- Location
- Lisbon
- Type
- Full-time
- Department
- IT
- Experience
- 7+ years
- Closing date
- Apr 29, 2026
- Source
- CareersPage
Description
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
