Healthcare EDI (837/Encounter) Developer

Job#: 3026356

Job Description:

We are expanding our Encounter Development team and seeking a Healthcare EDI Developer to support enterprise encounter reporting through timely, accurate generation and submission of 837D X12 encounter files.

Hybrid (minimum of 3 days a week in our Okemos office). Will change to 4 days a week starting on 7/6/2026.

Job Responsibilities

Execute recurring operational tasks to generate encounter data files; monitor daily production jobs, troubleshoot issues, and drive error investigation through resolution.

Design, build, and maintain X12 EDI 837 encounter processing workflows.

Ensure solutions comply with HIPAA and X12 standards, including state- and client-specific implementation guides.

Perform unit, integration, and regression testing for EDI processes and related data flows.

Interpret and reconcile 999, 277, 835, and custom state/client response files associated with encounter submissions.

Develop and maintain data mappings between internal application data models and EDI segments/loops.

Implement corrective actions to remediate defects and reduce or eliminate repeat issues.

Partner with external clients and internal operational teams on new client implementations and changes to existing submissions.

Create and execute EDI test plans and provide clear, timely status updates to internal stakeholders and clients.

Experience and Qualifications

3+ years of relevant experience in the healthcare industry, Dental preferred

3+ years of experience in a data analyst role, preferably supporting healthcare EDI.

1+ years of experience developing post-adjudication X12 837 files (required).

1+ years of SQL experience.

Working knowledge of HIPAA X12 standards, specifically the 837 claim/encounter transaction.

Strong attention to detail with the ability to analyze client needs and accurately document processes.

Excellent analytical, troubleshooting, and communication skills.

Experience with IBM Sterling B2B Integrator is preferred.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide.