• Provide senior-level engineering support for enterprise procurement and financial applications (e.g., PRISM, Oracle-based systems). • Support application sustainment, configuration, patching, upgrades, and troubleshooting across middleware and application tiers. • Assist with workflows, interfaces, and integrations between procurement, financial, and enterprise systems. • Develop and maintain system architecture diagrams, engineering documentation, and operational runbooks. • Administer and support **IBM WebSphere Application Server (WAS)** and **IBM MQ** across enterprise environments. • Deploy, configure, and maintain WebSphere and MQ workloads on **Linux-based platforms**, including Azure-hosted environments. • Configure clustering, failover, performance tuning, and secure messaging. • Support automation of middleware configuration and deployments using scripting or configuration management tools (e.g., Ansible, Terraform, shell scripting). • Support PRISM and similar enterprise systems across **AIX and Linux platforms**. • Perform system tuning, patching, remediation, and environment troubleshooting. • Lead or contribute to efforts supporting migration of enterprise middleware and applications from **AIX to Linux-based cloud environments** (e.g., lift-and-shift or phased modernization). • Identify and document migration risks, dependencies, and operational impacts; contribute to migration planning, runbooks, and post-migration stabilization. • Support Oracle-based enterprise applications and databases integrated with middleware platforms. • Develop and maintain **PL/SQL packages, database automation, and integrations** supporting procurement and financial workflows. • Support Oracle APEX-based user interfaces, dashboards, and APIs as needed. • Collaborate with database and functional teams to ensure reliable integration with Oracle Financial systems. • Support deployment and operation of enterprise middleware and applications in **Azure-hosted Linux environments**. • Collaborate with cloud, DevOps, and security teams on hybrid hosting strategies spanning USDA data centers and commercial cloud platforms. • Support CI/CD pipelines, infrastructure automation, and configuration management related to middleware and application deployments. • Ensure systems comply with **FedRAMP, FISMA, NIST 800-53**, and USDA OCIO security requirements. • Support ATO processes, security assessments, remediation activities, and audits. • Implement and support secure integration patterns (TLS, certificates, LDAP/SSO, RBAC). • Collaborate with OCP, OCIO, developers, architects, security teams, and operations staff. • Provide senior-level engineering recommendations, risk assessments, diagrams, SOPs, and onboarding documentation. • Participate in Agile ceremonies, sprint planning, and change control processes.