Voice Telecommunications Network Engineer

Voice Telecommunications Network Engineer. -

Fully remote long term contract ..

Duration 1- year plus

VoIP, SIP/RTP/SRTP, Ribbon SBC, Metaswitch, Nokia/Siemens Voice Platforms, Oracle SBC, Telecom Routing & Provisioning, STIR/SHAKEN, CALEA, Cisco Networking (BGP/OSPF), Linux/Unix, Python/Bash, and Voice Network Troubleshooting.

Our Client, a multinational telecommunications technology company has an urgent and immediate need for a skilled Voice & Telecom Network Engineer to join their Voice Services team. This individual will play a critical role in the design, deployment, maintenance, and evolution of our Fixed Line and Voice over IP (VoIP) services across multiple platforms and delivery methods.

The selected engineer will be able to bring technical expertise across legacy and next-generation voice solutions, networking, automation, provisioning systems, and regulatory compliance technologies such as STIR/SHAKEN and CALEA.

Key Responsibilities:

Design and maintain routing, translation, and provisioning logic frameworks on platforms such as Metaswitch, Nokia, Ribbon, and Oracle SBCs.

Architect, implement, and support SBC and softswitch-based voice network infrastructure for residential and business services.

Manage hardware and software lifecycles of voice core platforms including CFS, Perimeta, HiQ, CS2K, vC20, and AS.

Oversee Fixed Line Mediation and Collection Servers, ensuring proper data acquisition and billing accuracy.

Lead proactive monitoring, alarm threshold configuration, and remediation of issues in our Service Assurance Platform (SAP).

Produce regular KPI reports and analytics to track service quality, performance, and SLA adherence.

Handle customer complaint escalations and perform root cause analysis for high-priority incidents.

Remote work environment, with participation in 24/7 on-call support rotations.

Provide subject matter expertise on voice services such as:

Voice over HFC

Voice through Fiber Gateways

SIP/PRI Trunking

Business Hosted Voice

Unified Communications as a Service (UCaaS)

Support provisioning, troubleshooting, and operations of telecom services and regulatory functions, including:

Voicemail, IVR, STP

ENUM, LNP, CRE, LCR

Record Mediation, Media Servers

Robocalling mitigation

STIR/SHAKEN, CALEA, and lawful intercept support

Online Charging Systems (OCS)

Minimum Qualifications

• Bachelor's or Master's degree in Electrical, Electronic, Telecommunications, or Software Engineering.

• 5+ years of experience in telecom/voice engineering roles.

• 3+ years of experience with Ribbon, Metaswitch and/or Nokia/Siemens core voice platforms or similar

• Deep knowledge of SIP, RTP, SRTP, SDP, DIAMETER, transcoding, and telecom signaling.

• Experience with Unix/Linux, scripting (e.g., Bash, Perl, Python), and automation tools.

• Hands-on experience with telecom routing protocols, voice translation tables, provisioning platforms, and network service monitoring.

• Solid grasp of Cisco networking technologies, including routing (BGP, OSPF), switching (VLANs, NAT, HSRP), and security (VPNs, ACLs).

• Demonstrated ability to lead troubleshooting during live outages and to document RCA and mitigation plans.

• Excellent communication skills, both technical and customer-facing.

• Must be available for off-hours maintenance windows and critical incident support.

Preferred Qualifications

• Experience with Ribbon CS2K/C20, Oracle SBCs, and 5ESS systems.

• Familiarity with mediation systems, billing collection frameworks, and data analytics tools.

• Experience working in large-scale service provider environments.

• Exposure to cloud-native telecom solutions (Kubernetes, Docker) and NFV environments.

• Knowledge of regulatory telecom frameworks and compliance tools (STIR/SHAKEN, CALEA, robocall mitigation, etc.).