We are:

Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.

With the right people and the right ideas, there’s no limit to what we can achieve

Are you a fit?

Sounds awesome, right? Now, let’s make sure you’re a good fit for the role:

Key Responsibilities

- Meetings with the experimentation team.
- Analysis, development, and tracking of requirements.
- Development of A/B tests for web platforms.
- Review and validation of experiments through unit and manual testing.
- Cross-functional collaboration with multiple teams to define requirements and request application updates or changes.
- Close collaboration with UI/UX designers.
- Repository management.
- Code reviews and peer reviews.

Must-have Skills

- More than 5 years of experience as a Frontend Engineer.
- In-depth knowledge of core web technologies, including JavaScript and TypeScript.
- Strong understanding and application of HTML best practices.




- Extensive hands-on experience with vanilla CSS for responsive and scalable layouts.
- Proficient in version control using Git and GitHub.
- Proven experience in developing and maintaining reusable web components.

Nice-to-have:

- AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.
- Knowledge of A/B testing platforms such as Optimizely or Statsig.
- Experience developing applications using React.
- Knowledge of the WordPress platform and its end products.
- Experience using Adobe Analytics.
- Familiarity with tools such as Gulp, ESLint, and npm.
- Experience working with REST APIs and third-party web services.
- Experience developing projects using frameworks.

What we offer:

- A High-Impact Environment
- Commitment to Professional Development
- Flexible and Collaborative Culture
- General Opportunities
- Vibrant Community
- Total Rewards

*Specific benefits are determined by the employment type and location.

Find out more about our culture here

📌 Javascript Developer (Barcelona)
🏢 Talent
📍 Barcelona