Mid/Senior React Native Mobile Engineer — iGaming

Sigma Software Group; Warszawa; On-site; PLN 180,000 - 260,000; Full time

Job summary

Sigma Software Group in Warsaw, Poland, is seeking a Middle/Senior React Native Developer to build scalable mobile applications for global brands. You will work with a distributed team on iOS and Android, focused on delivering high-quality user experiences and fast, reliable performance.

We value product-minded engineers who own their work, collaborate across disciplines, and contribute to product decisions while growing technically in a fast-growing international project.

Qualifications

• 3+ years of commercial experience with React Native development.
• Strong knowledge of React and React Native.
• Experience with TypeScript.
• Knowledge of GraphQL.
• Experience with GitHub or other version control systems.
• Understanding of mobile-first development principles.
• Experience working with iOS and Android applications.
• Upper-Intermediate level of English.

Responsibilities

• Develop and maintain React Native applications for iOS and Android platforms.
• Ensure smooth and engaging mobile user experiences.
• Collaborate with cross-functional teams to deliver high-quality solutions.
• Improve and maintain existing applications with a product-oriented mindset.
• Contribute to launching new brands and expanding products into new markets.
• Participate in technical discussions and suggest improvements across the development process.
• Take ownership of application quality, performance, and stability.

Skills

React Native

React

TypeScript

GraphQL

GitHub

Mobile-first

iOS/Android

English

Tools

GitHub

Job description

Sigma Software Group in Warsaw, Poland, is seeking a Middle/Senior React Native Developer to build scalable mobile applications for global brands. You will work with a distributed team on iOS and Android, focused on delivering high-quality user experiences and fast, reliable performance.

We value product-minded engineers who own their work, collaborate across disciplines, and contribute to product decisions while growing technically in a fast-growing international project.