Front End Developer

1 week ago Be among the first 25 applicantsSQLI Group is a digital agency, with 30 years leading the implementation and management of digital devices for a reinvented user experience.We are over ** talents in more than 13 countries and 3 continents.We are a human touch company & key partner of the largest international companies with global projects.We#Perceive#Challenge#Deliver#InspireJob DescriptionWe are looking for afront-end developerwith 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 RelationshipsFrontend and Backend DevelopersProduct Owners & ManagersUX/UI DesignersQA EngineersBusiness StakeholdersQualificationsWho 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 reviewing code with a focus on quality and scalability.Additional InformationWhat do we offer?Permanent contract.Hybrid policy work.(1 day office, 4 days home office)Competitive salary.Flexible Remuneration (Meal vouchers, kinder garden, Public Transport/Mobility)Private health insurance (including dental care).Juno Journey Premium member platform with a lot of on-line learnings (certifications, courses, etc).Individual yearly training and certification budget.Work Schedule Monday to Friday.Intensive working hours on Fridays and all week in July and August.Full salary coverage for sick leave.Relocation package.Data protection noticeSQLI 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 **** 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 **Seniority levelMid-Senior levelEmployment typeFull-timeJob functionInformation TechnologyIndustriesIT Services and IT ConsultingReferrals increase your chances of interviewing at SQLI by 2xGet notified about new Frontend Developer jobs inBarcelona, Catalonia, Spain .#J-*****-Ljbffr

Who 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 reviewing code with a focus on quality and scalability.

Hybrid policy work. (1 day office, 4 days home office) Competitive salary. Flexible Remuneration (Meal vouchers, kinder garden, Public Transport/Mobility) Private health insurance (including dental care). Juno Journey Premium member platform with a lot of on-line learnings (certifications, courses, etc). Individual yearly training and certification budget. Work Schedule Monday to Friday. Intensive working hours on Fridays and all week in July and August. Full salary coverage for sick leave. 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 ** 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 ** Seniority level

Madrid, España

1 week ago Be among the first 25 applicants 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 ** talents in more than 13 countries and 3 continents. We are a human touch company & key partner of the largest international companies with global projects. We #Perceive #Challenge #Deliver #Inspire