Antai Ventures is a Barcelona-based venture studio with presence across Southern Europe and Latam. At Antai, we partner up and invest in the best co-founders to build integral companies willing to disrupt multi-billion dollar industries. We are looking for a Senior Full-Stack Engineer to join the founding team of one of our portfolio companies — a B2B SaaS platform that helps service companies manage the complex, day-to-day operations of their distributed frontline workforce. The vision is ambitious: build the operating system for an entire industry — starting with day-to-day operations, then expanding into deeper integrations across finance, HR, and everything else these companies need to run their business. AI isn't a feature we're bolting on — it's embedded from day one as a core capability that fundamentally changes how these companies operate.
This isn't a role where you'll be handed tickets — you'll be researching customer problems, crafting detailed specs, designing solutions, writing code, and shipping features end-to-end.



You'll work directly with the founders and be expected to bring strong judgment about what to build, how to build it, and when to keep things simple.
We need someone who is genuinely full-stack: comfortable across backend, database, frontend, mobile (web-based via Capacitor), and cloud infrastructure. Barcelona, hybrid (some office days)
Employment: Full-time
Proficient English required. Spanish not required, but a basic level is a plus.
Study customer problems deeply and translate insights into detailed functional and technical specs — then turn those specs into working software.
Design and build core backend systems powering workforce scheduling, real-time coordination, and operational workflows.
Build clean, well-structured APIs and data models that support web, mobile, and internal tools.
Develop the worker-facing mobile experience (web-based, via Capacitor) with a focus on simplicity for low-tech-savviness users.
Contribute to the AI ag

📌 Senior Full-Stack Engineer (Galicia)
🏢 Antai Ventures
📍 Galicia