Senior Windows System Administrator Job at Robert Half (Los Altos)

It Senior System Administrator

This position is responsible for the effective installation, configuration, oper...

Location

United States , Newkirk

Salary:

Not provided

7 Clans Casinos

Expiration Date

Until further notice

Requirements

Bachelor’s degree or equivalent combination of education and work experience is required
6 years of systems administration experience
Guest Service experience preferred, however not required
Must be at least 18 years of age
Must be able to provide all documents required to show the incumbent is eligible to work in the United States
Required to pass a drug test and obtain and maintain a gaming license to work in a casino from the Otoe Missouria Gaming Commission
Valid Driver’s License
Must be willing and able to work days, nights, weekends, and holidays
Read, write, and speak the English language

Job Responsibility

Perform daily system monitoring to verify the integrity, reliability, and availability of all server resources and systems
Possess a thorough understanding of data flow within the casino management system and related systems
Perform daily security monitoring to identify intrusions or system misuse
Perform daily backup operations and ensure media is cycled off-site for safe storage
Perform regular file archival and purge data as required
Create, change, and disable user accounts as requested in Active Directory
Knowledge of working with VMware doing server maintenance
Investigate and troubleshoot problems as escalated and assign appropriate priority to work
Repair and recover from hardware and software failures to minimize the impact to casino operations
Apply software patches and upgrades on a regular basis

Fulltime

Senior Windows Administrator

GovCIO is seeking a highly skilled and motivated Senior Windows Administrator to...

Location

United States , Kearneysville

Salary:

105000.00 - 130000.00 USD / Year

GovCIO

Expiration Date

Until further notice

Requirements

Active Secret clearance
DoD 8570 IAT Level II certification (e.g., Security+ CE, CySA+)
Bachelor's degree in Information Technology, Cybersecurity, Computer Science, or related field with 8+ years (or commensurate expertise)
Extensive hands‑on experience installing, configuring, and managing Windows Server environments
Proven ability to manage VMware vSphere environments, including vCenter, ESXi, and virtual machine operations
In‑depth knowledge of Active Directory, including GPOs, DNS, and DHCP
Experience deploying, configuring, and troubleshooting Remote Desktop Services (RDS) solutions
Strong understanding of security principles and experience applying system hardening in government or regulated environments
Must hold a current CompTIA Security+ or equivalent certification

Job Responsibility

Install, configure, and maintain Windows Servers (2016, 2019, and newer), ensuring optimal performance and security
Manage and administer a large‑scale VMware vSphere environment, including ESXi hosts, vCenter Server, and virtual machine lifecycle management
Deploy, configure, and troubleshoot Remote Desktop Services (RDS) to provide secure remote access to applications and desktops
Utilize TrueSight Server Automation (TSSA) for automated patching, configuration management, and compliance enforcement across the server environment
Administer Active Directory, including the management of Group Policy, DNS, and DHCP services
Implement and maintain security controls in accordance with government standards, including system hardening and vulnerability remediation
Monitor system performance, respond to alerts, and provide advanced troubleshooting for system and application issues
Manage and test backup and disaster recovery solutions to ensure data integrity and availability
Create and maintain comprehensive documentation of system configurations, procedures, and changes

What we offer

Employee Assistance Program (EAP)
Corporate Discounts
Learning & Development platform, to include certification preparation content
Training, Education and Certification Assistance*
Referral Bonus Program
Internal Mobility Program
Pet Insurance
Flexible Work Environment

Fulltime

Senior System Administrator

2HB Incorporated is seeking a Senior System Administrator in order to support it...

Location

United States , Annapolis Junction

Salary:

Not provided

2HB

Expiration Date

Until further notice

Requirements

Bachelor’s degree in a technical discipline and 15 years’ experience as a System Administrator, OR High school diploma and 20 years’ experience as a System Administrator
Experience with Windows Sever Administration, Active Directory, and Group Policy
Experience with Linux Server Administration
Experience with Broadcom VMware/ESXi, Broadcom VMWare Virtual Networking, and Broadcom VMware vCenter
Networking Switching and Router Management
Storage Management (NetApp)
Hardware and Operating System troubleshooting
System hardening
Security Compliance Scanning (Nessus, ACAS)
Understanding of project design within the scope of security (RMF) requirements

Job Responsibility

Conduct functional and connectivity testing to ensure continuing operability
Develop and document systems administration standard operating procedures
Maintain baseline system security according to organizational policies
Manage accounts, network rights, and access to systems and equipment
Plan, execute, and verify data redundancy and system recovery procedures
Install, update, and troubleshoot systems and servers
Comply with organization systems administration standard operating procedures
Implement and enforce local network usage policies and procedures
Manage system and server resources including performance, capacity, availability, serviceability, and recoverability
Monitor and maintain system and server configurations

Fulltime

System Administrator Senior

As a System Administrator on our project, you’ll support the operation, maintena...

Location

United States , Catonsville

Salary:

77600.00 - 176000.00 USD / Year

Booz Allen Hamilton

Expiration Date

Until further notice

Requirements

Experience configuring and managing Linux and Windows operating systems, including supporting day-to-say operations, installing operating system software, troubleshooting, maintaining integrity of and configuring network components, and implementing operating systems enhancements
Experience monitoring and maintaining systems, including compute nodes, storage, networking, and software
Experience optimizing system operations and resource utilization and performing system capacity analysis
TS/SCI clearance with a polygraph
Associate's degree in an Information Technology field and 12+ years of experience as a lead systems administrator, Bachelor's degree in an Information Technology field and 8+ years of experience as a lead systems administrator, or 15+ years of experience as a lead systems administrator in lieu of a degree

Job Responsibility

Support the operation, maintenance, and design of information technology resources within a laboratory for High Performance Computing (HPC) technology and data analytics for a research organization
Maintain responsibility for the installation of new equipment and operating systems to best suit the needs of research to be conducted and the researchers requiring support
Support the review of current infrastructure to provide an overview and prepare plans for improvement and enhancement that will increase efficiency and security within the network
Maintain responsibility for cutting-edge computing systems and the evaluation of their use for research in furtherance of the mission
Identify problem areas and opportunities for improvement in a mission-critical network
Help your team better understand the network by turning metrics into information and explaining their meaning

What we offer

Health, life, disability, financial, and retirement benefits
Paid leave
Professional development
Tuition assistance
Work-life programs
Dependent care
Recognition awards program

Senior Windows System Engineer

We are seeking a motivated and skilled Senior Windows System Engineer with stron...

Location

United States , Washington, DC

Salary:

Not provided

Bamboo Solutions Corporation

Expiration Date

Until further notice

Requirements

BS and 5+ years of experience in VMware administration (vSphere, ESXi, vCenter) and HP enterprise server hardware (ProLiant, BladeSystem, Synergy), including lifecycle management and component replacement. (4 years experience in lieu of degree)
Ability to obtain and maintain a Public Trust requiring U.S. Citizenship.
Strong background in Windows Server administration (Active Directory, Group Policy, patching, and hardening).
Experience managing Azure resources (VMs, virtual networks, storage accounts, hybrid connectivity).
Working knowledge of PowerShell scripting and automation.
Experience with monitoring and patch management tools.
Familiarity with networking fundamentals (TCP/IP, VLANs, DNS, routing).
Strong troubleshooting, documentation, and communication skills.

Job Responsibility

Administer and maintain VMware vSphere environments, including ESXi hosts, vCenter, virtual machines, clusters, and storage configurations.
Perform provisioning, patching, and lifecycle management of virtual machines and templates.
Manage and support Windows Server environments (2016/2019/2022) -- Active Directory, DNS, DHCP, Group Policy, and file/print services.
Administer and maintain HP ProLiant, BladeSystem, and Synergy servers, including firmware updates, hardware diagnostics, and performance tuning.
Perform hardware lifecycle tasks -- server builds, racking, configuration, and component replacement (disks, NICs, power supplies, etc.).
Utilize HP Integrated Lights-Out (iLO), OneView, and System Insight Manager (SIM) for monitoring and remote management.
Collaborate with network and storage teams to ensure optimal performance and capacity planning of virtual and physical infrastructure.
Support Azure IaaS and hybrid integrations, including VM deployment, and hybrid identity using Azure AD Connect.
Troubleshoot and resolve performance, connectivity, and configuration issues in virtualized and hardware environments.
Maintain detailed documentation, standard operating procedures (SOPs), and infrastructure diagrams.

What we offer

Competitive salary based on experience
Profit sharing distributed twice a year
15 days of paid time off and 10 paid holidays per year
401(k) with employer matching
Health and dental benefits
Opportunity to work with other talented technical professionals

Fulltime

Senior Systems Administrator (Windows & Linux Migration)

We are seeking an experienced Senior Systems Administrator to support the migrat...

Location

United States , Austin, TX

Salary:

Not provided

Dutech Systems

Expiration Date

Until further notice

Requirements

8+ years of experience with Windows Server and RHEL environments
Strong experience with RHEL (5/6/7/8/9) and Windows Server (2008–2022)
Proven experience with system migration and OS upgrades
Strong troubleshooting skills for legacy systems
Experience with automation and scripting (Bash, PowerShell)
Knowledge of system security, patching, and vulnerability management

Job Responsibility

Lead migration and upgrade of legacy systems to supported versions of Windows Server (2016/2019/2022) and RHEL (7/8/9)
Administer and support both Windows and Linux (RHEL) environments
Perform in-place upgrades and fresh installations of operating systems
Troubleshoot and resolve issues in legacy and modernized environments
Implement system automation and scripting using Bash, PowerShell, and Ansible
Manage patching, system hardening, and vulnerability remediation
Support backup and recovery solutions for system reliability
Work with virtualization technologies (VMware) to support infrastructure needs
Utilize configuration management tools such as Ansible, SCCM, and PowerShell
Ensure compliance with security and operational standards

Senior Windows Server Administrator

We are looking for a Senior Windows Server Administrator to support a High-Perfo...

Location

Romania , Brasov

Salary:

Not provided

Eviden

Expiration Date

Until further notice

Requirements

Strong Experience as a Windows Server Administrator in enterprise or HPC environments
Deep expertise in Windows Server (2016/2019/2022), including AD, DNS, DHCP, and GPOs
Solid PowerShell scripting skills for automation and system management
Experience working in or alongside HPC infrastructure and Linux systems (Red Hat/CentOS/Ubuntu) is a plus
Familiarity with backup & recovery solutions such as Veeam or IBM TSM
Experience with CAE/CAT applications is an advantage
Good understanding of virtualization (VMware/Hyper-V) and system performance tuning
Strong documentation skills
experience with Jira, Confluence, GitHub is a plus
Fluent in English (mandatory)

Job Responsibility

Ensure high availability and performance of critical Windows Server infrastructure in an HPC environment
Install, configure, and manage Windows servers supporting CAE/CAT applications
Provide advanced troubleshooting and root-cause analysis for system- and application-level incidents
Implement and manage Windows Server updates, patching, and OS upgrades while minimizing downtime
Collaborate with the HPC/Linux team to ensure interoperability and performance optimization across hybrid environments
Manage user access rights, AD roles, group policies, and ensure alignment with compliance/security policies
Document issues, configurations, and solutions using Confluence, ITSM systems, or internal knowledge bases
Support application owners and end users by resolving infrastructure-related bottlenecks or integration issues
Leverage PowerShell and other scripting tools to automate system maintenance and monitoring tasks
Participate in "On Call" weekly shifts supporting off-hours and weekend activity

What we offer

Training and Certifications: Access to continuous learning and career development opportunities
Flexible working environment
Competitive salary and benefits package
Reimbursement: Get a yearly fixed amount for reimbursement
Performance Bonus: Earn an annual performance bonus based on your achievements
Career Advancement: Explore numerous opportunities for professional growth and career advancement
Extra Vacation Days: Take advantage of additional vacation days to relax and recharge

Senior Linux System Administrator

Synergy ECP is a leading provider of cybersecurity, software and systems enginee...

Location

United States , Annapolis Junction

Salary:

190000.00 - 220000.00 USD / Year

Synergy ECP

Expiration Date

Until further notice

Requirements

Quantifiable Linux SA work experience
Ansible scripting
Some Windows SA work
ProxMox
Centrify
Harvester
Rancher
Kubernetes / Docker
Other HCI (Hyperconverged Infrastructure) solution (Azure Stack HCI, Cisco HyperFlex Systems, DataCore SANsymphony, Dell VxRail Hyperconverged Infrastructure, HPE SimpliVity, Nutanix Hyperconverged Infrastructure (HCI), NetApp HCI, Scale Computing Platform (SC Platform))
Fifteen (15) years' experience as a SA in programs and contracts of similar scope, type, and complexity

What we offer

Highly competitive compensation
Comprehensive Health Benefits package
401K Retirement plan
People Partners for personal and professional navigation
Wellness resources
Company-sponsored continuing education program
Generous Paid Time Off
11 paid holidays a year
Flexible work options
Philanthropy program participation

Fulltime

Select Country

Senior Windows System Administrator

Job Description

Job Responsibility

Requirements

Nice to have

What we offer

Looking for more opportunities?