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React Developer

Tecnologia
Welvaart
Lisbon, PortugalHá 3 semanasAté 30/05/2026
Tempo inteiroPresencial

Descrição da vaga

  • *About Welvaart**
At Welvaart, we create
  • *technology solutions**
that put people at the center.

Our close leadership style and flexible culture of growth empower our teams and elevate the quality of our delivery. We combine

  • *rigor**
,
  • *innovation**
, and
  • *empathy**
to drive projects that transform businesses and build lasting relationships of trust.

We complement this vision with a performance‑driven

  • *Digital Marketing**
offering, helping companies strengthen their visibility, enhance their online presence, and accelerate growth through smart, measurable strategies.
  • Project*
We are seeking a highly skilled Senior React Developer with at least seven years of professional experience building robust, scalable, and high‑performance web applications. The ideal candidate has a strong foundation in modern JavaScript frameworks, deep knowledge of React best practices, and a passion for creating seamless user experiences.
  • Role
  • Develop, maintain, and optimize complex front‑end features using React, JavaScript/TypeScript, and modern UI frameworks.
  • Architect clean, scalable, and reusable components following industry best practices.
  • Collaborate with UX/UI designers to translate wireframes into responsive, user‑friendly interfaces.
  • Integrate RESTful APIs and GraphQL services into the front-end application.
  • Lead code reviews, mentor other developers, and ensure adherence to coding standards.
  • Identify performance bottlenecks and implement efficient solutions.
  • Stay up-to-date with the latest trends in front-end development, frameworks, and tooling.
  • Work closely with backend engineers to ensure seamless integration across the stack.
  • Contribute to technical decision-making, architectural planning, and long-term front-end strategy.
  • We are looking for
  • 7+ years of professional experience in front-end development.
  • Strong expertise in React, React Hooks, and functional component architecture.
  • Solid knowledge of JavaScript (ES6+) and TypeScript.
  • Hands-on experience with state management tools such as Redux, Zustand, or Recoil.
  • Familiarity with React Query, Next.js, or similar modern frameworks.
  • Strong understanding of HTML5, CSS3, and responsive design principles.
  • Experience with testing frameworks (Jest, React Testing Library, Cypress).
  • Knowledge of version control systems, particularly Git.
  • Ability to write clean, well‑documented, and maintainable code.
  • Excellent problem‑solving skills and a proactive mindset.
  • What you can discover with us?
  • Be part of a tech start-up
  • Different scopes of project in different sectors
  • Structure of fairness and equity salary (Consultant Profile)
  • Training & Certification
  • Career Path management
  • More than 30 Partnerships
  • UNLEASH THE POWER OF YOUR CAREER
Keywords
reactreact-jsinsurance-consulting-and-technologydigital-marketingjavascripttypescriptmicrosoft-typescriptuser-interface-uipolicies-and-practicesuser-experience-uxmobile-app-user-experiencewireframinggraphqlcode-reviewmentoringprogramming-style-guidefront-end-developmenttraining-and-developmentseamless-integrationplanning-and-forecastingelectrical-engineering-and-planningplanning-and-designcomponentes6state-local-municipalreduxjszustandreact-querynext-jshtml-5html5css-3visual-art-designproduct-development-and-designtesting-and-analysisjestreact-testing-librarycypresssoftware-version-managementrevision-managementsource-code-managementversion-controlembedded-control-automationstartupsexternal-workforcetraining-certificationeducation-trainingpower-and-cooling

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