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