System Administrator Level 3 Job at Columbia Technology Partners (Annapolis Junction)

Level 3 Linux Administrator

Ultahost is looking for a skilled Linux System Administrator (L3) to join our te...

Location

Salary:

Not provided

UltaHost

Expiration Date

Until further notice

Requirements

3+ years of experience in Linux server administration (hosting industry preferred)
1–2 years of hands-on experience with Proxmox virtualization
Strong knowledge of web hosting stack: Apache/Nginx, MySQL, PHP, DNS, email servers
Experience with WordPress, SSL setup, domain configuration, and LiteSpeed tuning
Comfortable with command-line tools and common Linux distributions (Ubuntu, CentOS, Debian)
Ability to troubleshoot under pressure and communicate solutions clearly

Job Responsibility

Manage and resolve advanced support tickets related to Linux hosting environments
Troubleshoot and fix issues with WordPress, LiteSpeed, cPanel, and general server performance
Handle Proxmox-related tasks including VPS management, container troubleshooting, and cluster maintenance (1–2 years experience required)
Perform daily tasks such as SSL installations, domain pointing, DNS adjustments, email configuration, and user access controls
Manage server backups, migrations, and system recovery procedures
Ensure ticket response SLAs are met and escalate when needed
Work with other engineers and teams to improve knowledge base and automation processes

What we offer

Work in a high-performance technical team serving a global client base
Remote flexibility and 24/7 team collaboration
Career growth opportunities into infrastructure, DevOps, or cloud roles
Competitive compensation and long-term stability

Fulltime

System Administrator - Mid-Level

Astrion has an exciting opportunity for an SE-3 System Administrator located at ...

Location

United States , Eglin Air Force Base

Salary:

Not provided

Astrion

Expiration Date

Until further notice

Requirements

Bachelor's Degree in a STEM field and 3-10 years of relevant experience
Active DoD SECRET security clearance adjudicated within the past 5 years
Ability to obtain and maintain a DoD Top Secret security clearance
Ability to obtain and maintain Special Access Program (SAP) access as required
U.S. Citizenship is required
Expertise in applying RMF controls and implementation of STIGs and SCAP Benchmarks
Recent experience with Microsoft Windows Operating Systems (i.e. Windows 11), local group policies, and patching and upgrading
Expertise with building Windows systems and troubleshooting IT hardware and software issues
Highly motivated, detailed-oriented, and capable of working tasks efficiently
Ability to thrive in ambiguous environments, self-start with initiative, and bring energy and curiosity to challenges

Job Responsibility

Provide system administrator support to include troubleshooting desktop workstations, replacing or upgrading hardware and software, user account and file permission management
Work with a team to troubleshoot and apply innovative approaches to resolve unusual/complex issues
Ensure compliance with Defense Information System Agency (DISA) guidelines, USAF security updates and cybersecurity policies and procedures on Windows and Linux operating systems
Build and support physical and virtual host environments
Responsible for the functionality and performance of lab hardware and software systems
Perform program scripting in PowerShell to support system automation
Create and manage system user accounts in accordance with policies and directives
Employ local group policy management and file share, system, and account administration
Perform regular Nessus security scanning, system patching, and vulnerability remediation to maintain a high-security posture on offline platform IT and prototype systems
Perform hardware diagnostic testing of offline equipment

What we offer

Competitive salaries
Continuing education assistance
Professional development
Multiple healthcare benefits package options
401K with employer matching
Competitive time off policy along with a federally recognized holiday schedule

Fulltime

Information System Security Manager Level 3

Provide management support for a program, organization, system, or enclave's Inf...

Location

United States , Annapolis Junction

Salary:

Not provided

Columbia Technology Partners

Expiration Date

Until further notice

Requirements

U.S. Citizenship is required for all applicants
All applicants and employees are subject to random drug testing in accordance with Executive Order 12564
Employment is contingent upon successful completion of a security background investigation and polygraph
DOD 8570 compliance with IAM III is required
This position requires an active Security Clearance with appropriate Polygraph
Twelve (12) years of work-related experience in the field of security authorization is required
Experience in the following areas is required: knowledge of current security tools, hardware/software security implementation
communication protocols
or encryption tools and techniques
Familiarity with commercial security products, security authorization techniques, security incident management, and PKI and authorization services

Job Responsibility

Provide management support for a program, organization, system, or enclave's Information Assurance program
Provide management support for proposing, coordinating, implementing, and enforcing Information System Security policies, standards, and methodologies
Manage operational security posture for an Information System or program to ensure Information System Security policies, standards, and procedures are established and followed
Provide management of security aspects of the Information System and perform day-to-day security operations of the system
Assist ISSEs and ISSOs with evaluating security solutions to ensure they meet security requirements for processing classified information
Manage the performance of vulnerability/risk assessment analysis to support security authorization
Provide management support to configuration management (CM) for information system security software, hardware, and firmware
Manage changes to systems and assess the security impact of those changes
Manage the process and preparation of documentation reviews to include System Security Plans (SSPs), Risk Assessment Reports, Certification and Accreditation (C&A) packages, and System Requirements Traceability Matrices (SRTMs)
Support security authorization activities in compliance with NSA/CSS Risk Management Framework (RMF) process and DoD Information Assurance Certification and Accreditation Process (DIACAP)

What we offer

Medical: CTP offers 3 superior plans, bringing our employees both in-network and out-of-network options
Vision + Dental: Both free to you + paid in full by CTP
Retirement: 401k - 6% company contribution
PTO + Leave: A work life balance is extremely important to our team here at CTP, which is why our paid time off plans are so lucrative. Offering customizable leave plans to meet your needs is just one of our many perks! Jury Duty, Bereavement + Military Leave provided
Career Growth: Up to $10,000 provided for approved career-related learning, training, education, and/or tuition
Life and AD&D Insurance/Short-Term & Long-Term Disability: More peace of mind, at zero cost to you
Profit Sharing Bonus: End of year cash gets added to your bottom-line
Referral Bonus Program: Our tiered program provides an incentive with each stage of the hiring process your referral passes. Our bonuses range from $7,000-$20,000, if your referral joins the team

Fulltime

Junior Microsoft System Administrator

INSCOM executes mission command of operational intelligence forces; conducts wor...

Location

United States , Arlington

Salary:

125000.00 - 130000.00 USD / Year

Amentum

Expiration Date

Until further notice

Requirements

Excellent customer service skills
3 years of experience with Windows Server 2016 or greater
3 years of experience Active Directory experience
3 years of experience with Windows desktop versions 10 and 11
3 years of experience with Windows 365 Office
3 years of progressively responsible experience in desktop support and administration, including supporting, troubleshooting, and managing workstations, monitors, VTC, and printers
3 years of experience with imaging operating system installations, installing software, patching software, and troubleshooting software configuration
3 years of experience with MS laptop imaging operating system installations, installing software, patching software, and troubleshooting software configuration
3 years of experience with equipment inventory management and turn in process
2 years of experience with printer support and maintenance

Job Responsibility

Perform installation, configuration, administration and monitoring of end-user IT automation equipment to include baseline imaging, performance optimization, patching, and updating of associated hardware and underlying operating systems
Perform maintenance and functionality checks of two conference rooms to ensure computer, video-teleconference, and voice IT equipment are operational
Submit and track related trouble-tickets while coordinating with external support directorates to restore functionality
Identify, prioritize, track, and resolve end-user automation and information technology hardware and software issues and problems to maintain at least a 99% system availability rate
Provide comprehensive inventory and automation capability matrices of DCD office workspace and associated automation equipment on a monthly basis or as requested
Analyze technical support requests and provide possible technical solutions and courses of action within 10 business days of receipt of request
Conduct testing of automation equipment and end-user applications immediately after configuration changes and software deployments to validate that changes and enhancements do not adversely affect system operation and performance
Respond to customer support requests and contact customers by the end of the business day to confirm requirement receipt and provide an approximate time of completion
Develop and maintain documentation which includes SOPs, TTPs, system architecture guides, and diagrams for all DCD end-user automation equipment and hardware configurations adhering to organizational templates and policies
Notify the Government of any unscheduled system outages within 30 minutes of each occurrence and record the outage to the operations log within four (4) hours

What we offer

Health, dental, and vision insurance
Paid time off and holidays
Retirement benefits (including 401(k) matching)
Educational reimbursement
Parental leave
Employee stock purchase plan
Tax-saving options
Disability and life insurance
Pet insurance

Fulltime

Linux System Administrator - Remote

Our client, a major Canadian enterprise, is seeking an intermediate Linux System...

Location

Canada , Edmonton

Salary:

Not provided

Randstad

Expiration Date

August 01, 2026

Requirements

Linux Systems Administration: 2–3 years of experience supporting Linux servers hosting critical business infrastructure. Intermediate proficiency required.
Virtualization: 2–3 years of practical experience with VMware. Ability to handle fundamental VM lifecycle tasks and monitor performance metrics.
Cloud Infrastructure: 2–3 years of experience with Google Cloud Platform (GCP). Basic proficiency (UI-based instance management) is mandatory
familiarity with the gcloud CLI is highly advantageous.
Scripting & Automation: Intermediate knowledge of BASH scripting for operational tasks, alongside foundational (junior-level) exposure to configuration management tools like Ansible or Saltstack.
Communication: Exceptional written and verbal communication skills (Level 5 proficiency) to effectively collaborate with a small team and document operational updates.
Schedule Flexibility: Must be comfortable and willing to accommodate regular evening patching (3–4 times/month) and quarterly off-hours maintenance windows.

Job Responsibility

Manage day-to-day operations, maintenance, and regular patching of Linux server environments.
Utilize VMware to provision, manage, and decommission virtual machines (start/stop, create/delete snapshots, create/delete VMs).
Monitor VMware infrastructure by actively reviewing system alerts and analyzing basic performance metrics.
Manage basic cloud infrastructure within Google Cloud Platform (GCP), including instance lifecycle management (start/stop, snapshotting, provisioning, and deleting).
Support scheduled evening patching windows 3 to 4 times per month.
Participate in quarterly infrastructure maintenance windows, typically occurring Sunday mornings between midnight and 6:00 AM.

What we offer

100% Remote Flexibility: Work from the comfort of your home anywhere in Canada, with a strong preference for Alberta-based candidates.
Enterprise Exposure: Gain valuable hands-on experience supporting critical business applications (such as SAP, Oracle ERP, or JD Edwards environments).
Consistent Hours: Enjoy a stable 40-hour work week with a predictable schedule for scheduled maintenance.
Growth Potential: This contract includes a strong possibility of extension based on performance and project needs.

Fulltime