Senior AI Engineer

Join Mendo, the AI Transformation Platform for enterprise clients. As a Senior AI Engineer, you'll own AI research and features, ship pragmatically, power analytics and AI recommendations, and build the AI practice. You'll work in a hybrid model from our Paris office and have a competitive salary with equity options.

• Diriger la recherche en intelligence artificielle et transformer les résultats en fonctionnalités qui seront intégrées dans les produits de l'entreprise.
• Construire des systèmes d'évaluation pour garantir que les fonctionnalités d'IA ne se dégradent pas silencieusement et optimiser les performances.
• Établir la direction de l'IA de l'entreprise, définir la feuille de route de l'IA et arbitrer les décisions liées à l'IA à travers les produits, l'ingénierie et les ventes.

Experience & expertise

• 6+ years in ML / AI engineering, with a track record of shipping models and AI features to production.
• Strong command of LLM fine-tuning, RAG, embeddings, and evaluation (golden sets, LLM-as-judge, regression tests).
• Experience optimising AI systems for cost, latency, and quality in production.
• Solid software engineering fundamentals — you ship and operate, not just prototype.
• Comfortable in Python and able to work across a TypeScript product codebase.
• Experience with small language models (SLMs) and on-device / on-prem model deployment is a strong plus.

Ways of working

• Ruthless pragmatism and a product-first mindset — user impact over technical novelty.
• Able to frame ambiguous AI problems and decide what's actually worth shipping.
• Clear communicator of AI trade-offs to non-technical stakeholders.
• Excellent command of French and English, both technical and professional.

Mindset

• Natural rigor and a feel for evaluation-driven development.
• Genuine curiosity for a fast-moving AI landscape — without chasing hype.
• Eager to grow into leading an AI team.
• Strong team spirit, autonomy, and a sense of priorities in a fast-moving scale-up.
• Alignment with our values: Learning, Innovation, Excellence, Kindness, Transparency.
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📈 What we offer

• Competitive package: €80,000–€95,000 base depending on level, plus BSPCE (equity) under our Series A policy.
• Own AI at Mendo: as our first dedicated AI Engineer, you'll define our AI direction and build the practice from the ground up.
• Real impact: your models and features ship to 100+ enterprise clients.
• Room to grow: build and lead an AI team as we scale next year.
• A learning environment: a team passionate about new technologies and generative AI.
• A stimulating workplace: a young, supportive culture where everyone helps each other.
• Flexibility: a hybrid 2-day/3-day remote model.
• Meaningful mission: helping make AI accessible and impactful for everyone.