H

Senior Lead Engineer for AI Platform

Haystack • United Kingdom
Remote
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AI Summary

We are seeking a Senior Lead Engineer to build the end-to-end architecture, security, performance, and integration of our innovative workflow and intelligence platform. The ideal candidate will have deep Firebase expertise and experience building complex AI applications using LLMs and agentic workflows. This is a hands-on lead engineering role with a clear path to CTO as the company scales.

Key Highlights
Build end-to-end architecture, security, performance, and integration of the platform
Lead development of complex AI applications using LLMs and agentic workflows
Contribute to building out the engineering function, including hiring, structuring, and mentoring
Key Responsibilities
Build the end-to-end architecture, security, performance, and integration of the platform
Work closely with the Head of Product to transform specs and prototypes into production-quality code
Contribute to building out the engineering function, including hiring, structuring, and mentoring
Technical Skills Required
Firebase LLMs Agentic workflows
Benefits & Perks
Fully remote work
Stock options in a rapidly scaling company
Excellent opportunities for progression and development

Job Description


We are working with an early-stage startup that is building an innovative workflow and intelligence platform powered by agentic AI, multimodal analysis, and domain-specific insight.

The Role

  • Build the end-to-end architecture, security, performance, and integration of the platform
  • Work closely with the Head of Product to transform specs and prototypes into production-quality code
  • Lead the development of complex AI applications utilising LLMs and agentic workflows
  • Contribute to building out the engineering function, including hiring, structuring, and mentoring
  • Take on a hands-on lead engineering role with a clear path to CTO as the company scales

What You'll Need

  • Deep Firebase expertise (Firestore, Cloud Run, Auth, Security Rules) building production systems
  • Demonstrable experience building and deploying complex AI applications using LLMs and agentic workflows
  • Familiarity with vector databases (e.g., pgvector, ChromaDB, Pinecone)
  • Strong desire to lead and grow into a CTO role

What's On Offer

  • Fully remote work with frequent team meetups
  • Stock options in a rapidly scaling company
  • Excellent opportunities for progression and development

Apply via Haystack today!


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