Senior React & React Native Developer

Senior React & React Native Developer 📍 Sofia, Bulgaria | Hybrid – 3 Days Office / 2 Days Remote per week 🌍 International Product Company Recruitify Global is partnering with an established international product company to hire a highly experienced Senior React & React Native Developer. You will build and improve complex Web and Mobile applications used internationally, while contributing to architecture, engineering standards and long-term technical decisions. What you will do Develop high-performance Web and Mobile applications using React and React Native. Take ownership of features throughout the full development lifecycle. Contribute to front-end and mobile architecture. Build reusable, scalable and maintainable components. Optimise application performance, stability and user experience. Translate UI/UX designs into responsive and accessible interfaces. Maintain a clean, well-tested codebase supported by CI/CD. Participate in code reviews and share knowledge across the team. Use AI-assisted development tools to improve engineering efficiency and quality.(must) Work within an experienced, autonomous product engineering team. Must-have experience 10+ years of overall professional software-development experience. 6+ years of hands-on experience with React, Redux 2+ years of professional React Native and mobile-development experience. Advanced knowledge of JavaScript and TypeScript. Strong experience with Redux and modern state-management practices. Solid understanding of front-end architecture, design patterns and clean-code principles. Experience with Jest and automated testing. Good knowledge of Webpack, Babel, Metro and modern development tooling. Strong understanding of responsive design, mobile-first development and accessibility. Experience building scalable, business-critical Web and Mobile applications. Professional working proficiency in English. Availability to work in a hybrid model from the Sofia office. Technology focus: React.js · React Native · TypeScript · JavaScript · Redux · Jest · Webpack · Babel · Metro · REST APIs · CI/CD · Mobile Development · Front-End Architecture What is offered Competitive remuneration and annual performance bonus. Hybrid working model from a modern Sofia office. Challenging international Web and Mobile products. Influence over architecture and engineering practices. Additional health insurance and flexible personal benefits. Learning and professional-development opportunities. Sports, wellness, transportation and parking benefits. Long-term career development within a stable international organisation.