Senior Network Administrator

Washington Water Service; San Jose (CA); On-site; USD 120,000 - 170,000; Full time

Job summary

California Water Service Group (Cal Water) invites applications for a Senior Network Administrator to design, implement, and support IAM platforms (AD, Entra ID, Okta) and Microsoft 365 services, including Exchange Online, SharePoint Online, and Teams. The role also covers Azure cloud infrastructure, VMware, SAN, and disaster recovery.

On-site in San Jose, CA, with leading responsibilities for security, availability, and governance.

Qualifications

• Bachelor's degree in Computer Science or equivalent.
• On-site work required in San Jose, CA.
• Experience administering IAM platforms (AD, Entra ID, Okta) and Microsoft 365 services.
• Strong understanding of SSO, MFA, and identity governance.
• Experience with Zero Trust security architectures and regulatory requirements.
• Ability to lead IAM initiatives and provide technical leadership.

Responsibilities

• Administer Active Directory, Microsoft Entra ID, and Okta Identity Cloud, including user lifecycle management and access controls.
• Configure identity federation and directory integrations using SAML, OAuth, OIDC, SCIM.
• Maintain identity security controls aligned with Zero Trust and policy requirements.
• Monitor identity activity and respond to incidents; improve security posture.
• Lead IAM projects including onboarding and automation; provide on-call support when needed.
• Administer Microsoft 365 (Exchange Online, SharePoint Online, Teams) and integrate with Entra ID/Okta.
• Design and support Azure cloud infrastructure and hybrid solutions, including networking and security.
• Maintain VMware, SAN, backup and DR capabilities; ensure SOX compliance.

Skills

Active Directory

Microsoft Entra ID

Okta Identity Cloud

SSO

MFA

Zero Trust Architecture

Azure

VMware

SAN

Microsoft 365

Exchange Online

SharePoint Online

Microsoft Teams

Education

Bachelor's degree in Computer Science

Tools

VMware

Azure

SAN

Exchange Online

Job description

California Water Service Group (Cal Water) invites you to build a meaningful career with the third largest publicly traded water utility in the United States. Guided by our mission to be the leading provider of water and wastewater services, we are dedicated to improving the quality of life for the customers, communities, and employees we serve. Our culture is grounded in core values-integrity, quality, service, value, health and safety, respect and collaboration, and corporate citizenship-and is reflected in our recognition as a Top Workplace®, a Great Place to Work®, and a J.D. Power leader in customer satisfaction for multiple years. Join Cal Water and be part of a purpose driven organization where your work makes a lasting impact.

The Senior Network Administrator is responsible for the design, implementation, administration, and support of the company's Identity and Access Management (IAM) platforms and Microsoft enterprise collaboration services. Primary responsibilities include administration of Active Directory, Microsoft Entra ID, Okta Identity Cloud, Single Sign-On (SSO), Multi-Factor Authentication (MFA), identity governance, and Microsoft 365 services including Exchange Online, SharePoint Online, and Microsoft Teams. Secondary responsibilities include administration of Microsoft Azure cloud infrastructure, virtual server environments, backup and recovery systems, storage infrastructure, and disaster recovery solutions. The position provides technical leadership, operational support, and on-call response to ensure the security, reliability, and availability of critical business systems. This position is located in San Jose, California.

Identity & Access Management (Primary)

• Administer Active Directory, Microsoft Entra ID, and Okta Identity Cloud, including user lifecycle management, access controls, Single Sign-On (SSO), Multi-Factor Authentication (MFA), identity governance, privileged access management, and authentication policies.
• Configure and maintain identity federation and directory integrations between Active Directory, Microsoft Entra ID, Okta, and third-party applications using SAML, OAuth, OIDC, and SCIM.
• Implement and maintain identity security controls aligned with Zero Trust Architecture (ZTA), cybersecurity standards, regulatory requirements, and company policies.
• Monitor identity, authentication, and access-related activity; investigate incidents and implement corrective actions to strengthen the organization's security posture.
• Lead IAM initiatives and projects including application onboarding, access modernization, authentication enhancements, and identity lifecycle automation.

Microsoft 365 Administration (Primary)

• Administer and support Microsoft 365 services including Exchange Online, SharePoint Online, Microsoft Teams, and related collaboration technologies.
• Manage Microsoft 365 security, compliance, mail flow, collaboration, and governance configurations.
• Support integration of Microsoft 365 services with Entra ID, Okta, and other enterprise applications.
• Monitor and optimize Microsoft 365 environments for availability, performance, security, and user experience.

Azure Cloud Infrastructure

• Design, implement, and support Microsoft Azure cloud infrastructure and hybrid cloud solutions including networking, compute, storage, identity, security, and connectivity services.
• Monitor and optimize cloud resources for performance, availability, security, and cost efficiency.
• Support cloud migrations, modernization initiatives, and infrastructure automation efforts.

Server, Backup, Storage & Infrastructure (Secondary)

• Administer and support VMware and virtual server environments.
• Administer, maintain, and troubleshoot Storage Area Network (SAN) infrastructure, backup systems, and recovery solutions.
• Support business continuity and disaster recovery initiatives, including Azure Backup, Azure Site Recovery, backup operations, recovery testing, and disaster recovery planning.
• Install, support, and maintain enterprise infrastructure, virtualization, networking, and security services.
• Monitor, maintain, troubleshoot, and optimize server, storage, cloud, and supporting infrastructure systems.

General Responsibilities

• Ensure accurate documentation of identity, Microsoft 365, cloud, server, and infrastructure configurations and procedures.
• Research emerging technologies and recommend security, identity, collaboration, and infrastructure enhancements.
• Lead and manage infrastructure projects of moderate complexity and scope.
• Ensure compliance with Sarbanes-Oxley (SOX), cybersecurity, and other regulatory requirements.
• Provide technical leadership, mentoring, and operational guidance to Network Administrators and other IT staff.
• Participate in Continuous Improvement initiatives and perform other duties as assigned.
• Performs work on site in assigned office location, no option for remote work

Minimum Qualifications:

• Bachelor's degree in Computer Science,