Senior React Native Engineer

👥 Customer Description:

A regulated digital asset institution providing services for digital assets with full regulatory compliance, security, and operational reliability.

It operates across several global locations and supports institutional and private clients.

⚙️ Project Phase: Early-stage

👨‍💻Project Team: PM, Internal technical lead,  Internal Senior engineer

🤝 Soft Skills:

• Strong sense of ownership

• Proactive responsibility for assigned features

• Willingness to investigate and resolve issues quickly

• High proactivity in communication and problem-solving

• Ability to identify missing pieces and unfinished work

• Ability to propose improvements and alternative approaches

• Constructive challenge of ideas

• Quality-focused mindset

• Independent testing of own work

• Enhancing acceptance criteria when necessary

• Strong attention to detail

• Accountability for outcomes rather than tasks

• Creative and solution-driven thinking

💡 Hard Skills / Must Have:

• 5+ years of hands-on experience with React Native using TypeScript

• Strong knowledge of modern React patterns and state management (e.g., Zustand, Jotai Toolkit)

• Experience with React Query or similar server-state libraries

• Experience with mobile navigation (React Navigation or Expo Router)

• Understanding of secure storage and basic mobile security concepts

• Unit and integration testing for React Native applications

• Ability to work with native modules

• Basic configuration and troubleshooting in Xcode and Android Studio

• High standards for code quality and delivery

✨ Hard Skills / Nice to Have (Optional):

• Experience with banking or financial applications

• Experience with enterprise-grade CI/CD for mobile apps

• Familiarity with Expo modules and config plugins

• Experience designing scalable mobile application architectures

📌 Responsibilities and Tasks:

• Build a mobile application from scratch (greenfield project)

• Define and implement overall application architecture

• Select and set up the technology stack

• Set up and maintain CI/CD pipelines and core infrastructure

• Establish development workflows and best practices

• Contribute to the technical foundation of the product

• Collaborate closely with product management and internal leads

• Participate in technical and architectural decision-making

• Ensure production-ready, high-quality deliverables

🧪 Technology Stack: React Native, TypeScript, Zustand/Jotai, React Query, React Navigation/Expo Router, Expo, CI/CD, Mobile Security

👍English: Upper-intermediate

🌍 Location: Poland

📩 Ready to Join?
We look forward to receiving your application and welcoming you to our team!