Remote Knowledge Graph Software Engineer Jobs in Missouri

MEDHOST, a division of Harris, is seeking a Senior Software Engineer, IBM i / RPG, to design, develop, modernize, test, and support enterprise healthcare software solutions on the IBM i platform, also known as AS/400 or iSeries.

This role requires recent hands on experience developing and supporting RPG applications in a production IBM i environment. Candidates must have personally written, modified, debugged, tested, and supported ILE RPG / RPGLE code. RPG listed only as a general skill, legacy exposure, training topic, or resume keyword will not meet the minimum requirements for this role.

The successful candidate will own complex product enhancements, resolve production issues, contribute to modernization initiatives, mentor developers, and help improve the reliability, maintainability, and scalability of MEDHOST's healthcare software products.

Candidates may be asked to deliver a short technical presentation during the interview process. Experience supporting long lived commercial software products or enterprise production systems is strongly preferred.

This remote role welcomes candidates anywhere in the US. Candidates must be able to collaborate during core Central Time business hours.

Salary:

110K - 145K

What your impact will be:

• Design, construct, test, debug, and support technical solutions on the IBM i platform.
• Develop and maintain applications using ILE RPG / RPGLE, CL, embedded SQL, Db2 for i, SQL procedures, and user-defined functions.
• Own complex product enhancements, defect resolution, production issues, and assigned project components.
• Analyze existing IBM i applications and recommend practical improvements to reliability, maintainability, performance, and supportability.
• Contribute to modernization efforts by improving legacy RPG code structure, reducing technical debt, and supporting more modular, SQL-driven application design.
• Apply engineering standards for code quality, testing, configuration management, documentation, security, and release readiness.
• Provide accurate effort estimates and deliver assigned work within agreed schedules.
• Troubleshoot and resolve high-complexity application, data, batch, integration, and performance issues.
• Participate in architecture, design, and technical review discussions for IBM i applications and related integrations.
• Identify system, application, and engineering process deficiencies and recommend improvements.
• Help prioritize development tasks for junior and mid-level staff.
• Mentor other developers through technical guidance, design review, troubleshooting support, and code quality feedback.
• Collaborate with product owners, QA, DBAs, architects, support, implementation, and other engineering teams to deliver reliable product changes.
• Maintain the effectiveness and implementation of the MEDHOST Quality Management System and meet applicable regulatory requirements as needed.
• Perform other duties as required to support organizational and product needs.

Candidate Screening Expectations

During the interview process, candidates may be asked to discuss a recent RPG/RPGLE enhancement they personally delivered, including the business purpose, technical components involved, testing approach, and deployment process.

Candidates should be able to clearly explain their direct contributions to IBM i and RPG development projects.

What we are looking for:

• 7+ years of commercial software or enterprise application development experience.
• 5+ years of hands-on IBM i development experience.
• Recent professional experience developing, maintaining, debugging, and supporting production RPG applications on IBM i, including RPG/RPGLE work within the last 3 years.
• Strong working knowledge of ILE RPG / RPGLE, including fixed-format and/or free-form RPG, CL, embedded SQL, Db2 for i, physical files, logical files, source physical files, service programs, batch processing, and IBM i job troubleshooting.
• Strong SQL skills, including Db2 for i queries, joins, stored procedures, SQL functions, data analysis, and performance troubleshooting.
• Experience owning complex enhancements, defects, production issues, or modernization work in a long-lived product or enterprise system.
• Experience participating in sprint planning, backlog refinement, story estimation, daily coordination, code review, and iterative software delivery.
• Experience with software version control, change management, controlled promotion, and release processes.
• Understanding of testing practices, including unit, system, integration, regression, and performance testing.
• Strong analytical, problem-solving, communication, and technical writing skills.
• Demonstrated ability to mentor, coach, and guide other developers.
• Ability to work independently, manage priorities, communicate risks early, and deliver within agreed timelines.
• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related field preferred.
• Equivalent professional experience developing and supporting enterprise software solutions will be considered.

What would make you stand out:

• Experience modernizing legacy RPG applications.
• Experience with free-form RPG and SQL-first development patterns.
• Experience with modular IBM i design, including service programs, procedures, modules, reusable business logic, or layered application design.
• Experience with RDi, Aldon, Git, Jira, Confluence, or similar development and delivery tools.
• Experience with healthcare software, financial systems, billing, EHR, clinical workflows, regulated software, or other business-critical production environments.
• Experience with APIs, HL7, interface engines, web services, JSON, XML, or cross-platform integrations.
• Experience applying design patterns, SOLID principles, MVC, DAO, service-layer design, or similar architecture concepts.
• Experience improving performance in Db2 for i applications.
• Experience creating technical documentation, design notes, troubleshooting guides, or knowledge-transfer materials.
• Experience with long-lived commercial software products or enterprise production systems.

What we can offer:

• 3 weeks' vacation and 5 personal days
• Comprehensive Medical, Dental, and Vision benefits starting from your first day of employment
• Employee stock ownership and RRSP/401k matching programs
• Lifestyle rewards
• Remote work and more!

About MEDHOST:

MEDHOST, founded in 1984 and headquartered in Franklin, Tennessee, is a leading provider of healthcare information technology solutions. Serving over 1,000 healthcare facilities nationwide, MEDHOST offers a comprehensive suite of products, including electronic health records (EHR), financial management systems, and patient engagement platforms. Their mission is to empower healthcare organizations to enhance patient care and improve business operations through innovative, user-friendly solutions. In January 2024, MEDHOST was acquired by N. Harris Computer Corporation, further strengthening its position in the healthcare IT industry.

About Harris:

Harris is a leading provider of mission critical software to the public sector in North America. As a wholly owned subsidiary of Constellation Software Inc. ("CSI", symbol CSU on the TSX), Harris has become the cornerstone for CSI's investment in utility, local government, school districts, public safety, and healthcare software verticals. Our success has been realized through investments in our proprietary software and market expertise. This focus, combined with acquiring businesses that build upon or complement our offerings, has helped drive our success. Harris will continue to growth through reinvestment - both in the people and products that we offer and making investments in acquiring new businesses.

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