Senior Systems Administrator

Banner Life family of companies•Stamford, CT

8d•$165,000 - $175,000•Hybrid

About The Position

The Senior Systems Administrator is responsible for the stability, security, and ongoing operation of BannerPRT’s infrastructure platforms across Azure, Microsoft 365, and on‑premises environments. The Senior Systems Administrator serves as a senior technical escalation point and works closely with managed service providers (MSPs) to ensure service quality, consistency, and adherence to BannerPRT standards, security requirements, and operational expectations in a regulated environment.

Requirements

7+ years of experience in systems administration or infrastructure engineering.
Strong hands‑on experience with Azure, Microsoft 365, and Windows Server / Active Directory.
Experience supporting hybrid cloud environments.
Knowledge of identity and access management concepts.
Experience operating in regulated or audit‑driven environments.
Experience coordinating with or overseeing managed service providers.
Strong troubleshooting, documentation, and communication skills.

Nice To Haves

Experience in financial services, insurance, or pension administration environments.
Familiarity with SOC 2, NIST, or ISO security frameworks.
Relevant Microsoft or Azure certifications.

Responsibilities

Administer and support Azure infrastructure services including Entra ID, Conditional Access, RBAC, PIM, networking, compute, and storage.
Manage and support Microsoft 365 services including Exchange Online, Teams, SharePoint, and OneDrive.
Support on‑premises infrastructure including Windows Server, Active Directory, DNS/DHCP, Group Policy, and file services.
Design and maintain hybrid integration between on‑premises systems and Azure.
Lead incident resolution, root cause analysis, and preventative remediation.
Work closely with managed service providers (MSPs) to oversee service delivery, validate work quality, enforce standards, and address performance or compliance issues.
Implement and maintain security controls aligned with SOC 2 and NIST principles.
Support audits, risk assessments, and evidence collection activities.
Define, maintain, and improve operational runbooks, monitoring, backup, and recovery processes.
Mentor and provide technical guidance to system administrators and service desk staff.
Partner with IT leadership on platform improvements, standardization, and roadmap planning.

Benefits

10 - 25 vacation days, depending on experience level and years of service
4 floating holidays, 2 personal days, & 2 wellness days
10 - 15 sick days, depending on years of service
2 paid volunteering days
Health benefits, including medical, dental, and vision coverage
Supplemental health benefits and life insurance
6 weeks of paid parental and maternal leave
Immediate vesting into a 401 (k) savings plan with up to 6% company match
100% employer-contributed Pension Plan - Cash Balance Plan after 1 year of service
Flexible Workspace and Arrangements
Tuition and Certification reimbursements
Infertility and domestic partner benefits