ISYS Technologies, Inc.

  • Senior VoIP Network Engineer

    Job Locations US-VA-Arlington
    Job ID
  • Minimum Clearance Required



    Functional Responsibilities:


    ISYS Technologies is hiring a Sr VoIP Network Engineer. The successful candidate will be responsible for the design, implementation, and support of voice infrastructure across the North American and World-wide network across 80+ countries. Overall delivery of solutions is based on Cisco's Unified Communications technology, with a significant emphasis on voice. An ideal candidate would possess a solid background in the design and implementation of VoIP networks utilizing Cisco Unified Communications Platform consisting of Call Manager, Unity, and Call Center applications. Candidate would have worked on fairly large-scale VoIP networks/rollouts in the past.




    • Secret


    Job Duties:

    • Ability to lead and manage voice projects through all phases including initial needs analysis, formulating designs and solutions, implementation and documentation
    • Design and implement highly scalable VoIP networks to provide connectivity to over 100 sites worldwide
    • Maintain current and thorough knowledge of Cisco technologies, with particular emphasis on Unified Communications (Call Manager, Unity, IPCC Express, Meeting Place, etc.)
    • Maintain current and thorough knowledge of relevant complimentary technologies to Cisco (e.g. network based faxing, video, call recording, etc.)
    • Conduct network and voice/readiness assessments
    • Work with to evaluate network health and capacity planning
    • Implement overall solutions including development of design documents (dial plan, testing plan, etc.) Implement connectivity to legacy customer systems, particularly legacy TDM PBX systems (Avaya, Nortel, etc.)
    • Lead projects related to VoIP infrastructure and technologies
    • Participate in all phases of the project including initial needs analysis, formulating designs and solutions, implementation and documentation
    • Provide technical details about production offerings to employees helping to grow their knowledge and understanding
    • Assist in the development and delivery of training sessions to peers and employees
    • Share knowledge and experience to enhance the technical capabilities of the voice, data, and telecom teams


    Experience Requirements:


    • Minimum BA/BS Computer Science or related technical experience required
    • Professional level Cisco Certifications in Voice, Routing & Switching preferred; CCVP, CCNP or CCIE level certification
    • 5+ or more years designing, delivering Cisco convergence solutions, esp. IP Telephony
    • Must have strong Cisco VoIP Implementation experience with CallManager and Unity applications
    • In-depth expertise in VoIP protocols (SIP, ILBC, RTP, TFTP and related Protocols) and their performance from the edge thru the core of the network.
    • In-depth expertise in Routing and Switching protocols. Familiarity with multiple phone switches, phone mail, key systems, and associated software. Familiarity of call center environments, both inbound and outbound supporting remote locations
    • Experience with Microsoft OCS functionality
    • System design and layout of projects for networks including Visio diagram
    • Must be proficient in performing pre-site infrastructure analysis
    • Minimal travel required
    • Clear understanding of network functionality and network design as pertains to large segmented networks
    • Team player with ability to coordinate efforts amongst voice team members
    • Network Routing - 8+ years
    • Network Switching - 8+ years
    • Dynamic routing protocols -5+ years
    • Team leadership - 2+ years
    • Trusted Internet Connections (TIC) - 2+ years
    • Experience using Microsoft Office
    • Excellent verbal and written communication skills




    Desired Experience:


    • Enterprise Wireless - 5+ years
    • Cisco WAN DMVPN - 3+ years
    • Cisco devices - 7+ years
    • Presentation skills - 2+ years







    Essential Requirements - Physical Demands: The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job with or without reasonable accommodation.

    While performing the duties of this job, the employee will regularly sit, walk, stand and climb stairs and steps. May require walking long distance from parking to work station. Occasionally, movement that requires twisting at the neck and/or trunk more than the average person, squatting/ stooping/kneeling, reaching above the head, and forward motion will be required. The employee will continuously be required to repeat the same hand, arm, or finger motion many times. Manual and finger dexterity are essential to this position. Specific vision abilities required by this job include close, distance, depth perception and telling differences among colors. The employee must be able to communicate through speech with clients and public. Hearing requirements include conversation in both quiet and noisy environments. Lifting may require floor to waist, waist to shoulder, or shoulder to overhead movement of up to 20 pounds. This position demands tolerance for various levels of mental stress.


    ISYS Technologies is an Engineering and Information Technology Company focused on providing Services to the Federal and State Government. ISYS offers a competitive compensation program and comprehensive benefits package to our employees including Health/Dental/Vision/PTO and more. ISYS Technologies is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or status as a protected veteran.


    US Citizenship is required.


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