VoIP Softswitch & NOC Technician & Delivery (India)

Job Description This is a remote position. Signalmash is a telecommunications provider delivering high-quality voice services and carrier-grade solutions. We’re looking for an experienced VoIP Softswitch & NOC Technician to join our technical operations team in India. In this role, you’ll be at the core of our voice infrastructure, managing our Class 4 softswitch platform, establishing and maintaining carrier interconnections, and ensuring network performance and reliability during US business hours. What You’ll Do Configure and manage Class 4 softswitch routing, including LCR optimization and traffic management Configure and maintain billing and rating systems for accurate call processing and invoicing Set up and manage interconnections with customers, carriers, and vendor partners Analyze PCAPs using Wireshark/tcpdump to diagnose call quality, routing, and protocol issues Monitor system performance, capacity, and call quality through NOC tools Create, manage, and resolve trouble tickets, coordinating with customers and vendors Test and validate new routes and trunks for correct call flow and audio quality Troubleshoot SIP signaling, media path, codec, and connectivity issues Maintain detailed documentation of configurations, network diagrams, and interconnection specs Respond to alerts/alarms to minimize disruptions and maintain SLAs Participate in on-call rotation for 24/7 coverage Requirements 2+ years hands-on experience with Class 4 softswitch platforms Experience with PeerEdge by 46 Labs strongly preferred, or similar platforms (SipNav, DeNova Labs, Veriswitch, FreeSWITCH, Kamailio, OpenSIPS) Proven experience configuring routing, billing, and rating systems Strong understanding of VoIP protocols: SIP, RTP, RTCP, SDP Proficiency with packet capture/analysis tools (Wireshark, tcpdump) Solid understanding of TCP/IP, UDP, networking fundamentals, and QoS Experience diagnosing codec issues, latency, jitter, and packet loss Familiarity with firewalls, NAT traversal, and SBCs Experience with NOC ticketing systems and procedures Strong documentation habits and attention to detail Excellent written and verbal English communication Ability to work independently and handle multiple priorities Preferred Experience with CDR analysis and fraud detection/prevention Knowledge of SS7, ISUP, or TDM-to-IP gateways Scripting (Python, Bash, or similar) for automation Relevant industry certifications (Cisco, Juniper, VoIP-specific) Experience in a carrier / wholesale telecom environment Benefits Competitive salary and comprehensive benefits Fully remote role aligned with US business hours Work on carrier-grade, cutting-edge VoIP infrastructure Collaborative team with strong telecom expertise Clear growth path and opportunities for skill development Direct impact on critical communications services