Description As a Senior VoIP Engineer, the individual will oversee and manage all components of the Cisco Unified Communication Manager cluster. In this role, the Engineer will monitor and control the performance and status of voice and video resources across multiple enclaves and locations utilizing software and hardware tools. In addition, the individual will work to ensure all voice applicable STIGs and vulnerabilities are resolved or mitigated in a timely manner. This position requires 100% onsite support. Responsibilities: -Performs testing, provision, operations and emergency responses for voice network operations -Designs, configures, and installs VoIP hardware/software replacements and upgrades -Develops and maintains all VoIP documentation (drawings, cut sheets, configurations, and deployment plans) -Identifies and diagnoses problems and factors affecting voice services -Provides day-to-day subject matter expert support for RKB tenant agencies -Troubleshoots voice related issues and outages, which may occur during non-core hours -Works with vendors in support of the ITCSU -Performs preventative maintenance services on all devices within the VoIP area of responsibility -Maintains a current understanding of emerging technologies and trends in voice and video services -Performs other tasks as required by OSC and the Government contracting office Required Qualifications/Education and Experience: -Must have and maintain a Secret personnel clearance and must be eligible for a TS/SCI -High School diploma or equivalent -Five (5) or more years of experience designing, building, and/or maintaining communications systems with minimum of three (3) years of experience with CISCO Unified Communications Manager (CUCM) Version 11.0 or newer -Cisco Certified Network Professional (CCNP) Collaboration or successful completion of the CLCOR exam -Prior experience with Cisco Unity, Cisco Presences, Cisco Emergency Responder -Knowledge of Cisco UCCX -Prior experience with dynamic and static IPv4 routing and integrating with an external SIP provider -Proficient with SIP, SCCP, MGCP, DSN, PSTN, and H.323 systems and devices -Must be DoD 8570 certified at the IAT-II / IAM-II level. Please refer to the website: https://public.cyber.mil/cw/cwmp/dod-approved-8570-baseline-certifications/ Preferred Qualifications/Education and Experience: - Bachelor’s degree Skills Voip, Cisco call manager, Cisco voip, Cisco voice, Unified communications, Uccx Top Skills Details Voip,Cisco call manager,Cisco voip,Cisco voice,Unified communications,Uccx Experience Level Expert Level Pay and Benefits The pay range for this position is $72.11 - $86.53/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave) Workplace Type This is a fully onsite position in Quantico,VA. Application Deadline This position is anticipated to close on Aug 29, 2025. h4>About TEKsystems: We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company. The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. About TEKsystems and TEKsystems Global Services We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.