Senior Backend Engineer | Valencia or Rotterdam

We’re looking for a Senior Backend Engineer to help design and build the scalable backbone of HelloPrint’s ecommerce platforms. Based in Valencia or Rotterdam, you’ll work on microservices, APIs, and integrations, while mentoring others and driving technical excellence.

You’ll take a leading role in shaping the architecture of our ecommerce infrastructure. You’ll build reliable APIs, optimize performance, and ensure our systems scale as we expand globally. Beyond coding, you’ll mentor teammates, influence technical direction, and contribute to a high-performance engineering culture.

What You’ll Do:

• Design, build, and maintain scalable backend services using PHP (Laravel) and modern frameworks.

• Develop and optimize RESTful and GraphQL APIs used across our platforms.

• Ensure performance, reliability, and security of backend systems.

• Collaborate closely with front-end engineers, QA, and product teams to deliver end-to-end features.

• Drive improvements in architecture, monitoring, and CI/CD pipelines.

• Mentor junior and mid-level engineers, sharing knowledge and raising the technical bar.

• Embrace automation and AI tools to accelerate delivery and improve quality.

What We’re Looking For:

• 5+ years of backend engineering experience, with strong knowledge of PHP/Laravel (or similar modern frameworks).

• Proven track record of building scalable systems (microservices, distributed architectures).

• Strong skills in API design and integration (REST, GraphQL).

• Solid understanding of databases (MySQL, MariaDB, Mongo) and caching strategies (Redis, Memcached).

• Familiarity with CI/CD pipelines, Docker, and cloud environments (AWS/GCP).

• Growth mindset: proactive, solution-oriented, and collaborative.

• AI-first thinking: comfortable using AI to accelerate coding, testing, and deployment.

  
  

Nice to Have:

• Experience with event-driven architectures (Kafka, RabbitMQ).

• Exposure to DevOps practices (infrastructure as code, Kubernetes).

• Knowledge of performance tuning, monitoring, and observability tools.

• Background in ecommerce or high-traffic consumer environments.

• Leadership experience in code reviews, architecture decisions, and mentoring.
  

What We Offer:

Depending on your location (Rotterdam or Valencia), here’s what you can expect at HelloPrint:

• 🚀 Growth & Ownership: A performance culture where you grow fast, take ownership early, and design your own path: with access to AI learning and real responsibility.

• 🌍 International Experience: Join a diverse team of 150+ HelloPrinters from 34+ nationalities, collaborating across countries, cultures, and functions.

• 💡 Impact & Innovation: Work in a fast-paced, tech-driven scale-up where your ideas shape the future of customised products.

• 🤝 Collaboration: Learn from experienced leaders, contribute to meaningful projects, and thrive in a team that’s serious about performance and people.

• 🎉 Celebrations & Culture: From work anniversaries and team events to monthly Keynotes and seasonal awards, we make time to celebrate wins and give back through volunteering.

• 💪 Wellbeing & Perks:

  • In Rotterdam: Free breakfast & lunch, HelloFit gym, Urban Sports Club discounts.

  • In Valencia: Free breakfast & lunch, Spanish classes, Urban Sports Club discounts and bi-weekly bootcamps.

• 💰 Competitive Rewards: We reward impact, not hours, a performance-first approach to compensation and benefits.

Are You Ready to Build the Future? This isn’t a job for just anyone. We need bold thinkers, fast executors, and AI-first problem solvers. If that sounds like you, apply now!