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Senior Software Engineer (Voice Platform), Customer Systems

Apple· Software and Services
Apply on company site
Hybrid (Sunnyvale, CA), Hybrid (Austin, TX)$184.7k - $277.6kFull-timePosted 4mo ago

About the role

Senior Voice Platform Software Engineer to architect, develop, and operate scalable voice infrastructure and real-time communication services for high-volume customer interactions. Focus on SIP signaling, media handling, WebRTC, distributed systems, and cloud-native development. Lead design discussions, mentor engineers, and drive reliability and operational excellence across cross-functional teams.

Responsibilities

  • 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

Qualifications

  • 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

Skills

Required:C or C++SIPRTP/VoIPDistributed systemsNetworking fundamentals
Nice to have:WebRTCCloud-native / Docker / KubernetesKafka / Redis

Benefits

  • Comprehensive medical and dental coverage
  • retirement benefits
  • discounted products and free services
  • reimbursement for certain educational expenses including tuition
  • discretionary bonuses or commission payments and relocation eligibility
  • Stock programs including discretionary RSUs and Employee Stock Purchase Plan
Last updated Oct 23, 2026. Interested? Apply on the company site.

About Apple

Discover the innovative world of Apple and shop everything iPhone, iPad, Apple Watch, Mac, and Apple TV, plus explore accessories, entertainment, and expert device support.

Discover the innovative world of Apple and shop everything iPhone, iPad, Apple Watch, Mac, and Apple TV, plus explore accessories, entertainment, and expert device support.

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