Voip Engineer

Role: Telephony Automation & VoIP Platform Engineer Location: Mountain View CA ( 5 days Onsite) Job Type: Contract We are seeking a Telephony Automation & VoIP Platform Engineer to support large-scale voice platform operations and migrations in a telecom/ISP environment. This is a hands-on engineering role combining VoIP, device provisioning, cloud automation, API validation, and data analysis. The engineer will act as a platform owner, working across systems rather than in a siloed QA or automation-only role. Key Responsibilities VoIP Platform & Device Management • Manage and support VoIP platform Qualification, such as registration / monitoring / calling / billing capabilities • Configure, provision, and maintain ATA devices, specifically Polycom ATA 400. • Perform remote device provisioning and lifecycle management using TR-069. • Troubleshoot SIP signaling, TLS security, and voice traffic issues. Large-Scale Migrations & Validation • Lead and support large-scale customer migrations (tens of thousands of users) from legacy voice platforms to modern VoIP stacks. • Validate end-to-end provisioning, peering, and service operability post-migration. • Perform pre- and post-migration data validation to ensure accuracy and completeness. Automation & Scripting • Develop scripts (primarily Python) to automate: • Sequences of REST API calls • Validation workflows • Error detection and reporting • Support automation for testing, provisioning validation, and operational checks. • Work in Linux environments to support scripts and system operations. API & Integration Work • Validate data exchanged between vendor-provided devices, vendor APIs, and internal systems. • Use REST APIs and tools such as Postman to test, validate, and debug integrations. • Create or support APIs for internal system consumption of validated data. Data Analysis & Troubleshooting • Write SQL queries for data collection, analysis, and reconciliation. Experience with BigQuery and Looker studio prefferred • Use Wireshark / packet capture tools to troubleshoot TCP/IP, SIP, and TLS issues. • Collaborate with vendors, engineering teams, and operations teams to resolve issues. Mandatory Skills (Must-Have) Telephony & Networking • Strong VoIP experience • ATA device experience (mandatory), specifically Polycom ATA 400 • SIP & TLS • TCP/IP fundamentals • Wireshark / packet capture Device Provisioning • TR-069 (remote provisioning and device management) Automation & Cloud • Python scripting • General scripting (Shell/Bash) • Linux system administration • Google Cloud Platform (GCP) experience APIs & Data • REST APIs • Postman • SQL (data validation and analysis) Domain Background • Experience working in a Telecom / ISP / ITSP environment Nice-to-Have Skills • Cloud certifications (GCP preferred) • Experience with large-scale telecom customer migrations • Vendor integration and coordination experience • Exposure to voice platform transitions (legacy → third-party VoIP platforms) Ideal Candidate Background • Telephony / VoIP Engineer • Telecom Platform Engineer • ITSP / ISP Engineer • VoIP Automation or Migration Engineer Candidates should be comfortable owning a platform, understanding how systems fit together, and working across teams to deliver reliable voice services.