Senior Voice & Video Platform DSP Engineer

Redefine the future of customer experiences. One conversation at a time. At Nextiva, we’re reimagining how businesses connect, bringing together customer experience and team collaboration on a single, conversation‑centric platform powered by AI and driven by human innovation.

Our culture is forward‑thinking, customer‑obsessed and built on the belief that meaningful connections drive better business outcomes. Whether it’s through our signature Amazing Service®, the technology we create, or the experiences we cultivate, connection is at the core of who we are.

• Develop and maintain backend services for voice/video calling, including signaling servers, call routing logic, and media gateways, using SIP and WebRTC.
• Implement and tune digital signal processing algorithms for superior call audio, including noise suppression, echo cancellation, jitter buffer optimization, and voice activity detection.
• Optimize media streaming and codec configurations (Opus, G.711, H.264, etc.) to balance quality and bandwidth in real‑time communication.
• Embed speech‑to‑text (ASR) and text‑to‑speech (TTS) capabilities, enabling AI voice agents to participate in calls and manage conversation flows.
• Design services with a cloud‑native approach (microservices, containers) for deployment on Kubernetes, ensuring high availability and five‑9s uptime across global data centers.
• Continuously profile, tune, and improve end‑to‑end system performance to minimize call setup times and audio latency.
• Use CI/CD pipelines to deploy updates safely with zero downtime, write comprehensive automated tests, and participate in on‑call rotation to resolve production issues.
• Collaborate closely with Product Managers, front‑end teams, AI/ML teams, and network engineers.

• 5+ years of experience developing VoIP or real‑time communication systems; strong knowledge of SIP, WebRTC, RTP, and NAT traversal.
• Hands‑on experience with real‑time audio processing, noise reduction, echo cancellation, jitter buffers, and voice QoS techniques.
• Proficiency in C/C++ for high‑performance, multi‑threaded systems programming; experience with Go or Java for microservices.
• Experience building and deploying services in a cloud‑native environment (Docker, Kubernetes) on AWS, GCP, or Azure.
• Exposure to integrating speech recognition and text‑to‑speech in applications, familiarity with voice assistants or IVR systems.
• Understanding of securing voice communications (TLS, SRTP) and safeguarding customer data (GDPR, HIPAA considerations).
• Comfortable with CI/CD, infrastructure‑as‑code, logging, monitoring, and incident response.
• Excellent collaboration, communication, and documentation skills in Agile teams.

• Drives Results:
  Action‑oriented, solves problems, and celebrates success.
• Critical Thinker:
  Data‑driven, forward‑thinking, and anticipates risks and dependencies.
• Right Attitude:
  Team‑oriented, resilient, and committed to service, learning, and respect.

• Health – Multiple health plan options (medical, dental, vision, telemedicine).
• Insurance – Life, disability, and supplemental indemnity plans.
• Work‑Life Balance – Flexible Time Off, PTO, paid sick time, parental bonding leave, and paid holidays.
• Financial Security – 401(k) with company match, Health Savings Accounts, and Dependent Care FSA.
• Wellness – Employee Assistance Program and comprehensive wellness initiatives.
• Growth – Ongoing learning and development opportunities and career advancement.

Nextiva is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We prohibit discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

Nextiva participates in the E‑Verify Program where and as required by law.

Founded in 2008, Nextiva has grown into a global leader trusted by over 100,000 businesses and more than 1 million users worldwide. Headquartered in Scottsdale, Arizona, with teams across the globe, we are the future of customer experience and team collaboration through an AI‑powered, conversation‑centric platform.