SQLI Group is a digital agency, with 30 years leading the implementation and management of digital devices for a reinvented user experience. We are a human touch company & key partner of the largest international companies with integral projects.

We are looking for a front-end developer with proven experience in architecture and design patterns. Working autonomously, you he/she implement front-end scripting on high-impact projects, promoting best practices and ensuring the scalability and performance of our applications. Deploy all teams decisions in large-scale React/Next.js applications.

Define and implement modern front-end patterns, rendering strategies, and scalable structures. Collaborate with backend engineers, designers, and product managers to align architectural vision with business goals. Guide performance optimization through SSR, CSR, and ISR strategies.

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Frontend and Backend Developers UX/UI Designers Proven experience coding in large ecommerce complex React or Next.js projects. Deep expertise in JavaScript/TypeScript and advanced design patterns. Strong ability to optimize performance and manage rendering strategies (SSR, CSR, ISR). Solid grasp of data structures and algorithms,



and how they impact front-end performance.

Experience working with complex API integrations and modern state management (Zustand, Redux, TanStack, etc.). Capable of mentoring other developers and reviewing code with a focus on quality and scalability. Permanent contract. Hybrid policy work. (1 day office, 4 days home office) Private health insurance (including dental care). Individual yearly training and certification budget.

Work Schedule Monday to Friday. Relocation package. Data protection notice SQLI Group ensures that applicants' personal data is processed as required by the EU General Data Protection Regulation (GDPR) and the Ley de Protección de Datos 3/2018 of the Spanish Kingdom.

Personal data is processed for the purpose of carrying out the hiring process and joining to our talent community. You can exercise your rights in terms of General Data Protection and digital guarantees through dataprotection.Seniority level Mid-Senior level Employment type Full-time Job function Information Technology Industries IT Services and IT Consulting Get notified about new Frontend Developer jobs in Barcelona, Catalonia, Spain .

📌 Front End Developer - Hybrid (Barcelona)
🏢 Sqli
📍 Barcelona