CommIT Enterprises, Inc. is seeking a ECS Solution Engineer join the team in Quantico, VA. The Enterprise Collaboration System (ECS) Solution Engineer provides engineering, design, and integration support for Voice over Internet Protocol (VoIP) services across enterprise and tactical environments. This role is responsible for designing and implementing VoIP solutions that integrate with existing and future network infrastructure, supporting mission-critical capabilities such as Extension Mobility, Unified Messaging, Emergency Responder, and Call Center operations. The engineer will collaborate with cross-functional teams to ensure secure, reliable, and scalable voice services for USMC and DISA Voice over Secure Internet Protocol (VoSIP) environments. 

Established in 2001, CommIT is a Certified Veteran-Owned Small Business (CVOSB) providing innovative technical engineering and data science services. Our enterprise systems support includes the Department of Defense’s (DoD) GCSS-MC, CAC2S, TBMCS-MC, and the Department of Veteran’s Affairs’ (VA) telehealth communications. We offer acquisition management, systems engineering, Agile software development, cloud management, IT modernization, data analytics, cybersecurity, and training, including leading-edge DevSecOps, automated testing, and mobile application development.

Your essential job functions will include but may not be limited to-

• Engineer, design, and integrate VoIP services—including servers, switches, routers, and supporting equipment—into existing and future network architectures.
• Evaluate communication hardware and software solutions; provide recommendations based on performance, scalability, and security requirements.
• Troubleshoot LAN, BAN, WAN, and related network issues impacting VoIP performance or availability.
• Design VoIP solutions that incorporate Layer 3 switching capabilities and updated TACLANE configurations supporting USMC and DISA VoSIP integration and transition efforts.
• Design and configure auxiliary voice VLANs, PSTN interfaces, fax modules, and other components required to support enterprise voice systems.
• Configure and manage network devices required for VoIP service delivery, ensuring compliance with DoD and USMC cybersecurity and interoperability standards.
• Integrate VoIP services with PKI certificates and Active Directory network accounts to enable two-factor authentication for all domain account categories.
• Prepare technical documentation, system diagrams, engineering change proposals, and implementation plans.
• Provide technical support during deployment, testing, troubleshooting, and sustainment activities.

Required Experience and Education:

• Experience engineering and integrating VoIP services in enterprise or DoD environments
• Hands-on experience with Cisco Unified Communications Manager (CUCM) or similar platforms.
• Strong understanding of routing, switching, VLANs, and network protocols supporting VoIP.
• Experience with TACLANE configuration or similar Type 1 encryption devices.
• Familiarity with PKI integration and DoD cybersecurity requirements.
• Ability to troubleshoot complex network and voice interoperability issues.

Technical Certifications:

• Core Networking & Collaboration:
  • Cisco CCNA (Enterprise or Collaboration)
  • Cisco CCNP Enterprise
  • Cisco CCNP Collaboration (strongly preferred)
  • Cisco Certified Specialist – Collaboration Core
• DoD 8570 IAT Level III Certifications (advanced security)
  • CASP+ CE (CompTIA Advanced Security Practitioner)
  • Cisco CCNP Security
  • GIAC Security Essentials (GSEC)
  • GIAC Certified Incident Handler (GCIH)
  • CISSP (ISC2) – Certified Information Systems Security Professional
  • SSCP (if mapped to IAT III on contract; contract‑dependent)
• Secure Communications / DoD‑Specific:• TACLANE Certified Operator/Installer (GCN/GVNX)
  • DISA VoSIP/Voice Services training (if available)
  • DoD PKI Certificate Management Training

Preferred Skills:

• Experience supporting USMC or DISA networks.
• Knowledge of VoSIP configurations and secure voice architectures.
• Experience writing engineering documentation in compliance with DoD standards.

Additional Useful Certifications:

• ITIL Foundations
• Microsoft Identity & Access Administrator
• CompTIA CySA+

Security Requirements:

• Active DoD – Top Secret  

Equal Opportunity Employer:

CommIT Enterprises, Inc. is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.