Senior React Native Developer

About the project
We are looking for skillful Web Frontend Developers to join one of our Polish teams working for US-based clients.
You will work (in the Polish time zone!) for one of our projects: Payments.ai, TrueWill, or Tentacle.
Our stack includes, first and foremost, React, Next.js, and sometimes TypeScript. We specialize in startups at their beginnings (MVP), which makes the job very diverse and challenging.
Tools you’ll use:
Slack, GSuite
GitHub
Jira, Confluence, Miro
Apple MacBook Pro and... Nivona (best coffee machine ever!)

Your responsibilities
Is independent and responsible for their own code
Makes sure their code is written with best practices in mind and is clean and understandable for other developers
Is in direct connection with a designer to discuss implementation details
Is involved in the technical part of the product design, suggesting improvements
Takes ownership and leadership over driven solutions
Cares about understanding the business domain of a product
Regularly communicates with the team to translate user stories into technical solutions and estimate them
Helps other developers in the company by sharing his knowledge and suggesting better solutions

Our requirements
Skilled in and enthusiastic about React.js and React Native
Experienced in mobile app development (4+ years)
Expert in state/data management libraries/tools (e.g., ContextAPI, Hookstate, others)
Have a good understanding of modern JavaScript and TypeScript, know about its pros and flaws, and follow best practices
Knowledge of testing frameworks (Jest/Testing Library/Detox/other)
Familiarity with debugging tools
Ability to work with Apple Developer Center and Google Play Store
Familiarity with iOS and Android capabilities and platforms' basic features, such as location services, push notifications, etc.
Experience in 3rd party services integration
Experience with Continuous Integration tools like Bitrise, GitHub Actions, or others
Experience in integrating Swift/Objective-C/Java/Kotlin libraries with React Native
Know how to work with REST APIs using modern tools (e.g., TanStack)
Want to expand your knowledge and experience and are willingly discovering and testing new libraries and tools
Like to work in small Agile scrum teams (2-6 developers). Speaks fluent English (B2+) to communicate with the team and understand clients

Optional

Web development experience, experience with Next.js, knowledge of Scrum and Agile methodologies, open-source contributions
Experience in web development
Experience in Expo
Experience with the Next.js framework
Experience with Node.js and AWS cloud provider
Understanding what an MVP is and what to focus on when building it
Experience in mentoring younger developers or leading a technical team