Middle/Senior React Native Developer
Sigma Software1 day ago
Warsaw, PolandMid Level / Senior
Responsibilities
- Develop and maintain React Native applications for iOS and Android.
- Deliver smooth, engaging, and high-quality mobile user experiences.
- Improve existing applications and contribute to launching new brands and products in international markets.
- Take ownership of application quality, performance, and stability.
- Participate in technical discussions and suggest improvements across the development process.
- Collaborate with cross-functional teams in a product-oriented engineering environment.
Requirements
- At least 3 years of commercial experience developing with React Native.
- Strong knowledge of React and React Native.
- Experience with TypeScript and knowledge of GraphQL.
- Experience with GitHub or other version control systems.
- Understanding of mobile-first development principles and experience with iOS and Android applications.
- Upper-Intermediate English proficiency.
- Strong ownership, communication, collaboration, initiative, attention to detail, and willingness to learn and share knowledge.
Benefits
- Opportunity to work on mobile products used by millions of users worldwide.
- Distributed, collaborative engineering culture with experienced engineers.
- Opportunity to influence product development decisions and work with modern technologies.
- Professional growth opportunities.
- International iGaming project focused on recognized brands and new market expansion.
Tech Stack
Categories
Mobile
About Sigma Software
Sigma Software is a London-headquartered, privately held IT consultancy that designs and builds custom software for startups and enterprises. The company provides end-to-end services—engineering, web and mobile development, .NET/Java platforms, AR/VR, and UI/UX—delivered via outsourcing, managed teams, and consulting. Founded in 2002, it supports long-term product development and modernization projects across multiple industries for global clients.