Senior Application Architect

Job Description

Sr. Application Architect

We're looking for a Sr. Application Architect with a background in Systems and Infrastructure.

What You'll Do

• Manage and maintain enterprise server infrastructure, ensuring systems remain secure, available, and optimized for business operations.
• Monitor network performance across LAN, WAN, VPN, wireless, and other connectivity environments while proactively identifying and resolving performance issues.
• Install, configure, test, and deploy infrastructure updates, security patches, hardware replacements, and system enhancements.
• Troubleshoot complex server, network, connectivity, and infrastructure-related issues while providing timely technical support to internal users.
• Administer user accounts, permissions, identity management, and security controls while supporting company cybersecurity initiatives and best practices.
• Maintain backup, disaster recovery, and business continuity processes to ensure critical systems and data remain protected.
• Partner with technology vendors, telecommunications providers, and external support teams to maintain infrastructure services and resolve escalated technical issues.
• Create and maintain technical documentation, system configurations, hardware inventories, network diagrams, and operational procedures.

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What We're Looking For

• Strong professional experience in enterprise application engineering, systems administration, application infrastructure, or a comparable technical consulting or engineering capacity.
• Hands-on expertise configuring, administering, and troubleshooting Windows Server environments and application hosting platforms such as Microsoft IIS or Apache.
• Practical knowledge of Linux environments, including system administration, configuration, troubleshooting, and familiarity with command-line utilities.
• Experience supporting business-critical applications across complex technology environments, with an understanding of how underlying infrastructure services affect application availability and performance.
• Working knowledge of cloud technologies, preferably Microsoft Azure and/or AWS, including application hosting, resource configuration, networking, identity, and hybrid environment considerations.
• Solid understanding of networking and infrastructure fundamentals, including DNS, TCP/IP, Active Directory, authentication, routing, and common connectivity or security dependencies.
• Familiarity with application integration technologies, REST APIs, data exchange processes, and automation or scripting using Python, PowerShell, or comparable tools.
• Experience supporting production application deployments, release management, change controls, and established CI/CD workflows.
• Exposure to database technologies and the ability to investigate application issues involving database connectivity, configuration, performance, or data availability.

Join us at Lumen Resources, where your expertise will contribute to our growth, and you'll have the opportunity to have fun and thrive alongside a dynamic group of professionals. Apply today and become a part of our exciting journey!

Lumen Resources:

At Lumen Resources you will be partnering with trained recruiters who will guide you through discovering a brighter future. Our recruiters are concise and efficient in all interactions, hold exceptional communication, and will support resume writing and interview preparation, so you can land any position you want!

If this role doesn't align with what you are looking for, we have a host of clients with roles that could be a match. Feel free to reach out to connect with one of our team members at

Lumen Resources is an Equal Opportunity Employer. Don't hesitate to get in touch with our team for more information.