AI Engineer (Platform)

We’re nPlan, a Series B startup backed by leading investors, including GV (formerly Google Ventures) and DeepMind’s founder, Demis Hassabis. Our technology helps the world’s biggest construction projects make faster, more confident, data-driven decisions.

By combining one of the world’s largest datasets of project plans with advanced machine learning, we forecast project outcomes and reduce risk — reshaping how infrastructure gets built.

We work with complex graph data (each with 10,000+ nodes), applying multiple ML and LLM approaches to understanding the data, extracting meaningful insights from it using a proprietary forecasting engine, and empowering deep human interactions - all of which must work efficiently and robustly in production.  As a startup, we also keep agile in a fast-moving environment!

We are looking for an AI Engineer (Platform) to join our Engineering team.
You’ll drive the design and implementation of AI features across our product set, taking ideas from inception to release - working with the Product organisation as fellow product and research engineers.

This role is ideal for someone who thrives on technical depth, intellectual challenge, and impact at scale.
You’ll work alongside top engineers, machine learning specialists, and AI experts, shaping the future of project intelligence.

We’re after specialists who bring both expertise and curiosity.

For this role, we are looking for someone who:

• Keeps up to date with the latest developments in AI and loves to experiment with new models
• Has shipped LLM and generative AI-based applications to production
• Is really comfortable working with Python, building APIs, with cloud-based backends
• Thrives when things are initially ambiguous, finding a path towards certainty
• Has strong communication and collaboration skills
• Please mention the word ‘crane’ in your application form

We care more about potential and drive than perfection. If you’re excited by what we’re building, we want to hear from you. If you understand the nuances of agentic frameworks, eval frameworks and/or the causes of hallucination, you’ll feel right at home here.

• Competitive salary of £70,000-£100,000 and generous equity — when nPlan succeeds, so do you.
  
• Flexible hours, so long as you can do our core hours of 11am-3pm (UK timezone), Mon-Fri, we’re happy. You can also work remotely, or at our Shoreditch office HQ.
  
• Uncapped holiday, private medical insurance, personal learning and development budget, enhanced family and sick leave, and more.
  
• Room to grow — we’re approaching 50 people and scaling fast.
  
• Guided by our values: Learn from Everything. Be Radically Truthful. Aim High, Run Fast.
  

We’re a curious, diverse, and mission-driven team united by a belief that better data can change how the world builds.
We value openness, honesty, and diversity of thought — and believe the best ideas win, no matter where they come from.

Expect openness, collaboration, and balance — plus socials and offsites, of course!

1. Once you’ve applied, you will hear from us within a week.
   
2. Interview stages typically include:
   
   • A 30-minute intro chat
     
   • A deep-dive technical or domain interview
     
   • An interview focusing on our culture and values
     
   • A final stage to test collaboration with our team (on-site or remote)
     
3. We aim to complete the process within 3–4 weeks but can move faster if necessary.
   

We want every candidate to have a positive experience — and we’ll keep you informed every step of the way.

We’re committed to building a diverse and inclusive workplace and we welcome applicants from all backgrounds.
If you need adjustments during the hiring process, please let us know.