Systems Administrator - Active Secret or Top-Secret Clearance

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

Job summary

S2i2 is seeking a Systems Administrator in San Jose, CA to manage a diverse IT infrastructure across Windows, Linux, VMware, and cloud services. The role emphasizes reliability, security, and ITIL-aligned processes, with a focus on automation and documentation.

The ideal candidate has 8 years of systems administration experience, a relevant Bachelor’s degree, strong scripting skills (PowerShell, Bash, Python), and excellent communication and teamwork abilities to support a compliant,

Qualifications

• Bachelor’s degree or equivalent work experience in IT/CS.
• 8 years of systems administration experience in Windows/Linux/VMware.
• Strong knowledge of Windows Server, Red Hat/CentOS, and virtualization.
• Proficient in scripting and patch management with good troubleshooting.
• Excellent communication, teamwork, and prioritization skills.

Responsibilities

• Maintain availability, performance, and security of multi-platform systems including VMware and cloud services.
• Apply ITIL practices to incidents, problems, and changes with minimal downtime.
• Perform upgrades, patches, and routine maintenance while resolving issues promptly.
• Collaborate with IT teams to implement automation and keep detailed docs and compliance.

Skills

Windows administration

Linux administration

VMware vSphere/ESXi

Scripting (PowerShell, Bash, Python)

Incident management

Documentation

Teamwork & communication

Education

Bachelor’s degree in IT/CS

Tools

VMware vSphere/ESXi

Windows Server

Red Hat/CentOS

AWS

Azure

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

• A+
• CND
• Network+
• - Microsoft Certified: Windows Server, OR RHCSA, OR RHCE, OR VMware Certified Professional - VCP

This is a 6-month contract

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

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.