Mainframe Consultant

CitiusTech; Columbia (SC); Hybrid; USD 110,000 - 140,000; Full time

Job summary

CitiusTech in Columbia, SC is seeking an experienced Mainframe Consultant with Healthcare Payer expertise (IMS, DB2, COBOL, JCL, CICS). The role focuses on legacy systems modernization, data migration, and integration, bridging business and technology to drive payer transformations.

You will analyze workflows across enrollment, eligibility, claims, and provider data, contribute to modernization roadmaps, and collaborate with architecture and data teams to deliver end-to-end solutions.

Qualifications

• Experience with legacy mainframe applications in healthcare payer domains.
• Strong knowledge of IMS/DB2 databases and COBOL/JCL/CICS.
• Ability to map legacy rules to modern data structures.

Responsibilities

• Serve as SME for Healthcare Payer processes and legacy mainframe apps.
• Analyze enrollment, eligibility, claims, and provider data workflows.
• Support modernization roadmaps and data migration efforts.
• Collaborate with architecture, data engineering, and business teams.

Skills

COBOL

JCL

CICS

IMS DB

IMS TM

DB2

VSAM

File-AID

SyncSort

Mainframe Utilities

Tools

File-AID

SyncSort

Mainframe Utilities

Job description

At CitiusTech, we constantly strive to solve the industry's greatest challenges with technology, creativity, and agility. With over 8,500 healthcare technology professionals worldwide, CitiusTech powers healthcare digital innovation, business transformation, and industry-wide convergence for over 140 organizations through next-generation technologies, solutions, and products. We aim to accelerate the transition to a human-first, sustainable, and digital healthcare ecosystem with the world's leading Healthcare and life sciences organizations and our partners.

Our vision:

To inspire new possibilities for the health ecosystem with technology and human ingenuity.

Job Title: Mainframe Consultant – Healthcare Payer

Location: Columbia, SC (Hybrid)

Role Overview

We are seeking an experienced Mainframe Consultant with deep expertise in Healthcare Payer systems, specializing in IMS, DB2, COBOL, JCL, CICS, and Mainframe-based core administrative platforms.

The ideal candidate will possess both functional and technical understanding of legacy healthcare ecosystems and play a key role in modernization, data migration, integration, and transformation initiatives.

This role requires the ability to bridge business and technology by interpreting complex healthcare payer processes, analyzing legacy data structures, documenting business rules, supporting modernization programs, and collaborating with business, architecture, and data engineering teams.

Key Responsibilities

• Serve as a subject matter expert for Healthcare Payer business processes and legacy mainframe applications.
• Analyze and interpret business workflows related to:
• Member Enrollment and Eligibility
• Provider Management
• Claims Processing and Adjudication
• Benefits and Plan Configuration
• Authorization and Utilization Management
• Care Management
• Billing and Premium Processing
• Customer Service Operations
• Collaborate with business stakeholders to document and validate business rules embedded within legacy systems.

Mainframe System Analysis

• Perform comprehensive analysis of legacy mainframe applications and associated databases.
• Understand end-to-end application architecture involving:
• IMS DB
• IMS TM
• DB2
• COBOL
• JCL
• CICS
• VSAM
• Sort Utilities
• Batch and Online Processing
• Identify system dependencies, interfaces, business logic, and data flows across applications.
• Support impact assessments and modernization roadmaps.

IMS & DB2 Functional and Technical Expertise

• Analyze IMS hierarchical database structures and interpret business relationships.
• Understand segment layouts, parent-child hierarchies, and complex data associations.
• Perform DB2 schema analysis and understand relational data models.
• Map business concepts to underlying IMS and DB2 data structures.
• Interpret legacy business rules embedded within programs, database schemas, and batch processes.
• Support extraction and transformation of IMS and DB2 data for cloud, analytics, and modernization programs.

Business Rule Discovery & Documentation

• Reverse engineer legacy applications to uncover business rules.
• Create detailed functional specifications and technical documentation.
• Document:
• Business rule mappings
• Source-to-target mappings
• Process flows
• Partner with data and business teams to validate findings.

Legacy Modernization & Transformation

• Support legacy modernization initiatives involving IMS and DB2 platforms.
• Assess migration readiness and modernization approaches.
• Provide recommendations for:
• Data modernization
• Cloud migration
• Data lake and lakehouse integration
• Semantic layer creation
• API enablement of legacy systems
• Collaborate with Data Architects and Engineering teams on modernization strategies.
• Participate in discovery workshops, application assessments, and client discussions.
• Present findings, recommendations, and solution approaches to business and technical stakeholders.
• Support proposal development, effort estimation, and modernization planning.
• Act as a trusted advisor for healthcare payer transformation initiatives.
• Communicate complex legacy application concepts to modern engineering and business teams.

Data Analysis & Mapping

• Conduct data profiling and system assessment activities.
• Perform source-to-target mapping across legacy and modern platforms.
• Define transformation rules and reconciliation approaches.
• Support migration and validation activities during modernization programs.
• Ensure business and data integrity are preserved during transition initiatives.
• Collaborate with Enterprise Architects and Data Architects to design future-state solutions.
• Provide insights into legacy application behavior and downstream impacts.
• Assist in defining integration patterns between mainframe systems and modern platforms.
• Support semantic modeling, data governance, and enterprise data architecture initiatives.

Required Technical Skills

Mainframe Technologies

• COBOL
• JCL
• CICS
• IMS DB
• IMS TM
• DB2
• VSAM
• File-AID
• SyncSort
• Mainframe Utilities

Database & Data Analysis

• IMS Hierarchical Database Structures
• DB2 Relational Database Design
• Data Mapping
• Data Profiling
• Data Modeling
• Source-to-Target Mapping
• Payer Operations
• Claims Adjudication
• Provider Data Management
• Benefits Administration
• Healthcare Data Models
• Regulatory and Compliance Awareness

Modernization Exposure

• Data Lake / Lakehouse Concepts
• API Integration Patterns
• Analytics Enablement Programs

Additional Requirements

• Strong analytical and investigative skills.
• Ability to interpret undocumented legacy applications and business logic.

Life at CitiusTech:

We focus on building highly motivated engineering teams and thought leaders with an entrepreneurial mindset, centered on our core values of Passion, Respect, Openness, Unity, and Depth (PROUD) of knowledge. Our success lies in creating a fun, transparent, non-hierarchical, diverse work culture that focuses on continuous learning and work-life balance. Rated by our employees as the Great Place to Work according to the Great Place to Work survey. We offer you a comprehensive set of benefits to ensure that you have a long and rewarding career with us.

Our EVP:

Be You Be Awesome is our EVP and it reflects our continuing efforts to create CitiusTech as a great place to work where our employees can thrive, both personally and professionally. It encompasses the unique benefits and opportunities we offer to support your growth, well-being, and success throughout your journey with us and beyond. Together with our clients, we are solving some of the greatest healthcare challenges and positively impacting human lives. Welcome to the world of Faster Growth, Higher Learning, and Stronger Impact.