Systems Administrator

Willdan•Anaheim, CA

About The Position

The future is now, Willdan is “Envisioning the Future” of clean energy and infrastructure as well as Sustainability through our work with cities, buildings, and transportation. Willdan is a national leader in energy, engineering, and software consulting services. Since 1964, we have provided all aspects of municipal and infrastructure engineering, including building and safety, public works, public financing, planning, and construction management services. We help engineers, facility owners, municipalities, and utilities meet their long-term goals and transition communities to clean energy and a sustainable future. We are seeking a highly skilled and experienced System Administrator to oversee, manage, and support our IT infrastructure, including servers, storage, virtualization platforms, Microsoft 365, and Citrix environments. Why Willdan? Competitive Salary Comprehensive Medical, Dental, and Vision Insurance 401K + employer match Employee Stock Purchase Program Employee Discount Program Generous Employee Referral Program Opportunities for Career Growth and Development Summary This role plays a critical part in maintaining system stability, performance, and security, while also leading infrastructure improvements, automation initiatives, acquisition integrations, and high-level troubleshooting. The ideal candidate is proactive, detail-oriented, and capable of mentoring junior team members while collaborating cross-functionally across departments.

Requirements

5–7+ years of experience as a System Administrator or in a similar infrastructure role.
Deep knowledge of Microsoft 365 administration, including Exchange Online, Teams, SharePoint, and compliance tools.
Demonstrated experience in acquisition/merger IT migrations, including identity, email, and file system integrations.
Strong experience with Windows Server environments and Active Directory architecture.
Expertise in Citrix technologies (Virtual Apps and Desktops, Citrix Cloud, Netscaler/ADC).
Proficiency with virtualization platforms.
Understanding of networking fundamentals (TCP/IP, VLANs, firewalls).
Experience with cloud platforms (Azure, AWS), including hybrid configurations.
Familiarity with enterprise backup and disaster recovery solutions.
Scripting and automation skills (PowerShell, Bash, or Python).
Strong documentation, project coordination, and communication skills.
Bachelor’s degree in computer science, Information Technology, or related field (or equivalent experience).
Certifications such as Microsoft Certified: Azure Administrator, M365 Enterprise Admin Expert, and Citrix Certified Associate.

Nice To Haves

Experience with endpoint management tools (Intune, Jamf).
Familiarity with compliance and governance (SOX, ISO27001, SOC2, NIST, etc.).
Exposure to infrastructure automation tools.

Responsibilities

Manage, monitor, and maintain on-premises and cloud-based infrastructure (e.g., Windows servers, Hyper-V, AWS/Azure).
Administer and optimize Citrix environments (Virtual Apps and Desktops, Citrix Cloud, ADC, StoreFront) to ensure reliable end-user access and performance.
Support and manage Microsoft 365 services including Exchange Online, SharePoint, Teams, and security/compliance tools.
Lead and execute IT integrations during acquisitions and migrations, including user/workstation/domain onboarding, data consolidation, and system harmonization.
Administer Active Directory, DNS, DHCP, Group Policy, and other core infrastructure services.
Maintain system availability, performance, and scalability through proactive monitoring and tuning.
Implement and maintain security best practices including patch management, access controls, and compliance.
Design, implement, and maintain backup and disaster recovery solutions.
Collaborate with network, security, and application teams to support enterprise initiatives and resolve complex issues.
Automate routine tasks using scripting languages such as PowerShell, Bash, or Python.
Create and maintain system documentation, runbooks, SOPs, and architectural diagrams.
Support audits (e.g., SOX, SOC2, ISO) by providing documentation and ensuring infrastructure compliance.
Provide mentorship and technical leadership to administrators and IT support staff.