Senior Mainframe Developer (COBOL)

Location: Poland — Warsaw, Lodz, Wroclaw, or Katowice. Remote work is available, with onsite time at a client or hirify.global office required depending on project circumstances.

Company

hirify.global is a global professional services company delivering technology, consulting, operations, and industry solutions for businesses, governments, and other organizations.

What you will do

• Develop and maintain strategic IBM Mainframe applications supporting critical banking processes.
• Analyze business requirements and design scalable solutions using COBOL, JCL, CICS, z/OS, and DB2.
• Diagnose production issues, optimize application performance, and implement enhancements.
• Collaborate with international project teams on Mainframe modernization, automation, and AI-driven solutions.
• Share knowledge and mentor less experienced developers.

Requirements

• At least 5 years of commercial experience developing and maintaining IBM Mainframe applications.
• Strong knowledge of COBOL, JCL, CICS, and z/OS.
• Practical DB2 experience, including SQL development, query optimization, and data analysis.
• Ability to analyze business requirements and independently design and implement technical solutions.
• Experience troubleshooting production issues and optimizing existing applications.
• Proactive, self-driven approach with accountability for delivered solutions.
• Ability to collaborate effectively in international project teams.
• English proficiency at minimum B2 level.

Nice to have

• Experience with Git, Bitbucket, and CI/CD processes in Mainframe environments.
• Professional experience in banking, financial services, or insurance.
• Knowledge of Mainframe modernization and AI-supported software development practices.
• Experience mentoring or supporting junior developers.

Culture & Benefits

• Permanent employment contract with individual People Lead support and a professional development path.
• Technical, soft-skills, language, e-learning, GenAI, course co-financing, and certification opportunities.
• Employee Assistance Program offering legal, financial, and psychological consultations.
• Private medical care, life insurance, employee referral program, and access to the MyBenefit platform.
• Inclusive and diverse environment focused on knowledge sharing, innovation, professional growth, and sustainability.
• Remote flexibility is combined with in-person collaboration, learning, and client or office work when required by the project.

Hiring process

• Submit an application including the required GDPR personal-data processing consent statement.