Take the next step in your career at one of Barcelona’s leading tech hubs.

Your new company One of Europe’s leading consumer retailers is looking to hire a Fullstack Engineer to join its Platform team, a key function within the tech organization responsible for enabling product teams to build and scale high‑quality digital experiences efficiently.

Your new role You will join a high-impact Platform team working at the core of how software is built and operated, supporting multiple product teams and ensuring scalable, reliable, and efficient engineering practices across the organization.

Your main responsibilities will include:

Serving as a platform proxy for product teams, understanding their needs, unblocking shared challenges, and coordinating cross-team technical decisions Contributing to the backend orchestration service used across multiple produces, ensuring scalability, reliability, and proper documentation Building and maintaining shared applications such as back-office tools, working across both frontend and backend layers Managing and improving cloud infrastructure on GCP, including provisioning, configuration, and maintenance of shared environments Optimising and maintaining CI/CD pipelines using GitHub Actions to ensure stable and efficient delivery processes Enhancing observability by implementing and refining monitoring, alerting, and dashboards (e.g., Grafana) Writing clean, well-tested, and maintainable code, promoting best engineering practices Supporting and mentoring engineers across teams, sharing knowledge on platform, infrastructure, and architecture Participating actively in Agile ceremonies such as refinement, sprint planning,



and retrospectives

What will you need to fit in it 5+ years of experience as a Backend Engineer (some as a Fullstack) Strong experience with

TypeScript

and

Node.js

in production environments Frontend experience with

React , being able to build and maintain interfaces end-to-end Solid experience working with

GraphQL

(API design, queries, mutations); Apollo is a plus Hands-on experience with

MongoDB

(schema design, indexing, query optimisation) Experience working with GCP and infrastructure-as-code tools such as

Terraform (super nice to have) Experience with

CI/CD tools,

especially GitHub Actions Familiarity with event-driven architectures (e.g., Pub/Sub systems) Experience with observability tools such as Grafana Strong testing practices (unit, integration, and end-to-end) Strong communication skills and ability to collaborate across teams Advanced level of

English

What will you get in return Permanent contract, directly with the final company Competitive gross salary in line with your experience (up to 50k) Versátil working hours Offices located in Barceloneta or El Prat de Llobregat 27 days of vacation per year Training budget and language classes Young and dynamic tech environment with strong collaboration culture Long‑term professional development plan and exposure to cutting-edge technologies

Your next step If you are interested in this position, click on ‘apply now’ to send an updated copy of your CV, or give us a call. If this opportunity doesn’t match your profile but you are looking for a new role, please contact us and we can discuss it. We guarantee full confidentiality #LI-DNI

📌 Fullstack Developer React/Node/GraphQL (Barcelona)
🏢 Hays
📍 Barcelona