Senior AI Platform Engineer: Multi-Agent & LLM Orchestration

We Love AI Jobs; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

Travtus is seeking an AI Engineer to design, build, and optimise the core AI platform capabilities powering agent-based products and workflows. You will shape how LLM-powered agents are designed, orchestrated, tested, and improved in production, and specify interactions with tools, APIs, and downstream services.

You will own the LLM and prompt tooling lifecycle from management to evaluation and continuous improvement, working with platform and product engineers to deliver scalable, usable AI

Qualifications

• Expertise in building and deploying LLM-based workflows.
• Strong background in prompt engineering and evaluation.
• Experience with agent orchestration, tool integrations, and platform design.

Responsibilities

• Design multi-agent prompts and orchestration patterns for production workflows.
• Own prompt tooling, evaluation, testing, and optimization across the LLM lifecycle.
• Monitor, debug, and improve agents and AI workflows in development and production.
• Define APIs, contracts, and integration patterns for agents, tools, and services.
• Lead research and selection of frameworks for orchestration, observability, and deployment.
• Carry out model selection and implement tool-calling patterns for agent-based systems.

Skills

LLM application

Prompt engineering

Multi-agent orchestration

API design

Function calling

LLM evaluation

Observability/Monitoring

Model selection

Job description

Travtus is seeking an AI Engineer to design, build, and optimise the core AI platform capabilities powering agent-based products and workflows. You will shape how LLM-powered agents are designed, orchestrated, tested, and improved in production, and specify interactions with tools, APIs, and downstream services.

You will own the LLM and prompt tooling lifecycle from management to evaluation and continuous improvement, working with platform and product engineers to deliver scalable, usable AI