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
Time-zone restrictions (UTC offsets): -10, -9, -8, -7, -6, -5, 14