• Network Operations Center (NOC) Tier

    CACI International (Denver, CO)
    Network Operations Center (NOC) Tier 3 Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph ... ongoing basis. Team CACI has an exciting and challenging opportunity available for a Network Operations Center (NOC) Tier 3 supporting an Intelligence… more
    CACI International (10/25/25)
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  • Senior Network Operations Engineer…

    V2X (Colorado Springs, CO)
    …most complex challenges with integrity, respect, responsibility, and professionalism. As a Senior Network Operations Engineer ( Tier 3 ), you will provide ... security, and performance of the enterprise. Operating in a Tier 3 capacity, the Senior Network...and account administration. + Provides subject matter expertise for LAN , WAN, firewalls, and other network technologies.… more
    V2X (10/14/25)
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  • Network Engineer Tier 3

    CACI International (Colorado Springs, CO)
    Network Engineer Tier 3 ... Engineer to support an Intelligence Community customer's diverse network infrastructure, including CAN, LAN , CORE, and ... and leadership to junior network engineers. Develop and implement network support processes for CAN/ LAN /WAN, ensuring compliance with relevant standards.… more
    CACI International (10/25/25)
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  • Tier 3 O&M Network Engineer

    Leidos (Colorado Springs, CO)
    …approach to meeting user requirements. + Perform long term O&M activities to include tier 3 troubleshooting and problem resolution. + Utilize complex network ... Modernization Sector at Leidos is seeking a **Sr.** **O&M Network Engineer** various wide area networks (WANs) and local...and implements methodologies for analysis, testing, and support of LAN and WAN networks. + Diagnose hardware and software… more
    Leidos (11/22/25)
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  • Journeyman Network Operations Engineer…

    V2X (Aurora, CO)
    …Requirement: + This position requires an active Department of Defense (DoD) Secret ( Tier 3 ) level clearance. Skills & Technology Used: + Demonstrates excellent ... complex challenges with integrity, respect, responsibility, and professionalism. As a Journeyman Network Operations Engineer ( Tier 2), you will provide mid-level… more
    V2X (10/14/25)
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  • Tier 2 Network Technician

    Leidos (Colorado Springs, CO)
    …tree, MAC addresses, VLANs, port security, applying thin and thick configs). + Layer 3 network experience (subnetting, familiar with protocols such as OSPF, BGP, ... Modernization Sector at Leidos** **has an opening for a** Tier II Network Technicianto support global enterprise...will support the installation and maintenance of the client LAN /WAN devices. + Respond to and resolve incidents, demonstrate… more
    Leidos (11/15/25)
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  • Network Engineer

    Jacobs (Denver, CO)
    …a Jacobs Company, has an opening for a Network Engineer (Campus Area Network /Local Area Network (CAN/ LAN )) to support our government customer's global ... enterprise networks. The CAN/ LAN service network architecture provides solutions for...(IAT) Level 2 (Security+ CE) * Experience specific to network engineering to include Tier III or… more
    Jacobs (09/12/25)
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  • Journeyman Wireless Engineer

    V2X (Aurora, CO)
    …Clearance Requirement: + This position requires an active Department of Defense (DoD) Secret ( Tier 3 ) level clearance. Skills & Technology Used: + Proficient in ... streamline logistics, and enhance readiness. Aligned around a shared purpose, our $ 3 .9B company and 16,000 people work alongside our clients, here and abroad,… more
    V2X (10/17/25)
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  • Lead IT Infrastructure Engineer

    Lumen (Denver, CO)
    …any US-based location. **The Main Responsibilities** + Implement and maintain enterprise network infrastructures, including LAN , WAN, and WLAN ensuring optimal ... trust and transparency. People power progress. We're looking for top- tier talent and offer the flexibility you need to...firewalls, IDS/IPS, and DDoS mitigation strategies for at least 3 years. + Network Load-Balancer: Understanding of… more
    Lumen (11/06/25)
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  • Manager, Service Delivery Engineer

    Sumitomo Pharma (Denver, CO)
    …opportunity, with the ability to work some days remote.. **Job Duties and Responsibilities** + Provide Tier 2 and Tier 3 support to our users via **onsite,** ... and manage legacy POTS lines for reliable telephony services. + Collaborate with network teams to ensure QoS for voice traffic, perform number porting, and maintain… more
    Sumitomo Pharma (11/15/25)
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