Full Stack A/V Engineer

Mattermost is seeking an exceptional Software Engineer with deep expertise in audio/video streaming technologies to lead the development of next-generation conferencing capabilities on our platform. You'll be at the forefront of building and scaling real-time communication solutions that serve mission-critical organizations in defense, intelligence, and critical infrastructure sectors where reliable, secure, and high-quality audio/video collaboration is essential. 

As our audio/video expert, you'll architect and implement cutting-edge streaming solutions using WebRTC, Media over QUIC, and other emerging web media technologies. This role combines deep technical expertise with product vision—you'll not only build robust A/V systems but also shape the strategic direction of Mattermost's conferencing platform. Whether extending our existing audio calls product or integrating with third-party platforms like LiveKit, your work will directly impact how the world's most critical organizations communicate and collaborate. 

This is a unique opportunity to join a fast-paced, globally distributed team where your expertise in real-time media streaming will drive innovation across our entire technology stack. You'll work closely with customers' technical teams to solve complex deployment challenges while mentoring fellow engineers and contributing to one of the largest open-source collaboration platforms. 

Responsibilities Include:

• Design and implement scalable audio/video conferencing solutions using WebRTC, Media over QUIC, and other modern streaming protocols 
• Architect full-stack A/V systems spanning frontend media handling, backend streaming infrastructure, and network optimization 
• Lead the strategic evolution of Mattermost's audio/video capabilities, evaluating and potentially integrating third-party platforms like LiveKit 
• Collaborate directly with customer technical teams to understand deployment requirements, troubleshoot complex networking issues, and optimize performance 
• Develop robust media streaming backends using Go, including SFU/MCU implementations, media processing pipelines, and real-time data handling 
• Build responsive frontend experiences with TypeScript and React for seamless audio/video interactions across web and mobile platforms 
• Contribute to open-source media streaming solutions through Mattermost's GitHub platform, advancing the broader developer ecosystem 
• Implement comprehensive testing strategies for real-time media systems, including network simulation and performance benchmarking 
• Optimize streaming performance across diverse network conditions and security constraints typical in defense and enterprise environments 
• Mentor engineering team members on media streaming best practices and emerging A/V technologies 
• Work with product managers and designers to translate complex technical capabilities into intuitive user experiences 

 Requirements:

• BS in Computer Science, Computer Engineering, or related field/experience with focus on networking, media systems, or distributed computing 
• 5+ years of experience developing production audio/video streaming applications with demonstrated expertise in WebRTC 
• Deep understanding of modern web media technologies including Media over QUIC, WebCodecs, WebTransport, and emerging streaming standards 
• Strong networking fundamentals including UDP/TCP protocols, NAT traversal, STUN/TURN servers, and network optimization techniques 
• Experience building scalable real-time systems with technologies like Go, TypeScript, React, and PostgreSQL 
• Proven ability to architect and implement SFU/MCU media servers and handle complex multi-stream scenarios 
• Strong problem-solving skills for debugging network connectivity issues, media quality problems, and performance bottlenecks 
• Experience working directly with technical customers to gather requirements, resolve deployment issues, and optimize system performance 
• Excellent communication skills for explaining complex technical concepts to diverse audiences including customer technical teams 
• Ability to work independently across multiple time zones while maintaining strong collaboration with global team members
  
• For candidates residing in the U.S.: This role may require the ability to obtain and maintain a U.S. government security clearance in the future. As such, U.S. applicants must be U.S. citizens and eligible under applicable clearance requirements.
• Applicants must meet eligibility requirements for access to export-controlled information as defined by U.S. export control laws, including EAR and ITAR

 Preferences:

• Experience with third-party A/V platforms such as LiveKit, Agora, Twilio Video, or similar WebRTC-based solutions 
• Contributions to open-source projects 
• Experience with cloud infrastructure platforms (AWS, GCP, Azure) and container orchestration for media streaming workloads 
• Has worked fully remotely with global teams 
• Expertise in defense, intelligence, or security-focused workflows 

Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.