Principal Software Engineer - Desktop and Mobile Applications - Roon

About the Role

At Roon, we are at the forefront of revolutionizing the way people experience music. Since our inception, we have dedicated ourselves to developing software that transforms music streaming into an immersive journey, tailored specifically to the listener's preferences and unique tastes.

Under the umbrella of Harman International, Roon continues to operate with the spirit of a nimble startup, backed by the resources and reach of a global powerhouse. Our team comprises passionate individuals who believe in the power of music to connect and inspire. We are developers, designers, engineers, and audiophiles united by a common goal—to make listening to music more engaging, personal, and connected.

Join us to become a vital resource in our development team, helping us continue our journey towards greatness. Unleash your creativity and technical prowess to build and uphold exceptional standards that become benchmarks in our industry. Embrace the challenge of creating cutting-edge technologies that position us as leaders and be instrumental in charting the course to a future defined by innovation and excellence. We invite you to apply and be a part of our journey to set new standards in HiFi audio software. Join us in creating an immersive and innovative audio experience for users worldwide.

What You Will Do

• Architect, develop and maintain high-performance desktop and mobile applications for HiFi audio enthusiasts across Windows, macOS, iOS, Android, and Linux, driving technical direction and ensuring seamless cross-platform experiences.

• Lead cross-platform development initiatives using primarily C# and .NET-based technologies, applying deep expertise to improve scalability, maintainability, and long-term product evolution.

• Design and optimize complex systems that manage audio content, music metadata, and low-latency audio streaming across local networks, leveraging your mastery of network protocols and concurrency models to deliver robust solutions.

• Serve as a technical leader and mentor, guiding team members in best practices for architecture, performance profiling, and troubleshooting, while raising the overall technical bar.

• Proactively identify and address risks in project delivery, communicate complex technical concepts to stakeholders, and influence decisions to align engineering efforts with business goals.

• Use modern AI-assisted development workflows as part of your day-to-day engineering practice, including tools such as Claude Code, Codex, and similar agentic coding assistants to accelerate implementation, explore solutions, generate tests, review code, and improve developer productivity.

• Drive innovation in audio streaming and system architecture, recommending and implementing advanced solutions that enhance user experience, performance, and reliability.

What You Need to Be Successful

• 10+ years of professional software engineering experience, including experience owning end-to-end delivery of complex projects.

• Extensive experience with C# and .NET based technologies.

• Strong systems software understanding of data storage, processing, memory management, filesystems, networking, and concurrency.

• Sound understanding of network protocols and cross-platform development (Windows, macOS, iOS, Android, and Linux).

• Experience with automated pipelines for continuous build and integration systems (CI/CD).

• Experience using AI-assisted development tools such as Claude Code, Codex, GitHub Copilot, Cursor, or similar tools in real software engineering workflows.

• Familiarization with containerization and virtualization technologies (Docker, VMware, HyperV, etc) and packaging software for these environments.

• Curiosity and practical interest in how AI can improve engineering productivity, code quality, testing, and developer workflows

Bonus Points if You Have

• Bachelor’s degree in computer science or other related field.

• Specializing in any of the following areas: UI/UX engineering, Mobile application development, Networking, Graphics (real-time rendering or image processing), Audio (playback, management, processing), Software performance profiling, debugging, and optimization.

• Experience with media playback engines on desktop and / or mobile platforms.

• A passion for delivering top-notch audio experiences to users and an interest in the audio technology domain.

• Familiarity with GPU programming and Node.js.

• Experience building or improving internal AI-assisted engineering workflows, such as automated code review, test generation, documentation generation, debugging agents, CI-integrated AI tools, or developer productivity tooling.

What Makes You Eligible

• Be willing to travel up to 5%, domestically and internationally.

• Able to work virtually in any US time zone.

• Successfully complete a background investigation and drug screen as a condition of employment.

What We Offer

• Flexible work environment, allowing for full-time remote work globally for positions that can be performed outside a HARMAN or customer location

• Access to employee discounts on world-class Harman and Samsung products (JBL, HARMAN Kardon, AKG, etc.)

• Extensive training opportunities through our own HARMAN University

• Competitive wellness benefits

• Tuition reimbursement

• “Be Brilliant” employee recognition and rewards program

• An inclusive and diverse work environment that fosters and encourages professional and personal development

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HARMAN is proud to be an Equal Opportunity / Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.