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SQLI Group is a digital agency, with 30 years leading the implementation and management of digital devices for a reinvented user experience. We are over 2500 talents in more than 13 countries and 3 continents. We are a human touch company & key partner of the largest international companies with general projects.
We #Perceive #Challenge #Deliver #Inspire
Job DescriptionWe 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.
What is this all about?
- 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.
- Contribute to design and implementation of complex API integrations and state management solutions.

Main Relationships
- Frontend and Backend Developers
- Product Owners & Managers
- UX/UI Designers
- QA Engineers
- Business Stakeholders

QualificationsWho are you?
- 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

📌 Front End Developer (Barcelona)
🏢 Sqli
📍 Barcelona