Windows System Administrator

Vaco is hiring a Windows System Administrator for a direct hire opportunity in Cincinnati, Ohio, with one of our highly reputable clients.


This is a hands-on, well-rounded infrastructure role supporting a stable, enterprise environment. It offers the opportunity to work across a broad technology stack while partnering closely with an experienced Infrastructure Manager (this role reports directly to that position but does not include management responsibilities).


This is a 100% onsite position in Cincinnati. The role includes participation in an on-call rotation (approximately one week every four weeks), along with occasional after-hours maintenance support.


Role Overview


The System Administrator will support and maintain the organization's core IT infrastructure, including Windows Server, Active Directory, Microsoft 365, VMware, and related systems. This person will play a key role in day-to-day operations, troubleshooting, and ongoing infrastructure improvements.


We're looking for a reliable, hands-on systems administrator who is comfortable working in production environments, can troubleshoot under pressure, and has an interest in improving systems through automation and best practices.


Key Responsibilities

• Administer and support Windows Server environments and core infrastructure systems to ensure performance, availability, and security
• Manage Active Directory, including users, groups, permissions, Group Policy, and related services
• Support Microsoft 365 (Exchange Online, Teams, licensing, user administration, troubleshooting)
• Maintain and support identity and access management solutions, including Active Directory, Entra ID, and Okta (SSO, MFA, provisioning)
• Support VMware vSphere environments (VMs, hosts, clusters, monitoring, troubleshooting)
• Assist with virtual desktop environments (VMware Horizon, Azure Virtual Desktop)
• Support backup, recovery, patching, and security processes
• Assist with storage administration, monitoring, and configuration
• Support Azure infrastructure (VMs, storage, networking, RBAC)
• Provide operational support for SQL Server environments (monitoring, job review, backup verification)
• Use PowerShell and automation tools to streamline processes and improve efficiency
• Respond to alerts and incidents, document work, and communicate status clearly
• Partner with vendors and internal teams on system upgrades, projects, and improvements

Required Qualifications

• 3-5 years of system administration experience in an enterprise environment
• Strong experience with Windows Server and Active Directory
• Experience supporting Microsoft 365 / Office 365
• Hands-on experience with VMware vSphere
• Experience with backup/recovery processes and basic infrastructure security practices
• Experience with PowerShell or scripting for automation
• Strong troubleshooting, documentation, and communication skills
• Ability to work both independently and as part of a team
• Willingness to participate in an on-call rotation (approximately one week every four weeks)
• Bachelor's degree in IT or related field preferred (or equivalent experience)

Preferred Experience

• Identity and access management tools (Okta, SSO, MFA, ADCS, PKI)
• Experience with automation tools, APIs, or configuration management
• Exposure to monitoring/logging tools such as Zabbix or Sumo Logic
• Experience with Azure, AVD, FSLogix, enterprise storage, or SQL Server high availability

Ideal Candidate


This role is best suited for someone who is dependable, hands-on, and comfortable owning infrastructure support from start to finish. The ideal candidate is calm under pressure, communicates clearly, and takes pride in maintaining stable, secure systems while continuously improving the environment.

Vaco by Highspring values a diverse workplace and strongly encourages women, people of color, LGBTQ+ individuals, people with disabilities, members of ethnic minorities, foreign-born residents, and veterans to apply.

EEO Notice


Vaco by Highspring is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment because of race (including but not limited to traits historically associated with race such as hair texture and hair style), color, sex (includes pregnancy or related conditions), religion or creed, national origin, citizenship, age, disability, status as a veteran, union membership, ethnicity, gender, gender identity, gender expression, sexual orientation, marital status, political affiliation, or any other protected characteristics as required by federal, state or local law.


Vaco by Highspring and its parents, affiliates, and subsidiaries are committed to the full inclusion of all qualified individuals. As part of this commitment, Vaco by Highspring and its parents, affiliates, and subsidiaries will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact View email address on click.appcast.io .


Vaco by Highspring also wants all applicants to know their rights that workplace discrimination is illegal .


By submitting to this position, you agree that you will be giving Vaco by Highspring the exclusive right to present your as a candidate for the foregoing employment opportunity. You further agree that you have represented information about yourself accurately and have not affirmatively misrepresented your qualifications. You also agree to maintain as confidential, to the fullest extent permitted by law, any information you learn from Vaco by Highspring about the position and you will limit disclosure of information about the position only to the extent necessary to perform any obligations in furtherance of your application. In exchange, Vaco by Highspring agrees to exercise reasonable efforts to represent you through all solicitation, job screening and resume dispersal.

Privacy Notice


Vaco by Highspring and its parents, affiliates, and subsidiaries ("we," "our," or "Vaco by Highspring") respects your privacy and are committed to providing transparent notice of our policies.

• California residents may access Vaco by Highspring HR Notice at Collection for California Applicants and Employees here .
• Virginia residents may access our state specific policies here .
• Residents of all other states may access our policies here .
• Canadian residents may access our policies in English here and in French here .
• Residents of countries governed by GDPR may access our policies here .

Pay Transparency Notice


Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to:

• the individual's skill sets, experience and training;
• licensure and certification requirements;
• office location and other geographic considerations;
• other business and organizational needs.

With that said, as required by local law, Vaco by Highspring believes that the following salary range referenced above reasonably estimates the base compensation for an individual hired into this position in geographies that require salary range disclosure. The individual may also be eligible for discretionary bonuses.