VoIP Softswitch & NOC Technician & Delivery (India)

This is a remote position. Signalmash is a telecommunications provider delivering high-quality voice services and carrier-grade solutions. We’re looking for an experiencedVoIP Softswitch & NOC Technicianto 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 withPeerEdge by 46 Labsstrongly 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 Originally posted on Himalayas