• Systems Engineer, Messaging

    Marriott (Bethesda, MD)
    …service hardening and incident response. + 2+ years integrating on-prem and cloud services in a large, global enterprise. **Other Attributes and Preferred ... plus. + Certifications such as Microsoft 365 Certified: Messaging Administrator Associate; Cisco Secure Email training/certifications preferred. + Strong… more
    Marriott (09/24/25)
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  • Splunk Security Engineer

    Leidos (Suitland, MD)
    …+ Support operational readiness, compliance, and proactive detection technologies across endpoint, cloud , network , and email infrastructures + Apply patches and ... **IAT Level III certification** (eg, CISSP) + Splunk Certified Enterprise Security Administrator + Proficiency in standard DoD Security and Operational products such… more
    Leidos (09/20/25)
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  • Senior System Integrator Engineer (TS/SCI)

    Vexterra Group (Bethesda, MD)
    …VA or Bethesda, MD office: You will work closely with other infrastructure and network engineers, system engineers and O&M team members on the following key tasks: ... infrastructure to include physical and virtualized environments * Set up administrator and service accounts, maintain system documentation, tune system performance,… more
    Vexterra Group (07/15/25)
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