Senior Cloud and System Administrator

United States, California, San Jose

Jul 21, 2026

Salary: $128000.00 - $167900.00/Yr

Job type: Full Time

Resume required: Yes

Posted date:

Full job description:

Whether you’re a recent grad or a seasoned professional, you can experience meaningful career growth oy a true sense of ownership as you work with a proven industry leader on some of the most exciting and high-profile projects in the nation. We offer a wide range of job opportunities, competitive compensation, full benefits, an Employee Stock Ownership Plan and more.

Why Rosendin? Committed. Innovative. Engaged.

If you’re looking to take your career to the next level and work with some of the best and brightest in the industry, we want to hear from you. Since our founding over 100+ years ago, Rosendin has been driven to positively impact the communities where we live and work. We are an organization built on integrity and we have a culture that empowers people, embraces diversity, and inspires everyone to do their best.

As one of the largest EMPLOYEE-OWNED electrical contractors in the United States, you will have the unique benefit of being a shareholder at a company that is experiencing tremendous growth and success. When our people succeed and fuel our success, we reward them. We’d love to have you as a shareholder!

The Senior Systems Administrator / IT Infrastructure Engineer is responsible for the design, implementation, administration, security, maintenance, and continuous improvement of enterprise infrastructure supporting business-critical operations. This position provides technical leadership across virtualization, Windows and Linux server environments, identity management, networking, endpoint security, cloud-integrated services, disaster recovery, and enterprise collaboration platforms. The role serves as the highest level of technical escalation while leading infrastructure modernization initiatives and ensuring secure, reliable, and highly available IT services.

• Administer and maintain enterprise Windows Server, Linux, VMware vSphere, networking, storage, and virtualization environments supporting business-critical applications.
• Design, deploy, configure, and support VMware ESXi, vCenter, virtual machines, clustered infrastructure, and enterprise storage platforms.
• Administer Active Directory, Group Policy, DNS, DHCP, VPN, identity management, authentication services, and enterprise directory services.
• Deploy, manage, and maintain enterprise endpoint management and security platform.
• Lead infrastructure projects including virtualization upgrades, office relocations, data center modernization, infrastructure refreshes, and technology migrations.
• Perform advanced troubleshooting for Windows, Linux, virtualization, storage, endpoint, and application issues while serving as Tier III technical escalation.
• Monitor infrastructure health, system performance, storage utilization, virtualization resources, and overall system availability while proactively resolving issues.
• Design, implement, and maintain backup, disaster recovery, and business continuity solutions to ensure operational resilience.
• Evaluate emerging technologies and recommend infrastructure improvements that increase reliability, security, automation, scalability, and operational efficiency.
• Develop technical documentation, operational procedures, system diagrams, disaster recovery documentation, and infrastructure standards.
• Automate administrative tasks using Power Shell and other scripting tools to improve operational efficiency.
• Coordinate with vendors, business units, and technical teams to successfully implement enterprise infrastructure initiatives.
• Mentor junior technical staff and provide technical leadership, knowledge sharing, and best practice guidance.
• Participate in change management, incident response, root cause analysis, and production support activities.
• Perform other duties as assigned in support of enterprise infrastructure and IT operations.

• Bachelor’s degree in Information Systems, Computer Science, Business Information Systems, or related discipline; equivalent professional experience considered.
• 5+ years of…