We build an AI movement analysis platform that extracts real performance data from smartphone video in real time. Our dataset spans 82,000 users across 190 countries, trained on real-world conditions, not labs. We are launching three product tracks in August 2026 and need a back-end engineer who can hold infrastructure together under real delivery pressure.
What you will own:
· The shared back-end infrastructure supporting our mobile app (B2C), our B2B solution, and the AI/ML layer
· Database design and performance as we scale across product tracks
· Authentication, API architecture, and the connections between front end, back end, and ML systems
· Reliability and maintainability: you will be one of two back-end engineers, so your work has direct impact
What we are looking for:
· 3–6 years back-end experience, with at least 2 years on mobile app back ends
· Strong foundations in API design, database modelling, and authentication
· Experience working alongside ML/AI teams
· Someone who communicates clearly, flags blockers early, and takes ownership
Nice to have:
· Experience with sports tech, health tech, or real-time data applications
· Startup experience: you know what it means to ship under pressure
What we offer:
· Direct impact: you will be close to product decisions, not buried in documents
· A technical team that uses modern tooling (Claude, Cursor, and our own AI layer)
· Hybrid setup in Braga with flexibility
· Competitive salary for the right profile
· Possibility of stock options as we grow
Stack: to be confirmed during the process. We will be upfront on the first call.
Pagamento: 2 000,00€ - 4 000,00€ por mês
Localização do trabalho: Trabalho remoto híbrido em Braga
