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Senior System Administrator Jobs in Appleton, WI

Oshkosh Corporation

DT Technical Analyst Sr

Oshkosh, WI · On-site

... systems. We operate with unparalleled commitment to those who depend on our products and services ... DataBaseAdministration(DBA) * Server * DataNetwork * VoiceNetwork * Storage * Application Platforms ...

Oshkosh Corporation

DT Technical Analyst Sr

Oshkosh, WI · On-site

... systems. We operate with unparalleled commitment to those who depend on our products and services ... Data Base Administration (DBA) * Server * Data Network * Voice Network * Storage * Application ...

Oshkosh Corporation

DT Technical Analyst Sr

Oshkosh, WI · On-site

... systems. We operate with unparalleled commitment to those who depend on our products and services ... DataBaseAdministration(DBA) * Server * DataNetwork * VoiceNetwork * Storage * Application Platforms ...

Swift Pace Solutions

Salesforce Developer

Green Bay, WI · On-site

$54 - $71.50/hr

... export/updates, system customization â Ability to understand key business requirements and ... Delegated Admin capabilities, Communities, Partner portal, Sites is desirable Following ...

Prometric

Test Center Manager

Ashwaubenon, WI · On-site

$20/hr

Channel Engagement Manager or Sr. Manager DEPARTMENT: Test Center LOCATION: Ashwaubenon, WI TEST ... Prometric employs more than 600 Test Center Administrators (TCAs) worldwide who are highly ...

prometric

Test Center Manager

Ashwaubenon, WI

$17 - $20/hr

Channel Engagement Manager or Sr. Manager DEPARTMENT: Test Center LOCATION: Ashwaubenon, WI TEST ... Prometric employs more than 600 Test Center Administrators (TCAs) worldwide who are highly ...

prometric

Test Center Manager

Ashwaubenon, WI · On-site

$17 - $20/hr

Channel Engagement Manager or Sr. Manager DEPARTMENT: Test Center LOCATION: Ashwaubenon, WI TEST ... Prometric employs more than 600 Test Center Administrators (TCAs) worldwide who are highly ...

prometric

Test Center Manager

Ashwaubenon, WI

$17 - $20/hr

Channel Engagement Manager or Sr. Manager DEPARTMENT: Test Center LOCATION: Ashwaubenon, WI TEST ... Prometric employs more than 600 Test Center Administrators (TCAs) worldwide who are highly ...

Bank First

VP - BSA Officer

Oshkosh, WI · On-site

$80 - $100/hr

... Senior Management and the Board of Directors, and supports examinations, audits, and continuous ... Administer the customer risk rating methodology and ongoing monitoring processes to ensure risk ...

New

Lawrence University

Dean of Students

Appleton, WI · On-site

Oversee, participate in, and direct the Student Life Administrators-On-Call system. * Serve as the ... Provide leadership and oversight of Senior Committee activities, including Senior Week and Senior ...

Lawrence University

Dean of Students

Appleton, WI · On-site

Oversee, participate in, and direct the Student Life Administrators-On-Call system. * Serve as the ... Provide leadership and oversight of Senior Committee activities, including Senior Week and Senior ...

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All JobsSystem Administrator JobsSenior System Administrator JobsSenior System Administrator Jobs in Appleton, WI

Senior System Administrator information

See Appleton, WI salary details

$47.8K

$99.7K

$140K

How much do senior system administrator jobs pay per year?

As of Aug 19, 2026, the average yearly pay for senior system administrator in Appleton, WI is $99,701.00, according to ZipRecruiter salary data. Most workers in this role earn between $83,900.00 and $113,600.00 per year, depending on experience, location, and employer.

What does a senior system administrator do?

A Senior System Administrator is responsible for managing, maintaining, and securing an organization's IT infrastructure, including servers, networks, and related systems. They oversee the installation and configuration of hardware and software, troubleshoot complex technical issues, and ensure the reliability and performance of IT services. Senior System Administrators also implement security policies, perform regular system updates, and may supervise junior IT staff. Their expertise is essential for minimizing system downtime and protecting data integrity.

What are the key skills and qualifications needed to thrive as a senior system administrator, and why are they important?

To thrive as a Senior System Administrator, you need in-depth knowledge of operating systems, networking, security protocols, and significant experience managing IT infrastructure, usually backed by a degree in computer science or related certifications (such as CompTIA, Microsoft, or Cisco). Expertise with tools like VMware, Active Directory, PowerShell, and cloud platforms (AWS, Azure) is typically required. Strong problem-solving skills, attention to detail, and effective communication are crucial soft skills for this role. These abilities ensure reliable system performance, minimize downtime, and support the technology needs of an organization.

What are some common challenges a senior system administrator may encounter when managing hybrid cloud environments?

Senior System Administrators often face challenges balancing on-premises infrastructure with cloud-based resources, which can include ensuring consistent security policies, managing data synchronization, and monitoring system performance across multiple platforms. They must also stay updated on evolving technologies and compliance requirements, as well as collaborate closely with development, security, and networking teams. Addressing these complexities requires strong problem-solving skills, robust documentation practices, and a proactive approach to both troubleshooting and automation.

What is the difference between Senior System Administrator vs Network Administrator?

AspectSenior System AdministratorNetwork Administrator
CertificationsCompTIA Server+, Microsoft Certified: Windows Server, Cisco CCNACompTIA Network+, Cisco CCNA, Cisco CCNP
Work EnvironmentData centers, enterprise IT environments, server managementNetwork infrastructure, routing, switching, network security
ResponsibilitiesServer deployment, maintenance, troubleshooting, system upgradesNetwork setup, monitoring, troubleshooting, security management

While both roles require networking and system knowledge, Senior System Administrators focus on server and system management, whereas Network Administrators specialize in network infrastructure. Both roles are essential in enterprise IT, often collaborating to ensure seamless technology operations.

What are the most commonly searched types of System Administrator jobs in Appleton, WI?

The most popular types of System Administrator jobs in Appleton, WI are:

What cities near Appleton, WI are hiring for Senior System Administrator jobs?

Cities near Appleton, WI with the most Senior System Administrator job openings:

Senior System Administrator jobs near you

Senior IBM i Platform Engineer

Oshkosh Corporation

Menasha, WI • On-site

$82K - $134K/yr

Full-time

Re-posted 5 hours ago

Oshkosh Corporation rating

7.4

Company rating: 7.4 out of 10

Based on 41 frontline employees who took The Breakroom Quiz

287th of 490 rated machine equipment manufacturers

Job description

At Oshkosh, we build, serve and protect people and communities around the world by designing and manufacturing some of the toughest specialty trucks and access equipment. We employ over 18,000 team members all united by a common purpose. Our engineering and product innovation help keep soldiers and firefighters safe, is critical in building and keeping communities clean and helps people do their jobs every day.
SUMMARY:
Join Oshkosh Corporation as a Senior IBM i Platform & Power Systems Engineer and play a key role in evolving one of our most critical enterprise platforms. In this role, you'll own the architecture, reliability, security, and modernization of our IBM Power infrastructure supporting mission-critical ERP systems across the enterprise.
You'll work across IBM Power hardware, IBM i operating systems, virtualization, storage, automation, and high availability while helping drive initiatives in observability, Infrastructure as Code, AIOps, and platform security. This is an opportunity for someone who enjoys solving complex infrastructure challenges while influencing the future direction of a highly visible enterprise platform.
WHY JOIN OSHKOSH?
  • Own and influence a highly visible enterprise IBM Power environment supporting mission-critical business operations.
  • Help shape the future of the platform through automation, observability, security, and modernization initiatives.
  • Work with enterprise technologies including IBM Power, IBM i, Ansible, AIOps, and high availability solutions.
  • Collaborate with experienced infrastructure professionals while serving as a trusted technical leader.
  • Join a stable, global organization that continues to invest in its enterprise infrastructure and technology platforms.

WORK LOCATION
This position is based at our Menasha Data Center in Menasha, Wisconsin. Relocation assistance is available for qualified candidates. Oshkosh Corporation follows a hybrid work model, with three days on-site and two days remote each week.
YOUR IMPACT:
Plans, designs, implements, and supports the server systems, including IBM Power servers, IBM i OS partitions, HMC, VIO Servers, and IBM DS storage arrays. The position ensures stability of our mission-critical ERP platforms while driving innovation in observability, automation, and security.
  • Serve as the technical lead and escalation point for complex operational support, troubleshooting, security enforcement, and performance tuning across IBM Power systems and IBM i OS environments.
  • Manage the IBM Power and IBM i ecosystem end-to-end, including hardware, virtualization, and operating system administration.
  • Administer IBM VIOS environments, including configuration, maintenance, and troubleshooting.
  • Drive the adoption of observability and AIOps practices to improve monitoring, reduce mean time to resolution, and proactively identify issues.
  • Advance automation through Infrastructure-as-Code (Ansible, CL) to implement best practices, streamline patching and compliance, and reduce operational overhead through automation.
  • Support the design, testing, deployment, and ongoing support of HA/DR solutions (MIMIX or similar) to ensure ERP availability and business continuity.
  • Partner with infrastructure, cybersecurity, application, and business teams to support modernization initiatives while maintaining platform stability.
  • Provide mentoring, technical guidance, and strong communication to bridge technical and business stakeholders and help establish engineering best practices.
  • Participate in on-call support and planned maintenance activities to ensure the continued availability of critical business systems.

MINIMUM QUALIFICATIONS:
  • Five (4) or more years of experience in the field or in a related area.
  • Proven expertise with HMC, MIMIX HA/DR, VIO server, and IBM DS storage.
  • Strong understanding of ITIL processes, incident resolution, and stakeholder engagement.
  • Demonstrated skills in troubleshooting, CL scripting, and infrastructure design.
  • Ability to work standard business hours, with availability for after-hours/weekend work during patching, OS upgrades, and on-call rotations.
  • Strong leadership, communication, problem-solving, and collaboration skills.

STANDOUT QUALIFICATIONS:
  • Bachelor's degree in information technology or a related field.
  • Experience managing IBM i OS and IBM Power hardware environments.
  • Experience implementing observability and AIOps initiatives to reduce noise, accelerate incident response, and drive predictive insights.
  • Familiar with Fortra products (Alert, Console, Compliance Monitor, Exit Point Manager) or similar products.
  • Background in driving platform security initiatives and automating compliance.

Pay Range:
$82,900.00 - $134,300.00
The above pay range reflects the minimum and maximum target pay for the position across all U.S. locations. Within this range, individual pay is determined by various factors, including the scope and responsibilities of the role, the candidate's experience, education and skills, as well as the equity of pay among team members in similar positions. Beyond offering a competitive total rewards package, we prioritize a people-first culture and offer various opportunities to support team member growth and success.
Oshkosh is committed to working with and offering reasonable accommodation to job applicants with disabilities. If you need assistance or an accommodation due to disability for any part of the employment process, please contact us at corporatetalentacquisition@oshkoshcorp.com.
Oshkosh Corporation is a merit-based Equal Opportunity Employer. Job opportunities are open for application to all qualified individuals and selection decisions are made without regard to race, color, religion, sex, national origin, age, disability, veteran status, or other protected characteristic. To the extent that information is provided or collected regarding categories as provided by law it will in no way affect the decision regarding an employment application.
Oshkosh Corporation will not discharge or in any manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with Oshkosh Corporation's legal duty to furnish information.
Certain positions with Oshkosh Corporation require access to controlled goods and technologies subject to the International Traffic in Arms Regulations or the Export Administration Regulations. Applicants for these positions may need to be "U.S. Persons," as defined in these regulations. Generally, a "U.S. Person" is a U.S. citizen, lawful permanent resident, or an individual who has been admitted as a refugee or granted asylum.

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