Principal Engineer - Mac (Flutter/Dart)

Role OverviewMcAfee is seeking a highly skilled Principal Engineer with deep macOS and Flutter/Dart expertise to help build trusted, high performance security products that protect millions of users and families worldwide. In this hands on technical leadership role, you will architect, implement, and optimize Mac native experiences using Flutter, owning key aspects of our desktop strategy while shaping the long term engineering vision.As a Principal Engineer, you will lead critical architectural decisions, write production level code, and ensure our Flutter desktop applications meet the highest standards of security, reliability, performance, and user experience. You’ll collaborate closely with security engineers, designers, and product partners to transform complex technical and security concepts into intuitive, high quality customer experiences.If you’re energized by impactful, customer centric engineering and want to help shape the future of McAfee’s desktop products, we’d love to meet you.This is a Hybrid position located in Frisco, TX. You will be required to be on-site on an as-needed basis; when you are not working on-site, you will work from your home office. You must be within commutable distance of Frisco, TX. We are not offering relocation assistance at this timeAbout The RoleHands-on architecture and implementation (60%+ of your time) of high-performance Flutter applications for macOS used by millions of customersWrite production code and lead critical technical implementations across the Flutter desktop stackDefine and own Flutter desktop architectural standards with a focus on security, reliability, and long-term maintainabilityEnsure Mac-native experiences across windowing, menus, keyboard shortcuts, accessibility, animations, and system integrationsPartner with security engineers, designers, and product managers to translate complex security concepts into intuitive user experiencesDesign and implement robust abstractions for secure platform integrations using Flutter platform channels and native macOS APIsDrive best practices around state management, modularization, testing, and CI/CDLead performance tuning efforts (startup time, memory usage, rendering efficiency)Mentor senior engineers through design reviews, code reviews, and technical guidanceSet technical direction and architectural vision for the teamEvaluate and adopt new Flutter and macOS capabilities while maintaining a strong security postureAbout YouYou have 10+ years of software engineering experience with deep expertise in Flutter and Dart on any platformProven track record of hands-on implementation and architecting production Flutter applications at scale, ideally on desktopStrong understanding of macOS application architecture and UX conventionsExtensive experience integrating Flutter with native macOS code (Swift / Objective-C) via platform channelsSolid background in system design, with an emphasis on secure, testable, and resilient architecturesExperience with Flutter state management solutions (e.g., Riverpod, Bloc, Provider)Demonstrated ability to mentor senior engineers and set technical direction for teamsStrong collaboration and communication skills, with the ability to influence across teamsPassion for delivering polished, trustworthy user experiences through hands-on implementationExperience building or integrating security, privacy, or system-level softwareFamiliarity with Apple Human Interface Guidelines and macOS accessibility standardsExperience shipping apps at large scale with millions of usersKnowledge of secure coding practices, threat modeling, or defense-in-depthFamiliarity with AI-based coding tools and practices (e.g., Claude Code, AI-assisted development)Company OverviewMcAfee is a leader in personal security for consumers. Focused on protecting people, not just devices, McAfee consumer solutions adapt to users’ needs in an always online world, empowering them to live securely through integrated, intuitive solutions that protects their families and communities with the right security at the right moment.Company Benefits And PerksWe work hard to embrace diversity and inclusion and encourage everyone at McAfee to bring their authentic selves to work every day. We’re proud to be Great Place to Work® Certified in 10 countries, a reflection of the supportive, empowering environment we’ve built where people feel seen, valued, and energized to reach their full potential and thrive.We offer a variety of social programs, flexible work hours and family-friendly benefits to all of our employees.Bonus ProgramPension and Retirement PlansMedical, Dental and Vision CoveragePaid Time OffPaid Parental LeaveSupport for Community InvolvementWe're serious about our commitment to diversity which is why McAfee prohibits discrimination based on race, color, religion, gender, national origin, age, disability, veteran status, marital status, pregnancy, gender expression or identity, sexual orientation or any other legally protected status.