Senior Mainframe Developer - Remote & AI Modernization

Accenture; Łódź; Hybrid; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Permanent contract

Professional development / training

Employee assistance program

Private medical care

Life insurance

Share purchase plan

Job summary

Accenture Poland is seeking an experienced IBM Mainframe Developer to support banking clients and deliver high-quality mainframe solutions.

You will analyze business requirements, design COBOL/JCL/CICS/z/OS applications, and optimize DB2/SQL performance while mentoring junior developers.

Join international project teams driving modernization, automation, and AI-enabled improvements, with flexible hybrid work arrangements and strong emphasis on continuous learning.

Qualifications

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

Responsibilities

• Develop and maintain strategic IBM Mainframe applications for banking with high-quality delivery.
• Analyze business requirements and design scalable COBOL/JCL/CICS/z/OS solutions.
• Diagnose production issues, optimize performance, and implement enhancements.
• Collaborate with international project teams on modernization initiatives.
• Mentor junior developers and promote continuous learning.

Skills

COBOL

JCL

CICS

z/OS

DB2

SQL

English (B2)

Tools

Git

Bitbucket

CI/CD

Job description

Accenture Poland is seeking an experienced IBM Mainframe Developer to support banking clients and deliver high-quality mainframe solutions.

You will analyze business requirements, design COBOL/JCL/CICS/z/OS applications, and optimize DB2/SQL performance while mentoring junior developers.

Join international project teams driving modernization, automation, and AI-enabled improvements, with flexible hybrid work arrangements and strong emphasis on continuous learning.