Mainframe Developer

Job#: 3054017

Job Description:

Senior Mainframe Applications Developer

Location: Henrico, Virginia (Remote)

Alternate Location: Richmond, VA

Role Overview

We are seeking a Senior Mainframe Applications Developer to join an experienced team supporting mission-critical systems. This position is a unique opportunity to work directly with a senior subject matter expert prior to their retirement and participate in a structured knowledge transfer process. The selected candidate will assume ownership of a critical suite of applications while helping support ongoing modernization initiatives and mainframe-to-modern-platform migrations. This is a long-term engagement with a planned duration of multiple years.

Key Responsibilities

• Maintain, enhance, and troubleshoot enterprise mainframe applications on IBM z/OS.
• Analyze and modify existing COBOL applications and legacy codebases.
• Troubleshoot complex production issues to identify the root cause.
• Participate in application modernization and migration initiatives.
• Analyze application dependencies and integrations between legacy and modern systems.
• Support order-to-cash business processes that fall under SOX compliance requirements.
• Collaborate with internal development teams, DBAs, storage teams, and other application teams.
• Participate in a comprehensive knowledge transfer process with a retiring subject matter expert.

Required Qualifications

• 7+ years of IBM z/OS Mainframe Development experience.
• Advanced experience with COBOL, JCL, CICS, DB2, and VSAM.
• Strong troubleshooting, debugging, and root-cause analysis skills. Experience maintaining and enhancing existing enterprise applications, including modifying code written by others. Ability to work independently with minimal oversight in a legacy environment.
• Strong written and verbal communication skills.
• Meticulous attention to detail and a collaborative, team-oriented mindset.

Preferred Qualifications

• Experience supporting application modernization initiatives.
• Experience with API integrations and system integrations.
• Experience within transportation, trucking, logistics, or supply chain environments.
• Familiarity with scheduling and batch processing tools such as CA7, Tidal, or FTP.

Work Environment

• The standard schedule is Monday-Friday, 8:00 AM - 5:00 PM Eastern Time.
• A preference exists for candidates located in the Richmond, VA area, with the ability for occasional onsite collaboration. Candidates in Virginia or the Mid-Atlantic region will also be considered.
• This role includes limited production support responsibilities, with occasional early-morning investigation of batch job issues.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth 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 ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policy

Everforth Apex Benefits Overview: Everforth 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. Everforth 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, Everforth 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. Everforth 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 Everforth Apex team member can provide.

Everforth 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. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.

UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.

Employee Type:

Contract

Remote:

Yes

Location:

Henrico, VA, US

Job Type:

Date Posted:

September 29, 2026

Pay Range:

$60 - $70 per hour

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