NinjaTraderRemote
Sr. Software Engineer II, Mobile
United States of America
Full Time
2 weeks ago
$140,000 - $190,000 USD
H1B Sponsor Likely
Key skills
JavaSwiftKotlinDartAnalyticsFlutterWebSocketsRESTfuliOSAndroidPerformance OptimizationAgileCI/CDCommunicationCollaboration
About this role
NinjaTrader is an industry-leading trading platform and futures broker dedicated to empowering traders. They are seeking a Sr. Software Engineer II specializing in Flutter to lead mobile architecture, mentor engineers, and deliver scalable applications for a seamless cross-platform experience.
Responsibilities:
- Own the life cycle of features through testing, debugging, documenting, releasing, and monitoring
- Take part in daily standups and regular team-wide meetings to discuss current and upcoming tasks
- Participate in the technical roadmap for mobile architecture, frameworks, and tooling
- Participate in design reviews, architecture discussions, and performance optimization efforts across iOS and Android
- Implement robust, maintainable Flutter solutions that follow best practices for state management, dependency injection, and reactive programming
- Collaborate with Product and Design teams to iteratively improve the user experience on mobile platforms
- Investigate issues, mitigate them, and recommend preventative measures
- Improve observability, monitoring, and crash analytics to ensure product stability and quality
- Help foster a culture of technical excellence, innovation, and collaboration
Requirements:
- 6+ years of professional software engineering experience
- 2+ years of hands-on Flutter and Dart experience in production environments
- Understanding of mobile architecture, state management, and design patterns (BLoC, MVVM, Clean Architecture)
- Experience maintaining testing strategies for Flutter applications, spanning unit, widget, integration, and end-to-end levels
- Familiarity with building CI/CD automation for mobile delivery
- Understanding of RESTful APIs, WebSockets, and offline data handling
- Familiarity optimizing performance, reliability, and user experience across diverse devices
- Ability to perform in a team environment adopting agile principles
- Strong written and verbal communication skills
- Strong grasp of OOP design principles
- Knowledge of native iOS (Swift) and Android (Kotlin/Java) integration
- Experience with fintech or trading platforms
- Contributions to open-source frameworks or SDKs