AI Software Engineer (Real-Time Systems)

The Role

We’re building the next generation of real‑time conversational AI systems.

Our research team is focused on advancing the intelligence layer of our agents. We need a strong engineer to own the execution layer — the systems that make this intelligence work reliably, at scale, and in real time.

This role sits at the intersection of AI, backend engineering, and infrastructure . You will take ownership of the engineering backbone behind our AI agents: performance, latency, reliability, and scalability.

What You’ll Do

• Own and evolve the backend systems powering our conversational AI platform
• Design, build, and optimise real‑time systems with a strong focus on latency and performance
• Maintain and improve our server stack, pipelines, and production infrastructure
• Develop scalable APIs and services using Python and FastAPI
• Work closely with the AI research team to integrate new models, ideas, and agent capabilities into production
• Support and optimise integrations with multiple AI providers
• Identify bottlenecks, fix bugs, resolve tickets, and continuously improve system reliability
• Drive improvements in data accuracy, system performance, and real‑time responsiveness
• Write a significant amount of production code and continually improve existing systems

Requirements

• Strong backend engineering fundamentals with a product mindset
• Expert‑level Python skills and experience building production systems
• Strong experience with FastAPI and asynchronous programming
• Experience building low‑latency, high‑throughput systems in production environments
• Hands‑on experience with MLOps tooling (Docker, Kubernetes, GPU workloads)
• Experience working with LLMs, AI agents, or deploying AI systems into production
• Ability to work closely with research teams and translate ideas into scalable systems
• High ownership, speed, and pragmatism
• Background from a top engineering school in France is a strong plus

Role Clarification

• This is not a research role
• You will not be writing papers or training foundation models
• You will be the person who makes AI actually work in production

Benefits

• High ownership and autonomy
• Diverse, international team across Europe
• Exposure to cutting‑edge AI, voice, and enterprise deployments
• Fast‑paced environment with a strong learning curve
• 25 days holiday + public holidays
• Private healthcare (based on country—50% coverage for you in France, 100% for your kids)
• Swile in France only
• Pension contribution
• ESOP/VSOP (shares)