At Q-tech, we collaborate with the global leader in reusable packaging containers and pallets for the fresh produce supply chain, whose mission is to make that supply chain sustainable.

They run a closed-loop pooling system with more than 400 million containers in circulation and over 2.5 billion shipments a year. They serve 300+ retailers and 18,000+ growers in more than 50 countries. Their sustainability targets are validated by the Science Based Targets initiative (SBTi), and they aim to be net-zero and zero-waste by 2040.

In 2024 they opened a Digital Hub in Barcelona to drive digital initiatives across the fresh supply chain.

We are looking for a Senior Full Stack Software Engineer to join the Digital team that develops the company’s main customer platform. It is a multi-tenant, service-oriented platform that integrates around 30 software products and serves 14,000 weekly active users in 25+ languages, on web and mobile.

Responsibilities

Develop and evolve features on a platform.

Lead the platform’s modernization from traditional Java enterprise containers to a modern stack built on Spring Boot, React and microservices.

Separate and integrate microservices within a service-oriented architecture.

Help build a new module for automated asset tracking using digital chips, part of the platform’s role as the single customer-facing layer for new digital solutions.

Work with high-volume data.

Collaborate closely with the platform’s lead architect, who sets architecture guidelines and provides technical mentoring.

What is offered

Salary: €50,000 – €60,000 gross per year.

Hybrid model: 2 days a week in the Barcelona office.

Health assurance

Solid experience as a Full Stack Engineer with Java (Spring Boot) and React.

Experience with PostgreSQL.

Experience with service-oriented or microservices architectures.

A methodical, structured engineering approach, used to working in regulated environments with demanding quality and security standards.

Microsoft Azure experience is a plus.

Hands‑on experience with AI-assisted development tools is highly valued (this will be covered in the technical interview).

Barcelona

Sr. FullStack Engineer

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