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Job Details

NISA Investment Advisors

Systems Administrator, Information Technology (1870)

Business and Financial Operations



Full Time


St. Louis, Missouri, United States


NISA Investment Advisors, LLC (NISA) offers customized investment solutions for tax-exempt and taxable institutional clients. NISA manages over $306 billion in fixed income and equity securities and over $178 billion in derivative notional value. We seek bright, motivated individuals who can contribute to our growing team of professionals. Candidates with a high degree of independent thinking skills, strong analytical and quantitative skills, and team playing abilities are encouraged to apply.


The Systems Administrator is a member of the IT Enterprise Systems team focused primarily on supporting various enterprise technologies at NISA and providing tier 3 level issue resolution. The candidate for this position enjoys working with and being exposed to many different technologies. This position requires taking a lead role on projects (small and large) and following through to completion. It also requires mentoring other team members when needed.

• Administer, upgrade, and support email services (Exchange 2016 and Proofpoint)
• Implement and support Microsoft cloud technologies and services such as Azure AD, Azure IaaS, MS Teams, Exchange Online, SharePoint Online, OneDrive, CASB, and Intune
• Manage and support NISA’s Identity and Access Management (IAM) strategy, including MFA, SSO, and conditional access policies
• Responsible for new user onboarding tasks such as assigning permission sets, phone provisioning, and mailbox creation
• Manage and maintain a Microsoft Windows Server enterprise environment in a multi-site configuration (Active Directory, DNS, Group Policy, and Certificate Services).
• Manage, upgrade, and support NISA’s remote access environment, including Citrix administration and managing workstations in VMWare (Citrix Netscaler, Citrix XenApp, Citrix XenDesktop, Citrix PVS, Citrix DDC, Citrix StoreFront, VMWare)
• Regularly work in vCenter to create and manage templates, build and troubleshoot VM’s, and monitor resource utilization (VMWare, Control Up)
• Design and configure highly available systems through load balancing and GSLB (Citrix Netscaler)
• Responsible for user profile management and troubleshooting (Appsense).
• Manage, upgrade, and support Cisco VOIP (CUCM, Unity, CUPS, Expressways, Gateways, Trunks, IP Flex, SIP)
• Responsible for endpoint management and software deployments (MECM and Intune)
• Responsible for running and maintaining various security products and operations such as patch management, Forcepoint administration, desktop anti-malware software, malware investigations, and vulnerability/threat management
• Coordinate with business units to understand functional requirements to maintain stable and scalable systems
• Monitor and report on all critical infrastructure components that have a high impact on business operations


• Bachelor's degree in a related field, or equivalent combination of education and experience
• Three (3+) years of experience with implementation, configuration, and management of Microsoft domain services, Microsoft cloud technologies, VMware, or Citrix
• Working knowledge of virtualization technologies, VMWare is preferred
• In-depth knowledge of networking standards, concepts, best practices, and procedures
• Strong familiarity and experience with Microsoft Server administration (2012/2016/2019)
• In-depth experience with monitoring and diagnosing complex network, security and systems issues using tools such as Wireshark
• Microsoft, VMWare, and Citrix certifications preferred (MCP, MCSA, VCP, CCP-V, CCE-V)
• Experience with Powershell scripting and automation is a plus

NISA Investment Advisors, LLC is an equal Opportunity Employer – minorities/females/veterans/individuals with disabilities/sexual orientation/gender identity. Military Code 3E6X1