React Developer

Who we are

GLS Labs is a Costa Rica–based software boutique that specializes in crafting digital solutions for forward-thinking startups and enterprise-level clients. Our expertise spans web and mobile app development, DevOps, and UI/UX, all driven by a passion for modern technologies and agile methodologies. By combining cutting-edge tools with personalized collaboration, we deliver high-quality, user-centric products that make a meaningful impact on our clients’ businesses.

Your role

As a Junior React Developer at GLS Labs, you will contribute to the development of web applications primarily using React. You will work closely with cross-functional teams—including designers, backend developers, and product owners—to deliver robust, scalable, and user-friendly features. This is a great opportunity for someone with 1–2 years of experience looking to grow in a supportive environment where learning and collaboration are highly valued.

Your Key Responsibilities

• Develop and Maintain Front-End and Back-end Applications
• Implement new features and optimize existing ones using React
• Write Clean, Efficient Code
• Produce well-structured, reusable code following best practices in React.
• Collaborate with the Team
• Work with designers, backend developers, and project managers to translate business requirements into technical solutions.
• Participate in Code Reviews
• Contribute to maintaining code quality by reviewing peers’ work and receiving feedback on your own.
• Support Deployments & Testing
• Help ensure continuous integration and seamless deployments, assisting in QA and resolving bugs proactively.
• Stay Curious & Proactive
• Keep up with industry trends, propose new tools or practices, and seek opportunities to improve both code quality and the overall development process.

Required Technical Skills

• 1–2 years of experience with JavaScript and React
• You’ve built projects or applications with React, demonstrating familiarity with its core features and ecosystem.
• Proficiency with HTML & CSS
• Able to translate UI/UX designs into interactive, responsive user interfaces.
• Git & GitHub
• Comfortable with version control, handling branches, and managing pull requests.
• API Integration
• Experience consuming RESTful APIs and working with backend teams or microservices.

Bonus Technical Skills

• Redux or State Management Libraries
• Basic understanding of Redux, MobX, or similar tools for managing application state.
• Testing Frameworks
• Exposure to tools like Jest, React Testing Library, or Cypress is a plus.
• AWS Tools or Other Cloud Services
• Any experience with AWS (Amplify, Cognito, S3) or other platforms is welcomed but not required.
• Next.js
• Familiarity with server-side rendering or static site generation in the React ecosystem.

Required Soft Skills

• Team Collaboration
• You thrive in team settings, communicate effectively, and enjoy working towards common goals.
• Proactivity
• You show initiative, whether it’s identifying issues before they become problems or suggesting improvements.
• Strong Communication
• Ability to explain technical concepts clearly to both technical and non-technical audiences.
• Adaptability & Continuous Learning
• You’re excited to grow and adapt in a fast-paced, ever-evolving environment.

Required Experience

• 1–2 years of experience working with React and JavaScript in a professional or project-based setting.

Desirable

• Experience working with startups
• Familiarity with the dynamic environment and iterative processes common in early-stage companies.

Work Arrangement

• Fully Remote: Work from anywhere with a stable internet connection.
• Flexible Hours: You can set your schedule as long as you align for at least 6 hours a day with the main team (Costa Rica, GMT-6).