Senior Systems Engineer; VMware & Microsoft Infrastructure

Responsibilities

We are seeking a Senior Systems Engineer with deep expertise in VMware infrastructure technologies to serve as the organization's onsite technical subject matter expert for VMware, Active Directory, Microsoft 365, Entra , and Intune environments.

This individual will play a critical role in the administration, optimization, and modernization of the organization's VMware infrastructure while helping establish long-term architecture, standards, governance, and best practices. The ideal candidate is not only a strong systems administrator, but also someone who understands infrastructure architecture, can drive strategic improvements, and enjoys collaborating closely with team members through knowledge sharing and mentorship.

This is a contract to hire position located onsite in Cicero, Illinois

• Significant hands‑on experience administering and supporting enterprise VMware environments.
• Strong expertise with:
  • VMware vSphere
  • ESXi
  • vCenter
  • VMware lifecycle management, upgrades, and performance optimization
  • Active Directory
  • Microsoft 365
  • Entra
  • Intune
• Experience designing, managing, and troubleshooting highly available virtualized environments.
• Experience supporting hybrid Microsoft infrastructure environments hosted on VMware platforms.
• Strong understanding of storage, compute, networking, and virtualization concepts.
• Experience with VMware capacity planning, performance tuning, disaster recovery, and infrastructure modernization initiatives.
• Strong understanding of identity and access management principles.
• Experience with Power Shell scripting and automation.
• Proven ability to troubleshoot complex infrastructure issues across VMware and Microsoft technology stacks.
• Experience documenting environments, implementing standards, and driving infrastructure improvements.
• Strong communication and collaboration skills with the ability to work effectively across teams.
• Legally authorized to work in the U.S. without sponsorship.
• Must demonstrate a "can-do" attitude.

Preferred Qualifications

• Bachelor's degree in Information Technology, Computer Science, or a related field preferred.
• Equivalent combination of professional experience and technical expertise will also be considered.
• VMware certifications (VCP, VCAP) highly preferred.
• Relevant Microsoft infrastructure certifications are a plus.
• Experience participating in virtualization migrations, datacenter transformations, or infrastructure modernization projects.

Compensation Range:

$48-$57 per hour

What you get:

We offer weekly competitive pay, medical, dental, vision, 401K and more.

About Us:

Sentinel delivers solutions that can efficiently address a range of IT needs – from security, to communications, to systems & networks, to software applications, to cloud and managed services; all of which include our staffing solutions for our clients. Since 1982, Sentinel has grown from providing technology maintenance services to our current standing as one of the leading IT services and solutions provider in the US.

We have aligned with many of today’s global technology leaders including Cisco, Dell, VMware and Microsoft. Sentinel services customers both nationally and internationally with primary support operating centers in Downers Grove (HQ), Chicago, and Springfield, IL;
Phoenix, AZ.;
Lansing, and Grand Rapids, MI;
Milwaukee, WI; and Denver, CO.

As part of Sentinel's employment process, candidates will be required to complete a background check. Only those who meet the minimum requirements will be contacted. No phone calls please.

Sentinel is proud to be an equal opportunity employer including disability and veterans. In accordance with Title VII and state regulations, all qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, marital status, pregnancy, genetics, disability, military, veteran status or any other basis protected by law.

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