Fonoa

Senior/Staff Software Engineer, AI

Fonoa
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4 months ago
London, United KingdomSenior / Staff+

Responsibilities

  • Build fast, intuitive AI-powered product features for customer-facing systems.
  • Partner with product and design to prototype and iterate on intelligent workflows and user interactions.
  • Design backend services for natural-language interfaces, smart suggestions, and agentic systems.
  • Optimize prompts, shape model behavior, and improve model evaluation pipelines.
  • Build and evolve internal and external agent platforms.
  • Enable technical and non-technical teams to use AI more effectively.
  • Experiment with, operate, and continuously improve AI systems in production.

Requirements

  • 5+ years of experience building customer-facing products at a high-quality software company.
  • Strong track record delivering complex, end-to-end product features with visible impact.
  • Ability to independently shape problems and drive solutions with high ownership.
  • Deep understanding of LLMs, prompt engineering, agent frameworks, and AI safety/security practices.
  • Experience with RAG architectures and model evaluation.
  • Strong product and engineering instincts, including the ability to balance speed, quality, and pragmatism.
  • Comfort operating in fast-moving, ambiguous environments.
  • Proven ability to experiment and deliver in an evolving technology landscape.
Fonoa

About Fonoa

201-500 employees
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