Staff Software Engineer (Mobile)

NinjaTraderChicago, IL
19d$160,000 - $200,000

About The Position

We are seeking a highly skilled and experienced Staff Engineer (Mobile) specializing in Flutter to join our Mobile Engineering Team. As a Staff Engineer, you will lead mobile architecture, mentor engineers, and deliver scalable, high-performance applications that power a seamless cross-platform experience. You will influence technical direction across teams, set a high standard for engineering excellence, and drive end-to-end quality and reliability in our mobile products.

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

Nice To Haves

  • Experience creating custom Render Objects in Flutter to support advanced layouts or charting
  • Strong knowledge of native iOS (Swift) and Android (Kotlin/Java) integration
  • Experience with fintech or trading platforms
  • Contributions to open-source Flutter frameworks or SDKs
  • Experience leading migration from native mobile stacks to Flutter

Responsibilities

  • 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

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

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What This Job Offers

Job Type

Full-time

Career Level

Mid Level

Education Level

No Education Listed

Number of Employees

251-500 employees

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