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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Support Engineer - **Company:** Resolution Energy Services LLC - **Location:** Pasadena, TX, United States - **Salary:** $135,200.0 - $166,400.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Application Lifecycle Management, Software Applications, Computing Platforms, Microsoft Azure, CentOS, Software as a Service, Software Documentation, VMware ESX Servers, Information Management, Network Security, Linux Servers, Windows Servers, Windows PowerShell, Red Hat Enterprise Linux, Zero Trust Network Access, Scaled Agile Framework, Tanium Platform Expertise, Tenable Nessus, Patch Management - **Published:** July 1, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=e1ba15ba652158d8 ## About the Role Do you have experience in Windows Server administration?, Do you have a Associate's degree?, Candidates must be able to work on-site in Pasadena, TX in a refinery environment. A TWIC card is required to enter the facility. The ideal candidate will have hands-on experience supporting server based applications, Windows Server environments, infrastructure systems, and application lifecycle projects. Experience in OT, refinery, manufacturing, industrial, or other high security network environments is preferred., * Experience supporting and troubleshooting server-based on-premise and Azure applications in OT and business network environments. * Experience deploying, troubleshooting, and supporting Microsoft Windows servers. * Experience supporting application system platform deployments, upgrades, testing, implementation, or lifecycle projects. * Strong analytical and problem-solving skills. * Strong oral and written communication skills. * Ability to document systems infrastructure clearly and accurately. * Ability to quickly learn new technologies and platforms in support of project timelines. * Ability to work on-site in Pasadena, TX. Preferred experience: * Understanding of OT environments and high-security concepts, including the Purdue model, air-gapped networks, and zero trust. * Experience with Azure IaaS and SaaS. * Experience developing or maintaining PowerShell scripts for system maintenance or monitoring. * Experience with VMware ESXi and vCenter.Experience with VxRail.Experience deploying, troubleshooting, and supporting Linux servers, including RHEL, CentOS, or other distributions. * Experience maintaining infrastructure systems with responsibility for cybersecurity standards adherence, information management, or risk compliance. * Experience using tools such as Tenable Nessus, Tanium, or equivalent platforms. * Understanding of Agile methodologies or SAFe framework. * Experience with Microsoft Azure DevOps.Microsoft certification in Windows Server, Azure, or another related technology. * Associate degree or higher in technology or a related business discipline., Applicants must be legally authorized to work in the United States. We are unable to sponsor or transfer employment visas for this assignment. ## Description We are seeking to employ, on a full-time W-2 basis, an Application Support Engineer to support industrial application systems for a major oil and gas client in Pasadena, TX. This role supports PCN / OT application systems, meaning server based applications and infrastructure used in Process Control Network and Operational Technology environments. The position is responsible for deploying, maintaining, troubleshooting, and life-cycling application systems used in refinery operations. The selected candidate will support on-premise and Azure applications, Microsoft Windows servers, cybersecurity standards adherence, information and risk compliance, asset inventory and monitoring, software license management, and operating system / software patch management., * Deploy, maintain, troubleshoot, and lifecycle PCN / OT application systems. * Support server-based on-premise and Azure applications in OT and business network environments. * Deploy, troubleshoot, and support Microsoft Windows servers. * Provide design, testing, implementation, and support for application system platform deployment or lifecycle projects. * Participate in internally driven application platform projects and customer-facing technical projects. * Support cybersecurity standards adherence, information management requirements, and risk compliance activities. * Maintain asset inventory, monitoring information, application records, and system documentation. * Support software license management. * Support operating system and software patch management. ## Related Videos - [The Software Bug All Stars - and what we can learn from them](https://www.wearedevelopers.com/videos/423-the-software-bug-all-stars-and-what-we-can-learn-from-them) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Build Your Own Subscription-based Course Platform](https://www.wearedevelopers.com/videos/321-build-your-own-subscription-based-course-platform) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Data Science, ML & AI in the Oil and Gas Industry at NDT Global - Dr. Katja Träumner](https://www.wearedevelopers.com/videos/1308-data-science-ml-ai-in-the-oil-and-gas-industry-at-ndt-global-dr-katja-traumner) - [200 OK: Payment settled, resource delivered](https://www.wearedevelopers.com/videos/100063-200-ok-payment-settled-resource-delivered) ## Related Articles - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [A Guide to Green Tech and Green IT Careers](https://www.wearedevelopers.com/magazine/374-a-guide-to-green-tech-and-green-it-careers)