VoIP Engineer

Overview

We are seeking an experienced VoIP Engineer to design, implement, secure, and support enterprise voice and collaboration systems in geographically dispersed environments. The ideal candidate has deep expertise in large-scale Cisco Unified Communications and delivers secure, reliable voice and video services supporting mission-critical federal and defense operations.

• Engineer and administer Cisco UC platforms including CUCM, Unity Connection, Expressways, Jabber, and related systems across NIPR/SIPR and VoSIP networks.
• Monitor, maintain, and optimize UC systems for performance and availability using RTMT and Solar Winds.
• Perform system upgrades, migrations, and patching for UC infrastructure, including Cisco UCS, VG450 gateways, and VMware environments.
• Implement DISA STIGs, remediate ACAS findings, and maintain DoW cybersecurity compliance.
• Provision and deploy telephony devices, including BAT files, templates, and automation workflows.
• Develop and maintain technical documentation such as system designs, installation guides, and operational procedures.
• Collaborate with network, cybersecurity, and infrastructure teams to resolve complex UC issues.
• Conduct site surveys, produce as-built documentation, and recommend design improvements for scalability and security.
• Provide Tier II/III support, user training, and end-user documentation.
• Support planning and deployment of new UC services and contribute to technology roadmaps.

• 7+ years of experience engineering and administering Cisco Unified Communications in enterprise or DoW environments.
• CCNA certification.
• Hands-on experience with CUCM, Unity Connection, Expressways, SIP, QoS, and VG gateways.
• Experience upgrading and migrating Cisco UC systems, including UCS and VMware ESXi.
• Strong knowledge of DISA STIGs, IA controls, and DoW security standards.
• Proven ability to troubleshoot complex UC issues in distributed networks.
• Experience with RTMT and Solar Winds.
• Strong technical documentation skills.
• Excellent technical, communication, collaboration, and customer engagement skills; ability to multi-task, problem solve, and work in a fast-paced environment with attention to detail.

• Must possess baseline certification(s) to achieve a minimum of DoW 8570.01-M Information Assurance Technical (IAT) Level II (e.g., CompTIA Security+ CE) prior to start. May need to obtain an additional computing environment certification (e.g., CSSP sections certifications such as CCNA-Security, CEH, CND, etc.) within six months of hire depending on position designation.
• When 8140 requirements are implemented on program/contract, employees will need to conform to 8140 certification standards.

• Active SECRET DoW Security Clearance required upon start.

• Preferred bachelor’s degree in information technology, engineering, or relevant field with a minimum of 7+ years of relevant experience.

• Hybrid: onsite required in Falls Church, VA three days per week, with the option to work remotely two days per week. Onboarding/transition period requires on-site support up to 60 days (must complete in-process with all credentials, accounts, access, and understanding of role and responsibilities before telework allowed). GECOS work schedules are subject to change on direction by mission requirements from GDIT or USG leadership.

• Up to 10% possible

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans