Lead React Native Developer

OneRail Poland Sp. z o.o. develops mobile applications for real-time last mile orchestration, driver workflows, and enterprise delivery visibility in logistics environments.

• 8+ years of professional software engineering experience, including significant hands-on mobile development.
• 2+ years of experience in technical leadership or team lead capacity.
• Strong experience building and scaling React Native applications in production environments.
• Solid understanding of native mobile platforms (iOS and Android) and their integration with cross-platform frameworks.
• Proficiency in React Native, TypeScript.
• Experience designing and consuming RESTful APIs and real-time service integrations.
• Strong problem-solving skills with the ability to balance business priorities and technical excellence.
• Excellent communication and collaboration skills (Polish B2+ & English B2+).

• Own and evolve the architecture of OneRail’s mobile applications built in React Native with native iOS and Android integrations.
• Lead the design and implementation of scalable, high-performance mobile solutions supporting real-time logistics workflows.
• Partner closely with Product and Design teams to translate business requirements into intuitive, reliable mobile experiences for drivers and operational users.
• Ensure application performance, responsiveness, quality, and stability in production environments.
• Establish and enforce engineering standards for code quality, testing, observability, security, and CI/CD pipelines.
• Conduct and contribute to regular code reviews to maintain high engineering standards.
• Build and maintain reusable software components, shared libraries, and mobile infrastructure that integrate with backend.
• Analyze, benchmark, and optimize mobile applications for performance, scalability, and efficiency.
• Balance feature development with technical debt reduction and long-term platform sustainability.
• Improve developer experience through tooling enhancements, workflow automation, and release process optimization.
• Mentor and develop mobile engineers, supporting skill growth and career progression.
• Support hiring, onboarding, and retention of top mobile engineering talent.

Please be informed that the data controller is OneRail Poland Sp. z o.o. (hereinafter "controller"). You have the right to request access to your personal data, their rectification, erasure or restriction of processing, the right to object to processing, as well as the right to data portability and to lodge a complaint to the supervisory authority. Personal data will be processed for the purpose of the recruitment process. Provision of data to the extent resulting from the Act of 26 June 1974 Labour Code is mandatory. In the remaining scope, providing data is voluntary. Refusal to provide mandatory data may result in the impossibility to carry out the recruitment process. The Administrator processes mandatory data on the basis of a legal obligation incumbent upon him/her, while with regard to additional data, the basis for processing is consent. Personal data will be processed until the recruitment procedure is completed and for the period of the possibility of asserting potential claims, and in the case of consent to participate in future recruitment procedures - until the withdrawal of such consent. Consent to the processing of personal data can be withdrawn at any time. The recipient of the data is the Just Join IT service and other entities to whom we have entrusted the processing of data in connection with recruitment.