Senior Mobile Developer @ OneRail Poland Sp. z o.o.

1 day ago

Kraków, Czech Republic OneRail Poland Sp. z o.o. Full time
  • 6+ years for senior position 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+).

Why Join OneRail Poland?

  • 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.

Office location: Kraków, Poland

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.

Salary levels: 20 000 – 28 000 PLN/month

,[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.] Requirements: React native, SQLite, Realm, RESTful API, GraphQL, Agile, CI/CD, Problem-Solving, Communication skills, Redux, MobX, Cloud, UX design, UI design Additionally: Sport subscription, Training budget, Private healthcare, Flat structure, Small teams, International projects, Free coffee, Playroom, Free snacks, Free beverages, Free lunch, Free parking, In-house trainings, In-house hack days, Modern office, Startup atmosphere, No dress code.

  • Senior React Developer @ OneRail Poland Sp. z o.o.

    1 day ago

    Kraków, Czech Republic OneRail Poland Sp. z o.o. Full time

    6+ years of experience in frontend software development. Proficiency in using React, JavaScript/TypeScript, CSS, and Webpack. Strong understanding of HTML5, CSS3, and CSS preprocessors. Familiarity with state management libraries like MobX. Strong understanding of front-end UI/UX principles and best practices. Experience with server-side rendering and...

  • Senior Manual QA Engineer @ OneRail Poland Sp. z o.o.

    1 day ago

    Kraków, Czech Republic OneRail Poland Sp. z o.o. Full time

    6+ years of experience in manual software testing. Strong understanding of software development life cycle (SDLC), testing methodologies, tools and processes. Experience in functional, regression, and exploratory testing for web and mobile applications. Familiarity with bug tracking tools such as JIRA, TestRail, or similar. Ability to write clear and...

  • Backend Developer

    1 day ago

    Kraków, Czech Republic OneRail Poland Sp. z o.o. Full time

    3+ years of experience in backend development, with a strong focus on Node.js & TypeScript. Experience in building RESTful APIs and microservices. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Understanding of cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD...

  • Human Resources Specialist @ OneRail Poland Sp. z o.o.

    1 day ago

    Kraków, Czech Republic OneRail Poland Sp. z o.o. Full time

    5+ years of experience in HR roles for Poland-based company, preferably IT company / start-up. Strong knowledge of labor law, payroll, social security, and tax regulations and expertise in handling HR documentation. Proficiency in MS Office and HR systems. Ability to work independently while collaborating with global HR teams. Fluent in Polish and English...

  • Senior Test Automation Engineer @ OneRail Poland Sp. z o.o.

    1 day ago

    Kraków, Czech Republic OneRail Poland Sp. z o.o. Full time

    6+ years of experience in Quality Assurance, with a strong focus on test automation and web technologies Hands-on experience in designing, implementing, and maintaining automated tests for APIs, UI, and backend services Solid knowledge of API testing tools such as Postman, RestAssured, or Newman Familiarity with unit and integration testing frameworks like...

  • Lead Node Developer @ OneRail Poland Sp. z o.o.

    1 day ago

    Kraków, Czech Republic OneRail Poland Sp. z o.o. Full time

    8+ years in software engineering (ideally Node.js + React tech stack), with at least 2 years in a technical leadership role. Demonstrated expertise in designing and developing scalable APIs, with knowledge of RESTful principles and best practices. Knowledge of microservices architecture and related design patterns / best practices. Experience with message...

  • Senior SW Engineer

    1 day ago

    Kraków, Czech Republic Nordic Semiconductor Poland Sp. z o.o. Full time

    Bachelor’s or Master’s degree in Computer Science, Artificial Intelligence, Electronics or a related field. Strong proficiency in Python and ML frameworks Hands-on experience with LLMs, LangChain, RAG architecture, and transformer models. Solid knowledge of cloud platforms (AWS, Azure, or GCP). Experience with MLOps concepts Familiarity with data...

  • Senior SW Engineer – AI Data Analytics @ Nordic Semiconductor Poland Sp. z o.o.

    1 day ago

    Kraków, Czech Republic Nordic Semiconductor Poland Sp. z o.o. Full time

    Bachelor’s or Master’s degree in Computer Science, Data Engineering, Electronics or a related field. Strong programming skills in Python Hands-on experience with big data technologies Expertise in building data pipelines and ETL workflows. Experience with cloud-based data services Solid knowledge of SQL and NoSQL databases. Familiarity with CI/CD...

  • Specjalista ds. rekrutacji @ HR WISE Sp. z o.o.

    1 day ago

    Zabierzów, Kraków, Czech Republic HR WISE Sp. z o.o. Full time

    Wymagania: Wykształcenie wyższe – preferowane: zarządzanie zasobami ludzkimi, prawo, administracja, psychologia, Minimum 2–3 lata doświadczenia w pracy na podobnym stanowisku, Doświadczenie w samodzielnym prowadzeniu procesów rekrutacyjnych, Znajomość zagadnień z zakresu employer brandingu oraz doświadczenie w działaniach wspierających...

  • Backend Software Developer @ Remitly Poland sp. z o.o.

    1 day ago

    Kraków, Czech Republic Remitly Poland sp. z o.o. Full time

    You have: A BS/MS in Computer Science or equivalent professional experience 3+ years of professional experience Proficient in a general purpose language such as Java or Golang Proficiency in an RDBMS like MySQL, PostgreSQL, or SQL Server, bonus points for experience managing big data Proven experience and understanding of software development practices,...