2mo
Save
Mark Applied
Hide
Linux Systems Administrator
Frederick, Maryland, United States
$90k-$100k/yr OnsiteFull Time
5+ YOE5+ years Linux system administration; Active Secret clearance; Security+ or equivalent; virtualization; AD; networking; on-site support.
Linux, VMware, KVM, STIG, Trellix/McAfee, Veeam, Dell Isilon, OneFS, ECS, Unity, Data Domain, Bright Cluster Manager, SLURM, PBS, Lustre, GPFS, HPC tools, iDRAC, NIPR, RSN
3mo
Save
Mark Applied
Hide
Systems Administrator
Chantilly or Herndon or McLean
OnsiteFull Time
5+ YOETS/SCI with poly; 5+ years in systems administration; Windows/Linux servers; AD/DNS/DHCP/GP; virtualization; networking basics; scripting.
Windows, Linux, Active Directory, DNS, DHCP, Group Policy, VMware, Hyper-V, TCP/IP, Firewalls, VPNs, PowerShell, Bash, Python, Monitoring tools, Log management
3w
Save
Mark Applied
Hide
Sr. Systems Administrator
Rockville, Maryland, United States
$105k-$115k/yr OnsiteFull Time
3+ YOE3+ years hybrid IT/systems engineering experience; Microsoft cloud and virtualization experience; Bachelor's degree or 5+ years equivalent; strong troubleshooting, documentation, and communication skills.
Microsoft Active Directory, Entra ID, SAML, OIDC, Cisco Duo, Microsoft 365, Azure, VMware, Proxmox, Cisco Meraki, Microsoft Intune, PowerShell, Python, Ansible, ISO 27001, NIST CSF, SOX ITGC
2w
Save
Mark Applied
Hide
DevOps Engineer 673
Herndon or St. Louis
OnsiteFull Time
3+ YOEActive security clearance with polygraph,3+ years DevOps experience,Python/MATLAB or similar scripting,Amazon Web Services (AWS) experience; experience with automation and virtualization preferred.
Python, MATLAB, Amazon Web Services (AWS), VMware, Bash, PowerShell, Terraform, CloudFormation, Ansible, Jenkins, Active Directory, DNS, DHCP
19h
Save
Mark Applied
Hide
Cyber Penetration Tester
Herndon, Virginia, United States
OnsiteFull Time
Active TS/SCI with Polygraph and demonstrated experience in penetration testing, network security analysis, security architecture, and adversarial hands-on testing across Windows, Linux, and virtual platforms.
Windows, Linux, hypervisors, network management tools
1w
Save
Mark Applied
Hide
System Administrator, Senior
Winchester, Virginia, United States
$62k-$141k/yr OnsiteFull Time
3+ YOE3+ years system administration with on-premise and cloud (AWS/Azure/GCP), Windows/Linux, virtualization, scripting (PowerShell/Bash/Python), backup/disaster recovery, and Top Secret clearance.
AWS, Azure, Google Cloud, Windows, Linux, VMware, Hyper-V, PowerShell, Bash, Python, Docker, Kubernetes
1w
Save
Mark Applied
Hide
Senior Infrastructure Security Engineer
Southlake or Ashburn or Cary or Branchburg
$101k-$194k/yr HybridFull Time
4+ YOE4+ years relevant experience or bachelor\u0002s degree, deep networking and network security knowledge, Linux experience, virtualization and cloud familiarity, leadership and cross-team collaboration skills.
Linux, VMware, OpenStack, Kubernetes, Splunk, SIEM
5d
Save
Mark Applied
Hide
Penetration Tester
Herndon, Virginia, United States
OnsiteFull Time
Active polygraph required. Experienced in penetration testing, adversarial tactics, network and system exploitation across Linux, Windows, and virtual platforms; risk analysis and mitigation; communicating technical results.
Linux, Windows, hypervisors
5d
Save
Mark Applied
Hide
Classified Systems Administrator and ISSO
Herndon, Virginia, United States
$104k-$218k/yr OnsiteFull Time
7+ YOEActive TS/SCI with CI Polygraph, CompTIA Security+, 7+ years systems engineering/administration experience, Windows Server and virtualization expertise, vulnerability remediation, AD and enterprise services administration.
Microsoft Windows Server, VMware, Hyper-V, Nutanix, Microsoft Exchange, Microsoft SQL Server, Skype for Business, Jira, Confluence, Nessus, Pure Storage, Dell PowerVault, Synology, RSA, CyberArk, Active Directory, DNS, DHCP, Group Policy, Nakivo, Commvault, McAfee, Trellix, Microsoft MECM/SCCM
2w
Save
Mark Applied
Hide
DevOps Engineer (Top Secret with agreement to obtain CI Poly)
Herndon or King of Prussia
OnsiteFull Time
Active Top Secret/SCI clearance with CI poly eligibility; hands-on Linux/Bash, Kubernetes, Python or Java, cloud and virtualization, DevOps automation, PKI/SSL, JSON/XML, and documentation experience.
Linux, Bash, Kubernetes, Python, Java, VMware, AWS, Azure, Proxmox, Google Cloud Platform, Ansible, Jenkins, CloudFormation, PKI, SSL/TLS, JSON, XML, FTP, SFTP, TFTP, HTTP, HTTPS, QUIC, LDAP, Active Directory, JIRA, GitLab, SQL, Apache ActiveMQ
3mo
Save
Mark Applied
Hide
(USA) Principal, Software Engineer, Information Security
Bentonville or Sunnyvale or Bellevue or Herndon
$110k-$264k/yr OnsiteFull Time
10+ YOEExpertise in enterprise Active Directory engineering, automation-first infrastructure, IaC, AD security and high-availability; PowerShell/Python/Go scripting; VMware/Hyper-V virtualization; strong communication and leadership.
Active Directory, LDAP, Kerberos, VMware, Hyper-V, PowerShell, Python, Go
1mo
Save
Mark Applied
Hide
Senior Systems Engineer
Rockville, Maryland, United States
$157k-$186k/yr OnsiteFull Time
12+ YOEBachelor's in CS/IT/Engineering, 12 years systems engineering experience, deep knowledge of systems architecture, cloud (AWS/Azure), virtualization, networking, Microsoft 365, strong problem-solving and communication skills.
AWS, Azure, Microsoft 365, Wi-Fi, VLANs, Routing, Switching, Network Protocols, Servers, Virtual Servers, Storage Systems, Routers, Switches, Firewalls, Windows Security
6d
Save
Mark Applied
Hide
Training Coordinator/Admin Support
Sterling, Virginia, United States
$99k-$206k/yr OnsiteFull Time
16+ YOEExtensive network engineering and virtualization experience, instructor experience preferred, TS/SCI with polygraph required on day one, 16+ years experience, proficiency with CISCO, VMware, Nutanix, and Microsoft Office Suite.
CISCO, VMware, Nutanix, Microsoft Office Suite
3w
Save
Mark Applied
Hide
System Engineer I
Frederick, Maryland, United States
$50/hr OnsiteFull Time
4+ YOE4+ years network management experience in large-scale infrastructures; MCSE/MCITP or VMWare VCP (or equivalent experience); experience with SAN/NAS, SQL, virtualization, Exchange, Active Directory, scripting (VBS/PowerShell).
PowerShell, VBS, VMWare, Hyper-v, Microsoft SCCM, Microsoft Systems Center Operation Manager, Microsoft Exchange, Microsoft SharePoint, Microsoft Lync, Active Directory, Microsoft Server, SQL, OST, NDMP, Storage Area Networks, NAS, TCP/IP, Ethernet, ACLs, VLANs, DHCP, DNS, SNMP, SMTP, iSCSI
1mo
Save
Mark Applied
Hide
DevOps Engineer Sr
Herndon, Virginia, United States
$105k-$209k/yr OnsiteFull Time
Top Secret/SCI with polygraph required. Experience with Linux/bash, Kubernetes, Python or Java, virtualization/cloud, COTS integration, Ansible/Jenkins/CloudFormation, PKI/SSL, JSON/XML, and strong documentation and communication skills.
Linux, bash, Kubernetes, Python, Java, VMware, AWS, Azure, Proxmox, Google Cloud Platform, Ansible, Jenkins, CloudFormation, PKI, SSL/TLS, JSON, XML, FTP, SFTP, TFTP, HTTP, HTTPS, QUIC, JIRA, GetLab, SQL, Apache ActiveMQ, LDAP, Active Directory
5d
Save
Mark Applied
Hide
Classified Systems Administrator and ISSO
Herndon, Virginia, United States
$104k-$218k/yr OnsiteFull Time
7+ YOEActive Top Secret/SCI with CI polygraph, CompTIA Security+, 7+ years systems engineering/administration, Windows Server, virtualization (VMware/Hyper-V/Nutanix), AD/DNS/DHCP, vulnerability remediation (Nessus).
Microsoft Windows Server, VMware, Hyper-V, Nutanix, Microsoft Exchange, Microsoft SQL Server, Skype for Business, Jira, Confluence, Nessus, Pure Storage, Dell PowerVault, Synology, RSA, CyberArk, Active Directory, DNS, DHCP, Group Policy, Nakivo, Commvault, McAfee, Trellix, MECM, SCCM
1mo
Save
Mark Applied
Hide
Test Automation Engineer
Herndon, Virginia, United States
$86k-$176k/yr OnsiteFull Time
4+ YOEActive Top Secret/SCI clearance, 4+ years in software development/DevSecOps/cyber, experience with virtual machines/VMware, Python and Bash, networking basics, log analysis, documentation, and familiarity with GitLab, Jira, or Confluence.
vSphere, ESXi, VMware, vCenter, Workstation, Python, Bash, C/C++, GitLab, Jira, Confluence, CIDR
3w
Save
Mark Applied
Hide
Sr. Systems Administrator
Rockville, Maryland, United States
$105k-$115k/yr OnsiteFull Time
3+ YOEDesign, implement, and maintain hybrid IT infrastructure, Microsoft cloud services, virtualization, networking, security controls, system integrations, documentation, and operational support; 3+ years relevant experience; bachelor's degree or 5+ years equivalent.
Microsoft Active Directory, Entra ID, SAML, OIDC, Cisco Duo, Microsoft 365, Azure, VMware, Proxmox, Cisco Meraki, Microsoft Intune, PowerShell, Python, Ansible, API, ISO 27001, NIST CSF, SOX ITGC
2w
Save
Mark Applied
Hide
Lead Automation Engineer
Arlington or Herndon or Washington or Arlington
OnsiteFull Time
10+ YOE10+ years technical experience with 4+ years cloud automation/DevSecOps, AWS and Terraform expertise, CI/CD (GitLab), DoD security/STIGs knowledge, container orchestration and virtualization experience, and leadership/mentoring skills.
GitLab, Terraform, AWS, Kubernetes, VMWare, Flux, Packer, Terragrunt, HashiCorp Vault
1mo
Save
Mark Applied
Hide
Journeyman Systems Engineer - United States
Springfield or Herndon or Ashburn
HybridFull Time
7+ YOE7+ years systems engineering experience supporting Windows and Linux enterprise environments, virtualization (Hyper-V/VMware), SCCM, patching, incident response, backup/recovery, and ability to obtain Public Trust; Bachelor's degree or equivalent.
Windows Server, Linux/Unix, Hyper-V, VMware, SCCM