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# Application Support Engineer

- **Company:** Cenergy International Services, Inc.
- **Location:** Pasadena, TX, United States
- **Salary:** $145,600.0 - $166,400.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Microsoft Azure, CentOS, Software as a Service, Cyber Security, System Configuration, Linux, VMware ESX Servers, Monitoring of Systems, Infrastructure as a Service (IaaS), Linux Servers, Windows Servers, Windows PowerShell, Red Hat Enterprise Linux, Zero Trust Network Access, Security Software, Server Administration, Service Pack, Software Deployment, Virtualization Technology, Software Vulnerability Management, Software Licensing, Software Troubleshooting, Tanium Platform Expertise, Information Technology, Vcenter, Tenable Nessus, Vmware
- **Published:** October 4, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=41c331d2dda68109

## About the Role

The ideal candidate will have strong experience with Microsoft Windows Server, application support, OT/industrial environments, Azure, VMware, Linux, PowerShell, and cybersecurity. This role requires excellent troubleshooting, analytical, communication, and documentation skills., * Experience supporting and troubleshooting server-based applications in OT and business network environments.

 * Hands-on experience administering and supporting Microsoft Windows Server.
 * Experience with application deployment, testing, implementation, upgrades, migrations, and lifecycle management.
 * Experience supporting OT applications or industrial technology environments.
 * Strong troubleshooting, analytical, and problem-solving skills.
 * Excellent verbal and written communication skills.
 * Experience creating and maintaining technical and infrastructure documentation.
 * Understanding of industrial cybersecurity and secure OT environments.

Preferred Qualifications

 * Experience with Microsoft Azure IaaS and SaaS.
 * PowerShell scripting and automation experience.
 * VMware ESXi and vCenter experience; VxRail is a plus.
 * Linux/RHEL/CentOS server administration experience.
 * Knowledge of the Purdue Model, air-gapped networks, and Zero Trust architecture.
 * Experience with Tenable Nessus, Tanium, or similar cybersecurity tools.
 * Experience with asset management, software licensing, vulnerability management, patching, and risk compliance.
 * Familiarity with Agile, SAFe, and Azure DevOps (ADO).
 * Microsoft certifications in Windows Server, Azure, or related technologies are a plus.

Education

 * Associate degree or higher in Information Technology, Computer Science, Engineering, or a related technical field., * How many years of hands-on experience do you have supporting and troubleshooting Microsoft Windows Server and server-based applications? Please describe your recent responsibilities.
 * Do you have experience supporting OT/PCN or industrial applications and infrastructure? Please describe the OT environment and applications/systems you supported.
 * Please describe your hands-on experience with Microsoft Azure, VMware ESXi/vCenter, PowerShell, Linux, and cybersecurity/vulnerability management tools such as Tenable Nessus or Tanium. Which of these have you worked with directly?

## Description

* Support server-based applications across on-premises, OT, business network, and Microsoft Azure environments.
 * Support application upgrades, migrations, testing, implementations, and lifecycle projects.
 * Administer and troubleshoot Microsoft Windows Server environments.
 * Monitor system performance, availability, and application functionality.
 * Manage operating system and software patches, updates, licenses, and system assets.
 * Support cybersecurity, vulnerability management, risk compliance, and information governance requirements.
 * Troubleshoot application and infrastructure issues and coordinate resolution with technical teams.
 * Maintain accurate technical documentation, system configurations, procedures, and support records.
 * Support applications and infrastructure within secure OT/industrial environments.
 * Develop and maintain PowerShell scripts for automation, monitoring, and system maintenance.
 * Support virtualized environments using VMware ESXi and vCenter; VxRail experience is a plus.
 * Support Linux servers, including RHEL, CentOS, or similar distributions.
 * Work with security and compliance tools such as Tenable Nessus, Tanium, or equivalent platforms.
 * Participate in application and infrastructure projects using Agile/SAFe methodologies and Azure DevOps (ADO).
 * Learn new technologies and adapt to changing project and operational requirements.