Senior Fullstack Engineer – Applied AI

Product Pulse; Barcelona; Presencial; EUR 50.000 - 70.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid work model

Autonomy in decision making

Impactful projects

Descripción de la vacante

A progressive technology firm in Barcelona is seeking a Senior Fullstack Engineer to join their innovative team. This role involves delivering features from concept to production, integrating advanced AI components, and contributing to architectural discussions. The ideal candidate thrives in dynamic settings, values clean code, and enjoys collaborative teamwork. This position offers a hybrid work model, where you'll spend two days a week at the office by the sea, allowing for flexibility and creativity in your work.

Formación

• Experience with fullstack development in a fast-paced environment.
• Curiosity about applied AI techniques and their practical uses.
• Strong focus on clean code and maintainable practices.

Responsabilidades

• Deliver features end-to-end across the frontend and backend.
• Collaborate during discovery and planning phases with product and design.
• Integrate AI components where they add value.
• Participate in architectural discussions for technical scalability.
• Ensure high standards of code quality and performance.

Conocimientos

Fullstack development

React

TypeScript

AI integration

Team collaboration

Herramientas

Docker

AWS

NestJS

Descripción del empleo

At Workfully, we’re building the first global recruitment marketplace where independent recruiters can grow, engage, and monetize their talent networks — connecting them to meaningful opportunities at innovative companies worldwide.

Our technology is designed to make recruiting more transparent, fair, and scalable. We’re a profitable early-stage company with clients like TravelPerk, OLX, Accenture, Inditex, and FreeNow, and we’re now expanding our engineering team to build the next generation of the Workfully platform.

The Role

We’re looking for a Senior Fullstack Engineer who’s passionate about product, user experience, and applied AI.

You’ll work end-to-end across the stack — from concept and design discussions to production-ready delivery — building features that make our platform smarter and more intuitive. You’ll collaborate with product and design early in the process, experiment with LLMs, embeddings, and semantic search, and help us bring real AI value into recruiting.

What You’ll Do

• Deliver features end-to-end across frontend and backend
• Collaborate with product and design during discovery and planning
• Integrate AI components (LLMs, embeddings, semantic search) where they add value
• Contribute to architectural discussions and ensure technical scalability
• Maintain high standards of code quality, performance, and testing

Our Stack

We work with a modern TypeScript-based stack:

• Frontend: React, Next.js, TailwindCSS
• Backend: NestJS, Sequelize, MariaDB / PostgreSQL
• Infrastructure: AWS (ECS, EC2, S3, CloudWatch), Docker, Auth0
• Testing & CI/CD: Jest, Testing Library, GitHub Actions
• Principles: SOLID, Domain-Driven Design, Clean / Hexagonal Architecture

Who You Are

• You thrive in fast-moving environments and enjoy building real products
• You’re curious about applied AI and eager to use it beyond experiments
• You’re pragmatic about trade-offs and focused on impact
• You value clean, maintainable code and collaborative teamwork

Why Workfully

We’re a small, product-driven team building technology that changes how recruiting works. You’ll have the autonomy to make decisions, see your impact fast, and work alongside a group of people who care deeply about what they build.

We work hybrid — two days a week from our sea-view office in Barceloneta, the rest wherever you work best.