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HubX Logo HubX · IT - Software Development

Sr. React Native Developer

Turkey, Istanbul · Job Posted January 02, 2026
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Job Description

At HubX we build mobile apps, used and loved by millions all around the world. We have a track record of building and growing mobile apps on various verticals that reached over 300 million users across 6 continents and 170+ countries. We are looking for a talented “Sr. React Native Developer” to join our energetic and highly motivated team.

Job Responsibility

  • Create beautiful, pixel-perfect UIs across both mobile platforms that look and feel native
  • Leverage native APIs for deep integrations with both platforms
  • Work alongside our product owner and UI/UX designers to realize your shared vision
  • Write automated tests that give us the confidence to iterate quickly and ensure the product is of the highest quality
  • Diagnose and fix bugs and performance bottlenecks
  • Engage with the React Native community to report, request, and help implement critical software fixes
  • Maintain a stable and current-when-possible React Native create an environment for our CI pipeline
  • Stay current on the latest platform capabilities so that we know whats possible
  • Practice Scrum with a great group of developers and product managers

Requirements

  • 5+ years experience in mobile application development
  • Strong proficiency in TypeScript and modern JavaScript (ES6+), including advanced concepts like closures, context, and asynchronous patterns
  • Deep understanding of mobile architecture, component patterns, and rendering lifecycles in React Native
  • Experience integrating and debugging In-App Purchase systems on iOS and Android (StoreKit, Google Play Billing)
  • Demonstrated experience with CI/CD systems, ideally using GitHub Actions, EAS, CircleCI
  • Solid understanding of mobile performance optimization and profiling tools (Flipper, Hermes, etc.)
  • Experience consuming RESTful APIs and working with tools like Axios, React Query, or RTK Query
  • Strong knowledge of automated testing frameworks (e.g., Jest, Detox, Testing Library)
  • Practical experience with Agile/Scrum, sprint planning, retrospectives, and cross-functional collaboration
  • Excellent problem-solving skills, ownership mindset, and a drive for continuous improvement
  • Ability to write clean, maintainable code with attention to code quality, scalability, and documentation
  • Good command of written and spoken English

What we offer

  • A competitive compensation package
  • A brand new Macbook and welcome kit
  • Private Medical Insurance & HPV Vaccine & Critical Women’s Health Coverage
  • Gym Reimbursement
  • A unique and top-notch office
  • Unlimited coffee from XPresso
  • Limitless Snacks & breakfast
  • Continuous education
  • Meditopia membership
  • Cambly access
  • Team events
  • X Community discounts
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