Senior Mainframe Developer Jobs in Wisconsin (NOW HIRING)

Job#: 3032547
Job Description:
Mainframe Programmer
Location: Brookfield, Wisconsin (Onsite)
Employment Type: W2 Contract (12+ months)
Apex cannot provide visa sponsorship on its W2
Role Overview
This role supports a project-based team within the Credit Product Development Journey, contributing to continued delivery across multiple phases. The position involves hands-on development on core Product and Rewards applications within a fast-paced Agile team. This is a senior-level role for a developer with extensive experience in high-volume credit card processing systems.
Key Responsibilities

• Work as part of an established Agile delivery team supporting Product and Rewards applications.
• Participate in team Agile ceremonies, including stand-ups, sprint planning, and retrospectives.
• Perform hands-on mainframe development using COBOL and DB2.
• Execute coding, unit testing, integration testing, and support for user acceptance testing (UAT).
• Support enhancements, defect fixes, and ongoing maintenance of high-volume transactional systems.
• Collaborate with team members to deliver project milestones across multiple phases of the initiative.

Required Qualifications

• 10+ years of hands-on experience with Mainframe COBOL and DB2.
• Experience supporting large-scale, high-volume batch or online processing systems.
• Proven ability to work effectively within an Agile development team.
• A solid understanding of the full development lifecycle, including testing and production support.

Compensation & Benefits
A competitive pay rate is offered for this contract position - rate target is 59-62/hr W2, but is flexible.
We are an equal opportunity employer and welcome applications from all qualified candidates regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.
Apex uses a virtual recruiter as part of the application process. Click for more details.
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 Benefits Department at or .
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 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
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 or . Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.
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