Senior React Software Engineer - Barcelona - (Hybrid)

Posted 2 Days Ago
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Barcelona, Cataluña, ESP
Hybrid
Senior level
Information Technology • Consulting
The Role
Build scalable, maintainable frontend applications using React, JavaScript, and Next.js. Develop reusable component libraries and design systems with Storybook and CSS-in-JS, ensuring WCAG 2.1 AA accessibility. Write clean, tested, documented code; optimize performance and cross-browser behavior; and collaborate with Product, Design, Backend, clients, and stakeholders. Work in Agile environments and use AI tooling to improve development workflows.
Summary Generated by Built In

We are:
Wizeline, a global AI-centric 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:

Must-have Skills

To be successful in this role, you must have:

  • Frontend: Strong hands-on experience with React, JavaScript, and Next.js.

  • Styling: Experience working with CSS-in-JS solutions.

  • Component Libraries & Design Systems: Experience building, maintaining, or working with reusable component libraries and design systems.

  • Storybook: Hands-on experience using Storybook for developing, documenting, and testing UI components.

  • Accessibility: Strong understanding of web accessibility principles and experience developing interfaces that meet WCAG 2.1 AA standards.

  • Frontend Architecture: Ability to design and implement scalable, maintainable, and high-quality frontend solutions across different types of products.

  • Code Quality: Strong focus on writing clean, reusable, tested, and well-documented code.

  • Collaboration: Ability to work closely with Product, Design, and Backend teams to deliver high-quality user experiences.

  • Communication: Strong communication skills in English.

Nice-to-have Skills
  • BS/MS in Computer Science, Engineering, or a related subject.

  • Experience working directly with clients or stakeholders.

  • Hands-on experience working in an Agile environment.

  • Strong understanding of modern web standards, including HTML5 and CSS3.

  • Experience with responsive design and cross-browser development.

  • Strong understanding of UI/UX principles and user-centered design.

  • Experience contributing to or establishing frontend design systems and component standards.

  • Experience with frontend testing frameworks and practices.

  • Experience optimizing frontend applications for performance, scalability, and maintainability.

  • Experience working across different products, architectures, and technology stacks.

Nice-to-have
  • AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, coding, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.

What we offer:

  • Competitive compensation & total rewards

  • Health benefits & wellness programs

  • Savings & retirement plans

  • Global mobility opportunities

  • Flexible work policy and remote-friendly approach

  • Happy hours, gaming tournaments, sports activities & more

  • Continuous learning & training programs with WizeAcademy

  • Free certifications in cloud technologies and coding languages

Find out more about our culture here.

Skills Required

  • Strong hands-on experience with React, JavaScript, and Next.js
  • Experience with CSS-in-JS solutions
  • Experience building, maintaining, or using reusable component libraries and design systems
  • Hands-on experience with Storybook for UI component development, documentation, and testing
  • Strong understanding of web accessibility and experience meeting WCAG 2.1 AA standards
  • Ability to design and implement scalable, maintainable frontend architecture
  • Ability to write clean, reusable, tested, and documented code
  • Ability to collaborate with Product, Design, and Backend teams
  • Strong English communication skills
  • BS or MS in Computer Science, Engineering, or a related field
  • Experience working directly with clients or stakeholders
  • Experience in an Agile environment
  • Understanding of HTML5, CSS3, responsive design, and cross-browser development
  • Understanding of UI/UX principles and user-centered design
  • Experience contributing to or establishing frontend design systems and component standards
  • Experience with frontend testing frameworks and practices
  • Experience optimizing frontend applications for performance, scalability, and maintainability
  • Experience across different products, architectures, and technology stacks
  • Proficiency with AI tools for coding, research, analysis, drafting, or process automation

Wizeline Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Wizeline and has not been reviewed or approved by Wizeline.

  • Healthcare Strength — Core coverage spans medical, dental, vision, life and disability insurance, with private medical commonly included in Mexico. Additional support such as EAP and wellness programs is also referenced.
  • Leave & Time Off Breadth — Paid vacation, holidays, sick leave, volunteer time, and parental leave are called out, alongside flexible or remote work options. Unlimited PTO is mentioned in some contexts.
  • Retirement Support — Savings and retirement elements appear across regions, including a 401(k) in the U.S. and a savings fund and profit sharing in Mexico. These components provide structured long-term financial benefits.

Wizeline Insights

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The Company
HQ: New York, NY
1,444 Employees
Year Founded: 2014

What We Do

Wizeline, a global technology services provider, builds the best digital products and platforms at scale. We focus on measurable outcomes, partnering with our customers to modernize core technologies, mature data-driven capabilities, and improve user experience.

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