Backend developer • bellevue wa
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The average salary range is between $ 105,000 and $ 152,019 year , with the average salary hovering around $ 117,000 year .
The average salary range is between $ 106,502 and $ 156,769 year , with the average salary hovering around $ 125,000 year .
What you can expect
You will architect high-performance C++ backend systems powering Zoom's AI-driven Contact Center platform. Working with distributed telephony infrastructure and real-time voice services, you will optimize session management and media handling at global scale. Your work will directly impact millions of customer interactions with reliability.
About the Team
We deliver cloud telephony infrastructure for Zoom's omnichannel Contact Center platform. Our team collaborates across engineering, product, and operations to build high-concurrency voice services. We exist to power seamless, AI-enhanced customer experiences at enterprise scale.
Responsibilities
Designing and optimizing distributed C++ backend modules that ensure reliability and massive scalability for real-time voice traffic
Building low-latency synchronization mechanisms using Redis and distributed technologies to manage real-time call states with cross-functional engineering teams
Troubleshooting complex system bottlenecks including memory leaks, thread contention, and network latency to maintain high-concurrency performance
Collaborating with logic and product teams to optimize the C++/Lua bridge and deliver business features with minimal overhead
Learning and applying telephony concepts (SIP, RTP, media handling) as needed to support voice service optimization
What we’re looking for
Communicate fluently in Mandarin to collaborate with distributed engineering teams across regions
Master Linux systems programming including IPC, socket programming, I/O multiplexing (epoll), and asynchronous I/O
Use Redis for distributed locking, caching, and state management in high-concurrency production environments
Apply familiarity with Lua scripting or embedded logic engines for telephony applications
Demonstrate experience with audio quality control strategies or AI/ML integration for voice services (ASR/TTS/NLP)
Ways of Working
Our structured hybrid approach is centered around our offices and remote work environments. The work style of each role, Hybrid, Remote, or In-Person is indicated in the job description/posting.
Benefits
As part of our award-winning workplace culture and commitment to delivering happiness, our benefits program offers a variety of perks, benefits, and options to help employees maintain their physical, mental, emotional, and financial health; support work-life balance; and contribute to their community in meaningful ways. Click Learn for more information
About Us
Zoomies help people stay connected so they can get more done together. We set out to build the best collaboration platform for the enterprise, and today help people communicate better with products like Zoom Contact Center, Zoom Phone, Zoom Events, Zoom Apps, Zoom Rooms, and Zoom Webinars.
We’re problem-solvers, working at a fast pace to design solutions with our customers and users in mind. Here, you’ll work across teams to deliver impactful projects that are changing the way people communicate and enjoy opportunities to advance your career in a diverse, inclusive environment.
Our Commitment
