Mainframe Developer Job Columbia South Carolina USA,Software Development

Location: Columbia

Back Mainframe Developer
Application Development Columbia , South Carolina Contract 100% Remote Oct 29, 2026

Mainframe Developer Job at a Glance

Title: Mainframe Developer
Location: Columbia, SC - Remote
Contract: W2 only
Pay: $ 50/hour + optional medical, dental, vision, 401(k) match

Overview

Join a fast-paced, customer-focused application development environment supporting complex mainframe systems. This role focuses on analysis, design, development, testing, and troubleshooting of adjudication-related mainframe applications in a hybrid work setting. Candidates should be comfortable supporting time-sensitive production needs, including potential on-call responsibilities after an initial ramp-up period.

Key Responsibilities

Analyze system specifications and translate requirements into technical solutions
Design, develop, enhance, and maintain complex mainframe application components
Create detailed program specifications and technical documentation
Perform unit/system testing, debug issues, and validate results using test data/files
Troubleshoot production issues and implement fixes and enhancements
Coordinate and support application implementations and changes
Collaborate with stakeholders to define scope, objectives, and solution approach

Required Skills

Mainframe application development experience
COBOL development
JCL
TSO/ISPF
APS
Endevor (NDVR)
Systems testing, debugging, and production support for complex applications

Education

Bachelor’s degree in Computer Science, Information Technology, or a related field,
or equivalent combination of education and relevant experience

Preferred Skills

DB2
IMS
Experience supporting applications requiring time-sensitive production response

Why Should I Apply?

This is an opportunity to work on complex, high-impact mainframe applications in a collaborative hybrid environment with meaningful ownership across the full development lifecycle.

About CEI:

As a trusted technology partner, CEI delivers solutions that help our customers transform their business and achieve meaningful results. From strategy and custom application development through application management - our technology and digital experience services are tailored to meet each unique need of our customers. Our staffing solutions bring specialized skills to complement our customers' workforce and project requirements.
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