Senior Front-End Developer (React)

You will own complex features from concept to production, partnering with product managers, designers, and back-end engineers. Your mission: make sound architectural decisions, shape a high-tech, high-quality product, and craft maintainable experiences that users love. Deep JavaScript expertise, including practical server-side rendering skills is essential.

KEY RESPONSIBILITIES:

• Build, refactor, and extend applications with TypeScript, React, Next.js, React Query, Tailwind CSS, and Material UI.
• Design pages that render on the server, hydrate smoothly on the client, and scale under heavy traffic.
• Integrate REST and GraphQL (Apollo) APIs, optimize data fetching, and handle errors gracefully.
• Manage complex client state with Jotai and React Query.
• Create sophisticated forms using React Hook Form and Zod for robust validation.
• Profile and improve performance by reducing bundle size and boosting Core Web Vitals.
• Maintain high code quality through tests, reviews, and clear documentation.
• Mentor junior developers, guide technical roadmaps, and turn product ideas into actionable tasks.
• Stay current with front-end trends and introduce practical innovations to elevate speed, security, and usability.

WHAT YOU BRING:

• 4+ years of experience building production web and PWA projects.
• Expert command of React, Next.js, TypeScript, Tailwind, Material UI, REST, and GraphQL.
• Deep understanding of core JavaScript concepts and hands-on experience with server-side rendering.
• Proven ability to diagnose performance issues and design scalable solutions.
• Clear communication skills and a track record of effective collaboration in cross-functional teams.

NICE TO HAVE:

•  
• React Native experience for mobile apps.
• Desktop app development with Tauri or Electron.
• Familiarity with Docker and CI/CD pipelines.
• Familiarity with Trusted Web Activity concepts.
• Experience with automated testing tools such as Jest, React Testing Library, Playwright, or Cypress.

Benefits of Working with GSM:

• Semi-annual performance-based bonuses
• Supplementary health insurance starting from the second month
• Financial support for training courses
• Special occasion gifts
• In-house doctor for employee health support
• Flexible working hours
• A supportive environment for personal development and career growth

Working Hours:

Saturday to Wednesday
Work Location: Tehran, Jordan (possibility to work on-site, hybrid)

If you are ready to take your Frontend development skills to the next level and be part of a growing team that values quality and innovation, we want to meet you!