Mid Level Senior Systems Administrator Jobs
Mid level senior systems administrator jobs go to professionals ready to own infrastructure projects end to end, make architectural decisions with limited oversight, and mentor junior colleagues. Openings are split across on-site, remote, and hybrid settings in Technology & Software, Healthcare & Medical Services, and Biotechnology & Pharmaceuticals, with employers like Raytheon, Northrop Grumman, and Booz Allen Hamilton hiring at this level now.
Find JobsOverview
Open roles155+
Top stateCalifornia
Top employerRaytheon
Top cityAustin, TX
Work type90% On-site
Top industryTechnology
Showing 5 of 155+ Mid Level Senior Systems Administrator jobs
IT Systems Administrator - Austin, TX
We won't show you this job again
New 1m ago
Rand Construction
IT Systems Administrator - Austin, TX
Austin, Texas
New 1m ago
Systems and Network Administrator- IT
We won't show you this job again
New 1m ago
Kimble Companies
Systems and Network Administrator- IT
Dover, Ohio
New 1m ago
Senior Specialist, Systems Administrator
We won't show you this job again
New 1m ago
L3Harris
Senior Specialist, Systems Administrator
Carlsbad, California
New 1m ago
Linux Systems Administrator Tier 1 & 2 (HPC)
We won't show you this job again
New 1m ago
AMERICAN SYSTEMS
Linux Systems Administrator Tier 1 & 2 (HPC)
Dallas, Texas
New 1m ago
Sr. Principal Systems Administrator
We won't show you this job again
New 1m ago
Raytheon
Sr. Principal Systems Administrator
El Segundo, California
New 1m ago
New 1m ago
IT Systems Administrator - Austin, TX
Rand Construction·Austin, Texas
Job functions:
3+ yrs exp.
Bachelor's degree
Full Time
51-200 employees
Job Description
Love Where You Work!
This IT Systems Administrator will be responsible for the installation, configuration, maintenance, and support for the entire IT infrastructure for our seven offices across the US including remote staff. This includes servers, networking, Office 365, Exchange Online, endpoints, Tier 2 and 3 support, security threat assessments—all items pertaining to the continuity of systems, servers, and networks.
ABOUT rand*
JOB DUTIES
QUALIFICATIONS AND EXPERIENCE
Knowledge, Skills, Abilities
PHYSICAL JOB DEMANDS & WORKING CONDITIONS
Note: This job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee.
rand* is consistently ranked among the best companies to work for, and we aspire to be the most respected and renowned builder for excellence, leadership, integrity, and unsurpassed value.
rand* construction is committed to ensuring an inclusive environment. We are proud to be an Equal Opportunity and Affirmative Action Employer by providing opportunities for all employees and applicants without regard to race, sex, gender, national origin, religion, age, disability, veteran status, genetic information, sexual orientation, gender identity and any other protected status in accordance with applicable law.
Women, minorities, individuals with disabilities, veterans, and LGBTQ+ individuals are encouraged to apply.
Here at rand*, IT is a critical function of our operations. We have led the charge in innovative technical solutions for over 10 years—and in this time, our IT workstream has sought to provide our team members with best-in-class software, hardware, and systems. To this effect, we are seeking to add a team member who is looking to learn and grow in our IT Systems Administrator role.
This IT Systems Administrator will be responsible for the installation, configuration, maintenance, and support for the entire IT infrastructure for our seven offices across the US including remote staff. This includes servers, networking, Office 365, Exchange Online, endpoints, Tier 2 and 3 support, security threat assessments—all items pertaining to the continuity of systems, servers, and networks.
ABOUT rand*
rand* construction is an award-winning, woman-owned national commercial contractor specializing in tenant interiors, retail, restaurants, and building renovations (capital expenditure). Founded in 1989 by Linda Rabbitt, rand* has grown from a small interiors firm to a multi-market construction company offering a wide range of services to national and regional clients. Today, rand* is headquartered in Alexandria, VA, and manages regional offices in Atlanta, GA; Austin, TX; Charlotte, NC; Dallas, TX; Houston, TX; Denver, CO; and Salt Lake City, UT with revenues in excess of $700 million annually.
JOB DUTIES
- Perform regular server updates, patches, and upgrades; administer endpoint systems such as desktops, laptops, surfaces, and servers
- Server administration such as installing and configuration roles, features, managing domain environment such as user accounts, permissions, RBAC, and hybrid O365 Dir Sync.
- Domain Infrastructure management : design, deploy, manage DNS, DHCP, print management, site and services
- Monitor and maintain the backup and recovery strategy for the on-prem and virtual environment; test and document disaster recovery procedures to ensure business continuity
- Provide hardware and software diagnostics and maintenance, troubleshoot network connectivity issues between sites and subsites, implement and manage network security protocols
- Diagnose and resolve end-user tier 2 or 3 problems that are being assigned by IT Systems Manager and IT Director
- Manage Hyper-converged Nutanix on-prem virtual and cloud environment and ensure virtual servers snapshots are being held twice a day
- Exchange online and O365 administration including Power Automate, mailboxes, distribution groups and connectors
- Monitor email flow, troubleshoot issues, and ensure email gateway security Avanan are in place
- Administer and optimize the overall Office 365 environment including SharePoint Online, OneDrive for Business, and Teams
- Power Automate management including design, development, and implementation of automated workflows—as well as integration of Power automates with other O365 services and Crystal server to streamline business processes
- Troubleshoot, maintain integrity, and configure network components along with implementing operating systems enhancements to improve reliability and performance
- Setup and maintenance of Nutanix virtualization environments
- Manage company provided equipment including mobile devices by working directly with vendors while issuing and tracking hardware assignments
- Provide user support for system and application issues
- Research and purchase of systems/equipment to fit business needs in cooperation with IT System Manager
- Stay current on new and emerging technology and best practices
- Work with 3rd party vendors on projects
- Provide support during weekends and after hours
QUALIFICATIONS AND EXPERIENCE
Education and Certifications
- Bachelor’s degree from an accredited college in a related discipline, or equivalent experience/combined education
- 3-6+ years of professional experience
- One or multiple computing environment certifications: CompTIA A+, Network+, Security+, MCP
Knowledge, Skills, Abilities
- Must be able to provide support during weekends and after hours
- Knowledge of the principles, methods, and techniques used in network systems administration and support
- Knowledge and experience with configuring, administering, and maintaining: Microsoft Hyper-v, Windows Server 2012 - 2022
- Strong communication and customer service skills, both verbal and written, with the capability to make decisions and adapt to change
- Ownership and execution of incident management and system maintenance
- Execution of PowerShell scripting
- Demonstrated lead experience in help desk
-
Must-have experiences:
- Comprehensive knowledge of Microsoft technologies (O365, SharePoint, Active Directory including, etc.)
- Strong understanding of virtualization technologies (Nutanix AHV, Hyper-V)
- Strong understanding of domain environments
- Knowledge of security policies and general vulnerability management
- Strong understanding of networking, DNS, DHCP, and network troubleshoots
- Microsoft Azure Entra ID environment and Storage accounts
- Windows server 2012 R2-2022
- MS SQL 2016 & 2019
- Remote support applications (Bomgar)
- Cloud email security platforms (Avanan)
- Ticket tracking systems
- Sage
- Nextiva UCaaS technologies
- Velocloud, Fortigates, FortiAPs, and Arrista switches
- Supporting IOS and Android devices
- Preferred knowledge of construction and financial management software packages such as Timberline, Timberscan, Procure, Prolog
PHYSICAL JOB DEMANDS & WORKING CONDITIONS
This position is located in the Austin, TX office with potential local travel as needed.
Note: This job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee.
rand* is consistently ranked among the best companies to work for, and we aspire to be the most respected and renowned builder for excellence, leadership, integrity, and unsurpassed value.
rand* construction is committed to ensuring an inclusive environment. We are proud to be an Equal Opportunity and Affirmative Action Employer by providing opportunities for all employees and applicants without regard to race, sex, gender, national origin, religion, age, disability, veteran status, genetic information, sexual orientation, gender identity and any other protected status in accordance with applicable law.
Women, minorities, individuals with disabilities, veterans, and LGBTQ+ individuals are encouraged to apply.
Rand Construction
IT Systems Administrator - Austin, TX
Austin, Texas
New 1m ago51-200 employees
Job functions:
3+ yrs exp.
Bachelor's degree
Full Time
Job Description
Love Where You Work!
This IT Systems Administrator will be responsible for the installation, configuration, maintenance, and support for the entire IT infrastructure for our seven offices across the US including remote staff. This includes servers, networking, Office 365, Exchange Online, endpoints, Tier 2 and 3 support, security threat assessments—all items pertaining to the continuity of systems, servers, and networks.
ABOUT rand*
JOB DUTIES
QUALIFICATIONS AND EXPERIENCE
Knowledge, Skills, Abilities
PHYSICAL JOB DEMANDS & WORKING CONDITIONS
Note: This job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee.
rand* is consistently ranked among the best companies to work for, and we aspire to be the most respected and renowned builder for excellence, leadership, integrity, and unsurpassed value.
rand* construction is committed to ensuring an inclusive environment. We are proud to be an Equal Opportunity and Affirmative Action Employer by providing opportunities for all employees and applicants without regard to race, sex, gender, national origin, religion, age, disability, veteran status, genetic information, sexual orientation, gender identity and any other protected status in accordance with applicable law.
Women, minorities, individuals with disabilities, veterans, and LGBTQ+ individuals are encouraged to apply.
Here at rand*, IT is a critical function of our operations. We have led the charge in innovative technical solutions for over 10 years—and in this time, our IT workstream has sought to provide our team members with best-in-class software, hardware, and systems. To this effect, we are seeking to add a team member who is looking to learn and grow in our IT Systems Administrator role.
This IT Systems Administrator will be responsible for the installation, configuration, maintenance, and support for the entire IT infrastructure for our seven offices across the US including remote staff. This includes servers, networking, Office 365, Exchange Online, endpoints, Tier 2 and 3 support, security threat assessments—all items pertaining to the continuity of systems, servers, and networks.
ABOUT rand*
rand* construction is an award-winning, woman-owned national commercial contractor specializing in tenant interiors, retail, restaurants, and building renovations (capital expenditure). Founded in 1989 by Linda Rabbitt, rand* has grown from a small interiors firm to a multi-market construction company offering a wide range of services to national and regional clients. Today, rand* is headquartered in Alexandria, VA, and manages regional offices in Atlanta, GA; Austin, TX; Charlotte, NC; Dallas, TX; Houston, TX; Denver, CO; and Salt Lake City, UT with revenues in excess of $700 million annually.
JOB DUTIES
- Perform regular server updates, patches, and upgrades; administer endpoint systems such as desktops, laptops, surfaces, and servers
- Server administration such as installing and configuration roles, features, managing domain environment such as user accounts, permissions, RBAC, and hybrid O365 Dir Sync.
- Domain Infrastructure management : design, deploy, manage DNS, DHCP, print management, site and services
- Monitor and maintain the backup and recovery strategy for the on-prem and virtual environment; test and document disaster recovery procedures to ensure business continuity
- Provide hardware and software diagnostics and maintenance, troubleshoot network connectivity issues between sites and subsites, implement and manage network security protocols
- Diagnose and resolve end-user tier 2 or 3 problems that are being assigned by IT Systems Manager and IT Director
- Manage Hyper-converged Nutanix on-prem virtual and cloud environment and ensure virtual servers snapshots are being held twice a day
- Exchange online and O365 administration including Power Automate, mailboxes, distribution groups and connectors
- Monitor email flow, troubleshoot issues, and ensure email gateway security Avanan are in place
- Administer and optimize the overall Office 365 environment including SharePoint Online, OneDrive for Business, and Teams
- Power Automate management including design, development, and implementation of automated workflows—as well as integration of Power automates with other O365 services and Crystal server to streamline business processes
- Troubleshoot, maintain integrity, and configure network components along with implementing operating systems enhancements to improve reliability and performance
- Setup and maintenance of Nutanix virtualization environments
- Manage company provided equipment including mobile devices by working directly with vendors while issuing and tracking hardware assignments
- Provide user support for system and application issues
- Research and purchase of systems/equipment to fit business needs in cooperation with IT System Manager
- Stay current on new and emerging technology and best practices
- Work with 3rd party vendors on projects
- Provide support during weekends and after hours
QUALIFICATIONS AND EXPERIENCE
Education and Certifications
- Bachelor’s degree from an accredited college in a related discipline, or equivalent experience/combined education
- 3-6+ years of professional experience
- One or multiple computing environment certifications: CompTIA A+, Network+, Security+, MCP
Knowledge, Skills, Abilities
- Must be able to provide support during weekends and after hours
- Knowledge of the principles, methods, and techniques used in network systems administration and support
- Knowledge and experience with configuring, administering, and maintaining: Microsoft Hyper-v, Windows Server 2012 - 2022
- Strong communication and customer service skills, both verbal and written, with the capability to make decisions and adapt to change
- Ownership and execution of incident management and system maintenance
- Execution of PowerShell scripting
- Demonstrated lead experience in help desk
-
Must-have experiences:
- Comprehensive knowledge of Microsoft technologies (O365, SharePoint, Active Directory including, etc.)
- Strong understanding of virtualization technologies (Nutanix AHV, Hyper-V)
- Strong understanding of domain environments
- Knowledge of security policies and general vulnerability management
- Strong understanding of networking, DNS, DHCP, and network troubleshoots
- Microsoft Azure Entra ID environment and Storage accounts
- Windows server 2012 R2-2022
- MS SQL 2016 & 2019
- Remote support applications (Bomgar)
- Cloud email security platforms (Avanan)
- Ticket tracking systems
- Sage
- Nextiva UCaaS technologies
- Velocloud, Fortigates, FortiAPs, and Arrista switches
- Supporting IOS and Android devices
- Preferred knowledge of construction and financial management software packages such as Timberline, Timberscan, Procure, Prolog
PHYSICAL JOB DEMANDS & WORKING CONDITIONS
This position is located in the Austin, TX office with potential local travel as needed.
Note: This job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee.
rand* is consistently ranked among the best companies to work for, and we aspire to be the most respected and renowned builder for excellence, leadership, integrity, and unsurpassed value.
rand* construction is committed to ensuring an inclusive environment. We are proud to be an Equal Opportunity and Affirmative Action Employer by providing opportunities for all employees and applicants without regard to race, sex, gender, national origin, religion, age, disability, veteran status, genetic information, sexual orientation, gender identity and any other protected status in accordance with applicable law.
Women, minorities, individuals with disabilities, veterans, and LGBTQ+ individuals are encouraged to apply.
See All 155+ Mid Level Senior Systems Administrator Jobs
Find roles that match your experience and apply in just a few clicks.
Find JobsMid Level Senior Systems Administrator Job Market
Who's Hiring
- Raytheon7
- Northrop Grumman4
- Booz Allen Hamilton3
- Apple2
- Peraton2
Top Industries Hiring
- Technology & Software8
- Healthcare & Medical Services7
- Biotechnology & Pharmaceuticals7
- Electronics & Hardware6
- Consulting & Professional Services6
Mid Level Senior Systems Administrator Jobs: Frequently Asked Questions
How do I get a mid level senior systems administrator job?
Position yourself around ownership, not just task completion. Highlight systems you administered independently, incidents you resolved, and improvements you drove, such as automating a deployment process or hardening a network configuration. Certifications like RHCSA, Microsoft 365, or VMware VCP strengthen your application, and demonstrating cross-team collaboration shows you are ready for broader scope.
Which companies hire mid level senior systems administrators?
Companies hiring mid level senior systems administrators right now include Raytheon, Northrop Grumman, and Booz Allen Hamilton, based on current listings on Migrate Mate as of June 2026. Hiring at this level comes from a broad mix of employers, including large enterprises modernizing on-premise infrastructure, managed service providers scaling client operations, and mid-size organizations building out dedicated IT teams.
Are there remote mid level senior systems administrator jobs?
Yes, though availability varies by employer and role type. About 10% of mid level senior systems administrator openings are remote or hybrid as of June 2026, making this a realistic option for experienced administrators. Roles involving cloud infrastructure, monitoring, and scripting tend to accommodate remote work more readily than positions requiring hands-on hardware management.
How do I move up to a mid level senior systems administrator role?
Growth from entry level into mid level comes from accumulating ownership over time, not just years on the job. Build depth in a core area such as Linux administration, Active Directory, or cloud platforms, then take on projects where you own the outcome. Documenting your impact, earning relevant certifications, and gradually taking on work that requires less oversight signals readiness for a mid level title.
Which industries hire the most mid level senior systems administrators?
Mid Level senior systems administrator roles concentrate in Technology & Software, Healthcare & Medical Services, and Biotechnology & Pharmaceuticals, based on current listings on Migrate Mate as of June 2026. These sectors drive consistent demand because they rely on complex, always-on IT environments where experienced administrators are needed to maintain uptime, enforce security standards, and support growing infrastructure without constant senior supervision.