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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1mo
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Linux System Administrator (Associate)
Seal Beach, California, United States
$79k-$133k/yr OnsiteFull Time
Active Top Secret/SCI or recent Tier 5 (T5); experience with Linux (RHEL), AWS, system provisioning/patching, user administration; ability to obtain Security+ / IAT Level 2; U.S. person required; willingness to relocate if needed.
Red Hat, RHEL, AWS, Linux, Agile, Joint Special Access Program Implementation Guide (JSIG), Risk Management Framework (RMF)
3w
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SA054 Junior Linux System Administrator
Greenbelt, Maryland, United States
OnsiteFull Time
Hands-on hardware experience, ability to lift 50 lbs, perform RMA, use technician tools, troubleshoot hardware, work with minimal supervision, US citizenship required, and ability to obtain/maintain a NASA Tier 1 Investigation.
Ubuntu, CentOS
2mo
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Junior System Administrator
Fort Leavenworth, Kansas, United States
OnsiteFull Time
1+ YOEEntry-level MCIS administrator tasks: install, maintain, and troubleshoot Windows/Linux servers, virtualization, networking; apply DoD security policies; provide Tier-III support; assist with training environments and system hardening.
Windows, Linux, VMware, Hyper-V, VLANs, VPNs, Firewalls, Networking, Storage, Security
1mo
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Linux System Administrator (Associate)
Seal Beach, California, United States
$79k-$133k/yr OnsiteFull Time
Active U.S. Top Secret/TS-SCI clearance, U.S. citizenship, experience with Linux (RHEL) and AWS, knowledge of JSIG and RMF, ability to obtain Security+/IAT Level 2, willingness to relocate if needed.
Red Hat Enterprise Linux (RHEL), Linux, AWS, JSIG, RMF, Agile
1w
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IT Linux System Administrator 2
Centennial or Cape Canaveral or Decatur or Vandenberg AFB
$82k-$136k/yr OnsiteFull Time
2+ YOEBachelor in STEM or equivalent, minimum 2 years related experience, foundational Linux administration (RHEL/Rocky/AlmaLinux/Ubuntu), ability to obtain DoD TS/SCI, US citizenship required, basic networking and troubleshooting skills.
RHEL, Rocky, AlmaLinux, Ubuntu, Bash, Python, Ansible
1d
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Linux System Administrator
San Jose, California, United States
$7k/mo OnsiteContract
2+ YOE2+ years Linux system administration experience, strong VMware skills, proficiency with storage and automation tools, ability to perform rack-and-stack hardware work, and required DoD 8570/IAT Level II or equivalent (CompTIA Security+).
VMware, KVM, Netapp, Dell/EMC, PureStorage, ansible, Foreman, GLPI, Cisco, Mellanox, FlexLM, Red Hat Linux, Centos, Ubuntu, Windows 2008, Apache, Jirra, Git, LDAP, Jenkins
2w
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Junior System Administrator
Lexington Park, Maryland, United States
$80k-$105k/yr OnsiteFull Time
1+ YOEActive Secret clearance and U.S. citizenship required, OS certification (Windows or Linux), CompTIA Security+, 1+ year system administration experience (VMware, Windows/Linux, RMF/STIG experience preferred), virtualization and networking skills.
VMware, ESXi, vSphere, Cisco, SAN, Microsoft Windows Server, Linux, RMF, STIG, Active Directory, Containers, Agile
3d
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Linux System Administrator
McLeansville, North Carolina, United States
$60k-$180k/yr OnsiteFull Time
2+ YOEActive Secret clearance and U.S. citizenship required; Bachelor’s degree or equivalent plus 2 years relevant experience; Linux administration, network/Cisco experience, vulnerability scanning, hardening, RMF/STIGs familiarity, technical writing.
Cisco, Risk Management Framework (RMF), STIGs
3d
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Linux Systems Administrator
Clearfield, Utah, United States
$80k-$128k/yr OnsiteFull Time
2+ YOE2+ years experience (with Bachelor's) or 6 years with HS, Linux/RHEL administration, shell scripting, SQL and database maintenance, motivated to obtain CISSP, US citizen and onsite 5 days/week.
Linux, Red Hat Enterprise Linux (RHEL), shell scripting, SQL, Git, Oracle Database, SAP Business Objects, Apache Tomcat, Apache HTTP Server, NTP, IPSEC, Postfix, Dovecot, Java, LDAP
2mo
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RedHat Linux System Administrator (Levels I - IV)
Annapolis Junction, Maryland, United States
$120k-$185k/yr OnsiteFull Time
1+ YOEActive TS/SCI with Poly, RHCE, high school or GED, 1+ years IT experience with 1+ years RHEL administration (levels vary), ability to configure, operate, and maintain Red Hat Enterprise Linux systems.
Red Hat Enterprise Linux
4w
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Linux Administrator II
Westminster, Colorado, United States
$33-$39/hr OnsiteFull Time
2+ YOEBachelor's degree in a technical discipline with 2+ years Linux systems administration; networking fundamentals (TCP/IP, DNS, DHCP, VLANs), cybersecurity best practices, troubleshooting, operational readiness, and strong cross-team communication.
Linux, TCP/IP, DNS, DHCP, VLANs, firewalls
2d
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Sr. Linux System Administrator- Will sponsor a clearance
Woburn, Massachusetts, United States
$69k-$131k/yr OnsiteFull Time
2+ YOEAbility to obtain U.S. secret clearance, bachelor’s plus 2+ years relevant experience, Red Hat Enterprise Linux administration in heterogeneous Windows environments, troubleshooting, and meeting DoDD 8140/8570 certification requirements (CompTIA Security+ CE or equivalent).
Red Hat Enterprise Linux, Microsoft Windows, VMware vCenter, vSphere, ESX, Ansible
2w
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Junior System Administrator
Colchester, Connecticut, United States
$65k-$75k/yr OnsiteFull Time
2+ YOE2+ years IT experience; administer Microsoft 365, Windows, Linux, Okta, endpoint security; troubleshooting, imaging, patching, backup, and asset management skills required.
Microsoft 365, Windows, Linux, Exchange Online, Teams, SharePoint, OneDrive, Okta, Carbon Black EDR, Mimecast, Entra ID
2w
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System Administrator
Patuxent River, Maryland, United States
$80k-$120k/yr OnsiteFull Time
1+ YOEActive DoD Secret clearance (able to obtain Top Secret interim), RMF/STIG experience, 1+ years system administration (junior) or 3+ years (journeyman), Linux and virtual networking familiarity, VMware, Active Directory, containers, backups, and technical troubleshooting.
VMware, Virtual Networking, Containers, Active Directory, Linux, Risk Management Framework (RMF), Security Technical Implementation Guide (STIG), Agile
1mo
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System Administrator (Junior-Senior)
Fort Meade, Maryland, United States
$100k-$200k/yr OnsiteFull Time
2+ YOETS/SCI with poly required, active Sec+ certification, 2+ years supporting Windows/Linux/Unix, 2+ years with Docker or Kubernetes, experience with JWICs/IC networks, proficiency with network devices, strong interpersonal skills.
Windows, Linux, Unix, Docker, Kubernetes, JWICs, repeaters, bridges, routers, gateways, hubs
1mo
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Linux Systems Administrator
Chantilly, Virginia, United States
OnsiteFull Time
2+ YOEHS/GED with 2+ years Linux systems experience in large, complex environments; experience with Centrify, LDAP, Active Directory, shell scripting; Ansible preferred; strong documentation and communication; active TS/SCI with polygraph required.
Linux, Centrify, LDAP, Active Directory, shell scripting, Ansible
1mo
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System Administrator
Santa Rosa, California, United States
$92k-$126k/yr HybridFull Time
2+ YOE2+ years Linux systems administration, strong Linux (Ubuntu) and working knowledge of Microsoft Windows, scripting with Python or Bash, experience with Terraform and cloud platforms (GCP/AWS/OCI), operational SQL experience, knowledge of internet technologies; must live within ~30 miles of Santa Rosa and participate in overnight on-call rotation (1...
GCP, Akamai, Linux, Ubuntu, Microsoft Windows, Python, Bash, Terraform, Docker, Cloud Build, Cloud Run, Cloud SQL, BigQuery, MySQL, PostgreSQL, NetApp, CIFS, NFS, S3-compatible object stores, Ansible, Puppet, Chef, Cloud Armor, Cloudflare, CloudFront, AWS, OCI, Proxmox, REST APIs, TCP/IP, DNS, CDN, HTTPS/TLS, AI-assisted tooling, LLM-based assistants
3w
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Senior Linux Systems Administrator
Princeton, New Jersey, United States
OnsiteFull Time
0+ YOEBS/MS/PhD in CS or related with corresponding years of experience; proficiency in Linux administration, scripting (shell, bash, tcsh, Perl, Python, Ruby), backup systems, configuration management (Ansible/Chef/Puppet/SaltStack), VPN/SSH, database clusters, smart-card auth, and U.S. Citizenship for Public Trust.
Linux, Red Hat Enterprise Linux (RHEL), AlmaLinux OS, CentOS, Oracle Linux, Rocky Linux, shell, bash, tcsh, Perl, Python, Ruby, Amanda, Bacula, Backup Exec, NetBackup, ReaR, Ansible, Chef, Puppet, SaltStack, VPN, SSH, Percona XtraDB, MySQL, BeyondTrust, Centrify, SSSD
2mo
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System Administrator
Annapolis Junction, Maryland, United States
OnsiteFull Time
0+ YOEExperience administering Linux systems; scripting/automation (Bash, Python, Perl); AWS; KVM; Ansible/SALT; FreeIPA; DoD/IC security familiarity.
Linux, KVM, Ansible, SALT, Bash, Perl, Python, AWS, FreeIPA, VMware, Virtualization
2w
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System Administrator (Journeyman)
United States
$66k-$106k/yr RemoteFull Time
1+ YOERequires active Top Secret clearance; experience administering AWS GovCloud and on-prem systems, IaC (Terraform/Ansible), monitoring (CloudWatch/Splunk/ELK), Windows/Linux administration, backup/DR, IAM, and scripting (PowerShell/Python/Bash).
AWS GovCloud, IaC, CloudWatch, Splunk, ELK, Microsoft Active Directory, Microsoft Azure AD, Microsoft Entra ID, Microsoft Group Policy, Microsoft SCCM, Microsoft WSUS, VMware vSphere, Nutanix, Hyper-V, RHEL, CentOS, Ubuntu, AWS Systems Manager, Terraform, Ansible, IAM, KMS, DNS, DHCP, LDAP, BGP, OSPF, VLAN, SD‑WAN, SAN, NAS, Veeam, N2WS, STIG, SCAP, ACAS, Nessus, PKI, CAC, PowerShell, Python, Bash, CMDB
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