Intern Mainframe Applications Developer Jobs in Florida

Job#: 3039343
Job Description:
Senior Mainframe Application Developer
Hybrid in the Following Locations: Tampa, FL or Dallas, TX
Overview
We are seeking an experienced Senior Mainframe Application Developer to lead the design, development, testing, and support of complex business applications. This role requires deep expertise in mainframe technologies, strong analytical skills, and the ability to manage the full software development lifecycle. The ideal candidate will collaborate with business stakeholders, support production environments, and deliver high-quality, scalable solutions that meet organizational objectives.
Key Responsibilities
Application Development

• Analyze business requirements and translate them into technical solutions and specifications.
• Design, develop, and maintain complex application programs and enhancements.
• Evaluate business processes and recommend effective technology solutions.
• Conduct systems analysis to support application development and implementation initiatives.
• Provide application support, troubleshooting, and issue resolution.
• Support production systems and ensure application stability and performance.
• Coordinate and manage small-scale projects with limited scope and duration when required.

Testing & Quality Assurance

• Define and develop test cases, test scenarios, and test scripts.
• Prepare and maintain testing environments.
• Execute component, integration, system, and user acceptance testing activities.
• Analyze testing results and communicate findings to stakeholders.
• Collaborate with business users to validate expected outcomes.
• Ensure adherence to quality assurance standards and development best practices.

Required Qualifications

• 10+ years of experience in application development and systems analysis.
• Bachelor's degree in a technical discipline or equivalent professional experience.
• Strong expertise in COBOL, CICS, and JCL development.
• Advanced SQL skills with extensive DB2 experience.
• Strong understanding of the Software Development Life Cycle (SDLC) and change management processes.
• Excellent analytical, problem-solving, and communication skills.
• Demonstrated customer-focused mindset and ability to work effectively with stakeholders.

Preferred Qualifications

• Experience with Agile development methodologies.
• Ability to create functional and technical documentation.
• Knowledge of MQ, FTP, and NDM.
• Experience with SWIFT ISO standards and XML.
• Familiarity with AQT.
• Exposure to Java, J2EE, JavaScript, WebSphere Application Server (WAS) 8.5, and related technologies.
• Understanding of enterprise integration and financial services application environments.

Ideal Candidate
The ideal candidate is a seasoned mainframe professional with strong technical expertise, a passion for solving complex business problems, and the ability to support mission-critical applications throughout the development lifecycle. They thrive in collaborative environments and bring a commitment to quality, reliability, and continuous improvement.
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 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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