We are looking for a Senior Frontend Engineer in Lisbon who's eager to embark on an exciting new opportunity! :muscle:

:star-struck: About KWAN

We connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.

:rocket: What is this challenge about

• Develop modern, production-ready React and TypeScript applications following existing frontend architecture and architectural guidelines.

• Transform complex architectural concepts into reusable React components, maintainable interaction patterns, and data-driven interfaces.

• Build complex workflows for fleet management, deployment, operational monitoring, and intralogistics.

• Integrate frontend applications with backend REST APIs, handling asynchronous data, loading states, error states, data synchronization, and user permissions.

• Transform complex, large datasets into intuitive, data-dense interfaces, operational monitoring interfaces, dashboards, KPI visualizations, and analytics views with filtering, aggregation, and drill-down capabilities.

• Write high-quality, secure code daily as a hands-on developer, developing complete features independently and debugging browser, frontend, and API integration issues.

• Maintain and improve software quality through unit testing, integration testing, end-to-end testing, static analysis, dependency management, code reviews, and refactoring.

• Optimize browser rendering, frontend performance, and usability while balancing information density and avoiding technical debt.

• Contribute to component-driven development and the team's design system.

• Collaborate closely with Product, Backend, DevOps, QA, and Robotics teams within an Agile development environment.

:hammer_and_wrench: What we are looking for

• 5+ years of advanced expertise in React, TypeScript, and modern JavaScript.

• Proficiency in Tailwind CSS, HTML5, CSS3, responsive design, adaptive UI development, and component-driven development.

• Deep experience handling real-time, high-frequency WebSockets, as well as REST and GraphQL APIs, asynchronous data handling, frontend state management, and data synchronization.

• Proven ability to optimize browser rendering and UI performance, processing fast-streaming data without blocking the UI thread.

• Experience building operational monitoring interfaces, analytics views, KPI visualizations, and data-dense dashboards.

• Demonstrated knowledge of core software engineering practices, including clean code, maintainability, refactoring, secure coding, performance optimization, error handling, and observability.

• Hands-on experience with automated testing practices, including unit testing, integration testing, and end-to-end testing (e.g. Jest/Vitest, Cypress or Playwright).

• Proficiency with modern development tools, including Git, pull requests, CI/CD pipelines, modern build tools, package managers, and dependency management.

• Experience working with Docker and containerized development environments within Agile product teams.

• Fluency in English.

:point_right: Do you meet most of the position requirements? Then grab this opportunity and apply now! :star-struck::muscle:

:sparkles: What we offer

• A project that matches your skills and ambitions, as well as your preferences for working policies and culture.

• A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income.

• An empowering and respectful work culture enriched with social and learning events.

• A People Experience Partner specially assigned to you - your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN.

• A relocation package and visa sponsorship for all our international hires.

:raised_hands: Some Words From Our Colleagues

“At KWAN, they make sure that I feel comfortable with the client I’m working for and that what I’m doing aligns with my career aspirations.”

- Luis Caldeira, DevOps @ KWAN

:point_right: Grab this opportunity, apply now! :star-struck::muscle:

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