• Senior Systems Engineer - (Onsite)

    RTX Corporation (Colorado Springs, CO)
    …with network traffic analysis, diagnostic and troubleshooting skills and firewall knowledge in Juniper, Fortinet, and Palo Alto. + Experience and knowledge ... Immigration Status Requirements: Active and transferable US government issued security clearance is required prior to start date.​ US...evolving global market. We are seeking a Senior Systems Engineer to work onsite at Colorado Springs, CO. This… more
    RTX Corporation (09/05/25)
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  • Senior Systems Engineer - Cybersecurity

    M. C. Dean (Vienna, VA)
    …MS Azure and cloud services and technologies, including compute, database, storage, network virtualization, and security services; + Working understanding of ... Overview Security is critical to MC Dean's IT solutions...infrastructure. As part of the team, the **Senior Systems Engineer ** 's responsibilities will include (but will not be… more
    M. C. Dean (08/27/25)
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  • Production Operations Systems Engineer

    SAIC (AZ)
    …to troubleshoot and optimize system performance and reliability. + Understanding of network protocols, firewall configurations, and VPN setup. + Experience with ... network monitoring and diagnostic tools. + Knowledge of security best practices for production systems. + Experience implementing security measures,… more
    SAIC (11/21/25)
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  • Software Developer 3 - OCI Networking, DDoS…

    Oracle (Jackson, MS)
    …Software Engineer to join our Networking organization, specializing in DDoS and Network Security . In this role, you will help design, build, and improve ... and enhance L4/L7 protection services-including DDoS mitigation and Web Application Firewall (WAF)-to defend against network and application-layer threats. +… more
    Oracle (11/25/25)
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  • Senior End User Engineer

    Fiserv (Omaha, NE)
    …TCP/IP and firewall policies and designs. + Familiarity with IT security and compliance best practices. Knowledge of network infrastructure, security ... experience using ServiceNow. + Strong technical knowledge across various IT domains ( network , security , servers, cloud). + Proficient understanding of ports and… more
    Fiserv (11/15/25)
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  • Senior BizOps Engineer

    Mastercard (O'Fallon, MO)
    …businesses and governments realize their greatest potential._ **Title and Summary** Senior BizOps Engineer We are looking for a BizOps Engineer /SRE with a strong ... will bring expertise in certificate and key management, payment network protocols like ISO8583/ISO20022, and application/production Support. This role involves… more
    Mastercard (11/15/25)
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  • Platform/Infrastructure Engineer

    Nightwing (Sterling, VA)
    …of Linux and/or Windows Server operating systems. + Networking: Knowledge of network protocols, routing, and firewall configurations. + Scripting: Proficiency in ... community, defense, civil, and commercial markets. Job Title: Platform/Infrastructure Engineer Location: Sterling, VA Clearance: TS/SCI Poly **This position is… more
    Nightwing (09/26/25)
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  • Senior Azure DevOps Engineer

    EPAM Systems (San Jose, CA)
    …etc.) + Familiarity with networking principles and protocols such as IP subnetting, Network Security Groups, routing, Azure Firewall , ExpressRoute, load ... In your role as **Azure Platform Engineer ** , you will help and guide the build of ( network ) solutions to enhance the availability, performance, and stability of… more
    EPAM Systems (11/19/25)
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  • Senior Technical Support Engineer , US…

    Palo Alto Networks (Plano, TX)
    …priorities, proactively driving best practices to help continuously improve their security posture. You will regularly participate in technical discussions with ... of complex issues and providing tailored solutions to optimize their security infrastructure + Effectively communicate technical solutions to technical and executive… more
    Palo Alto Networks (11/05/25)
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  • Information Systems Engineer II - Onsite

    RTX Corporation (Tucson, AZ)
    … for threats and/or malware; collect data from a variety of network security tools, including intrusion detection system alerts, firewall and network ... Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (11/08/25)
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