Frontend Engineer (React.js)

One of our partners, a leading international tech company in the eCommerce space, is expanding their engineering team in Barcelona and looking for a Frontend Engineer to help shape their customer-facing digital experience.

We’re searching for developers who combine strong technical fundamentals with a product-driven mindset. You'll work in a dynamic, collaborative environment building modern frontend solutions using React, Node.js, and more.

What you’ll do:

• Build, test, and deploy isomorphic web applications using React.js and Node.js.
• Maintain and enhance microservices developed in Deno and Node.js.
• Contribute to the development of an internal CMS in Vue.js.
• Use Docker, Kubernetes, and AWS for modern DevOps workflows.
• Collaborate with stakeholders to deliver top-notch features and experiences.
• Engage in code reviews and cross-functional teamwork with FE/BE developers.

What we’re looking for:

• 3+ years of experience with JavaScript/TypeScript.
• Strong engineering mindset and a passion for scalable, maintainable code.
• Hands-on experience with GraphQL and REST APIs.
• Familiarity with Vite, Rollup, Babel/SWC, and modern JS toolchains.
• Experience with Redux or similar state management libraries.
• Comfortable working with Node.js (Deno is a plus).
• Testing proficiency using Jest, React Testing Library, and Enzyme.
• Deep Git knowledge and CI/CD experience (GitHub Actions or similar).
• Exposure to observability tools like Grafana and performance monitoring.
• Solid grasp of software principles (SOLID, DRY).
• Fluent English communication skills.

Perks and benefits:

• Hybrid model: 4 days onsite in our Poblenou, Barcelona office.
• Up to 32 vacation days depending on tenure (starting with 28).
• Work remotely up to 10 days/year from another EU country.
• Private health insurance.
• Flexible benefits (meal, transport, childcare vouchers).
• Employee discounts on products and fitness memberships.
• Access to LinkedIn Learning and language courses.
• Mental health and wellness support.
• Employee Share Purchase Plan.