AI Application Engineer (LLM Agents & Automation) | London

We are looking for an AI Application Engineer to build AI-powered applications and agents that improve business workflows and productivity.

Working closely with business stakeholders, you will identify use cases, develop AI-driven solutions and integrate LLMs such as ChatGPT and Claude into internal applications.

This role suits a hands-on developer with practical AI project experience and a genuine interest in emerging AI technologies.

Key Responsibilities

• Develop AI agents and LLM-powered applications for internal use.
• Implement agent loops, tool/function calling and integrations with external systems.
• Work with stakeholders to identify automation opportunities and translate requirements into practical solutions.
• Integrate, test and improve AI tools and applications.
• Share knowledge of emerging AI technologies and best practices.

Requirements

• 3–5 years of relevant software development or AI application experience.
• Hands-on experience building AI applications or LLM-based projects.
• Understanding of AI agents, tool/function calling and agent execution loops.
• Experience integrating LLM APIs, such as OpenAI or Anthropic.
• Strong problem-solving, communication and stakeholder management skills.

Nice to Have

• Experience with LangChain, LangGraph, PydanticAI or similar frameworks.
• Background in fintech, financial services or technology companies.
• Experience with API integrations and workflow automation.

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