Principal Engineer - Mac (Flutter/Dart) at Syndesus – Frisco, Texas

About the Company

Our client is a global consumer technology company building high-performance security products used by millions worldwide. They are committed to building an inclusive environment where engineers can have meaningful impact at global scale.

About the Role

They are seeking a highly skilled Principal Engineer with deep expertise in macOS and Flutter/Dart to help define and execute their desktop strategy. This is a hands-on technical leadership role where you will architect, build, and optimize Mac-native experiences using Flutter while shaping the long-term engineering vision for desktop applications. You’ll work at the intersection of security, performance, and user experience to deliver trusted, polished products at scale. This is a hybrid role based in Frisco, TX. Candidates must be within commuting distance. On-site presence is required as needed. Relocation assistance is not available.

Responsibilities

• Spend 60%+ of your time architecting and building high-performance Flutter applications for macOS
• Write production-level code and lead critical technical implementations across the Flutter desktop stack
• Define and own architectural standards focused on security, reliability, scalability, and long-term maintainability
• Ensure truly native macOS experiences across windowing, menus, keyboard shortcuts, accessibility, animations, and system integrations
• Design secure abstractions using Flutter platform channels and native macOS APIs (Swift / Objective-C)
• Partner with security engineers, designers, and product leaders to translate complex technical concepts into intuitive user experiences
• Drive best practices in state management, modularization, testing, and CI/CD
• Lead performance optimization efforts, including startup time, memory usage, and rendering efficiency
• Mentor senior engineers through design reviews, code reviews, and architectural guidance
• Set technical direction for the desktop engineering team
• Evaluate and adopt new Flutter and macOS capabilities while maintaining a strong security posture

Qualifications

• 10+ years of software engineering experience with deep hands-on expertise in Flutter and Dart
• Proven experience architecting and shipping production Flutter applications at scale, ideally on desktop
• Strong understanding of macOS application architecture and user experience conventions
• Extensive experience integrating Flutter with native macOS code via platform channels
• Solid system design expertise with a focus on secure, resilient, and testable architectures
• Experience with Flutter state management solutions such as Riverpod, Bloc, or Provider
• Demonstrated ability to mentor senior engineers and influence architectural direction
• Experience shipping applications used by millions of users
• Background in security, privacy, or system-level software preferred
• Knowledge of secure coding practices, threat modeling, and defense-in-depth principles
• Familiarity with Apple Human Interface Guidelines and macOS accessibility standards
• Comfort leveraging AI-assisted development tools to enhance engineering productivity

Pay range and compensation package

Our client offers competitive compensation and a comprehensive benefits package, including:

• Performance-based bonus program
• Retirement and pension plans
• Medical, dental, and vision coverage
• Generous paid time off
• Paid parental leave
• Flexible work arrangements
• Community involvement support

Equal Opportunity Statement
They are committed to building an inclusive environment where engineers can have meaningful impact at global scale.

CompensationThe base pay range for this role is $180,000 – $210,000 per year.