Staff Software Engineer – Mobile

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NinjaTrader

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Finance • Fintech • SaaS

NinjaTrader is a leading provider of futures trading platforms and brokerage services designed for both new and experienced traders to access the global futures markets. It offers a comprehensive suite of tools including charting, simulation, market visualization, and order flow tools, all accessible across multiple devices such as PCs, Macs, and mobile devices. NinjaTrader focuses on providing cost-effective and customizable trading solutions, with low margins and commissions, and supports trading in popular markets like E-mini and Micro E-minis, Crude Oil, and Bitcoin futures. The company also offers daily livestreams and comprehensive educational resources to help traders enhance their skills and strategies.

201 - 500 employees

Founded 2003

💸 Finance

💳 Fintech

☁️ SaaS

📋 Description

• Define and drive the technical roadmap for mobile architecture, frameworks, and tooling • Architect robust, maintainable Flutter solutions and guide best practices for state management, dependency injection, and reactive programming • Lead design reviews, architecture discussions, and performance optimization efforts across iOS and Android • Collaborate with product, design, and backend teams to deliver cohesive, high-quality user experiences • Partner with backend and API teams to ensure efficient data integration and scalable mobile communication patterns • Establish and evolve testing, CI/CD, and release processes to improve developer productivity and delivery reliability • Drive observability, monitoring, and crash analytics to ensure product stability and quality • Mentor engineers across teams and foster a culture of technical excellence, innovation, and collaboration • Continuously evaluate and introduce emerging technologies that enhance performance, security, and developer efficiency

🎯 Requirements

• 10+ years of professional software engineering experience • 3+ years in a technical leadership or staff-level role leading mobile development at scale • 4+ years of hands-on Flutter and Dart experience in production environments • Deep understanding of mobile architecture, state management, and design patterns (BLoC, MVVM, Clean Architecture) • Experience architecting and maintaining robust testing strategies for Flutter applications, spanning unit, widget, integration, and end-to-end levels • Experience building CI/CD automation for mobile delivery • Strong understanding of RESTful APIs, WebSockets, and offline data handling • Proven success optimizing performance, reliability, and user experience across diverse devices • Excellent communication skills and ability to influence technical direction across cross-functional teams

🏖️ Benefits

• Generous PTO • 7 Paid Holidays Annually + 5 Conditional Holidays Annually • 1 Service Day Annually • 401k with 3.5% Company Match • Paid Parental Bonding Leave • Health, Vision, Dental Coverage • Life and Disability Insurance Covered 100% by NinjaTrader