
DataSmart
Frontend javascript developer
Lisbon, Porto, Braga, Coimbra
July 21, 2026
Hybrid
Frontend JavaScript Developer
# Think Data Be Smart #
About Us: DataSmart is a Portuguese company, positioning itself as a consulting company of excellence, with over 20 years of existence. We are specialized in Technologies and Information Systems services, for the Portuguese and International markets. We pride ourselves on fostering a culture of involvement, experience, and excellence.
Join our team as a Frontend JavaScript Developer (Hybrid – Lisbon, Porto, Coimbra, or Braga)!
What You’ll Do:
- Develop and maintain modern, responsive web applications using JavaScript and contemporary frontend frameworks.
- Build intuitive and user-friendly interfaces that deliver exceptional user experiences.
- Collaborate with UX/UI designers, backend developers, and product teams to deliver high-quality solutions.
- Develop reusable, maintainable, and scalable frontend components.
- Integrate frontend applications with RESTful APIs and backend services.
- Optimize applications for performance, accessibility, and cross-browser compatibility.
- Participate in code reviews and contribute to frontend best practices and coding standards.
- Support CI/CD processes and contribute to the continuous improvement of development workflows.
Qualifications:
- 3+ and 5+ years of professional experience in Frontend Development.
- Strong proficiency in JavaScript (ES6+), HTML5, and CSS3.
- Hands-on experience with at least one modern frontend framework, such as React, Vue.js, or Angular.
- Experience integrating RESTful APIs and working with asynchronous data.
- Knowledge of responsive design, accessibility, and modern UI development best practices.
- Experience with Git and collaborative development workflows.
- Familiarity with Agile/Scrum methodologies.
- Knowledge of TypeScript, state management libraries (Redux, Pinia, NgRx), or modern build tools (Vite, Webpack) is a plus.
- Strong analytical, troubleshooting, and problem-solving skills.
- English proficiency at a professional level (minimum B2).
- Living in Portugal and available to work in a hybrid model.
At DataSmart, you will have the opportunity to integrate into a solid company and participate in projects of high recognition, nationally and internationally, with an appealing technological environment and career progression.
Excellence in the way to the future!
Connect with Us
Follow us on LinkedIn for updates on career opportunities, company news, and industry insights! For further details, visit us at www.datasmart.pt
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