Software Engineer (C, C++)

About Mux

Mux is a leading provider of video infrastructure solutions designed for developers. Our mission is to democratize video by addressing the complex challenges faced when building video applications, including video encoding, streaming, and monitoring. We aim to enhance the way people experience video content by offering reliable, scalable, and innovative tools that empower developers and businesses alike. With a strong focus on building a healthy and inclusive team, Mux welcomes diverse backgrounds and experiences, fostering a culture of growth, collaboration, and shared success.

Our team comprises experts from renowned technology companies such as Google, YouTube, Twitch, Reddit, Zencoder, and Fastly. Our founders have a proven track record in cloud video technology, having previously started and sold Zencoder and authored Video.js, the most popular HTML5 video player on the web. We organize Demuxed, the premier conference for video engineers globally, and are backed by top-tier investors including Coatue, Accel, Andreessen Horowitz, and Y Combinator. Our solutions serve a broad customer base, ranging from startups to established companies like Strava, Patreon, Vimeo, Robinhood, PBS, and Equinox, all of whom value our innovative approach and dedicated team.

About The Role

As a Software Engineer at Mux, you will be instrumental in developing our next-generation Video products that deliver exceptional user experiences to millions worldwide. Your role involves leading and executing complex projects within our Video stack and infrastructure, managing high volumes of video ingestion and processing—handling hundreds of thousands of videos and over a billion encodes per month through our proprietary, just-in-time transcoding architecture. You will influence the technical roadmap of our platform, collaborating closely with cross-functional teams to push the boundaries of video technology.

This position offers an exciting opportunity to work on scalable, high-performance systems that impact users globally and to shape the future of video infrastructure at Mux.

In this role, you will work across teams—including product, customer success, and engineering—to implement innovative solutions aligned with business and product strategies. You will be involved in all stages of development, from technical design and coding to testing, experimentation, deployment, and ongoing support. Your responsibilities will also include reviewing code, providing feedback on product specifications, and ensuring our systems are reliable, available, and production-ready. You will take ownership of project planning and delivery, acting as both a hands-on contributor and an architect, while actively contributing ideas to influence the team’s roadmap and priorities.

We value proactive problem solvers with a passion for building reliable distributed systems. You will promote best practices for fault tolerance, latency reduction, and observability, ensuring our platform remains robust and scalable. Your expertise in building and operating video systems in a service-oriented architecture will be vital in maintaining our high standards of quality and performance.

Qualifications

• 3-6 years of experience in backend and video engineering roles, with proficiency in Golang, C, C++, or similar languages.
• Successful track record of contributing to large-scale projects with end-user impact from inception to deployment.
• Expertise in designing and operating distributed video systems within a service-oriented architecture.
• Strong knowledge of fault tolerance, latency optimization, and observability best practices.
• Operational experience with Kubernetes, monitoring tools such as Grafana and Prometheus, and databases including CockroachDB, Clickhouse, and Redis.
• Familiarity with data streaming technologies like Kafka.
• Excellent communication and collaboration skills, with a problem-solving mindset.
• Ability to write high-quality, maintainable code across multiple services and teams.
  
  

Responsibilities

• Collaborate with cross-functional teams to develop and deliver innovative video products that meet customer needs.
• Participate in all phases of the development lifecycle, including technical design, coding, testing, deployment, and on-call support.
• Review code and design documentation, providing constructive feedback to ensure quality and consistency.
• Take ownership of project planning, execution, and delivery, acting as both a contributor and an architect.
• Influence the technical roadmap by proposing new ideas and improvements for video features and infrastructure.
• Implement and promote best practices for system availability, reliability, and production readiness.
• Maintain and enhance distributed video systems, ensuring fault tolerance and low latency.
• Monitor system performance and troubleshoot issues proactively to minimize downtime and improve user experience.
  
  

Benefits

• Flexible PTO and 11 company holidays to support work-life balance.
• Weekly no-meeting days and quarterly focus weeks to foster productivity and well-being.
• Comprehensive health, dental, and vision insurance coverage (100% employee and 65% dependent premiums).
• Fully funded fertility benefits and access to HSA and FSA plans.
• Short-term and long-term disability insurance, group life, and travel accident coverage.
• Employee Assistance Program (EAP) and medical support concierge services.
• 401(k) retirement plan with company matching.
• Paid parental leave to support new families.
• Investment in professional development through stipends for courses and certifications.
• Reimbursements for headphones, mobile devices, and subscriptions for Mux customer services.
• Lunch reimbursement programs and other wellness initiatives.
  
  

Equal Opportunity

Mux is an Equal Opportunity employer committed to fostering an inclusive and diverse workplace. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability, or any other protected class. We believe that diversity enhances our team and drives innovation, and we are dedicated to providing equitable opportunities for all applicants and employees.