Senior AI Agent Platform Engineer

Vallum Associates; City Of London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Vallum Associates in London is hiring an AI Agent Developer to own the technical delivery of an enterprise AI agent platform that enables task automation for Finance Operation users. You will combine architectural design with hands-on full-stack coding to build secure, scalable services and experiences for developers and business users.

You will integrate LLMs, AI agents and knowledge augmentation, from requirements through coding, testing and orchestration, applying modern DevSecOps practices

Qualifications

• 8+ years in backend/platform engineering or enterprise delivery.
• Experience delivering AI solutions into production in a commercial environment over the past three years.
• Strong system thinking with a focus on resilience, scalability, high availability, maintainability and performance.

Responsibilities

• Lead architecture and implementation of an AI agent platform (hands-on).
• Translate model capabilities into reusable components and SDKs.
• Embed AI capabilities into business workflows and establish quality/measurement practices.
• Deliver production-grade cloud-native services with CI/CD, DevSecOps and observability.

Skills

Python

React

System design

Architecture judgement

Performance

Security best practices

Tools

LangChain

LangGraph

Claude Code

Codex

Cursor

Copilot

Kubernetes

CI/CD tooling

Google Cloud

Job description

Vallum Associates in London is hiring an AI Agent Developer to own the technical delivery of an enterprise AI agent platform that enables task automation for Finance Operation users. You will combine architectural design with hands-on full-stack coding to build secure, scalable services and experiences for developers and business users.

You will integrate LLMs, AI agents and knowledge augmentation, from requirements through coding, testing and orchestration, applying modern DevSecOps practices