Systems Administrator Job at Robert Half (San Antonio)

Systems Administrator

Contract Systems Administrator position responsible for configuration, maintenan...

Location

United States , Nashville

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

Proven experience as a Systems Administrator or in a similar role
Strong knowledge of Windows Server, Linux, and virtualization technologies
Experience with network administration and security protocols
Proficiency in hardware and software troubleshooting
Strong problem-solving skills and attention to detail
Excellent communication and interpersonal skills
Ability to work independently and as part of a team

Job Responsibility

Perform routine system maintenance, including software updates, patch management, and regular system backups
Manage and maintain server hardware and software, including Windows Server, Linux, or other relevant operating systems
Oversee network infrastructure, ensuring optimal performance, security, and reliability
Implement and monitor security protocols to safeguard systems and data
Provide technical support to end-users
Maintain detailed records of system configurations, changes, and updates
Assess system performance and capacity
Develop and implement backup and disaster recovery plans
Collaborate with technology vendors

What we offer

Medical, vision, dental, and life and disability insurance
401(k) plan
Free online training

Network and Systems Administrator

This position entails the configuration, maintenance, and troubleshooting of com...

Location

United States , Bloomington

Salary:

Not provided

Megaputer

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Informatics, Computer Science, Business or related field
2+ years’ experience as a network administrator or similar capacity
Microsoft Windows Server 2008, 2012
Windows 7, 8, 10
Linux
Switches, routers, network hardware, including 10Gbps fiberoptics, load balancing
Firewalls, VLANs (Cisco, HP, etc.), NAT, proxy
Understanding of networking concepts such as DNS, DHCP, Email, HTTP(s), SSL and TCP/IP protocols, and applications
Active Directory, Group Policy
VMware vSphere and/or Microsoft HyperV, backup solutions (Acronis, Barracuda, Windows Backup, etc.)

Job Responsibility

Install, maintain and administer computer networks and related computing environments, including computer hardware, systems software, applications software, and all configurations
Diagnose, troubleshoot, and resolve hardware, software, or other network and system problems and replace defective components when necessary
Plan, coordinate, and implement network security measures to protect data, software and hardware, including the virus protection software
Operate master consoles to monitor the performance of computer systems and networks, and to coordinate computer network access and use
Evaluate user needs, perform a comprehensive search/compare, and procure computer software and hardware, maintain adequate supplies (spare drives, printer paper, toners, etc.)
Design, assemble, configure and test computer hardware and networking and operating system software
Monitor network performance to determine whether adjustments need to be made, and to determine where changes will need to be made in the future
Assist in configuring, monitoring, and maintaining email applications
Assist in perform data backups and disaster recovery operations

Network & Systems Administrator

Analysis, design, development, implementation and maintenance of computer system...

Location

United States , Canton

Salary:

Not provided

LogicQue

Expiration Date

Until further notice

Requirements

Bachelor’s Degree in Computer Science, Engineering, or related degree
Five (4) years of experience
Travel and/or relocation to various unanticipated locations throughout the U.S. required
Bachelors in computer science or information systems or Bachelors in engineering with experience in software development
Experience: 0-4 years
Skills: HTML, JSP, Windows server, UNIX, Linux

Job Responsibility

Analysis, design, development, implementation and maintenance of computer systems and networks

Fulltime

IT System and Administrator

Your main objective will be to make sure that our IT infrastructure operates eff...

Location

India , Vadodara

Salary:

Not provided

VAP Group

Expiration Date

Until further notice

Requirements

Proven experience in a network administrator, system administrator, or related position
A bachelor’s degree (or an equivalent degree) in computer science or information technology
Knowledge of databases, networks (LAN, WAN), and patch management
Understanding of data backup/recovery, intrusion detection systems, and system security
Excellent communication abilities

Job Responsibility

Installing and setting up devices and software
Control network servers and equipment
Configure user accounts and workstations
Observe performance and keep systems up to date in accordance with requirements
Troubleshoot issues and outages
Ensure security through access controls, backups and firewalls
Modernize systems with the latest models and releases
Develop expertise to train staff on new technologies
Create an internal wiki with manuals, procedures, and IT policies

Fulltime

Cloud Systems Administrator

Knight Federal Solutions is a trusted provider to industry leading prime contrac...

Location

United States , Colorado Springs

Salary:

Not provided

Knight Federal Solutions

Expiration Date

Until further notice

Requirements

2 years of general systems administration experience demonstrating progressive responsibilities
2 years of experience performing Windows or Linux system administration duties
Experience supporting a cloud environment (AWS preferred) to include delivering, securing/managing, and diagnosing/troubleshooting complex issues
Experience in a DevSecOps environment (e.g., working with configuration management tools, applying automation & configuration/infrastructure as code concepts)
Bachelor’s Degree in Technical Discipline, or 4 years of equivalent professional or military experience can be used in lieu of degree requirements

Job Responsibility

Debug and enhance/modify Ansible scripts to deploy IaC and CaC
Patch and restart instances from enterprise patching repositories (YUM, WSUS
Set/configure/modify IAM policies to enable customer role-based access to workload IS
Integrate and implement platform capabilities (e.g., Nessus endpoint) in workload
Select and configure AMIs to optimize workload
Coordinate with other team members to implement capabilities to meet customer requirements
Troubleshoot various issues, such as operating systems, networking, cloud services, and software
Perform Active Directory administration and Group Policy management
Knowledge of DoD STIGs, and ability to implement them as needed
Run Nessus scans and remediate vulnerabilities

Middle System Administrator

We are looking for an experienced System Administrator to help maintain a stable...

Location

United States

Salary:

Not provided

JatApp

Expiration Date

Until further notice

Requirements

3+ years of experience in system or network administration or 2–4 years as a System Administrator / DevOps / Infrastructure Engineer
Practical experience with Zero Trust, preferably Cloudflare ZTNA
Confident knowledge of Linux and basic understanding of Windows Server
Knowledge of Windows / macOS, Azure AD, MDM, SSO, SCIM
Understanding of network protocols: DNS, DHCP, NAT, TCP/IP
Experience with Docker or Kubernetes
Experience with monitoring systems
Ability to write scripts (Bash and/or Python)
Basic knowledge of security (firewall, SSL, audit)
English — Upper-Intermediate+

Job Responsibility

Support and access: User support (HelpDesk), technical assistance, macOS/Windows configuration
Access management via Cloudflare ZTNA/Cloudflare Access (SSO, security policies)
Google Workspace and Microsoft 365 administration
Implementation and support of MDM solutions (Jamf, Intune, Kandji)
Infrastructure and systems: Administration of Linux (Ubuntu/Debian) and Windows Server systems
Support and development of internal infrastructure, performance optimization
Working with virtualization: VMware, Proxmox, Hyper-V
Configuration and support of network infrastructure (VLAN, VPN, Firewall)
Backup and disaster recovery configuration
Infrastructure security: updates, patching, access control

What we offer

Mental and Physical Health: health care is a must, so at JATAPP, we will cover health insurance for you
Benefits Cafeteria: choose what you like most — sports, food delivery, home office supplies — and we will cover your expenses under available budget
Knowledge sharing: such events are our way to grow together. We gather to discuss new trends, share our own insights, and elevate one another
Remote-First Culture: it’s up to you whether to work remotely or at our coworking space
Personal Equipment Policy: no tech troubles — you’ll get a MacBook and everything you need for comfortable and efficient work
Learning and Development Opportunities: it's a real pleasure for us to watch you learn, so we're happy to cover your learning and development costs, as well as English courses. Besides this, everyone in JATAPP gets access to the Projector Library
Community of like-minded people: at JATAPP, you will work in a team of like-minded people who are ready to launch a product, run a marathon, or climb Hoverla together
Creative freedom: we encourage initiative and creative thinking, so with us, you can be yourself and have the freedom of professional expression
Legal & Finance Support: we cooperate with the best financiers and lawyers who will be ready to help solve any of your questions upon request
Time-off Policy: 20 vacation days per year, 5 days for sick leave without medical confirmation, unlimited sick leaves with a doctor's note, 3 personal days, and 2 days off for special events or occasions

Fulltime

Cloud Systems Administrator

Knight Federal Solutions is a trusted provider to industry leading prime contrac...

Location

United States , Arlington

Salary:

Not provided

Knight Federal Solutions

Expiration Date

Until further notice

Requirements

2 years of general systems administration experience demonstrating progressive responsibilities
2 years of experience performing Windows or Linux system administration duties
Experience with Splunk, STIGs and SCAP Scans
Experience supporting a cloud environment (AWS preferred) to include delivering, securing/managing and diagnosing/troubleshooting complex issues
Experience in a DevSecOps focused environment (e.g., working with configuration management tools, applying automation & infrastructure as code concepts)
Bachelor’s Degree in Technical Discipline, or 4 years of equivalent professional or military experience can be used in lieu of degree requirements
Active TS/SCI clearance required

Job Responsibility

Familiarity with configuration management and engineering life-cycle best practices
Implementing, testing, and documenting system configurations
Hardening systems to meet security standards
Troubleshooting issues
Sustaining production systems that serve many end users

Staff Systems Administrator

As a Staff Systems Administrator, you will play a vital role in maintaining, mon...

Location

Australia , Canberra; Brisbane

Salary:

Not provided

Bluestaq

Expiration Date

Until further notice

Requirements

Minimum 8–10 years of systems administration or information technology experience supporting mission-critical environments
Relevant tertiary qualification in information technology or equivalent experience
Demonstrated proficiency in Linux systems administration and foundational networking principles
Strong understanding of cloud environments and identity management tools (AWS experience highly regarded)
Working knowledge of system vulnerabilities, security issues and remediation best practices
Experience managing and troubleshooting complex enterprise systems in both on-premises and cloud contexts
Familiarity with Atlassian tools such as Confluence and Jira
Experience with help desk systems, escalation workflows, and service delivery frameworks
Strong analytical and problem-solving skills, with a collaborative, customer-centric approach
Excellent verbal and written communication skills, with the ability to explain technical concepts clearly

Job Responsibility

Maintain and support the integrity of Bluestaq’s systems and networks through technical support and configuration management
Perform daily monitoring, maintenance, and troubleshooting of applications, networks and systems in both cloud and on-premise environments
Ensure high availability and reliability of enterprise systems supporting 24/7 operations
Provide timely, solutions-focused support to users and stakeholders, fostering a culture of responsiveness and collaboration
Manage system installations, upgrades, patching, and automation initiatives to improve performance and security posture
Collaborate with cross-functional engineering and cybersecurity teams to strengthen system resilience and streamline processes
Support and enhance cloud identity and access management tools, ensuring compliance with security and Defence standards
Develop and maintain operational documentation, procedures, and knowledge bases for system continuity
Act as a mentor within the IT team, promoting learning, knowledge sharing and a continuous improvement mindset
Identify and mitigate potential risks through proactive monitoring, testing, and response planning

What we offer

Superannuation
Annual performance bonus
Private health cover allowance
Health/wellness allowance
Professional subscription
Salary sacrifice and salary packaging options
Additional 1 week of annual leave per year = 5 weeks per year
Other leave in accordance with the National Employment Standards and state long service leave legislation

Fulltime

Systems Administrator

Robert Half

Location:
United States , San Antonio

Category:
IT - Administration

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
April 20, 2026

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Job Posted:April 20, 2026

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Job Posted:
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