Signalmash
51 - 200 employees
Founded 2020
📡 Telecommunications
🔌 API
☁️ SaaS
Telecommunications • API • SaaS
Signalmash is a boutique communications platform (CPaaS) that provides businesses with carrier-grade messaging and voice services, developer-friendly APIs, and white‑glove support. Their offerings include Messaging APIs (10DLC, toll-free, short code), RCS and MMS/SMS, SIP/Voice trunking, CCaaS/hosted PBX, phone number provisioning and branded caller ID, plus compliance, KYC, billing and communications operations as managed services. Signalmash targets developers, ISVs, resellers and enterprises seeking reliable, compliant communications infrastructure and personalized onboarding and support.
VoIP Softswitch & NOC Technician – Delivery
Job not on LinkedIn
🕒 November 27, 2025
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Signalmash
51 - 200 employees
Founded 2020
📡 Telecommunications
🔌 API
☁️ SaaS
Telecommunications • API • SaaS
Signalmash is a boutique communications platform (CPaaS) that provides businesses with carrier-grade messaging and voice services, developer-friendly APIs, and white‑glove support. Their offerings include Messaging APIs (10DLC, toll-free, short code), RCS and MMS/SMS, SIP/Voice trunking, CCaaS/hosted PBX, phone number provisioning and branded caller ID, plus compliance, KYC, billing and communications operations as managed services. Signalmash targets developers, ISVs, resellers and enterprises seeking reliable, compliant communications infrastructure and personalized onboarding and support.
📋 Description
• 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
🏖️ 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
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