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VoIP Test Engineer
Location : Mountain View, CA-Onsite ( 5 days Onsite)
We are currently able to consider only W2 candidates for this role.
Overview:
Seeking a highly skilled Senior VoIP Test Engineer to support the migration and validation of its residential and enterprise voice platform as part of a transition from Voice to a third-party cloud-based telephony platform.
This role is focused on carrier-grade SIP validation, ATA/CPE device testing, TR-069 provisioning, and large-scale endpoint migration testing within a hands-on lab environment. The ideal candidate brings deep protocol-level expertise, strong troubleshooting capability, and an automation mindset to ensure platform reliability at scale.
Core Focus Areas:
Carrier-Grade VoIP Expertise
VoIP Test Engineer
Location : Mountain View, CA-Onsite ( 5 days Onsite)
We are currently able to consider only W2 candidates for this role.
Overview:
Seeking a highly skilled Senior VoIP Test Engineer to support the migration and validation of its residential and enterprise voice platform as part of a transition from Voice to a third-party cloud-based telephony platform.
This role is focused on carrier-grade SIP validation, ATA/CPE device testing, TR-069 provisioning, and large-scale endpoint migration testing within a hands-on lab environment. The ideal candidate brings deep protocol-level expertise, strong troubleshooting capability, and an automation mindset to ensure platform reliability at scale.
Core Focus Areas:
- ATA devices (Customer Premise Equipment)
- TR-069 provisioning
- Remote device lifecycle management
- SIP packet-level troubleshooting
- SIP over TLS / SRTP
- SBC interoperability validation
- Residential voice migration
- Lab-based validation
- Automation mindset (Python)
- CPE firmware validation
- NAT traversal testing
Carrier-Grade VoIP Expertise
- Strong hands-on experience with SIP protocol (REGISTER, INVITE, BYE, CANCEL, OPTIONS)
- Deep understanding of SIP response codes, authentication flows, and retransmission behavior
- Strong knowledge of SDP negotiation and RTP/RTCP validation
- Experience troubleshooting SIP over TLS and SRTP
- Hands-on experience with ATA devices (Poly, Grandstream, or similar)
- Strong experience with TR-069 remote provisioning and zero-touch configuration
- Experience validating device behavior behind NAT and residential gateways
- Experience designing and executing VoIP regression test cases
- Experience performing negative testing (malformed SIP headers, auth failures, TLS failures)
- Experience performing scale testing of endpoint registrations
- Strong Wireshark packet capture and log analysis expertise
- Proficiency in Python scripting
- Experience automating bulk SIP registration validation
- REST API validation experience
- SQL knowledge for reconciliation and migration verification
- Strong understanding of TCP/UDP, NAT traversal, firewall behavior, QoS, VLANs