PL Network Engineer

Probity Inc.; Herndon (VA); On-site; USD 120,000 - 160,000; Full time

Job summary

Probity Inc. seeks a VOIP Engineer to join a government-focused team in Herndon, VA. The role requires designing, implementing, and maintaining voice systems, including SIP/H.323, with a strong background in LAN/WAN and security.

You will brief high-level personnel, author technical documents, and collaborate across disciplines to meet client missions. Active clearance is mandatory.

Qualifications

• Active Top Secret/SCI with Polygraph clearance required.
• 7–10 years of experience designing communications systems.
• Strong Microsoft Systems Engineering background.
• Expertise in Cisco routing and switching and network architecture planning.
• VPN technologies, OSPF, EIGRP, BGP knowledge.
• Voice and video solutions including SIP and H.323 configuration management.
• Proficient in PowerShell scripting and security tooling (McAfee).
• Excellent written and oral communication skills; capable briefing high-level personnel.
• Experience with Microsoft Office (Access) and Lotus Notes.

Responsibilities

• Design, implement, and maintain LAN/WAN and voice systems for government customers.
• Configure and troubleshoot LAN devices, VPN concentrators, and security features.
• Prepare technical documents, reports and briefings for customers.
• Provide independent and team-based problem solving across disciplines.
• Communicate designs and results to non-technical stakeholders.

Skills

MS Systems Eng

Hyper-V

PowerShell

McAfee

Technical communication

Independent problem solving

Cisco networking

Remote administration

VPN technologies

Voice/Video tech knowledge

Network architecture

OSPF/EIGRP/BGP

SIP/H.323

7–10 years experience

Written and oral communication

Briefings

MS Office & Lotus Notes

Tools

Wireshark

Cisco Routers/Switches

SBCs/TLS

Hyper-V

MS Office

Lotus Notes

Job description

PLEASE NOTE: This position requires an ACTIVE Top Secret/SCI Clearance with Polygraph. To be considered for this position, you MUST have an ACTIVE Clearance Level of Top Secret/SCI with Polygraph

Position Code: 27-NE0806-1

Position Description:

PLEASE READ ** This position is for a VOIP Engineer **

Work as part of a collaborative, multidiscipline team in support of U.S. Government and provide technical expertise in the field of network engineering and VOIP. Possesses a mix of technical skills in networking (TCP/IP, QoS, LAN/WAN), VoIP protocols (SIP, RTP, H.323), and platforms (Cisco, Asterisk, 3CX), alongside soft skills like problem-solving, communication, and troubleshooting using tools like Wireshark for complex call routing, security (SBCs, TLS), and cloud integration to design, implement, and maintain voice systems.

• Strong background designing and implementing Local and Wide Area Networks (LAN/WAN)
• Advanced knowledge of TCP/IP Networking
• Advanced experience with Voice and Video technologies (engineering vs implementation)
• Experience configuring and trouble-shooting LAN Switches, Routers, and Firewalls and VPN concentrators.
• Ability to convey technical designs, ideas and results to non-technical audiences and provide briefings to high-level government personnel.
• Experience in authoring documents (reports, briefings, etc,) to support customer missions.
• Demonstrated ability to apply the engineering design process to discover innovative methods to solve technical problems and meet client requirements.

Mandatory Skills:

• Strong background in Microsoft Systems Engineering and providing support to those systems.
• Strong knowledge of virtualization products with a focus on Hyper-V.
• Proficiency in scripting languages with a focus on PowerShell.
• Experience with McAfee product suite.
• Demonstrated capacity to understand and communicate technical ideas, concepts, and thoughts across multiple technical and non-technical stakeholders.
• Demonstrated ability to independently determine and develop approach to solutions. Must have knowledge of Cisco Routing and Switching, and network architecture planning.
• Must have knowledge of remote administration and secure Virtual Private Networking.
• Must understand commercial encryption standards and their application in IP networking.
• Must have knowledge of VPN technologies, OSPF, EIGRP, BGP, IP Multicasting
• Must have knowledge of voice and video solutions to include Cisco, Polycom, and Avaya configuration management and endpoint management including SIP and H.323 protocols.
• 7-10 years of relevant experience designing communications systems.
• Must have strong written and oral communication skills.
• Excellent analysis and critical thinking skills
• Ability to work independently as well as within small and large groups
• Capable of preparing and presenting briefings
• Experience with Microsoft Office product line, including Microsoft Access; experience with Lotus Notes

Optional Skills:

• Knowledge of Cisco and PolyCom VTC technology
• An understanding of Private Branch Exchange telephony
• An ability to navigate and configure Linux operating systems
• An understanding of wired data transport mediums to include Category 5e/6 and fiber optics.
• Prior deployment to foreign field areas in support of customer mission
• Prior experience communicating official traffic in the customer Electronic Messaging System (EMS)
• Certifications such as CCNP, CCNA, CCIE, MCSE
• Familiar with military communications
• Familiar with satellite and wireless communications.