AI Engineer

Company: JR United Kingdom
Apply for the AI Engineer
Location: London
Job Description:

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At ReCulture, we’re not your typical recruitment agency. We’re talent matchmakers – connecting top talent with environments where they’ll thrive. Our approach goes beyond the surface, focusing on behaviours and values as much as skills. Partnering with clients like an in-house team but moving at the speed of an agency, we deliver long-term impact by ensuring the right values fit.

We’re looking for a highly skilled and innovative Founding Engineer to join our AI-driven startup. In this pivotal role, you’ll take ownership of building and optimising our client’s backend systems, integrating LLM APIs, and ensuring a seamless user experience. If you thrive in a fast-paced, experimental environment and want to shape the future of AI-powered products, this is the opportunity for you.

Key Skills and Responsibilities

  • Previous experience scaling chatbots with multiple agents
  • Proven experience with LLM APIs (OpenAI, Anthropic, or similar) developing advanced, non-trivial chatbots that go beyond simple LLM API calls, incorporating complex function calling, multi-step workflows, and dynamic tool integrations.
  • Experience working with MongoDB for chatbot memory and data storage
  • Ability to think from a user’s perspective, beyond just engineering tasks
  • Experience integrating eCommerce APIs (Shopify, Wix, BigCommerce)
  • Develop, optimise, and maintain our architectural improvements for scalability and complex features
  • Fine-tune LLM APIs (OpenAI, Anthropic, etc.) to enhance chatbot functionality
  • Debug complex technical issues across frontend, backend, and LLM interactions
  • Implement prompt chaining and refining techniques to improve chatbot accuracy
  • Work closely with the team to experiment with new AI tools and APIs (like DeepSeek)
  • Automate repetitive tasks, improve CI/CD pipelines, and enhance development efficiency.

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Posted: May 3rd, 2025