Telecom & Infrastructure Engineer

About ClearGrid

ClearGrid is on a mission to revolutionize the debt resolution industry. Were using AI automation and real-time data to completely rethink how debt collection works unlocking better outcomes for institutions and individuals alike. Think of us as rebuilding the collections starting from scratch with modern tools.

Were a fast-growing startup with ambitious goals and were looking for builders who are hungry to make a real dent in a space with massive untapped potential.

Role Overview

We are seeking a highly skilled and experienced Telecom & Infrastructure Engineer Voice & Telco Systems. This role owns the end-to-end telecom and voice infrastructure that connects onpremise telco providers (ISDN) to our cloudhosted PBX and AI systems. The engineer will be responsible for
designing maintaining troubleshooting and scaling voice connectivity while acting as the technical
owner for telco vendors especially across UAE and Saudi Arabia.
This is a handson role. We are not looking for a paper architect or a pure IT admin we need someone who understands real-world telco problems knows how carriers work in the Middle East and can independently drive solutions

Key Responsibilities

Telecom & Voice Infrastructure

• Own and maintain ISDN PRI (E1) connectivity terminated at office locations

• Configure and manage ISDN gateways / PBX hardware used for ISDN SIP conversion

• Ensure clean ISDN signaling (Q.931 / Euro ISDN / QSIG)

• Handle DID mapping CLI presentation channel capacity and scaling

SIP PBX & Cloud Integration

• Manage SIP trunks between onprem gateways and cloudhosted PBX (AWS)

• Troubleshoot SIP signaling RTP media codecs DTMF and audio issues

• Debug common issues such as oneway audio call drops call setup failures

• Work with Yeastar / Asterisk / FreeSWITCHbased systems (or similar)

Network & VPN Connectivity

• Ensure stable sitetosite VPN connectivity for SIP/RTP traffic

• Coordinate with firewall setups (Fortinet or equivalent)

• Understand NAT traversal and voicespecific networking constraints

Vendor & Telco Management & Operations (Critical Part of the Role)

• Serve as the main technical liaison for telecommunications vendors.

• Proactively identify evaluate and integrate ISDN/voice carriers.

• Manage and coordinate the end-to-end process: provisioning migrations testing and cutovers.

• Resolve escalated issues by engaging directly with carrier NOCs and field engineers.

• Enforce quality standards challenging vendors on unacceptable routing signaling or service quality.

Operations & Documentation

• Perform rootcause analysis for telecom incidents

• Create and maintain architecture diagrams and runbooks

• Document call flows vendor dependencies and recovery procedures

• Support expansions new office setups and vendor transitions

Requirements

• Strong handson experience with ISDN PRI (E1) configuration and troubleshooting

• Solid understanding of SIP RTP codecs DTMF and call flows

• Experience working with PBX systems (Yeastar Asterisk FreeSWITCH Cisco etc.)

• Direct experience dealing with telco providers (not via middlemen only)

• Mandatory: Regional Vendor Knowledge (UAE & KSA)

Proven knowledge of where and how to procure ISDN / voice connectivity in:

• UAE

• (DU Etisalat)

• Saudi Arabia

• (STC Salam Mobily Zain)

Familiar with:

• Local telco procurement processes

• DID allocation and CLI regulations

• Provisioning lead times and dependencies

• Common carrier limitations and workarounds

Able to independently:

• Shortlist vendors

• Coordinate installations and migrations

• Manage carrier escalations endtoend

• Preferred Experience

• Sitetosite VPNs for voice traffic

• AWS networking basics

• Fortinet or enterprise firewall exposure

• Experience with AudioCodes Sangoma or Patton gateways

• SBC or carrier interconnect experience

Why Join ClearGrid

• Real ownership: Youll play a central role in building products that redefine how collections work in the future

• Massive industry impact: This is one of those rare spaces where almost everything is still to be built.

• High-growth team: Were scaling fast and the systems tools and processes you help create will shape our foundation.