Sr. FullStack (Java/React)

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.

Requirements

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). What is offered Salary: €50,000 – €60,000 gross per year. Hybrid model: 2 days a week in the Barcelona office. Health assurance Learning budget