JobCubby JobCubby
Sign up
Sigma Software

Middle/Senior React Native Developer

Sigma Software Warsaw, Masovian Voivodeship, Poland

Software Development · 1,001-5,000 employees

19 h ago
Remote react Mid (2-5 yrs) Full-time Poland
Create a free account to apply — email only, no card. You can also save this posting or score it against your profile with AI.

About the role

This role involves developing and maintaining React Native mobile apps (iOS and Android) for a major European iGaming/GameTech company's gambling platform used by millions of users. The developer will work within a distributed engineering team, contributing to new brand launches, market expansions, and overall product quality and performance.

What they look for

3+ years of commercial React Native development experience Strong knowledge of React, React Native, and TypeScript Familiarity with GraphQL and version control (GitHub) Mobile-first development mindset with iOS/Android experience Upper-Intermediate English proficiency Strong ownership, proactive communication, and product-oriented team mindset

Requirements

Requires at least 3 years of commercial experience with React Native, TypeScript, and GraphQL. Candidates should possess strong mobile-first development skills and an Upper-Intermediate level of English.

Full description

Company Description

Join a fast-growing international project where your work will impact mobile products used by millions of users worldwide. We are looking for a Middle/Senior React Native Developer with strong mobile expertise and a product-oriented mindset to strengthen our distributed team.

At Sigma Software, you will collaborate with experienced engineers to build scalable and high-performing applications for the iGaming domain. 

Why join us? We offer the opportunity to work with modern technologies, influence product development decisions, and grow professionally in a collaborative engineering culture.

CUSTOMER

Our Customer is one of Europe’s largest GameTech companies and the owner of one of the biggest mobile gambling platforms with millions of active users worldwide. The company combines enterprise-scale products with a startup-like approach to innovation and product delivery.

PROJECT

You will join a team developing modern mobile applications for globally recognized iGaming brands. The project focuses on delivering high-quality user experiences, supporting new product launches, and expanding existing brands into new international markets. The team follows a mobile-first approach and values ownership, collaboration, and engineering excellence.

Job Description

  • 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

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

WILL BE A PLUS

  • Experience writing unit tests
  • Understanding of native mobile development
  • Experience working in product-oriented teams
  • Knowledge of CI/CD practices for mobile applications

Additional Information

PERSONAL PROFILE

  • Strong ownership mindset
  • Team-oriented approach to development
  • Proactive communication skills
  • Attention to detail and quality
  • Ability to drive initiatives independently
  • Willingness to learn and share knowledge

Similar roles