Job Description
Description
Job Title: Senior MS Systems Engineer L3
Primary Location: Chicago IL, near O’Hare / Northwest Suburbs
Position Type: Full-Time Direct Hire or Contract to Hire
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Overview TalentFish is casting a line for a Senior MS Systems Engineer L3 in Chicago’s near west suburbs. This is a hybrid role as needed (approx. 1-2 days per week or less). This position will be primarily focused on managing/maintaining on-premises infrastructure, with some interaction with cloud-based tools such as Azure AD (Entra ID) and Intune.
In this role, you will be designing, implementing, managing, and maintaining the organization’s Information Technology Systems.
Y
ou will be working with the architecture team to evaluate and ensure the efficient and secure operation of IT and business systems.
- The ideal candidate will have in-depth skills in Windows System Administration, Active Directory management, a strong understanding and management of FSMO roles, Group Policy Management, Event Viewer and Event Log analysis, and GPO configuration and maintenance.
What You Bring to the Role / Required Skills
Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent work experience).
Minimum of 5+ years of experience in systems administration, IT infrastructure management, and
Experience supporting Microsoft technologies, including MS Windows Server, Microsoft System Center Configuration Manager (SCCM), MS Office 0365, MS Intune, Active Directory, and Azure AD (Entra ID).
Proven experience supporting and managing on-premises infrastructure, including Active Directory, Windows Server, storage systems, and virtualization platforms (e.g., Hyper-V).
Comfortable operating in on-premises IT environments, while possessing working knowledge/experience in cloud technologies like Azure AD and Intune.
Strong expertise in Active Directory operations, including FSMO role management, Group Policy Objects (GPO), and Event Viewer/Event Log analysis for system diagnostics and auditing.
Proven experience in designing, implementing, and maintaining server and storage infrastructures.
Experience working with complex IT environments, including Active Directory configurations, Azure AD (Entra ID), VMs, and Hyper-V.
Experience working with multiple operating systems, servers, and storage systems management.
Experience managing system security, IAM, compliance, and endpoint security using tools like Okta, SentinelOne, or similar.
Requirements
What You’ll Do. (Skills Used in this Position)
Server Management:
Take ownership of on-premises system infrastructure, ensuring stability, performance, and security across physical and virtual environments.
Administer and maintain server infrastructure, including installation, configuration, and monitoring.
Perform proactive monitoring and diagnostics using Event Viewer and other native tools to ensure server health and system integrity.
Perform regular system updates, backups, and ensure high availability of servers.
Troubleshoot server-related issues and optimize server performance.
Storage Management:
Design, implement, and maintain the storage infrastructure ecosystem.
Design, implement, and maintain data backup environment, including off-site disaster recovery.
Responsible for applying patches, upgrading software, and making sure that data is secure.
Maintain the fiber channel switches, cloud storage, and SAN arrangements.
Active Directory:
Design, implementation, and maintenance of on-premises Active Directory, including group policies, domains, and authentication. Familiarity with Azure Active Directory (Entra ID) in a hybrid capacity is beneficial.
Responsibilities include managing domains, troubleshooting Active Directory authentication issues, performing FSMO role placement and maintenance, and using Event Logs for diagnostics and security auditing.
Ensure that the Active Directory environment is secure, efficient, and scalable.
Manage certificate authority servers, certificate lifecycle, and secure PKI infrastructure.
Provide management and support of DNS systems.
Develop strategies for disaster recovery and ensure compliance with regulations and policies.
System Design, Implementation & Configuration:
Design, implement, and maintain IT systems and infrastructure.
Ensure the seamless integration of innovative technologies into existing systems.
Assist in the recommendation of hardware and software solutions to meet organizational requirements.
Security and Compliance:
Develop, implement, and enforce security policies, procedures, and best practices.
Assist during regular security audits and vulnerability assessments.
Ensure compliance with industry regulations and standards.
Monitor and address issues related to device endpoint security and configuration deployment.
Technical Support:
Collaborate with the service desk team to resolve escalated technical problems.
Develop and maintain documentation for troubleshooting and system configurations.
Provide technical support to end-users, addressing hardware and software issues.
Perform incident root cause analysis and remediation of system outages.
Participate in on-call rotation to provide off-hours support and maintenance.
Collaboration and Communication:
Work closely with cross-functional teams to understand business requirements.
Collaborate with peers, system architects, and other stakeholders to develop effective IT solutions.
Communicate technical information to non-technical stakeholders.
Maintain infrastructure diagrams, configurations, and operating procedures.
Continuous Improvement:
Stay informed about industry trends and emerging technologies.
Propose and implement improvements to enhance system performance and efficiency.
Participate in ongoing professional development to stay current with relevant certifications and skills.
