Systems Administrator - Active Secret or Top-Secret Clearance

S2i2, Inc; San Jose (CA); On-site; USD 95,000 - 100,000; Full time

Benefits offered by this job

Professional certifications support

Team-building activities

Inclusive work culture

Job summary

S2i2, Inc. is seeking a Systems Administrator to manage and secure a diverse IT infra­structure in San Jose, CA, including Windows, Linux, VMware, and cloud services.

The role requires an active clearance and a strong background in virtualization, scripting, and IT operations. You will apply ITIL practices, perform upgrades and patches, and collaborate with IT teams to automate processes, document procedures, and ensure compliance with organizational policies and regulatory standards.

Qualifications

• Bachelor's degree (or equivalent work experience) in Information Technology, Computer Science, or a related field.
• Eight (8) years of experience in systems administration for Windows, Linux, or VMware environments.
• Excellent knowledge of Windows Server, Red Hat, CentOS, and virtualization tech (VMware ESXi/vSphere).
• Proficient in scripting (PowerShell, Bash, Python) and with system monitoring, patch management, and performance tuning.
• Strong troubleshooting, communication, and teamwork skills; able to manage multiple tasks and stay current with industry trends.

Responsibilities

• Ensure availability, performance, and security of systems across Windows, Linux, VMware, and cloud services (AWS/Azure).
• Apply ITIL best practices to incident, problem, and change management to minimize disruption.
• Perform system upgrades, patches, maintenance, and prompt issue resolution.
• Collaborate with IT teams to implement automation, maintain documentation, and ensure policy/regulatory compliance.

Skills

PowerShell

Bash

Python

ITIL practices

Communication

Teamwork

Cloud services (AWS/Azure)

Education

Bachelor's degree or equivalent in IT/CS

Tools

Windows Server

Red Hat

CentOS

VMware ESXi

VMware vSphere

Job description

Job Title

Systems Administrator

Location

San Jose, CA On-Site

Clearance

Active Secret or Top-Secret Clearance

Salary

$95K-$100K

Application Deadline

November 30, 2026

Description

Responsible for managing and maintaining a diverse and complex IT infrastructure.

Responsibilities

• Ensure the availability, performance, and security of systems across multiple platforms, including Windows and Linux servers, VMware virtual environments, and cloud services such as AWS or Azure.
• Apply ITIL best practices to manage incidents, problems, and changes effectively, ensuring minimal disruption to services.
• Perform system upgrades, patches, and routine maintenance while troubleshooting and resolving technical issues promptly.
• Collaborate with other IT teams to implement automation and optimization strategies, maintain detailed documentation, and ensure compliance with organizational policies and regulatory standards.

Requirements

• Bachelor's degree (or equivalent work experience) in Information Technology, Computer Science, or a related field
• Eight (8) years of experience in systems administration for Windows, Linux, or VMware environments.
• Possess excellent knowledge of relevant operating systems (e.g., Windows Server, Red Hat, CentOS) and virtualization technologies (e.g., VMware vSphere, ESXi).
• Proficient in scripting languages (e.g., PowerShell, Bash, Python) and experienced with system monitoring, patch management, and performance tuning.
• Demonstrate excellent troubleshooting, problem-solving, communication, and teamwork skills, the ability to manage multiple tasks effectively, and maintains currency with industry trends and best practices.
• Relevant certifications (e.g., Microsoft Certified: Windows Server, RHCSA, RHCE, VMware Certified Professional - VCP)

Desired Skills and Experience

• Familiarity with the USACE IT environment, regulatory requirements, and data security best practices are preferred.

Certification Required - One (1) From The List Below

• Microsoft Certified: Windows Server
• RHCSA
• RHCE
• VMware Certified Professional - VCP

About S2i2

S2i2 is a growing company with a supportive and inclusive culture and many opportunities for professional development and growth. We have created a supportive, family-like work environment where contributions are recognized. Regular company updates and open lines of communication with leadership fosters collaboration within the company.

We Are Proud To Include

• Support to achieve professional certifications and degrees
• Leadership that is accessible to all employees
• Regular company updates
• Client networking social engagements
• Monthly team-building activities (past examples: Top Golf)
• Supporting our community - including veterans

Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.