology company to hire strong backend engineers who have built and shipped LLM and agentic systems into production.

You’ll own architecture through deployment, building scalable AI systems for lettings, property management and finance, and you’ll shape infrastructure as the business grows.

Join a team focused on multi-step agents, tool calling, evaluation, and continual improvement of performance and cost in production.

Qualifications

• 6+ years of software engineering experience, backend-focused.
• Production LLM/agent experience used by real customers or business teams.
• Ability to explain what you built, the challenges you faced and the decisions you made.
• Architectural judgement around when to use an LLM, deterministic code or human input.

Responsibilities

• Multi-step agents, multi-agent orchestration and tool calling.
• Structured outputs and reusable AI workflows.
• Evaluation frameworks, tracing and feedback loops.
• Improving reliability, latency, hallucination rates and cost.
• Scaling AI infrastructure as the business grows.

Skills

Backend engineering

LLM/Agent experience

Architectural judgement

Tools

LLM frameworks

Job description

I’m partnering with a growing AI-driven technology company looking for strong backend engineers who have built and shipped LLM and agentic systems into production.

You’ll build AI systems that support real business operations across lettings, property management and finance, with ownership from architecture through to deployment and ongoing improvement.

What you’ll work on:

• Multi-step agents, multi-agent orchestration and tool calling
• Structured outputs and reusable AI workflows
• Evaluation frameworks, tracing and feedback loops
• Improving reliability, latency, hallucination rates and cost
• Scaling AI infrastructure as the business grows

Who I’d love to speak with:

• Ideally 6+ years of software engineering experience, with a strong backend focus
• Production LLM/agent experience used by real customers or business teams
• Ability to explain what you built, the challenges you faced and the decisions you made
• Architectural judgement around when to use an LLM, deterministic code or human input
• A proactive, curious approach and a strong product mindset

AI side projects are a bonus — alongside hands‑on production experience.

If you enjoy building products, solving practical AI challenges and taking ownership in a startup environment, I’d love to hear from you.