Senior Frontend Developer

21 октября 2026 г.

Офис

Senior

Barcelona, Spain

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Нужен другой язык
испанский · уровень B2
Работа только из офиса

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Английский обязателен
уровень B2

Описание

A leading environmental services company in Spain is looking for a Senior Frontend Developer for the development team of its corporate urban-services management platform, based at its work centre in Balmes (Barcelona). The role is centred on a modern TypeScript frontend, a reusable corporate Design System and the transition from customer-specific applications to a single multi-tenant application configurable at runtime. The work covers accessibility, performance, frontend security and client-side observability in critical web applications used by public administrations. The developer is expected to define frontend patterns without direct UX support, collaborate with QA and DevOps, and mentor other technical profiles.

Обязанности

Develop and evolve the frontend layer of the corporate urban-services management platform
Implement and maintain the corporate Design System
Build modern web applications in multi-tenant environments
Define frontend patterns and quality criteria in the absence of direct UX support
Ensure accessibility, performance and consistency of the user experience
Work with architectures based on TypeScript
Collaborate with QA and DevOps teams to guarantee quality and efficient deployment
Participate in the transition towards a single application configurable at runtime
Contribute to client-side observability and monitoring
Ensure good frontend security practices
Mentor other technical profiles and take part in technical decision-making

Требования

Degree in Computer Engineering, Telecommunications or related training
Minimum 5-6 years of frontend development experience, with at least 2 years in a senior or technical leadership role
Solid experience with TypeScript and modern frontend frameworks (Angular, React or similar)
Experience developing complex interfaces, enterprise applications and reusable component-based architectures
Knowledge of state management, integration with REST/OpenAPI APIs and consumption of typed contracts
Knowledge of accessibility standards WCAG 2.1 AA
Experience in frontend performance optimization (code-splitting, caching, CDNs) and metrics such as Core Web Vitals
Experience with testing tools (Cypress or equivalents), linting, CI/CD and SAST controls in JavaScript/TypeScript
Knowledge of frontend monitoring and observability (Sentry, Grafana Faro or similar)
Knowledge of frontend security practices (secure cookies, CSP, HSTS, SRI)
Native Spanish and English at minimum B2 level

Условия

Permanent employment contract
Full-time schedule
Immediate incorporation
Continuous training plan
Possibilities of professional development in other services or activities
Job stability

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Senior Frontend Developer

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