Windows Application & Custom Engineer

C5MI is not your typical consulting firm. We are a high-performance team of SAP and supply chain experts who solve complex, mission critical challenges for organizations that cannot afford failure. We hire consultants who thrive in complexity, move fast, take ownership, and deliver under pressure. At C5MI, you will not be siloed or stuck in theory. You will be hands on, client facing, and directly influencing outcomes that matter. Our culture rewards initiative, accountability, and continuous growth. This is a place where your expertise is valued, your work is meaningful, and your performance truly matters. If you’re energized by learning through real-world challenges, collaborating with top-tier talent, and expanding your capabilities every day, C5MI is where strong consultants level up. Position Summary: The Windows Server & Custom Application Engineer is responsible for engineering, integrating, maintaining, and supporting Windows-based infrastructure components and custom applications that enable the DLA SAP Security program. The position serves as the technical liaison between SAP Security, Enterprise Infrastructure, Cybersecurity, and Application Development teams to ensure security-related applications are reliable, secure, and compliant with Department of Defense (DoD) and DLA requirements. The role designs, develops, and implements security solutions to safeguard digital assets and business operations, and integrates security controls into systems, applications, and processes to protect against cyber threats, unauthorized access, and data breaches. Essential Functions & Responsibilities: Windows Server Infrastructure : Designs, configures, and maintains Windows Server environments supporting SAP Security applications. Engineers secure and resilient Windows solutions in accordance with DLA security standards. Coordinates server provisioning, upgrades, and maintenance activities with Enterprise Infrastructure teams. Evaluates and recommends infrastructure improvements that enhance application availability and performance. Supports high availability and disaster recovery planning for Windows-based security applications. Custom Application Support : Supports the deployment, configuration, maintenance, and troubleshooting of Windows-hosted custom applications supporting SAP Security operations. Coordinates application releases and production deployments with development teams. Configures IIS web servers, Windows services, scheduled tasks, and application environments. Troubleshoots application performance, connectivity, and authentication issues. Supports software lifecycle management, including testing, upgrades, and configuration management. Identity & Authentication Integration : Supports Active Directory integrations for SAP Security applications. Configures and maintains authentication services, service accounts, and directory integrations. Supports Microsoft Entra ID synchronization and identity…