Mainframe Software Engineer

Apex Systems; Livonia (MI); Hybrid; USD 69,000 - 90,000; Full time

Job summary

Apex Systems is seeking an experienced Mainframe Software Engineer to support the Recall Suite of Applications and migrate workloads to Google Cloud Platform. You will develop, test, and maintain mainframe COBOL/JCL applications, provide production support, and collaborate with global teams to deliver critical functionality.

The role requires strong troubleshooting, on-call incident handling, and experience with z/OS Connect, DB2, and APIs.

Qualifications

• 7+ years of mainframe application development, design, analysis, and support.
• 2+ years of experience with z/OS Connect, SFTP, SOAP/REST APIs, and system-to-system integrations.
• Experience with source code management tools like Endeavor and GitHub.

Responsibilities

• Serve as a core member of FCSDTech/Service Quality team supporting Recall and Software FSA apps.
• Provide production support including on-call rotation and incident resolution.
• Develop and implement features to support compliance and regulatory requirements.
• Partner with Product Owners, Product Managers, and engineering teams to deliver critical functionality.
• Prioritize product backlog items to support enhancements and operations.
• Analyze, troubleshoot, and resolve defects while supporting backlog prioritization.
• Design, develop, test, and maintain mainframe COBOL and JCL apps.
• Participate in modernization efforts including cloud migration and system integration.
• Collaborate with internal teams, vendors, and stakeholders to ensure delivery.
• Conduct unit and integration testing to ensure quality and reliability.
• Support security reviews, audit activities, and operational health monitoring.

Skills

Mainframe Systems Development

COBOL (IMS)

JCL

CA7

DB2

z/OS Connect

SOAP/REST APIs

Education

Bachelor's degree in Computer Science / IT or related field

Tools

Endeavor

GitHub

Job description

Job#: 3045873

Job Description:

Hybrid On-Site Livonia MI - 4 Days

12+ Month Contract

$50-65/HR

Mainframe Software Engineer (FCSD / Service Quality)

Position Overview

We are seeking an experienced Mainframe Software Engineer to join the FCSD/Service Quality team. This role serves as the primary developer supporting the Recall Suite of Applications and Software FSA products, ensuring ongoing operational excellence while driving modernization initiatives. The ideal candidate will support production operations, provide on-call support, develop new features, resolve defects, and partner with business and technology stakeholders to advance the migration of applications to the Google Cloud Platform (GCP).

Key Responsibilities

• Serve as a core member of the FCSDTech/Service Quality team supporting Recall and Software FSA applications.
• Provide production support, including on-call rotation and incident resolution.
• Develop and implement mandatory features to support compliance, regulatory, and Software FSA requirements.
• Partner with Product Owners, Product Managers, and engineering teams to deliver business-critical functionality.
• Manage and prioritize product backlog items to support ongoing enhancements and operational needs.
• Analyze, troubleshoot, and resolve application defects while supporting backlog prioritization efforts.
• Design, develop, test, and maintain mainframe applications and integrations.
• Participate in modernization initiatives, including cloud migration and system integration efforts.
• Collaborate with internal teams, vendors, and business stakeholders to ensure successful product delivery.
• Conduct unit and integration testing to ensure application quality and reliability.
• Perform application support activities including security reviews, audit support, system maintenance, and operational health monitoring.

Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent experience).
• 7+ years of experience in mainframe application development, design, analysis, and support.
• Strong hands-on experience with:
  • COBOL (IMS)
  • JCL
  • CA7
  • DB2
  • COBOL Stored Procedures
  • Batch and real-time transaction processing
• 2+ years of experience implementing and supporting:
  • z/OS Connect
  • SFTP
  • SOAP APIs
  • REST APIs
  • System-to-system integrations and data exchange solutions
• Experience designing, developing, and maintaining Mainframe COBOL and JCL applications.
• Experience with source code management tools such as Endeavor and GitHub.
• Strong troubleshooting and problem-solving skills with the ability to quickly resolve production incidents.
• Experience supporting enterprise applications, including maintenance, security reviews, and audit compliance activities.
• Excellent verbal and written communication skills with the ability to work effectively across global teams.
• Ability to manage multiple priorities and work independently in a fast-paced environment.
• Experience with unit testing and integration testing methodologies.

Preferred Qualifications

• Experience with Google Cloud Platform (GCP).
• Experience with Google BigQuery.
• Experience supporting modernization and cloud migration initiatives.
• Familiarity with Agile product delivery processes and backlog management.

Required Skills

• Mainframe Systems Development
• COBOL (IMS)
• JCL
• CA7
• DB2
• z/OS Connect
• SOAP/REST APIs
• Production Support
• Application Modernization

Experience Level

• 6+ years of IT experience
• 4+ years of application development

Education

• Bachelor's Degree required

Why Join This Team?

This is an opportunity to work on critical enterprise applications that support customer and business operations while contributing to a strategic modernization effort leveraging cloud technologies and modern integration patterns. You'll play a key role in balancing operational excellence with long-term digital transformation initiatives.

EEO Employer

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at [email protected] or 844-463-6178.

2026 Everforth, Inc. All rights reserved.

Everforth Apex Systems is part of the Commercial Segment of Everforth, Inc.

NYSE: EFOR

4400 Cox Road

Suite 200

Glen Allen, Virginia 23060

Everforth Apex is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.