Senior AI Engineer

Senior AI Engineer LocationParisAddressRegus - Paris, 2 Rue Jean Lantier, Paris, Paris, 75001Employment TypeFull timeLocation TypeHybridDepartmentProduct & EngineeringEngineeringOur team shared’s mission is deploy AI agents to transform how patients and doctors connectWe believe healthcare shouldn’t be defined by missed calls, endless waiting lines, and overwhelmed staff. Patients and professionals deserve better.Vocca builds AI voice agents that answer every call instantly, schedule and reschedule appointments, and free up staff to focus on what matters most: care.Already trusted by 3500+ providers, we’re transforming the patient–provider relationship, one call at a time.Want to shape the future of healthcare?Join us !Discover our company culture and valuesHere is a product DemoMeet the teamArticle on our seed round of 5,5M$Senior AI EngineerYour missionWe're hiring a Senior AI Engineer with a strong background in building production AI systems on top of solid backend foundations (APIs, infra, data). You'll own the AI layer of our stack end-to-end, from voice agents and conversational flows to the evaluation and observability tooling that keeps them trustworthy, working hand-in-hand with the founders, the product team, design, and growth.At Vocca you will beDesigning AI systems that are fast, reliable, secure, and measurable.Scaling Vocca's voice agents to millions of calls across tens of thousands of medical practices.Taming non-determinism: building agents that are observable, evaluated continuously, and that degrade gracefully when models misbehave.Setting the bar for how AI engineering is done at Vocca, from architecture to evaluation to culture, and raising the level of the team.You'll set the bar for quality, velocity, and impact.Who you areThis is for you if:You've shipped LLM or agent systems in production, with a strong backend base (APIs, infra, data).You love full ownership: from architecture to deployment to monitoring.You measure instead of guessing: you care about evaluation, reliability, and explainability of AI behavior, not just speed.You manage the trade-off between performance, cost, and latency on every agent decision.You think simplicity is what makes software scale: you ship fast, but always with maintainability in mind.You're driven by AI, voice, and healthcare, and want to apply your skills to a meaningful problem.How we think about engineering at VoccaSpeed, Quality, and ReliabilityWe move fast. We prototype and ship often. But because we're in healthcare, and because our product is stochastic by nature, we do it with rigor:Our customers love digital solutions but demand quality, reliability, and confidentiality.Every model and prompt change is measured through continuous evaluation, not shipped on a hunch.Every line of code must be designed to minimize risk and protect sensitive data.We build a modular architecture designed for multi-client environments, with custom rules per medical center.A True Product-Tech CultureNo silos. Engineers work daily with product, sales, support, and operations to prioritize features that solve real problems on the ground.This job is a once-in-a-lifetime opportunity to:Shape the foundations of AI engineering at an early-stage startup where tech is the product.Have ownership over agents, architecture, evaluation, and tools.See your work used by thousands of doctors and millions of patients.Hiring Process1️⃣ Screening call with Charles / Pierre, our Talent Acquisition Partners (45 min)2️⃣ Hiring Manager interview with Pierrick, our Head of Engineering (45 min)3️⃣ Take-home test4️⃣ Take-home test debrief + Technical interview in our office with several members of the technical team (1h30)5️⃣ C-Level interview with Hugo Danet, our CTO (30 min)6️⃣ Reference check7️⃣ OfferWe aim to keep the process within 30 days. You’ll receive continuous feedback throughout.Why should you join Vocca?An entrepreneurial adventure, with a supportive, high-energy, execution-focused teamA...