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Senior Software Engineer (Voice Platform), Customer Systems
AppleAustin, Texas, United StatesSoftware and ServicesSenior5+ years
Apply Join a team building the next generation of large-scale voice and real-time communication platforms that power seamless customer and agent experiences across the globe. In this role, you will lead the design and development of highly scalable distributed systems that handle voice signaling, media processing, routing, and real-time communications for millions of interactions.
We are looking for experienced engineers who are passionate about solving complex technical challenges, driving architecture decisions, and building resilient low-latency systems at scale. You will collaborate across engineering, infrastructure, and product teams to help shape the future of modern communication platforms and customer engagement experiences.
As a Senior Voice Platform Software Engineer, you will play a key role in architecting, developing, and operating scalable voice infrastructure and real-time communication services used in high-volume customer interaction environments. You will work on technologies related to SIP signaling, media handling, WebRTC, distributed systems, and cloud-native platform development. This role requires strong software engineering fundamentals, deep technical expertise, and the ability to drive complex initiatives across multiple teams. You will contribute to platform architecture, scalability, resiliency, and operational excellence while mentoring engineers and influencing the technical direction of the platform
- Lead the design and development of scalable voice and real-time communication platform components
- Drive architecture and technical design discussions for SIP signaling, media processing, routing, and session management services
- Develop high-performance backend services using C or C++
- Troubleshoot and resolve complex issues related to voice quality, signaling, media flows, scalability, and distributed systems
- Collaborate across platform, infrastructure, client, and product engineering teams to deliver end-to-end communication solutions
- Improve platform scalability, resiliency, observability, automation, and operational efficiency
- Mentor engineers through technical guidance, design reviews, and code reviews
- Contribute to long-term platform strategy, reliability initiatives, and production operational excellence
- Drive testing, deployment automation, monitoring, and incident response improvements for voice platform services
- 5+ years of software development experience using C or C++
- Experience with real-time communication platforms such as FreeSWITCH, Kamailio, Asterisk, or similar technologies
- Strong experience developing scalable backend or distributed systems software
- Strong understanding of networking fundamentals including TCP/IP, HTTP, TLS, load balancing, and distributed system concepts
- Experience with SIP, RTP, and VoIP technologies
- Experience troubleshooting production systems and operating highly available services at scale
- Bachelor’s degree in Computer Science, Computer Engineering, or equivalent practical experience
- Experience with WebRTC and modern real-time communication architectures
- Familiarity with cloud-native architectures and container technologies such as Docker or Kubernetes
- Experience with scalable event-driven systems and distributed infrastructure technologies such as Kafka or Redis
- Experience driving technical design discussions and mentoring engineers across teams
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