{"id":2280783,"url":"https://alion.io/job/ultrafan-senior-react-native-developer","title":"Senior React Native Developer","company":{"id":4407932,"name":"ULTRAFAN","domain":"ultrafan.world","url":"https://alion.io/company/ultrafan","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":{"grade":"A","score":100,"open_postings":3,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sofia, Bulgaria"],"countries":["BG"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Gradle","optional":false},{"name":"JavaScript","optional":false},{"name":"React Native","optional":false},{"name":"Rest API","optional":false},{"name":"Java","optional":true},{"name":"Kotlin","optional":true},{"name":"Node JS","optional":true},{"name":"Objective-C","optional":true},{"name":"React.js","optional":true},{"name":"Swift","optional":true}],"status":"live","first_seen_at":"2026-09-16T09:50:58Z","employer_posted_date":null,"last_verified_at":"2026-09-16T09:50:58Z","board_verified":false,"closed_at":null,"days_open":40,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":40},"description":"Join ULTRAFAN – Empowering the Sports Industry!\n\nAt ULTRAFAN, our mission is simple yet impactful: Digitize and revolutionize professional sports clubs. We deliver cutting-edge tools to give our partners a competitive edge, on and off the field.\n\nWe’re on the hunt for a Senior React Native Developer to join our team and help shape the future of sports digitization. If you’re passionate about mobile app development and want to work on innovative solutions, this is your chance!\n\nWhat You’ll Do\n\n• Design, develop, and maintain top-notch mobile apps using React Native.\n\n• Collaborate with Product, Design, and Backend teams to deliver seamless features.\n\n• Implement UI/UX architecture and maintain excellent app performance.\n\n• Collaborate with DevOps to implement and maintain CI/CD pipelines for App Store & Google Play releases.\n\n• Ensure app security, compatibility, and performance for iOS & Android.\n\n• Mentor teammates and stay ahead of mobile development trends.\n\nWhat We’re Looking For\n\n• 6+ years of development experience, with 2+ years in React Native.\n\n• Strong JavaScript/ES6+ skills and expertise in React Native libraries.\n\n• Experience with native tools like XCode, Android Studio, and Gradle.\n\n• Proven history of deploying apps to the App Store and Google Play.\n\n• Solid knowledge of REST APIs, responsive design, and modern development tooling.\n\nNice-to-Haves\n\n• Experience with Web & Backend development technologies (ReactJS, Node.js).\n\n• Native module integration (Objective-C/Swift, Java/Kotlin).\n\n• Team management experience.\n\nWhy Join Us?\n\n• Work on meaningful projects that impact the Professional Sports industry on a Global Level.\n\n• Collaborate with passionate, like-minded innovators.\n\n• Clear, efficient hiring process: 30-40 min call, then a follow-up interview.\n\nAdditional information: The position is hybrid, with focus on working from the office, which is located in Sofia.\n\nAre you ready to change the game? 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