Staff Frontend Developer

Betway Global; Barcelona; Presencial; EUR 90.000 - 140.000; Jornada completa

Descripción de la vacante

Betway Global is seeking a Staff Frontend Engineer to guide our React/Next.js frontend team. You will shape technical direction, mentor engineers, and ensure scalable, high-performance web applications.

You will collaborate with product, design, and backend teams, uphold SOLID and clean-code practices, and drive improvements in testing, CI/CD, and deployment. Strong English communication is essential.

Formación

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.

Responsabilidades

• Collaborate with product managers, designers, and backend engineers to define and deliver high-quality user experiences.
• Ensure adherence to best coding practices (SOLID, clean code, maintainable architecture).
• Perform code reviews, provide constructive feedback, and mentor engineers to support their growth.
• Drive continuous improvements in development processes, testing, and deployment.
• Take ownership of performance, scalability, and technical quality of the frontend codebase.
• Help evaluate and introduce new technologies, tools, and patterns to the team.
• Work hands-on with the codebase, especially on complex or high-impact features.

Conocimientos

React

Next.js

Frontend architecture

SOLID principles

Mentorship

Team leadership

English communication

Performance optimization

Testing (Jest/RTL/Cypress)

CI/CD

Design systems

Storybook

Tailwind CSS

Cloudflare

GitHub Actions

Azure DevOps

Educación

Bachelor’s or Master’s degree in Computer Science/Software Engineering

Herramientas

Storybook

Tailwind CSS

Cloudflare

GitHub Actions

Azure DevOps

Descripción del empleo

Staff Frontend Engineers (React / Next.js)

We’re looking for an experienced Front End Architect / Staff engineer to guide and support our frontend team as we build modern, high-performance web applications. You’ll play a pivotal role in shaping the technical direction, mentoring engineers, and ensuring the delivery of scalable, maintainable, and performant software.

What you'll do:

• Collaborate closely with product managers, designers, and backend engineers to define and deliver high-quality user experiences.
• Ensure adherence to best coding practices (e.g., SOLID principles, clean code, maintainable architecture).
• Perform code reviews, provide constructive feedback, and mentor engineers to support their growth.
• Drive continuous improvements in development processes, testing, and deployment.
• Take ownership of performance, scalability, and technical quality of the frontend codebase.
• Help evaluate and introduce new technologies, tools, and patterns to the team.
• Work hands-on with the codebase, especially on complex or high-impact features.

What we're looking for:

• Bachelor’s or master’s degree in Computer Science, Software Engineering, or a related field.
• 7+ years of experience in software development, with at least 2 years in a technical leadership or mentorship role.
• Deep expertise in React, Next.js, and frontend architecture.
• Strong understanding of software design principles and architectural patterns.
• Excellent problem-solving and debugging skills.
• Proven ability to guide a team and coordinate work across multiple engineers.
• Strong communication and collaboration skills in English (both written and verbal).
• Enthusiastic about creating a culture of learning, feedback, and continuous improvement.
• Experience with frontend testing frameworks such as Jest, React Testing Library, or Cypress.
• Familiarity with Cloudflare (e.g., Workers, Pages, CDN services).
• Deep knowledge of performance optimization for modern web applications.
• Experience working with design systems or component libraries (e.g., Storybook, Tailwind CSS).
• Hands-on experience with CI/CD pipelines for frontend apps (e.g., GitHub Actions, Azure DevOps).
• Previous experience in fast-paced startup or scale-up environments.