System Engineer​/Middleware Ops

About NDi

Network Designs, Inc. (NDi) is a leading Federal contractor that specializes in designing, developing, and delivering information technology and network solutions for government customers. Founded in 1985, NDi's firmly defined core values have driven all aspects of the business, which have been paramount to our company's success and the establishment of an enjoyable workplace atmosphere. At NDi, we believe that our people are the cornerstone of our success, and we value collaboration, career growth, and winning ideas.

The System Engineer / Middleware Ops will be responsible for managing legacy middleware and application services to ensure stable, reliable operations across integrated systems. This role focuses on operating and supporting Oracle Web Logic-hosted services, maintaining system configurations, troubleshooting operational issues, and supporting integrations across batch, API, and data‑exchange components. The System Engineer / Middleware Ops works closely with application, integration, and operations teams to maintain continuity of service.

• U.S. Citizenship required.
• Must be able to obtain and maintain a Public Trust clearance.
• This position is remote but may require occasional onsite meetings in McLean, VA.
• You can be based out of the following states: AZ, DC, FL, GA, OH, ME, MD, SC, TX, UT, VA, NC, OK, WV.

• Bachelor's Degree in Computer Science, Information Technology, or a related field.
• At least 8 years of experience in system engineering, middleware operations, or application support roles.
• Hands‑on experience supporting Oracle Web Logic application servers.
• Experience supporting legacy applications built with JSP, Spring, Apache Struts, and Hibernate.
• Familiarity with HL7 interfaces and data‑exchange workflows.
• Familiarity with IBM ODM in an operational or support context.
• Strong troubleshooting and problem‑solving skills.
• Strong attention to detail and operational discipline.
• Good communication skills and ability to work collaboratively with technical teams.
• Ability to manage multiple issues and priorities in a production environment.

• Experience supporting mission‑critical legacy systems.
• Experience coordinating with integration and application teams to resolve cross‑system issues.
• Experience working in regulated or enterprise environments.

• Operate and support middleware services hosted on Oracle Web Logic.
• Manage application configurations and runtime settings to ensure system stability.

• Support applications built using JSP, Spring, Apache Struts, and Hibernate.
• Assist with operational troubleshooting and remediation of application‑level issues.

• Support integrations across batch processing, API interactions, and data‑exchange components.
• Monitor and troubleshoot HL7‑based interfaces and data flows.

• Support operational aspects of systems utilizing IBM ODM.
• Coordinate with application teams to address runtime or configuration issues impacting rules execution.

• Investigate and resolve middleware, application, and integration issues.
• Perform root‑cause analysis and coordinate fixes with development and integration teams.

• Maintain environment‑specific configurations and support deployment readiness activities.
• Ensure consistency across development, test, and production environments.

• Document system configurations, operational procedures, and troubleshooting steps.
• Support maintenance of runbooks and operational reference materials.

• Identify recurring operational issues and recommend improvements to configurations or processes.
• Support efforts to improve reliability and maintainability of middleware services.

At NDi, we value our team and are committed to retaining top talent by offering competitive benefits and compensation packages. Our employee benefits package includes…