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.