Linux System Administrator Jobs in Wisconsin (NOW HIRING)

Description

Our client is seeking an L1 Systems Engineer to support infrastructure operations and vulnerability remediation efforts as the organization prepares for and executes major technology initiatives, including the D1 (Fiserv DNA) core platform implementation. This role will focus on day-to-day systems administration, patching, vulnerability management, service requests, incident resolution, and infrastructure support while engineers focus on strategic projects.

This is an excellent opportunity for a junior to mid-level infrastructure professional looking to broaden their experience across Windows systems, virtualization, security remediation, and enterprise infrastructure technologies in a collaborative environment.

Key Responsibilities:

Perform day-to-day systems administration across infrastructure environments

Respond to and resolve service requests and infrastructure incidents

Support vulnerability remediation efforts and track remediation progress

Assist with audit findings and infrastructure security initiatives

Administer Windows Server environments

Manage virtual machines within VMware and/or Nutanix environments

Execute backup and restore operations

Support Active Directory and Group Policy administration

Assist with server patching, upgrades, and lifecycle management

Participate in change management activities and documentation

Troubleshoot infrastructure and system issues

Collaborate with infrastructure, security, and project teams

Maintain operational stability during major enterprise initiatives

Required Skills & Qualifications:

3-5 years of Systems Administration or Infrastructure Support experience

Windows Server administration experience

VMware and/or Nutanix AHV experience

Active Directory and Group Policy administration

Backup and recovery technology experience

Experience with vulnerability remediation and patch management

Strong troubleshooting and analytical skills

Excellent written and verbal communication skills

Ability to work independently and manage multiple priorities

Nice-to-Have Skills:

Linux administration

Microsoft 365 administration

PowerShell scripting and automation

Basic networking knowledge (VPNs, VLANs, TCP/IP, routing, switching, firewalls)

Experience with vulnerability management tools such as Tenable, Qualys, Rapid7, or Nessus

Experience supporting infrastructure modernization or migration projects

Work Environment:

Hybrid work arrangement

Onsite in Madison, WI preferred Tuesday and Wednesday

Remaining days remote

Employee Value Proposition:

Gain hands-on experience supporting a large-scale core banking transformation

Exposure to enterprise infrastructure and security initiatives

Opportunity to strengthen virtualization, vulnerability management, and systems administration skills

Collaborative environment with strong mentorship and growth potential

Long-term project work with potential extension beyond the initial contract term based on business needs and project timelines.

Skills

windows server administration, vulnerability remediation, Vulnerability Tracking & Audit Remediation, VMware Virtualization, Nutanix AHV (or equivalent virtualization experience), Active Directory Administration, Group Policy (GPO) Management, Systems Administration / Infrastructure Operations, Backup & Restore Technologies, Strong Troubleshooting & Analytical Skills, Written & Verbal Communication Skills, linux administration, Microsoft 365 Administration, PowerShell Scripting & Automation, Networking Knowledge (VPNs, VLANs, TCP/IP, Routing, Switching, Firewalls), Nutanix AHV Experience, Vulnerability Management Tools (Tenable, Qualys, Rapid7, Nessus), Infrastructure Automation Experience, Backup & Recovery Solutions, Windows Server Migration Experience, Security or Audit Remediation, Technical Documentation, Experience in Financial Services

Top Skills Details

windows server administration,vulnerability remediation,Vulnerability Tracking & Audit Remediation,VMware Virtualization,Nutanix AHV (or equivalent virtualization experience),Active Directory Administration,Group Policy (GPO) Management,Systems Administr

Additional Skills & Qualifications

Linux administration experience

PowerShell scripting and automation

Microsoft 365 administration

Basic networking knowledge (VPNs, VLANs, TCP/IP, firewalls)

Experience with vulnerability management tools (Tenable, Qualys, Rapid7, Nessus)

Exposure to backup/recovery solutions

Experience supporting infrastructure migrations or modernization efforts

Familiarity with change management and technical documentation

Strong organizational and communication skills

Financial services or regulated industry experience preferred

Self-motivated, team-oriented, and eager to learn

Experience supporting audit remediation or security initiatives is a plus

This is a Contract position based out of Madison, WI.

The pay range for this position is $30.00 - $50.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

This is a hybrid position in Madison,WI.

This position is anticipated to close on Aug 15, 2026.

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.