VoIP Softswitch & NOC Technician & Delivery (India)

Signalmash DBA Mash Technologies Corporation; Poland; On-site; PLN 23,000 - 47,000; Full time

Benefits offered by this job

Competitive salary

Comprehensive benefits

Clear growth path

Job summary

A telecommunications provider is seeking an experienced VoIP Softswitch & NOC Technician to manage their Class 4 softswitch platform. This fully remote role involves configuring softswitches, managing interconnections, and analyzing call quality with a focus on maintaining high network performance. Ideal candidates will have 2+ years with Class 4 platforms and a strong understanding of VoIP protocols. The position offers a competitive salary and comprehensive benefits package aligned with US business hours.

Qualifications

• 2+ years hands-on experience with Class 4 softswitch platforms.
• Strong understanding of VoIP protocols like SIP and RTP.
• Experience with packet capture and analysis tools.
• Strong understanding of SIP, RTP, RTCP, SDP.
• Proficiency with packet capture tools (Wireshark, tcpdump).
• Solid TCP/IP, UDP networking fundamentals and QoS.
• Experience with NAT/firewalls, SBCs and on-call procedures.
• Scripting (Python, Bash) for automation (preferred).

Responsibilities

• Configure and manage Class 4 softswitch routing including LCR optimization.
• Analyze PCAPs using Wireshark/tcpdump to diagnose issues.
• Create and manage trouble tickets coordinating with customers and vendors.
• Manage billing and rating systems for accurate invoicing.
• Respond to alerts and participate in 24/7 on-call coverage.
• Document configurations and interconnection specs.
• Collaborate with carriers, customers, and vendor partners.
• Test new routes/trunks and validate call flows.

Skills

Class 4 softswitch platforms

VoIP protocols: SIP, RTP, RTCP, SDP

Packet capture/analysis (Wireshark, tcpdump)

Strong documentation habits

Ability to work independently

Tools

PeerEdge by 46 Labs

CDR analysis tools

SBCs

Job description

VoIP Softswitch & NOC Technician & Delivery (India)

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

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

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