Mobile Software Developer (React Native)

Hi! We are ElmoSoft , an IT company building high-load trading products for an internationally acclaimed multi-asset broker. Currently, we're looking for a Mobile Software Developer (React Native) to join our team — we're considering both Mid-Level and Senior candidates. The stack and direction are the same; the level of responsibility, architectural ownership, and mentorship load differ. What you will do: Mid-Level • Develop, maintain, and optimize mobile apps using React Native. • Independently build reusable UI components and implement complex features. • Integrate and enhance native functionality in Swift/SwiftUI (iOS) and Kotlin/Jetpack Compose (Android) when needed. • Collaborate with Product, Design, Backend, and QA teams to define requirements and deliver solutions. • Implement and maintain automated tests (unit, integration, e2e) using Detox or Appium. • Monitor production systems, troubleshoot issues, and deliver performance improvements. • Participate actively in code reviews, share knowledge, and enforce coding standards. • Document all work, including API usage, components, and deployment notes. • Contribute to CI/CD pipeline improvements and release process optimizations. • Begin mentoring junior developers — guide debugging, testing, and mobile best practices. Senior-Level • Lead the development of complex mobile app features in React Native and native modules. • Define and enforce coding standards, architectural guidelines, and testing strategies. • Analyze and solve performance, scalability, and production-level issues. • Design modular, reusable components and scalable architectures. • Oversee automated testing strategies — grow test coverage with Detox, Jest, Appium. • Review code for architectural integrity, performance, and maintainability. • Document architectural decisions, system dependencies, and release notes. • Identify system risks and propose refactoring or architecture improvement projects. • Mentor junior and mid-level mobile developers - transfer knowledge and build team capability. • Evaluate and recommend mobile tools, frameworks, or platform-specific enhancements. • Stay updated with industry trends, mobile best practices, and emerging technologies. Tech stack: Core: React Native Native: Swift/SwiftUI (iOS), Kotlin/Jetpack Compose (Android) Testing: Detox, Appium, Jest APIs & Data: REST, GraphQL, caching, offline-first strategies, local storage CI/CD: Deployment automation, release pipelines, App Store operations Performance: Profiling, memory optimization, crash prevention, startup time Key requirements: Mid-Level • 3–5 years of experience in mobile development, with strong React Native experience. • Solid understanding of native app development (iOS/Android) integration points. • Experience integrating APIs, third-party services, and local storage solutions. • Knowledge of mobile app performance optimization techniques. • Hands-on experience in mobile CI/CD, deployment automation, and test coverage tools. • Good understanding of mobile accessibility, UX/UI standards, and responsive design principles. Senior-Level (in addition to the above) • 5+ years of professional mobile development experience, with deep React Native expertise. • Strong background in native mobile development — Swift/SwiftUI and Kotlin/Jetpack Compose. • Hands-on experience designing modular, reusable components and scalable architectures. • Solid understanding of REST APIs, GraphQL, caching, and offline-first mobile strategies. • Advanced skills in performance tuning, app profiling, memory optimization, and crash prevention. • Proficient in mobile testing frameworks and automated testing pipelines. • Experience managing CI/CD for mobile apps, deployment pipelines, and app store operations. What we offer: • An interesting fintech project with real responsibility and room to make technical decisions. • Collaboration with strong professionals, offering opportunities to learn and grow. • Competitive salary linked to USD. • Hybrid after probation: first 3 months fully office-based, then 3 days office/2 remote. • Medical insurance (DMS). • Modern office in the center of Minsk at Fabriziusa St. 8B/1. Join the team that is building the future of trading technology 🚀