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Tier 3 Windows Engineer II - TS/SCI with Polygraph
Tier 3 Windows Engineer II - TS/SCI with Polygraph-March 2024
Chantilly
Mar 29, 2026
About Tier 3 Windows Engineer II - TS/SCI with Polygraph

  Req ID: RQ166431

  Type of Requisition: Regular

  Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph

  Job Family: Systems Engineering

  Skills:

  Avaya Call Management System,Cisco Unified Communications Manager IM,Cisco Voice over IP,Unified Communications and Collaboration (UC&C)

  Experience:

  10 + years of related experience

  US Citizenship Required:

  Yes

  Job Description:

  Candidates with proven depth creating solutions with Cisco Unified Communications Manager, VoIP, and PBX will be positioned for success in our organization. The selected candidate will design, build and deploy, and administer large scale voice networks. The engineer will provide support to multiple globally dispersed WAN connected sites. Engineers will be responsible for supporting their solutions throughout the IT project lifecycle, to include refining requirements, creating design documentation, creating installation instructions and deployment plans, and providing O&M support. Project assignments will vary based on skill level, and may include engineering geographically dispersed services, integrating services into public, private and hybrid cloud environments, and hardening the solutions to address security and SCAP compliance.

  Responsibilities:

  Designs and defines system architecture for Cisco based voice infrastructure and end-points

  Identifies and resolves technical problems related to the installation, upgrade and daily operations of the customer’s globally dispersed VoIP infrastructure

  Maintain the existing Cisco VoIP environment consisting of Cisco Unified Communications Manager and various models of Cisco and Polycom phones

  Architecting solutions within the Cisco family of products that may include: CUCM, IM and Presence, Unity, Meeting Servers, Expressway, Meeting Management, Jabber client

  Design and migration of existing TDM solutions leveraging Session Border Controller technology

  Develop and document voice SOPs for engineers and Knowledge Base articles for end-users

  Work with voice providers from other Government agencies and commercial partners to ensure seamless call performance

  Reviews completion and implementation of system additions and/or enhancements and makes recommendations to management and/or clients

  Required Skills:

  Experience with Cisco Unified Call Manager / Cisco Meeting Server

  Experience with Cisco Meeting Manager

  Experience with Cisco Jabber

  Experience with Cisco Telepresence Management Suite and Cisco Expressways is desired

  Experience with the configuration of voice end-point hardware

  Experience with PBX technologies is desired

  Experience with Avaya Call Management System would be beneficial, but not required

  Experience with TDM and SBC

  Experience building/managing servers in the AWS (Amazon Web Services) environment is desired

  Experience with managing work tasks via tools such as JIRA and ServiceNow

  System configuration based on security guidelines such as DISA STIGs

  CompTIA Security+ or similar for IAT Level II DoD 8570 certification

  Education: Bachelor's degree in Information Technology or related field

  Required Experience: 10+ years of related experience

  US Citizenship Required

  GDIT IS YOUR PLACE:

  401K with company match

  Comprehensive health and wellness packages

  Internal mobility team dedicated to helping you own your career

  Professional growth opportunities including paid education and certifications

  Cutting-edge technology you can learn from

  We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

  We connect people with the most impactful client missions, creating an unparalleled work experience that allows them to see their impact every day. We create opportunities for our people to lead and learn simultaneously. From securing our nation’s most sensitive systems, to enabling digital transformation and cloud adoption, our people are the ones who make change real.

  GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.

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