Senior Frontend Developer

About the Role

We are looking for a talented and experienced Senior Mobile & Frontend Developer to join our R&D team at Colmex Group.

In this role, you will take a key part in developing and enhancing our customer-facing web and mobile applications, delivering seamless, high-performance digital experiences.

You will work with modern technologies, collaborate closely with cross-functional teams, and contribute to building scalable, reliable, and user-friendly products in a dynamic fintech environment.

Requirements

• 5+ years of hands-on experience in Frontend and Mobile development.
• Strong proficiency in React and TypeScript.
• Proven experience developing mobile applications using React Native, Flutter, or native iOS/Android technologies.
• Experience building and maintaining customer-facing web and mobile products.
• Strong understanding of modern frontend architecture, component-based design, and state management.
• Deep knowledge of HTML5, CSS3, JavaScript/TypeScript, responsive design, and mobile-first development.
• Experience integrating applications with REST APIs and external services.
• Experience publishing and maintaining applications on the Apple App Store and Google Play Store.
• Experience with performance optimization, application monitoring, and troubleshooting across web and mobile platforms.
• Familiarity with Azure cloud services and CI/CD pipelines.
• Experience with Git, automated testing, and modern development workflows.
• Experience using AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code, or similar.
• Strong communication, problem-solving, and collaboration skills.

Nice to Have

• Experience working with React Native and React within the same technology ecosystem.
• Background in fintech, trading platforms, or financial products.
• Experience with push notifications, analytics, crash reporting, and mobile monitoring tools.
• Familiarity with Azure App Services, Azure DevOps, and Application Insights.
• Experience collaborating closely with UX/UI teams and working with design systems.