VistA/MUMPS Sustainment We are hiring for a VistA/MUMPS Sustainment Subject Matter Expert opportunity.

Role:

VistA/MUMPS Sustainment Subject Matter ExpertLocation:

RemotePosition:

1

Role Overview:

We are seeking an experienced VistA/MUMPS Sustainment Subject Matter Expert to provide technical leadership and production support for VistA based applications. The ideal candidate will have strong hands-on experience with VistA sustainment, MUMPS programming, VistA technical architecture, production issue resolution, and Tier 2/Tier 3 support. The candidate will work closely with development, testing, operations, release management, and government stakeholders to maintain reliable mission critical healthcare systems.

Key Responsibilities:

• Provide expert technical guidance for VistA and MUMPS based application sustainment
• Analyze, triage, and resolve VistA defects, incidents, service requests, and production issues
• Perform root cause analysis across application code, data, configuration, workflows, interfaces, and environments
• Provide Tier 2 and Tier 3 production support, including incident prioritization, escalation, workaround identification, and resolution planning
• Develop and review defect resolution plans covering remediation approach, code and data impacts, testing strategy, release considerations, and rollback planning
• Support testing, validation, release readiness, deployment planning, and post release monitoring
• Maintain technical documentation and update knowledge repositories based on system changes and issue resolutions
• 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
• Support data correction, table maintenance, and application configuration activities when required
• Identify opportunities to improve system reliability, operational efficiency, and production support processes

Required Skills:

• Significant hands-on experience with VistA application sustainment, operations, maintenance, or modernization
• Strong knowledge of MUMPS programming and VistA technical architecture
• Hands-on experience with VistA routines, globals, FileMan, data dictionaries, cross references, and package dependencies
• Proven experience diagnosing and resolving production defects in legacy or mission critical applications
• Experience with Tier 2 and Tier 3 production support
• Experience with incident triage, defect management, and structured software delivery processes
• Strong understanding of root cause analysis and production issue resolution
• Experience supporting application testing, validation, releases, and deployment activities
• Strong technical documentation and communication skills
• Ability to communicate complex technical issues clearly to technical and non technical stakeholders
• Strong analytical and problem solving skills

Preferred Skills:

• Experience supporting Department of Veterans Affairs systems
• Experience working with federal healthcare platforms
• Familiarity with VA product line delivery models and federal sustainment practices
• Experience with release management and Agile delivery models
• Knowledge of DevSecOps practices and compliance requirements
• Experience with application and infrastructure monitoring
• Experience preparing root cause analysis reports
• Experience with legacy system modernization initiatives
• Experience with data correction and table maintenance activities
• Experience providing technical mentoring and knowledge transfer

Education Requirement:

Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field preferred. Equivalent professional experience may be considered.

Our Commitment to

Diversity & Inclusion:

Did you know that Apexon has been Certified™ by Great Place To Work® in multiple global regions? Apexon is committed to being an equal opportunity employer and promoting diversity in the workplace. We take affirmative action to ensure equal employment opportunity for all qualified individuals. Apexon strictly prohibits discrimination and harassment of any kind and provides equal employment opportunities to employees and applicants without regard to gender, race, color, ethnicity or national origin, age, disability, religion, sexual orientation, gender identity or expression, veteran status, or any other characteristic protected by law.

Our Commitment to

Environment:

Actively contribute to Apexon's commitment to environmental responsibility by following sustainable practices and supporting ESG initiatives.

Our Perks and Benefits:

Our benefits and rewards program has been thoughtfully designed to recognize your skills and contributions, elevate your learning experience, and provide care and support for you and your loved ones.

We also offer:

• Health Insurance with Dental & Vision
• 401K Plan
• Life Insurance, STD & LTD

Paid Vacations & HolidaysJob Location :

Baltimore, Maryland, United States