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Principal Software Engineer – Mobile Full Stack (Flutter) - Roon ARC

Harman

$120,750 - $177,100
Dec 19, 2025
Remote, US
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Roon is looking to solve the problem of revolutionizing the way people experience music by developing software that transforms music streaming into an immersive journey, tailored specifically to the listener's preferences and unique tastes.

Requirements

    • Experience: 10+ years in full-stack application development (client + backend/services), with a proven track record of delivering robust software products.
    • Technical Mastery: Strong understanding of data structures, algorithmic complexity, concurrency, and ability to write clean, tested code.
    • Mobile Expertise: In-depth knowledge of mobile performance tuning, battery optimization, cellular networking, and audio-related technologies.
    • Programming Languages: Proficiency in a handful of languages across multiple paradigms, with strong Flutter/Dart skills and readiness to work with C-Sharp/.NET and some C++.
    • CI/CD Expertise: Experience with automated build and integration pipelines for seamless delivery.
    • Passion for Quality: Commitment to clean and expressive code with a strong focus on testing and quality assurance.
    • AI literacy: Comfortable using AI tools to improve productivity, while fully reviewing, validating, and understanding any AI-assisted code or documentation

Responsibilities

    • Develop Cross-Platform Apps: Design, build, and maintain high-performance, scalable applications for both iOS and Android using Flutter/Dart.
    • Architect and Design Solutions: Translate business requirements into actionable development tasks, make architecture decisions, and implement solutions that align with existing standards while pushing for innovation.
    • Enhance User Experience: Build intuitive, visually stunning interfaces while ensuring seamless performance, energy efficiency, and reliable connectivity on mobile platforms.
    • Expand Features & Maintain Functionality: Add new features to our mobile music app, focusing on complex audio formats, media integration, and CarPlay/Android Auto support.
    • Collaborate Across Teams: Work closely with designers, product managers, and stakeholders to deliver exceptional user experiences and improve existing features.
    • Debugging & Troubleshooting: Own the debugging process to identify, address, and resolve technical issues.
    • Be a Performance Advocate: Champion best practices for performance and optimization, ensuring smooth user experiences across various devices and network conditions.

Other

    • Collaboration Skills: Excellent communication and teamwork abilities to work effectively with cross-functional teams.
    • Travel Requirements: Be willing to travel up to 5%, domestically and internationally.
    • Work Schedule: Available for meetings and team interaction during typical continental US business hours.
    • Background Screen and Drug Test: Willingness to submit to a background screen and a drug test
    • Education: Bachelor's degree in Computer Science or other related field (nice to have)