Senior Systems Administrator

Overview

We are seeking a skilled and self-driven Systems Administrator with strong expertise in cloud services, Microsoft enterprise technologies, virtualization, and modern security platforms The ideal candidate will have hands-on experience with AWS, Microsoft 365/Intune, VMware, and Zscaler, and will play a key role in maintaining secure, scalable, and well-documented systems. This position is best suited to someone who enjoys solving technical challenges, improving infrastructure through automation and best practices, and operating with autonomy in a dynamic environment.

Responsibilities

Core Responsibilities

Cloud & Enterprise Services

• Manage AWS environments and implement infrastructure-as-code using Terraform
• Administer Microsoft 365 and Exchange Online
• Configure and manage Intune for device/application security

Network Security & Access

• Maintain and optimize Zscaler (ZIA, ZPA, ZDX)
• Implement security policies, access controls, and monitoring standards

Infrastructure & Virtualization

• Maintain VMware vSphere 8 (vCenter, ESXi, Horizon View)
• Administer Windows Server roles (AD, DNS, DHCP, IIS, BitLocker)

Skills Required

Qualifications

Required

• 4+ years’ experience in systems administration or similar role
• 2+ Experience with AWS, Microsoft 365/Exchange, VMware, Zscaler
• Strong troubleshooting and problem-solving skills
• Ability to operate independently and collaboratively

Preferred

• Certifications in one or more: AWS, Microsoft, VMware, or Zscaler
• Scripting/automation background
• Familiarity with compliance and regulatory frameworks relevant to IT (e.g., CMMC, NIST 800-171 or C-SCRM).

Additional Value-add Skills

• PowerShell/Python automation skills
• Enterprise hardware management (PowerEdge, SANs, Unifi)
• Understanding of CMMC, NIST, or C-SCRM frameworks
• Experience tuning Defender, Horizon View, or IIS
• Strong documentation + communication capability

Candidates who meet 70–80% of the core requirements are encouraged to apply — we value growth, curiosity, and capability over perfection.

Education

Bachelors degree preferred, preferably in management information systems, math or engineering. Additional degrees or certifications may substitute for years of experience.

Benefits

We offer competitive salaries commensurate with education and experience. We have an excellent benefits package that includes:

• Comprehensive health, dental, life, long and short-term disability insurance
• 100% Company funded Retirement Plans
• Generous vacation, holiday and sick pay plans
• Tuition assistance

About Tecolote Research

Tecolote Research is a private, employee-owned corporation where people are our primary resource. Our investments in technology and training give our employees the tools to ensure our clients are provided the solutions they need, and our very high employee retention rate and stable workforce is an added value to our customers. Apply now to connect with a company that invests in you.

View all career opportunities: www.tecolote.com

Follow us on social media: LinkedIn | X @TecoloteInc | Facebook

[EOE/M/F/Disability/Veterans]