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Posted Apr 16, 2026

**Experienced Full Stack Mainframe Application Developer – Web & Cloud Application Development**

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Join arenaflex, a leading provider of innovative technology solutions, as we seek an experienced Full Stack Mainframe Application Developer to join our dynamic team. As a key member of our development team, you will be responsible for designing, coding, testing, and debugging mainframe applications using COBOL, JCL, DB2, and CICS. If you have a passion for mainframe application development and a desire to work in a collaborative and innovative environment, we encourage you to apply for this exciting opportunity. **About arenaflex** arenaflex is a cutting-edge technology company that specializes in providing innovative solutions to complex business problems. With a strong focus on customer satisfaction and employee growth, we strive to create a work environment that is both challenging and rewarding. Our team of experts is dedicated to delivering high-quality solutions that meet the evolving needs of our clients. As a Full Stack Mainframe Application Developer at arenaflex, you will have the opportunity to work on a wide range of projects, from developing and maintaining financial transaction processing systems to conducting system analysis and performance tuning. **Key Responsibilities** As a Full Stack Mainframe Application Developer at arenaflex, your key responsibilities will include: * Design, code, test, and debug mainframe applications using COBOL, JCL, DB2, and CICS * Develop and maintain financial transaction processing systems, ensuring accuracy and compliance * Conduct system analysis and performance tuning to enhance efficiency * Ensure adherence to financial regulations and data security policies * Provide technical support, resolve system issues, and implement enhancements * Maintain system documentation and assist in training junior developers **Essential Qualifications** To be successful in this role, you will need to possess the following essential qualifications: * Bachelor's degree in Computer Science, Information Technology, or a related field * Minimum 5 years of experience in mainframe application development using COBOL, JCL, DB2, and CICS * Strong understanding of mainframe architecture and system design * Experience with financial transaction processing systems and data security policies * Excellent problem-solving and analytical skills * Strong communication and collaboration skills * Ability to work in a fast-paced environment and meet deadlines **Preferred Qualifications** While not essential, the following qualifications would be highly desirable: * Master's degree in Computer Science, Information Technology, or a related field * Experience with cloud-based technologies and web development * Knowledge of agile development methodologies and version control systems * Certification in mainframe application development or data security * Experience with training and mentoring junior developers **Skills and Competencies** To succeed in this role, you will need to possess the following skills and competencies: * Strong programming skills in COBOL, JCL, DB2, and CICS * Excellent analytical and problem-solving skills * Strong communication and collaboration skills * Ability to work in a fast-paced environment and meet deadlines * Strong understanding of mainframe architecture and system design * Experience with financial transaction processing systems and data security policies * Knowledge of cloud-based technologies and web development (desirable) **Career Growth Opportunities and Learning Benefits** As a Full Stack Mainframe Application Developer at arenaflex, you will have the opportunity to work on a wide range of projects and develop your skills in mainframe application development, cloud-based technologies, and web development. We offer a comprehensive training program that includes: * Regular training sessions and workshops on mainframe application development and cloud-based technologies * Opportunities to attend industry conferences and events * Mentorship programs to help you develop your skills and advance your career * A collaborative and innovative work environment that encourages creativity and experimentation **Work Environment and Company Culture** arenaflex is a dynamic and innovative company that values its employees and strives to create a work environment that is both challenging and rewarding. Our team of experts is dedicated to delivering high-quality solutions that meet the evolving needs of our clients. We offer a comprehensive benefits package that includes: * Competitive salary and benefits package * Flexible working hours and remote work options * Comprehensive training program * Opportunities for career growth and advancement * Collaborative and innovative work environment **Compensation, Perks, and Benefits** arenaflex offers a competitive salary and benefits package that includes: * Competitive salary range: $120,000 - $180,000 per year * Comprehensive benefits package, including health insurance, retirement plan, and paid time off * Flexible working hours and remote work options * Comprehensive training program * Opportunities for career growth and advancement * Collaborative and innovative work environment **Conclusion** If you are a motivated and experienced Full Stack Mainframe Application Developer looking for a new challenge, we encourage you to apply for this exciting opportunity. Join arenaflex and be part of a dynamic team that is dedicated to delivering high-quality solutions that meet the evolving needs of our clients. Apply now and take the first step towards a rewarding and challenging career in mainframe application development.
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