
Senior Frontend Engineer | Valencia or Rotterdam
- On-site
- Technology
Job description
We’re looking for a Front-End Engineer to help us craft seamless, high-performing experiences across our ecommerce platforms. Based in our office in either Valencia or Rotterdam, you’ll own features end-to-end, collaborate closely with designers and backend engineers, and bring our ambitious product vision to life.
As a Front-End Engineer, you’ll be responsible for turning designs and ideas into fast, intuitive, and pixel-perfect experiences. From checkout flows to dashboards, your work directly impacts thousands of customers every day. At HelloPrint, front-end isn’t just about code: it’s about performance, usability, and building with scale in mind.
What You’ll Do:
Build and maintain high-quality front-end features with React, Next.js, and TypeScript.
Collaborate with product managers and designers to turn concepts into functional, polished features.
Ensure accessibility, cross-browser compatibility, and responsive design standards.
Work closely with backend engineers to design robust APIs and data flows.
Continuously improve performance, scalability, and maintainability of our front-end applications.
Contribute to our component libraries and design systems to keep quality and consistency high.
Share knowledge, mentor teammates, and bring ideas to raise the bar in front-end engineering.
Job requirements
What We’re Looking For:
4+ years of professional experience in front-end engineering.
Strong skills in React, Next.js, JavaScript/TypeScript, HTML5, and CSS3.
Proven experience in building performant, scalable, and responsive interfaces.
Knowledge of testing practices (e.g. Jest, React Testing Library, Cypress).
Familiarity with modern tooling and workflows (Webpack, Vite, GitHub Actions, CI/CD).
Growth mindset: proactive, curious, and eager to experiment with new approaches.
AI-first thinking: comfortable using AI tools (e.g. GitHub Copilot, design-to-code) to accelerate development.
Nice to Have:
Experience with content platforms (Contentful, Sanity) or multi-brand architectures.
Familiarity with GraphQL and API design.
Exposure to design systems and UI/UX best practices.
Hands-on with performance, accessibility, or end-to-end testing frameworks.
Background in ecommerce or SaaS environments.

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!
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