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🚀 Senior COBOL Developer
Location: Poland (Remote)
Contract: Full-Time
Join the Future of Digital Tech with Kolomolo
At Kolomolo, we don’t just follow trends - we set them. As a global supplier of IT services and digital modernization solutions, we help businesses embrace cutting-edge technology to optimize their operations. Now, we are growing and looking for fresh talent to grow with us.
Are you proactive, tech-savvy, and eager to build your career in IT? This role could be your perfect fit.
About the Role
As a Senior COBOL Developer, you will play a pivotal role in ensuring the reliability, performance, and modernization of enterprise systems that support finance, operations, and transaction processing. You will manage the full lifecycle of COBOL applications from requirement analysis, architecture, and development to integration, performance optimization, and modernization initiatives.
You will also have opportunities to influence system design, mentor junior developers, and drive innovation in environments where COBOL remains critical to business operations.
This role is intended for talent pooling purposes; therefore, it does not involve an active recruitment process at this time.
What You’ll Be Doing
• Design, develop, and maintain COBOL applications for batch and online processes.
• Analyse business requirements and translate them into technical designs and flowcharts.
• Debug, troubleshoot, and resolve production incidents, including batch and online abends.
• Optimize system performance, scalability, and processing efficiency.
• Integrate COBOL systems with middleware, distributed systems, and modern platforms.
• Create and maintain high-quality technical documentation and design specifications.
• Support full SDLC processes, from analysis to deployment and testing.
• Collaborate with QA, Business Analysts, System Architects, and DevOps teams.
• Mentor junior developers, review code, and promote engineering best practices.
Technologies & Tools
• Mainframe & Languages:
COBOL, JCL, CICS, DB2, VSAM, IMS, TSO/ISPF, z/OS
• Integration & Messaging:
MQ Series, distributed system interfaces
• Processes & Frameworks:
SDLC (Waterfall & Agile), IT Service Management / ITIL, batch & real-time processing
What We’re Looking For
• 5+ years of hands-on COBOL development experience in enterprise environments.
• Expertise in COBOL, JCL, CICS, DB2, VSAM, IMS, z/OS.
• Strong debugging experience resolving complex production issues.
• Experience designing and documenting large-scale systems.
• Ability to integrate COBOL systems with modern technologies.
• Excellent communication and collaboration skills.
• Passion for clean, maintainable code and system reliability.
Nice to Have
• Experience in finance, banking, insurance, or government systems.
• Knowledge of ITIL or service management practices.
• Exposure to modernization and cloud migration initiatives.
• Experience mentoring junior developers.
🌟 Why Join Kolomolo?
At Kolomolo, we prioritize innovation, agility, and autonomy. Our teams have the freedom to own their work, share ideas, and make meaningful contributions. Inspired by Scandinavian values, we believe in work-life harmony and creating an inclusive culture where everyone thrives.
You will be part of a passionate, skilled, and friendly team that works hard and celebrates together. Here, you can build your career on your own terms, with opportunities to grow, learn, and make a real impact.
Our Flat Structure & The Culture of Inclusion
At Kolomolo, we break the corporate mold. We offer:
Agile Teams & Autonomy: No micromanagement. You’ll own your projects and enjoy the freedom to innovate.
Work-Life Harmony: Inspired by Scandinavian values, we prioritize balance and flexibility, where remote work and asynchronous collaboration are in our DNA.
Learning & Growth: Continuous learning is at our core. We reward hard work, value smart ideas, and foster an environment of mutual respect and trust.
Inclusive Culture: We believe in DEI: diversity, equity and inclusion. We are committed to creating an environment where every individual, regardless of background, identity, or experience feels valued, respected, and empowered to thrive.
Join Kolomolo and elevate your career with cutting-edge technology, a supportive team, and a company that truly values your input.
Ready for the next step? Apply now and start an exciting journey of growth and innovation with us!
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