Java Developer

At Kyndryl, we run and reimagine the mission-critical technology systems that drive advantage for the world’s leading businesses.  We are at the heart of progress; with proven expertise and a continuous flow of AI-powered insight, enabling smarter decisions, faster innovation, and a lasting competitive edge. For our people—Kyndryls—that means doing purposeful work that powers human progress. Join us and experience a flexible, supportive environment where your well-being is prioritized and your potential can thrive.

The ideal candidate will possess deep expertise in COBOL-based legacy systems and hands-on experience developing enterprise Java applications. This role will focus on analysing, converting, and modernizing mainframe applications from COBOL to Java while ensuring business functionality, performance, and data integrity are maintained.

The candidate will collaborate with architects, business analysts, modernization specialists, and testing teams to deliver scalable, maintainable, and cloud-ready solutions.

• →Analyse existing COBOL, JCL, CICS, VSAM, DB2, and batch applications to understand business processes and technical dependencies.
• →Convert and refactor legacy COBOL code into modern Java-based applications.
• →Translate business logic from mainframe systems into Java microservices and enterprise applications.
• →Design, develop, test, and deploy Java applications using modern frameworks and design patterns.
• →Participate in application modernization and digital transformation initiatives.
• →Work closely with business users and SMEs to validate functionality and ensure business continuity.
• →Identify opportunities to optimize converted code rather than performing straightforward code translation.
• →Develop integration solutions between modern Java applications and legacy systems when required.
• →Create technical documentation, mapping documents, and conversion guidelines.
• →Conduct code reviews and ensure adherence to coding standards and best practices.
• →Support system integration testing, user acceptance testing, and production deployment activities.
• →Troubleshoot and resolve issues arising during migration and post-migration support.

• 5-10 years of software development experience using Java language.
• 2+ years of Mainframe development experience.
• Hands-on experience in COBOL-to-Java transformation or application modernization projects.
• Experience analysing large-scale legacy applications and translating business logic into modern architectures.

• Bachelor’s degree in computer science, related technical field, or equivalent practical experience.
• Experience with DevOps tools and modern engineering practices

• COBOL
• JCL
• CICS
• VSAM
• DB2
• IMS
• Mainframe batch processing
• z/OS environment

• Java 8/11/17+
• Spring Boot
• Spring Framework
• REST APIs
• Microservices Architecture

• Azure, AWS, or GCP
• Docker
• Kubernetes
• Git
• Jenkins/Azure DevOps
• CI/CD pipelines

The “Kyn” in Kyndryl means kinship, which represents the strong bonds we have with each other, our customers and our communities. We focus on ensuring all Kyndryls feel included and we welcome people of all cultures, backgrounds, and experiences. Even if you don’t meet every requirement, we encourage you to apply. We believe in growth, and we’re excited to see what you can bring. At Kyndryl, employee feedback has told us that our number one driver of employee engagement is belonging. That sense of belonging — being a valued, respected, trusted member of the team — is fundamental to our culture and fueling great experiences for our customers. This dedication to welcoming everyone into our company means that Kyndryl gives you the ability to thrive and contribute to our culture of empathy and shared success. That’s The Kyndryl Way.

What You Can Expect

Your career with us isn’t just a job—it’s an adventure with purpose.  We offer a dynamic, hybrid-friendly culture that supports your well-being and empowers you to grow. Our Be Well programs are thoughtfully designed to support your financial, mental, physical, and social health—because we know that when you feel your best, you do your best.

From your very first day, you’ll dive into impactful work that powers the systems our customers rely on every day. You won’t just contribute—you’ll make a difference, tackling meaningful projects that sharpen your skills and fuel your growth.

We’re here to champion your journey. With powerful tools to chart your career path, personalized development goals aligned with your ambitions, and continuous feedback to keep you inspired and on track, you’ll have everything you need to thrive and evolve. You’ll develop in-demand skills to grow your career and achieve your ambitions with access to cutting-edge learning opportunities—from certifications with Microsoft, Google, and Amazon to coaching and hands-on experiences. And through it all, you’ll be part of a culture that values empathy, restless learning, and a devotion to shared success.

We want you to thrive here—and we’re committed to helping you do just that. Ready to make an impact? Join us and help shape what’s next.

Get Referred!

If you know someone that works at Kyndryl, when asked ‘How Did You Hear About Us’ during the application process, select ‘Employee Referral’ and enter your contact's Kyndryl email address.