Frontend Desktop Engineer

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Frontend Desktop Engineer based in Spain. We are seeking a skilled Frontend Desktop Engineer to develop and maintain a cross-platform peer-to-peer communication application. In this role, you will help build intuitive, reliable, and high-performance desktop experiences using React and modern JavaScript technologies. You will contribute to a decentralized platform that enables secure communication and data sharing without relying on traditional server infrastructure. Working across user interface development, state management, testing, and performance optimization, you will help shape the future of private digital collaboration. You will join a globally distributed team that values technical excellence, autonomy, and open-source innovation. This is an opportunity to solve complex engineering challenges while contributing to technology that empowers users to retain control over their data. Accountabilities - Develop, maintain, and improve a cross-platform desktop application built with React and running on a peer-to-peer application runtime. - Implement responsive, intuitive user interfaces that deliver a seamless user experience across supported desktop platforms. - Build and maintain robust frontend architecture using modern JavaScript and TypeScript practices. - Manage application state using tools such as Redux, Redux Toolkit, Zustand, or equivalent solutions. - Write modular, maintainable, and well-tested code that supports long-term reliability and scalability. - Test, debug, and troubleshoot complex frontend issues to ensure application stability and quality. - Optimize rendering performance, memory usage, and overall application responsiveness. - Collaborate with a remote, international engineering team to deliver improvements to decentralized communication and collaboration tools. - Contribute to the development of peer-to-peer features supporting messaging, file sharing, and real-time communication.

Requirements: - Proven professional experience with React or Preact and modern JavaScript or TypeScript in production-scale applications. - Strong understanding of frontend state management, including Redux, Redux Toolkit, Zustand, or similar libraries. - Demonstrated ability to write clean, modular, maintainable, and well-tested code. - Solid experience testing, debugging, and troubleshooting complex frontend applications. - Strong problem-solving skills and an interest in building performant, reliable desktop software. - A genuine interest in peer-to-peer technologies, distributed systems, or decentralized applications. - Excellent communication skills and the ability to collaborate effectively within a globally distributed, remote team. - Experience developing desktop applications with Electron, Tauri, or comparable runtimes is an advantage. - Familiarity with WebRTC, media streams, audio/video APIs, or real-time communication technologies is preferred. - Experience optimizing UI rendering, memory management, and application performance is desirable. - Knowledge of cross-platform development for macOS, Windows, and Linux is a plus. - Contributions to open-source projects, particularly in peer-to-peer or decentralized technology, are an additional advantage. Benefits: - Opportunity to contribute to innovative peer-to-peer technology and decentralized communication tools. - Work in a globally distributed environment alongside international technology professionals. - Exposure to modern frontend frameworks, cross-platform desktop development, and emerging decentralized technologies. - Opportunity to help build software focused on privacy, secure communication, and user control over personal data. - Potential to contribute to open-source development and the evolution of peer-to-peer applications.