# Unified Communication Sr Principal Engineer

**Company**: GDIT
**Location**: Fort Meade, MD
**Work arrangement**: hybrid
**Experience**: senior
**Job type**: full-time
**Salary**: $164,382 - $201,250
**Category**: Engineering
**Industry**: Technology

**Apply**: https://gdit.wd5.myworkdayjobs.com/en-US/External_Career_Site/job/USA-MD-Fort-Meade/Unified-Communication-SME-Engineer_RQ230016-1?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_71f432a7-e82

## Description

GDIT is seeking a Unified Communication Senior Principal Engineer Lead in support of the Defense Information Systems Agency (DISA) Global Video Services (GVS) business area. This position is a combination of remote (20%) and onsite (80%) support in Fort Meade, MD.

As a Unified Communication Senior Principal Engineer Lead, you'll play a crucial role in advancing our communication infrastructure to deliver seamless, secure, and efficient unified capabilities (UC). As the engineering team lead, you will provide technical direction, coordinate a team of engineers, prioritize engineering efforts, and ensure successful delivery of mission-critical capabilities.

Responsibilities:

- Lead a team of engineers, establish technical direction, coordinate engineering priorities, and ensure successful execution of modernization and sustainment initiatives in support of the customer’s mission.

- Responsible for leading all activities related to re-baselining and maintaining the engineering lab environment ensuring it is current and represents the customers production environment.

- Serve as an expert for migration from legacy video infrastructure toward modern, cloud-capable UC platforms; support platform upgrades, Smart Licensing transitions, and hardware refresh projects.

- Provide Engineering/Tier III troubleshooting and sustainment across UC video infrastructure , spanning legacy platforms (Cisco VCS/Expressway, Poly/Cisco endpoints) and modern solutions (Pexip Infinity, Microsoft Teams CVI).

- Develop System Capacity Expansion Plans; conduct quality assurance and performance checks across UC telecommunications design, video networking elements, and end-user peripherals.

- Ensure all architecture and designs comply with current government directives and guidelines, especially for classified networks, providing continuing security engineering support.

- Offer strategic logistics support and recommend specific configurations to enhance system functionality.

- Implement and validate final hardware and software configurations while maintaining up-to-date System Engineering and Functional Requirements documentation.

- Provide expert analysis, design, integration, and testing support for Unified Communication solutions.

- Perform performance and quality assurance checks on UC telecommunications design, voice and video networking elements, and end-user peripherals.

- Design solutions for various cloud deployment models (IaaS, PaaS, SaaS) optimizing the essential characteristics of cloud computing.

- Analyze customer requirements, assess design/technology alternatives, and facilitate discussions with stakeholders to propose and implement effective solutions.

Requirements:

- Education: BA/BS in Computer Science or related field

- Experience: 10+ years of related experience

- Technical skills:

- UC Networking Expertise: 3+ years in real‑time communications (VoIP/Video) with deep SIP/SDP/RTP/SRTP/TLS/WebRTC expertise

- Video Infrastructure: Hands-on experience with Cisco VCS Control / Expressway (C & E series) , SIP/H.323 interworking, traversal zone configuration, and signaling troubleshooting. Experience with Poly and Cisco hardware video endpoints

- IT Principles and Techniques: Strong grasp of information technology principles, methods, and associated hardware/software.

- Domain Expertise: Experience with integration and/or management of classified voice and video systems.

- Support Skills: Extensive support knowledge in DNS, certificates/PKI, TLS, signaling/media, AD, PowerShell, APIs/REST, Network/FW, and h.323/SIP.

- Advanced Troubleshooting: Proven troubleshooting across signaling/media layers using call traces and packet captures (Wireshark/tcpdump).

- Customer Service: Superior customer service skills, essential for engaging with diverse stakeholder groups and ensuring system reliability and user satisfaction.

- Security clearance level: Active Secret Clearance

Benefits:

- Comprehensive benefits and wellness packages

- 401K with company match

- Competitive pay and paid time off

- Award-winning culture of innovation and a military-friendly workplace

## Skills

### Required
- Cloud Deployment
- Cloud Engineering
- Unified Communications
- Infrastructure as a Service (IaaS)
- SIP
- SDP
- RTP
- SRTP
- TLS
- WebRTC
- Cisco VCS Control
- Expressway
- Poly
- Cisco hardware video endpoints
- IT Principles
- DNS
- certificates/PKI
- PowerShell
- APIs/REST
- Network/FW
- h.323/SIP
- Wireshark/tcpdump

### Nice to have
- Senior Microsoft Azure Certifications
- SBC training/cert
- Pexip
- Azure
- O365 integration
- Vidyo infrastructure
- Microsoft Teams interoperability

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Source: [Apply at gdit.wd5.myworkdayjobs.com](https://gdit.wd5.myworkdayjobs.com/en-US/External_Career_Site/job/USA-MD-Fort-Meade/Unified-Communication-SME-Engineer_RQ230016-1?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)