6 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.
Categories
About Fonoa
Fonoa builds a global tax automation platform for digital businesses, providing APIs and SaaS modules for tax ID validation, real-time tax determination, e‑invoicing, and returns/reporting. The system supports operations in 190+ countries and helps companies integrate compliance into their products. Founded in 2019 and headquartered in Zagreb, it is privately held; customers include Uber, Spotify, and Zoom.