Senior Mobile Developer
ONERAIL POLAND SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄKraków, Województwo małopolskie, Polska30+ days ago
Job description8+ years of experience in mobile apps development, with a particular focus on efficiency optimization and code reuse. Strong commercial experience with React Native and the React ecosystem Experience with state management (Redux, MobX, Zustand, or similar). Familiarity with React Navigation and deep linking. Experience integrating APIs (REST, GraphQL) and handling offline data (e.g., AsyncStorage, SQLite, Realm). Understanding of app lifecycle management, background tasks, and push notifications. Experience with platform-specific integrations (e.g., camera, geolocation, local storage). Understanding of mobile security best practices. Familiarity with mobile app design principles and UI / UX best practices. Familiarity with publishing to App Store and Google Play. Understanding of cloud services (AWS, GCP, or Azure). Experience with data persistence Experience with Agile methodologies and CI / CD practices. Strong problem-solving skills and ability to work in a fast-paced environment. Excellent communication and collaboration skills. Advanced proficiency in English, both written and spoken (B2+). you focus on a single project at a time you can change the project you have influence on the choice of tools and technologies you have influence on the technological solutions applied you have influence on the product you develop the code "from scratch" you focus on code maintenance frontend developer technical leader architect automated test programmer manual tester product owner project manager Clean Code code review DevOps active monitoring documentation issue tracking tools functional tests integration tests pen tests performance tests regression tests testing environments unit tests manual tests assistance in preparation to public speeches conferences in Poland external training intracompany training space for experimenting substantive support from technological leaders support of IT events technical knowledge exchange within the company Innovation at its Core : Work on industry-leading technology that is shaping the future of logistics. Career Growth : Opportunities for professional development and career advancement. Collaborative Culture : Join a team of talented engineers and industry experts. Exciting Challenges : Solve complex problems and contribute to impactful projects. Flexibility : We offer a flexible hybrid work style and flexible employment types to suit your needs, ensuring a work-life balance that works for you. Competitive Compensation : Attractive salary and benefits package. private medical care sharing the costs of professional training & courses life insurance remote work opportunities flexible working time video games at work coffee / tea drinks parking space for employees pre-paid cards shopping coupons sharing the costs of tourist services sharing the costs of tickets to the movies, theater employee referral program charity initiatives family picnics Work Style : hybrid (2-3 days from the office / week preferred), We are open to a more flexible arrangement for candidates located outside the Krakow area. OneRail is a technology company innovating solutions for multi-modal delivery. We have built and continue to develop a delivery orchestration platform that connects shippers to an extensive courier ecosystem to automate, optimize, and control the entire delivery supply chain, from the demand signal to the proof of delivery. Our OmniPoint SaaS platform uses proprietary algorithms and artificial intelligence to power efficient same-day delivery programs for major companies like Lowe’s, Pepsi, American Tire Distributors, and Advance Auto Parts.
As Senior Mobile Developer (React Native) you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations. In this role, you will work closely with product owners, designers, and other developers to build and maintain high-performance applications that run on iOS and Android platforms. If you have a passion for single code base development, a strong background in React Native, and enjoy working in a team-oriented environment, we encourage you to apply.
Your responsibilities
- Design and develop advanced mobile applications using React Native.
- Integrate APIs.
- Implement modern UI / UX designs with pixel-perfect precision across iOS and Android.
- Write clean, modular, well-tested code following architecture patterns and best practices typical for mobile apps development.
- Identify and resolve performance bottlenecks, memory leaks, and UI glitches.
- Implement native modules and platform-specific integrations (camera, geolocation, push notifications, local storage).
- Participate in code reviews, testing, and debugging to ensure high code quality and reliability.
- Assist in automating deployment processes and improving CI / CD pipelines.
- Stay updated with industry trends and emerging technologies to continuously improve our platform.
Our requirements
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Mobile Developer • Kraków, Województwo małopolskie, Polska
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