At BairesDev®, we've been leading the way in technology projects for over 15 years. We deliver cutting-edge solutions to giants like Google and the most innovative startups in Silicon Valley. Our diverse 4,000+ team, composed of the world's Top 1% of tech talent, works remotely on roles that drive significant impact worldwide. When you apply for this position, you're taking the first step in a process that goes beyond the ordinary. We aim to align your passions and skills with our vacancies, setting you on a path to exceptional career development and success. As a Mainframe Developer, you will maintain and modernize critical COBOL applications that power essential systems in sectors like banking and insurance. You will serve as a key link between legacy infrastructure and modern business needs, ensuring high availability and efficiency for large-scale data processing.

What You'll Do
• Design, develop, and maintain mission-critical applications using COBOL, CICS, and DB2.
• Manage and optimize mainframe batch and online processing workflows using JCL and VSAM.
• Troubleshoot complex production issues and perform root cause analysis for system failures.
• Support modernization initiatives to integrate legacy systems with contemporary cloud platforms.
• Collaborate with cross-functional teams to translate business requirements into technical solutions.




• Ensure system stability and security by adhering to enterprise coding standards and best practices. What We Are Looking For
• 4+ years of experience in Software Engineering or Mainframe Development.
• Proven expertise in maintaining and modernizing COBOL applications on IBM mainframes.
• Proficiency in core mainframe technologies including CICS, DB2, JCL, and VSAM.
• Hands-on experience with both mainframe batch and online transaction processing.
• Strong understanding of the System Development Life Cycle (SDLC) and technical troubleshooting.
• Advanced proficiency in English. How we do make your work (and your life) easier:
• 100% remote work (from anywhere).
• Excellent compensation in USD or your local currency if preferred
• Hardware and software setup for you to work from home.
• Flexible hours: create your own schedule.
• Paid parental leaves, vacations, and national holidays.
• Innovative and multicultural work environment: collaborate and learn from the global Top 1% of talent.
• Supportive environment with mentorship, promotions, skill development, and diverse growth opportunities. Join a general team where your unique talents can truly thrive and make a significant impact Apply now #BD-PRIO-2026

📌 Mainframe Developer (México)
🏢 BairesDev
📍 México