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Ensono Tech Stack

Hybrid IT managed services spanning mainframe, cloud, and modernization

IT Services and IT Consulting Downers Grove, Illinois 1,001–5,000 employees Founded 1969 Privately Held

Ensono operates across mainframe, cloud, and hybrid infrastructure—a stack that reflects their position serving enterprises locked into legacy systems (z/OS, CICS, IBM Z) while pushing toward modern platforms (AWS, Azure, Terraform). Active hiring in engineering and operations, combined with projects around z/OS upgrades, disaster recovery, and client cloud migrations, shows a services org scaling to manage the complexity of multi-platform transformations. Leadership gaps in transformation and program management suggest they're growing faster than their internal ops capacity can absorb.

Tech Stack 192 technologies

Core StackAWS ServiceNow Azure Data Factory Snowflake Ansible Jenkins Python Workday VMware CICS ATLAS z/OS Microsoft Office IBM BMC Helix VMware Aria Operations ITIL Git REXX Bash IBM z/OS Azure IBM Z JSON REST API SQL XML Windows Red Hat Enterprise Linux Chef+160 more

AdoptingAWS Terraform Dell IBM

What Ensono Is Building

◆Challenges

Upgrading legacy mainframe systems
Disaster recovery planning
Security vulnerabilities in code
Capacity planning
Database performance tuning
Maintaining audit compliance
Ensuring timely upgrades before end of support
Improving internal workflows
Modernizing it infrastructure
Mainframe modernization

▲Active Projects

Disaster recovery plans
New client onboarding
Client cloud transformation
Whitespace growth
Zos operating system upgrades v2.5 and v3.1
Client deploy projects
Isv product upgrades for zos compatibility
Customer migration
Api integration with servicenow
Embedding ai models into production

Hiring Activity

Steady170 roles · 70 in 30d

Department

Engineering

89

Ops

22

Sales

10

Support

8

Data

7

Finance

7

HR

5

Marketing

5

Seniority

Senior

98

Mid

18

Intern

13

Manager

12

Director

9

VP

5

Junior

3

Lead

2

Notable leadership hires: Transformation Director, Program Director, Digital Lead, Marketing Director, Practice Director

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About Ensono

Ensono is a managed service provider and technology consulting firm based in Downers Grove, Illinois, founded in 1969. They serve enterprise clients navigating hybrid IT environments, offering advisory services, mainframe and application modernization, cloud migration, and 24/7 managed support across AWS, Azure, Google Cloud, and on-premises infrastructure. The company operates across 1,001–5,000 employees globally with teams in the United States, India, Poland, and the United Kingdom. Core service areas include disaster recovery planning, application strategy, infrastructure modernization, and cost optimization for mission-critical workloads. They hold Microsoft Datacenter Transformation Partner of the Year recognition and maintain certified expertise across major cloud platforms.

HeadquartersDowners Grove, Illinois

Company Size1,001–5,000 employees

Founded1969

Hiring MarketsIndia, United States, Poland, United Kingdom

Frequently Asked Questions

What platforms does Ensono specialize in?

Ensono delivers services across mainframe (z/OS, CICS, IBM Z), AWS, Azure, Google Cloud, and hybrid environments. Their stack includes IBM Helix, VMware, ServiceNow, and Snowflake for modern infrastructure components.