Senior Full-Stack Engineer - AI-Native B2B SaaS

Antai Ventures; Laza; Híbrido; EUR 90.000 - 130.000; Jornada completa

Descripción de la vacante

Antai Ventures in Barcelona is seeking a Senior Full-Stack Engineer to join the founding team of a B2B SaaS platform that streamlines frontline workforce operations.

You will own features end-to-end, research customer problems, design specs, write code, and ship with founders, across backend, frontend, and cloud infrastructure.

The role emphasizes AI-augmented development, local-first tech, and strong judgment on what to build, with a hybrid onsite office in Barcelona.

Formación

• Experience designing and operating production systems.
• Strong in TypeScript, SQL and modern web frameworks.
• Ability to own systems end-to-end.
• Proactive, research-driven with good architectural judgment.

Responsabilidades

• Study customer problems 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 agent’s backend — the infrastructure that lets it resolve coverage incidents, contact workers, and take autonomous actions.
• Manage and evolve cloud infrastructure, CI/CD pipelines, and developer tooling.
• Improve reliability, observability, and performance across the system.
• Build integrations with other business software the industry already uses — accounting, payroll, and other operational tools.

Conocimientos

TypeScript

SQL

Vue

Nuxt 4

PostgreSQL

ZenStack/Prisma

ElectricSQL

TanStack DB

Capacitor

CI/CD

Herramientas

Vue

Nuxt UI

ElectricSQL

TanStack DB

Capacitor

Descripción del empleo

Antai Ventures in Barcelona is seeking a Senior Full-Stack Engineer to join the founding team of a B2B SaaS platform that streamlines frontline workforce operations.

You will own features end-to-end, research customer problems, design specs, write code, and ship with founders, across backend, frontend, and cloud infrastructure.

The role emphasizes AI-augmented development, local-first tech, and strong judgment on what to build, with a hybrid onsite office in Barcelona.