CrawlJobs Logo

Systems Administrator Senior Level

seekintegrity.com Logo

Integrity Technology Consultants

Location Icon

Location:
United States , Fort Meade

Category Icon
Category:
IT - Administration

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

150000.00 - 200000.00 USD / Year
Save Job
Save Icon
Apply Position

Job Description:

ITC is a Woman Owned Small Business delivering exceptional consultation to the U.S. Government in Systems/Software Engineering, Cybersecurity Solutions, Mission Operations/INTEL Analysis, and Management Services in order to enable our customers to solve the most challenging problems. With continued growth comes opportunity, and we are currently searching for a Top Secret SCI with polygraph-cleared Senior-Level Systems Administrator.

Job Responsibility:

  • Provides support for implementation, troubleshooting and maintenance of IT systems
  • Manages IT system infrastructure and any processes related to these systems
  • Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all the client/server/storage/network devices, mobile devices, etc
  • Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis, and resolution of problems
  • Provides support for the escalation and communication of status to agency management and internal customers
  • Provides support for the dispatch system and hardware problems and remains involved in the resolution process
  • Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity, and configures network components along with implementing operating systems enhancements and updates to improve reliability, security, and performance
  • Proficient with Linux
  • Minimum of 2 years Linux system administration experience
  • Experience with patching and upgrading Linux servers and networking resources
  • VM experience
  • Security + cert
  • Stand up and configure Linux servers
  • Apply patches and upgrades
  • Troubleshoot server issues
  • Administer customer accounts
  • Deploy monitoring tools
  • Deploy applications and tools
  • Assist with escalated customer tickets

Requirements:

  • Must currently possess an active NSA TS/SCI with FS Polygraph
  • Bachelor’s degree in a technical discipline
  • 15 years’ experience as a SA in programs of similar scope, type, and complexity
  • Linux system administration background
  • Knowledge of physical and virtual servers (rack/stack, network, build, deploy, etc.)
  • Knowledge of log aggregation applications

Nice to have:

  • Dell and HPE Linux servers
  • Juniper and Cisco routers, switches, and firewalls
  • Palo Alto firewalls
  • Ansible
  • Nutanix – VM management
  • Rubrik – data storage
  • Nomad containers
  • SALT scripts
  • LibreNMS
  • NetBox
What we offer:
  • 401K plan with company contributions (safe harbor and profit sharing)
  • 11 Federal holidays, 21 Days PTO
  • Medical, Dental, & Vision with substantial company contributions
  • Company provided Life, LTD and STD Insurance
  • Health Savings Accounts/ Flexible Spending Accounts
  • Referral Bonuses
  • Performance Bonuses
  • Tuition Assistance for Education, Training, and Professional certifications
  • Career Development

Additional Information:

Job Posted:
January 10, 2026

Employment Type:
Fulltime
Icon
Integrity Technology Consultants - All Job Offers
Job Link Share:
Copy Link Icon
Facebook Icon Twitter Icon LinkedIn Icon

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Systems Administrator Senior Level

Senior System Administrator

As a Senior System Administrator at Exor International, you will manage, maintai...
Location
Location
Italy , San Giovanni Lupatoto
Salary
Salary:
Not provided
exorint.com Logo
EXOR International
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience (5+ years) as a system administrator or in similar roles
  • Strong knowledge of Windows Server operating systems in hyperconverged server farm environments (Nutanix) and virtualization platforms (VMware)
  • Experience with monitoring tools (PRTG)
  • Good understanding of network protocols, DNS, DHCP, TCP/IP
  • Knowledge of Microsoft authentication services (AD and Entra ID)
  • Experience with Sophos Firewall, End Point Security, and VPN
  • Familiarity with mail relay servers (Libra Esva) and email management using Exchange Online
  • Ability to work independently and manage complex projects
  • Good written and spoken English
  • Willingness to travel occasionally to company locations
Job Responsibility
Job Responsibility
  • Manage and monitor physical and virtual servers (Windows/Linux)
  • Administer cloud environments (Azure)
  • Configure and maintain networks, firewalls, VPNs, and security systems
  • Automate processes using scripting (e.g., Bash, PowerShell) with MDM and EDB (Baramundi)
  • Oversee backups (Veeam) and disaster recovery (Nutanix asynchronous replication)
  • Provide second- and third-level technical support
  • Manage vulnerability assessments and implement remediations
  • Maintain technical documentation and update IT policies
  • Fulltime
Read More
Arrow Right

Senior Linux System Administrator - Support Engineer

Senior Linux System Administrator/System Support Engineer with expertise support...
Location
Location
Australia , Canberra
Salary
Salary:
Not provided
https://www.hpe.com/ Logo
Hewlett Packard Enterprise
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's degree in Computer Science, Information Technology, or related field, or equivalent work experience
  • At least 5 years of hands-on experience managing Linux systems in production environments, including HPC systems
  • Expertise in Linux/Unix operating systems, parallel file systems (Lustre, GPFS), and networking technologies
  • Proficiency in scripting/programming languages (Bash, Python, Perl, C++)
  • Experience with automation/configuration management tools (Ansible, Puppet, Chef, Terraform)
  • Strong understanding of networking concepts (TCP/IP, DNS, DHCP, firewalls, VPNs)
  • Familiarity with monitoring/logging tools (Nagios, Grafana, ELK Stack)
  • Experience with containerization technologies (Docker, Kubernetes)
  • Excellent problem-solving, analytical, and communication skills
  • Demonstrated ability to work independently in multi-technology environments and collaborate across teams
Job Responsibility
Job Responsibility
  • Deploy, configure, maintain, and troubleshoot Linux servers (Red Hat, CentOS, Ubuntu, or others) across physical, virtual, and cloud environments
  • Support, maintain, and optimize HPC systems, including installation, servicing, and advanced technical troubleshooting of hardware/software and parallel file systems
  • Monitor system performance, availability, and security using industry-standard tools and practices
  • Plan and execute upgrades, patches, enhancements, and migrations to ensure systems are current, secure, and optimized
  • Automate system administration tasks using scripting languages and configuration management tools
  • Implement and maintain backup/recovery strategies, disaster recovery plans, and system documentation
  • Collaborate with development, network, and security teams to support application deployments and troubleshoot issues
  • Provide technical consulting, mentoring, and guidance to junior team members
  • Ensure compliance with strict security protocols in sensitive environments
  • Participate in on-call rotation and respond to system incidents and outages
What we offer
What we offer
  • Competitive salary and performance-based bonuses
  • Comprehensive health, dental, and vision insurance
  • Retirement plan options
  • Paid time off and holidays
  • Professional development opportunities
  • Flexible work arrangements
  • Fulltime
Read More
Arrow Right

Senior Linux Systems Administrator – Datacenter Infrastructure

The consultant will oversee a robust estate of over 2,500 Red Hat Enterprise Lin...
Location
Location
United States , Somerset
Salary
Salary:
49.50 - 81.25 USD / Hour
clearbridgetech.com Logo
ClearBridge Technology Group
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum 10 years of hands-on experience in enterprise-level Linux system administration and technical operations
  • Prior experience in financial services
  • Proven expertise in RHEL 7/8, including deep familiarity with KVM virtualization and system internals
  • Advanced knowledge of HPE ProLiant server architecture, diagnostics, and lifecycle management
  • Demonstrated proficiency in security operations, including EDR/SIEM agent management and vulnerability remediation
  • Experience with HPE SAN technologies, including fabric zoning, Primera/Alletra storage systems, and fiber channel networking
  • Working knowledge of Puppet and Cobbler for configuration and provisioning automation
  • Proficient in scripting languages: Python, Perl, and Bash
  • capable of developing scalable automation solutions
Job Responsibility
Job Responsibility
  • Lead advanced administration, configuration, and performance optimization of Red Hat Enterprise Linux (RHEL) systems
  • Design and manage RHEL KVM virtualization environments, including provisioning, troubleshooting boot issues, and fine-tuning for optimal performance
  • Oversee lifecycle management of HPE ProLiant hardware, including upgrade analysis, firmware upgrades, component replacements, and remote diagnostics via iLO
  • Design and execute robust processes for infrastructure patching, reboot orchestration, and content lifecycle management
  • Administer and enhance security posture through deployment and maintenance of EDR and SIEM agents, ensuring compliance with CVE remediation SLAs
  • Analyze and resolve kernel-level system bottlenecks and network latency, delivering actionable performance tuning strategies
  • Manage HPE storage platforms (Primera, Alletra), including SAN zoning, volume provisioning, LVM configuration, and fiber channel switch operations
  • Maintain critical datacenter services: NTP/Chrony, Elastic Stack, Puppet, Cobbler, Rundeck, Squid Proxy, DNS, and Postfix
  • Implement proactive monitoring using tools such as Nagios/Naemon, Prometheus, and PRTG, ensuring high availability and rapid incident response
  • Develop and maintain automation frameworks using Ansible, Python, Perl, and shell scripting to streamline operational workflows
What we offer
What we offer
  • Excellent benefits and compensation packages
  • Additional compensation provided for bi-monthly Saturday production rollouts
  • Fulltime
Read More
Arrow Right

Senior Administrator

Our client, a global company based in Birmingham, is seeking an experienced Seni...
Location
Location
United Kingdom , Birmingham
Salary
Salary:
28000.00 - 31000.00 GBP / Month
https://www.office-angels.com Logo
Office Angels
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • GCSE level education or equivalent standard which will include English and Mathematics qualifications
  • previous experience in a similar role
  • excellent English language skills both written and spoken
  • experience of IT systems including Microsoft Office and the ability to utilise software packages available within the business
Job Responsibility
Job Responsibility
  • preparing monthly client property reports extracting financial arrears information and tenancy information from Tramps database tenancy schedule updating running of utility graphs data
  • preparing monthly client reports and dashboards using tenancy and financial data
  • liaising with FM teams onsite staff and lawyers to update reports and lease details
  • assisting with presentations formatting and visual materials
  • calculating and raising fees monitoring uplifts and chasing aged debts
  • setting up clients on Optimus and completing KYC checks
  • maintaining compliant QA files and insurance apportionments
  • typing correspondence reports and spreadsheets
  • managing diaries meetings travel and general admin support
  • coordinating supplier invoices and tenant data updates
What we offer
What we offer
  • pension
  • private medical insurance
  • 25 days holiday plus bank holidays
  • Fulltime
Read More
Arrow Right

Infrastructure Senior Tech Analyst – ORMB System Administrator

As an ORMB (Oracle Revenue Management and Billing - Version 2.9/3.X and above on...
Location
Location
India , Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Setting up and maintaining development, test, and production environments for ORMB in Virtual Infrastructure built with RHEL 7/8 OS
  • Cloning environments between different stages and applying necessary patches and updates
  • Setting up and overseeing the migration of data between environments
  • Automating batch jobs using tools like Tivoli Scheduler
  • Tuning system parameters for ORMB, CCB, and batch instances to optimize performance
  • Strong understanding of Oracle database, Middleware products used for ORMB deployments in RHEL 7/8 virtual Infrastructure, including flair for performance tuning and troubleshooting
  • Familiarity with Cloud technologies, virtualized hosts and database infrastructure, DevOps, CI/CD, SRE and other modern practices
  • Monitoring system performance and troubleshooting technical issues
  • Identifying and resolving issues related to the ORMB system
  • Familiarity with Service Level Agreements and ticketing tools for tracking and resolving issues
Job Responsibility
Job Responsibility
  • Environment setup, data migration, performance tuning, and security measures
  • Setup and Maintenance of development, test, and production environments for ORMB
  • Cloning and Patching environments
  • Data Migration between environments
  • Batch Scheduling
  • Performance Tuning
  • System Monitoring
  • Troubleshooting and Problem Solving
  • Understanding of SLAs and Ticketing Systems
  • Design and Code Review
  • Fulltime
Read More
Arrow Right

Senior Administrative Assistant

Robert Half is currently hiring a Senior Administrative Assistant to provide adv...
Location
Location
United States , El Cajon
Salary
Salary:
Not provided
https://www.roberthalf.com Logo
Robert Half
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum of 5 years of experience as an administrative assistant, preferably in a senior-level support role
  • High school diploma required
  • associate or bachelor's degree in Business Administration, Communications, or a related field preferred
  • Proficiency with Microsoft Office Suite (Outlook, PowerPoint, Word, Excel) and database or scheduling software (e.g., Zoom, Salesforce, or similar tools)
  • Exceptional verbal and written communication abilities, with strong interpersonal skills
  • Proven ability to prioritize tasks, manage competing deadlines, and work effectively under pressure
Job Responsibility
Job Responsibility
  • Provide high-level administrative support to senior executives or department heads, including calendar management, travel arrangements, and meeting coordination
  • Prepare and edit documents, presentations, and reports that align with organizational standards
  • Handle incoming communication (email, phone calls, etc.), acting as a liaison between executives and key stakeholders
  • Track and prioritize tasks, monitor deadlines, and follow up on action items to ensure projects are completed on time
  • Organize and manage documents, files, and data systems to ensure access to accurate and up-to-date information
  • Plan and execute company events, team meetings, or special projects as requested
  • Conduct research and compile data to support planning, decision-making, and project initiatives
  • Mentor entry level administrative staff or coordinate teamwork across the administrative team
What we offer
What we offer
  • Medical, vision, dental, and life and disability insurance
  • 401(k) plan
  • Free online training
Read More
Arrow Right

Senior Administrator

Temporary Senior Administrator role providing support within the Finance departm...
Location
Location
United Kingdom , North Shields
Salary
Salary:
15.00 GBP / Hour
https://www.office-angels.com Logo
Office Angels
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Highly organised with a strong ability to juggle multiple tasks
  • Detail-oriented and appreciates processes and systems
  • Team player who enjoys working with others
  • Committed to a 6-month contract with full-time hours
Job Responsibility
Job Responsibility
  • Delivering senior-level administrative support to ensure efficient functioning of departmental operations
  • Reporting directly to the Finance Controller
  • Performing document control duties with meticulous attention to accuracy and compliance
  • Liaising with customers regarding documentation
  • Overseeing coordination of goods receipt and dispatch
  • Collaborating across departments to support cohesive workflow
What we offer
What we offer
  • Discount vouchers on high street brands
  • Eye care vouchers
  • Pension scheme option with employer contributions
  • 28 days paid annual leave
  • Fulltime
Read More
Arrow Right

Senior Systems Engineer

AnaVation is seeking a highly skilled Senior Systems Engineer to join our Cross ...
Location
Location
United States , Vienna
Salary
Salary:
Not provided
anavationllc.com Logo
AnaVation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor’s degree in Engineering, Computer Science, or related technical discipline
  • 7–9 years of documented experience in Information Systems Engineering
  • Hardware and network designs for large-scale enterprise applications
  • Implementing and maintaining security best practices, creating and maintaining documentation for architecture, configuration and processes
  • Experience establishing and maintaining monitoring and alerting systems for cloud and on premise resources
  • Optimizing on premise and cloud infrastructure for cost efficiency and performance
  • Troubleshooting and resolving issues related to performance and availability
  • Documented and demonstrated experience with troubleshooting and problem solving
  • Experience with software development
  • Experience scripting and programming for automation
Job Responsibility
Job Responsibility
  • Architect, develop and support a for a highly available resource for mission-critical programs composed of numerous AWS services and on-premises servers across multiple locations
  • Automation and Cloud Integration: Automate the creation and management of AWS resources using AWS CloudFormation, AWS Lambda, GitLab, BASH, and Python scripting
  • Infrastructure Lifecycle Automation: Design and implement an automated, hands-free monthly server rebuild and switchover process leveraging CloudFormation, Lambda, and EventBridge
  • Linux Automation and Monitoring: Develop and maintain a comprehensive system of scripts and processes to automate configuration, maintenance, and monitoring of UNIX systems
  • Maintain network hardware and server infrastructure, including analysis, configuration, installation, and testing of new hardware and software
  • Support daily network operations, evaluating utilization, monitoring response times, and detecting and resolving operational problems
  • Troubleshoot issues at both the physical and logical levels of the network, using diagnostic tools and communication protocol analysis
  • Participate in planning, design, technical reviews, and implementation of network and infrastructure projects supporting voice and data communications
  • Maintain and enhance network infrastructure standards, including TCP/IP communication protocols, and ensure adherence to industry and security best practices
  • Exhibit proficiency with virtualization technologies (VMware, AWS, etc.) and network administration, ensuring high system availability and scalability
What we offer
What we offer
  • Generous cost sharing for medical insurance for the employee and dependents
  • 100% company paid dental insurance for employees and dependents
  • 100% company paid long-term and short term disability insurance
  • 100% company paid vision insurance for employees and dependents
  • 401k plan with generous match and 100% immediate vesting
  • Competitive Pay
  • Generous paid leave and holiday package
  • Tuition and training reimbursement
  • Life and AD&D Insurance
  • Fulltime
Read More
Arrow Right
Jobs by Category
Art and Entertainment Jobs Banking Jobs Call Center Jobs Construction Jobs Consulting Jobs Customer Service Jobs Education Jobs Energy Jobs Finance Jobs Gastronomy Jobs Health and Beauty Jobs Hospitality and Tourism Jobs Human Resources Jobs Insurance Jobs IT - Administration Jobs IT - Software Development Jobs Legal Jobs Logistics Jobs Manufacturing Jobs Marketing, Digital Marketing, SEO, SEM Jobs Media Jobs Nursing Jobs Office Administration Jobs Pharmacy Jobs Physical Work Jobs Public Relations Jobs Public Sector Jobs Purchasing Jobs Quality Control Jobs Real Estate Jobs Research and Development Jobs Sales Jobs
Job Positions Jobs by Country
United States Jobs United Kingdom Jobs India Jobs Canada Jobs Australia Jobs Germany Jobs Ireland Jobs Poland Jobs
Company
Blog About Us Contact
Follow Us
Facebook
X (Twitter)
LinkedIn
Instagram
CrawlJobs Group
ITFlashcards AllDevBlogs
© 2026 CrawlJobs Ltd. All Rights Reserved
Terms & Conditions Privacy Policy