Session Border Controller

Telecommunications Engineering Specialist – Winchester, VA (Active Secret Clearance Required)

Telecommunications Engineering Specialist

πŸ“ Location: Winchester, VA (Onsite)
πŸ’Ό Employment Type: Full-Time
πŸ•’ Schedule: Monday–Friday, 8:30 AM – 5:00 PM (ET)
πŸ”’ Security Clearance: Active Secret Clearance Required
🚫 Visa Sponsorship: Not Available
🚚 Relocation Assistance: Available
πŸ’° Compensation: $151,000 – $180,000

Overview

A leading communications technology organization is seeking a Telecommunications Engineering Specialist to support mission-critical voice modernization and emergency communications programs within a federal environment.

This role focuses on Ribbon Federal Edge deployments, SIP interconnection engineering, Session Border Controllers (SBCs), and E-911/NG911 call routing integration supporting Army and public safety communications networks.

Key Responsibilities

Telecommunications Engineering

  • Support deployment and integration of Ribbon Federal Edge gateways.

  • Design and support SIP interconnections and policy routing.

  • Analyze and troubleshoot VoIP and SIP call flow issues.

  • Support connectivity between Federal Edge, DISA VISP, and Army PSAP systems.

  • Conduct deployment validation and readiness assessments.

E-911 & Public Safety Communications

  • Support E-911 and NG911 routing requirements.

  • Troubleshoot emergency call routing and PSAP integration issues.

  • Assist with call flow analysis and performance optimization.

  • Identify technical risks and recommend mitigation strategies.

Network & Systems Support

  • Support Session Border Controller (SBC) deployments.

  • Track engineering issues and provide technical recommendations.

  • Assist with interoperability testing and gateway performance improvements.

  • Participate in technical coordination across multiple stakeholders.

Required Qualifications

Experience

  • 10+ years of Telecommunications Engineering experience.

  • 5+ years of VoIP and SIP Engineering experience.

  • Experience supporting large-scale voice communications environments.

Technical Expertise

βœ” Ribbon Communications / Sonus / Genband

βœ” Session Border Controllers (SBCs)

βœ” SIP Signaling & Interconnects

βœ” VoIP Engineering

βœ” E-911 / PSAP Integration

βœ” Wireshark Packet Analysis

βœ” SIP Call Flow Troubleshooting

βœ” Emergency Communications Networks

Security Requirements

  • Active Secret Security Clearance (Required).

Education

  • Bachelor's Degree in:

    • Telecommunications

    • Engineering

    • Information Technology

    • Related Field

Equivalent experience may be considered.

Preferred Qualifications

  • DISA VISP experience.

  • Army Voice Modernization (VMOD) experience.

  • NG911/Public Safety Communications background.

  • PSAP interconnection experience.

  • Cisco CCNP or CCIE certification.

  • Federal or DoD telecommunications experience.

Ideal Candidate

The ideal candidate is a senior telecommunications engineer with deep expertise in:

  • SIP and VoIP architecture.

  • Ribbon/Sonus/Genband technologies.

  • Session Border Controllers.

  • E-911 and NG911 call routing.

  • Public Safety Answering Point (PSAP) integrations.

  • Federal and DoD telecommunications environments.

They should be comfortable troubleshooting at both the network and packet level using Wireshark and have experience supporting mission-critical emergency communications systems.

Candidate Snapshot

Requirement

Details

Experience

10+ Years

VoIP/SIP Experience

5+ Years

Clearance

Active Secret Required

Location

Winchester, VA (Onsite)

Industry

Defense / Telecommunications

Education

Degree or Equivalent Experience

Travel

Minimal

Relocation

Available

Sponsorship

Not Available

Screening Questions

  1. Do you currently hold an Active Secret Security Clearance?

  2. How many years of Telecommunications Engineering experience do you have?

  3. How many years of VoIP/SIP Engineering experience do you have?

  4. What experience do you have with Ribbon Communications, Sonus, or Genband solutions?

  5. Have you deployed or supported Session Border Controllers (SBCs)?

  6. Describe your experience with E-911, NG911, or PSAP integrations.

  7. Have you worked on DISA VISP, Army VMOD, or other DoD telecommunications programs?

  8. How have you used Wireshark for SIP or VoIP troubleshooting?

  9. Are you able to work onsite in Winchester, VA Monday through Friday?

What Makes Someone Successful in This Role?

  • Strong SIP and VoIP troubleshooting expertise.

  • Deep understanding of emergency communications networks.

  • Hands-on experience with Ribbon Federal Edge and SBC technologies.

  • Ability to analyze packet captures and call flows using Wireshark.

  • Experience operating within federal or defense environments.

  • Strong communication skills and ability to coordinate across technical and operational teams.

  • Active Secret clearance and familiarity with mission-critical communications systems.

Senior VoIP Engineer – SIP, SBC & Voice Platforms (Contract, Onsite)

Senior Voice - VoIP Engineer (Contract)

πŸ“ Location: Philadelphia, PA / Mount Laurel, NJ / Denver, CO (On-site)
πŸ“… Duration: 12 months
πŸ’² Rate: $50 – $60 per hour

πŸš€ Overview
An exciting opportunity for a Senior Voice / VoIP Engineer to take ownership of large-scale voice platforms in a high-impact environment. This role is ideal for someone who thrives on solving complex technical challenges, working autonomously, and contributing to cutting-edge voice and communication solutions.

πŸ”§ Key Responsibilities
πŸ”Ή Design and support SIP-based voice and VoIP solutions, including call center and IVR systems
πŸ”Ή Troubleshoot SIP signalling, media flows, and complex voice-related issues across multiple systems
πŸ”Ή Translate business requirements into scalable and efficient technical designs
πŸ”Ή Operate independently, owning technical decisions and driving outcomes
πŸ”Ή Collaborate with engineering teams on design, escalation, and certification activities

βœ… Required Skills & Experience
πŸ”Ή Strong hands-on expertise with SIP protocols, signalling, and media troubleshooting
πŸ”Ή Solid experience working within Linux environments (CLI-based support and diagnostics)
πŸ”Ή Proven background in VoIP platforms (PBX systems, SIP trunking, or service provider environments)
πŸ”Ή Strong systems-level problem-solving across multiple technologies
πŸ”Ή Basic scripting/automation experience
πŸ”Ή Exposure to APIs such as SOAP or REST

⭐ Preferred Experience
πŸ”Ή Experience with Session Border Controllers (SBCs) (e.g., Oracle/Acme Packet or similar)
πŸ”Ή Familiarity with carrier-grade voice platforms (e.g., BroadWorks or similar)
πŸ”Ή Exposure to Cisco voice technologies
πŸ”Ή Experience supporting large-scale, multi-region or global voice deployments

🎯 Additional Details
πŸ”Ή Experience Level: Mid-Senior (10+ years)
πŸ”Ή Education: Bachelor’s degree preferred
πŸ”Ή Function: Information Technology
πŸ”Ή Industry: IT & Services
πŸ”Ή Visa Sponsorship: Not available
πŸ”Ή Relocation Assistance: Not available

πŸ’‘ Why This Role?
πŸ”Ή Work on complex, enterprise-scale voice systems
πŸ”Ή High level of autonomy and technical ownership
πŸ”Ή Opportunity to make a real impact in a fast-paced, innovative environment