Systems & Network Engineer, Senior

About the role

This is a hands-on, high-impact role supporting a complex enterprise infrastructure across virtualization, networking, storage, security, and Microsoft cloud technologies. This individual will take full ownership of the environment, serve as a key escalation point for the Director, and play a critical role in mentoring junior team members.

Responsibilities

• Enterprise virtualization: VMware and/or Hyper-V
• HPE storage systems and Simplivity
• Cisco ecosystem: Meraki, UCS, Wireless APs, and Cisco ISE
• Veeam Backup & Replication for enterprise data protection
• Microsoft technologies: SQL Server, Entra ID (Azure AD), Intune, Defender, and SharePoint Online
• Active Directory administration, including Group Policy management and hygiene
• Security and compliance frameworks, including NIST 800-171 (highly preferred)

Qualifications

• Hands-on experience with VMware and/or Hyper-V
• Experience with HPE storage systems and Simplivity (preferred)
• Strong Cisco networking experience (Meraki, UCS, WAPs, Cisco ISE)
• Experience with Veeam Backup & Replication
• Microsoft SQL Server administration, maintenance, and performance tuning
• Strong knowledge of Active Directory and Group Policy management
• Experience with Entra ID (Azure AD)
• Experience with Microsoft Intune and Defender
• Experience with Microsoft Intune, Defender, and Purview (preferably within a GCC-High environment)
• Familiarity with NIST 800-171 security controls and compliance requirements (strong plus)
• Experience supporting specialized assets / operational technology (OT) in a manufacturing environment, particularly for Department of Defense (DoD) contracts (highly desirable)
• SharePoint Online administration experience
• Strong troubleshooting and problem-solving skills
• Ability to work independently and take ownership of tasks
• CCNA certification or equivalent networking experience (preferred)
• Familiarity with security frameworks, compliance, or regulated environments

Benefits

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

Pay

Competitive pay.

Schedule

Full-time onsite position working 4 - 10 hour days (Monday through Thursday) based in Mesa, Arizona.

What You Get

We offer 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. If you are MOTIVATED… you can make IT happen at Sentinel. Our commitment to our employees is to create a work environment that encourages creativity, an entrepreneurial spirit, fosters growth through certification and hands-on training, and values a team-oriented culture with rewards based on impact!