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Sentinel Technologies

IT services, cloud, and security solutions

IT Systems and Infrastructure Manager

Full-TimeDeadline 6/4/27
$90k - $125k
Mid
Chicago, IL, USA
HybridOn-site work is required four days per week at the Chicago client location.
IT OperationsSystem Administration
No H1B Sponsorship

About the job

Requirements
  • Strong expertise in cybersecurity, email security, and compliance frameworks.
  • Deep knowledge of Microsoft 365, Intune, Autopilot, and Windows endpoint management.
  • Proven ability to manage network infrastructure, incident response, and outage recovery.
  • Experience supporting enterprise environments across office, plant, and executive functions.
  • Proficiency in identity and access management, including Active Directory, multi-factor authentication, and user lifecycle management.
  • Ability to lead vendor relationships and coordinate with external partners such as Cisco, AT&T, and Sentinel.
  • Process improvement capability, including automation, documentation, and standardization.
  • Troubleshooting skills and capacity to manage high-volume IT support operations.
  • Demonstrated experience in IT roadmap development and execution to support organizational growth and scalability.
  • A valid driver’s license and proof of vehicle insurance are required.
  • Legally authorized to work in the United States without sponsorship.
Responsibilities
  • Lead execution across cybersecurity, infrastructure, endpoint management, and enterprise IT operations.
  • Drive initiatives including email security, Intune and Autopilot deployments, Windows 11 migration, and incident response readiness.
  • Ensure network reliability, outage recovery, and failover planning.
  • Partner with key vendors.
  • Oversee identity management, onboarding and offboarding, and cross-functional support across office, plant, and executive teams.
  • Promote continuous improvement through automation, documentation, user training, and standardized processes.
  • Monitor operational performance and high-volume support.
  • Ensure secure, scalable, and efficient IT operations aligned with business goals.
Desired Qualifications
  • Relevant IT certifications, such as Microsoft, Cisco, CompTIA, or cybersecurity-focused credentials.

About the company

Sentinel Technologies provides IT services and solutions to businesses of all sizes, focusing on end-to-end IT infrastructure and support. It offers 24/7 managed services via a Network Operations Center (NOC) and a Security Operations Center (SOC) for monitoring and managing networks, servers, and applications; CloudSelect ITaaS to modernize IT; Fortis cybersecurity services; IT consulting; and technology resale through partnerships with Cisco, Dell EMC, and Microsoft. The company differentiates itself with long-tenured leadership, an integrated service model that combines security, cloud, and consulting, and a nationwide and international client base. Its goal is to help clients improve operational efficiency and business performance by delivering scalable IT solutions that align technology with business needs.

Company Size

501-1,000

Company Stage

Seed

Total Funding

$400K

Headquarters

Downers Grove, Illinois

Founded

2009

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What believers are saying

  • The July 2025 MSP 501 ranking supports stronger market visibility and sales credibility.
  • CRN's April 2026 interview cites growing security demand and refreshed detection-response offerings.
  • OnDefend BAS services and Zscaler authorization deepen higher-margin cybersecurity attach opportunities immediately.

What critics are saying

  • Cisco 360 certification required substantial investment, pressuring margins through 2026.
  • Acquiring HPT creates integration risk across culture, delivery standards, and customer retention in 2026.
  • Heavy dependence on vendor ecosystems like Cisco, Google, Zscaler, and Microsoft constrains differentiation.

What makes Sentinel Technologies unique

  • Sentinel’s 1982 leadership continuity gives clients unusually stable account ownership.
  • Zscaler MSSP authorization, earned December 2023, strengthens its managed-security credibility.
  • The 2025 High Performance Technologies acquisition expands geographic reach and lifecycle-services depth.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Disability Insurance
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Family Planning Benefits
  • Unlimited Paid Time Off
  • Paid Vacation
  • Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
REJournals
Oct 7th, 2026
Stream Realty Partners negotiates 63,409-square-foot office lease in Lisle.

Stream Realty Partners negotiates 63,409-square-foot office lease in Lisle. October 7, 2026 Stream Realty Partners represented Sentinel Technologies in a 63,409-square-foot full-building lease at Corporetum Office Campus X at 410 Warrenville Road in Lisle, Illinois. Sentinel will occupy the entire four-story building for its headquarters, housing its office, research and development, and technology lab functions under one roof. The company is expected to relocate in the first quarter of 2027 from its current headquarters in Downers Grove, approximately one mile away. The move marks Sentinel's first headquarters relocation in more than 30 years. Stream Managing Directors Jordan Decker and Brian Duffy represented Sentinel in the transaction. David Florent and Brent Jacob of Colliers represented the landlord, Napleton Automotive Group. Located in Chicago's East/West Corridor along Interstate 88, Corporetum Office Campus X provides prominent visibility and signage opportunities. As part of the new lease, the building will undergo significant capital improvements to support Sentinel's operations and long-term occupancy.

Business Wire
Apr 16th, 2026
Horizon3.ai scales partner ecosystem with 32% of Q4 bookings sourced through channel

Horizon3.ai held its second annual Global Partner Conference in Orlando, Florida, bringing together over 100 partners and signalling expanded investment in its channel ecosystem. The AI-native security company reported that 32% of Q4 bookings came through partners, with approximately 70% of customers supported by managed security service providers. The company launched a Partner Advisory Board and is implementing new programmes to strengthen partner alignment and execution. Key partners attending include NCC Group, Optiv, Thrive, CDW and Sentinel Technologies. Horizon3.ai recently reported 102% year-over-year ARR growth, with over 5,200 organisations globally using its NodeZero platform to identify exploitable attack paths. The company was recognised by Fast Company as one of the World's Most Innovative Companies of 2026.

Sentinel
Apr 9th, 2026
Sentinel Technologies acquires High Performance Technologies to expand IT capabilities

Sentinel Technologies has acquired High Performance Technologies (HPT), a Southeastern-based IT solutions provider, to expand its service offerings and geographic reach. The acquisition combines Sentinel's scale and resources with HPT's technical expertise and agile delivery model. HPT, founded in 2002, specialises in customised IT lifecycle solutions across traditional, emerging and cloud technologies. The company's team will continue serving existing markets whilst gaining access to Sentinel's broader portfolio and next-generation technologies. Founded in 1982, Sentinel Technologies provides business technology services, cybersecurity and IT support. The acquisition advances Sentinel's growth strategy whilst maintaining both companies' customer-first approach. Financial terms were not disclosed.

Pamarco
Jul 18th, 2025
Sentinel's Cutting-Edge iPro Ink Management System Recognized with 2025 Pinnacle Award

CARROLLTON, TX - July 15, 2025 - Sentinel, a global leader in automated ink management solutions, is proud to announce it has been awarded a 2025 Pinnacle Award, recognizing the company's outstanding innovation for its iPro Ink Management System in the Technology category.

Sentinel
Mar 13th, 2025
Sentinel Wins Illumio 2025 Global Partner Award for Managed Service Provider of the Year

Illumio's Global Partner Awards honor exceptional partners from the past fiscal year who have gone above and beyond to cultivate strong, mutually beneficial relationships.