VistA/MUMPS Sustainment Subject Matter Expert

• Provide expert guidance on VistA and MUMPS-based application sustainment.
• Analyze, triage, and resolve VistA defects, incidents, service requests, and production issues.
• Perform root cause analysis across code, data, configuration, workflow, interface, and environment-related issues.
• Support Tier 2 and Tier 3 production support, including incident prioritization, escalation, workaround identification, and resolution planning.
• Develop and review defect resolution plans, including remediation approach, code/data impacts, testing strategy, release considerations, and rollback planning.
• Support testing, validation, release readiness, deployment planning, documentation updates, and post-release monitoring.
• Collaborate with developers, testers, product owners, release managers, operations teams, and government stakeholders.
• Recommend improvements to sustainment processes, defect prevention, monitoring, backlog management, and knowledge transfer. Required Qualifications
• Significant hands-on experience with VistA sustainment, operations, maintenance, or modernization.
• Strong knowledge of MUMPS programming and VistA technical architecture.
• Experience with VistA routines, globals, FileMan, data dictionaries, cross-references, and package dependencies.
• Proven ability to diagnose and resolve production defects in legacy or mission-critical systems.
• Experience with Tier 2/Tier 3 support, ticket triage, defect management, and structured software delivery processes.
• Ability to communicate complex technical issues clearly to both technical and non-technical audiences.

• Prior experience supporting Department of Veterans Affairs systems or federal healthcare platforms.
• Familiarity with VA product-line delivery models, federal sustainment practices, release management, Agile, DevSecOps, and compliance requirements.
• Experience with monitoring, root cause analysis reporting, data correction, table maintenance, or legacy system modernization.

Infowave Systems is an equal opportunity employer that is committed to diversity and inclusion in the workplace.