Java Developer

Posted 10 Days Ago
Be an Early Applicant
6 Locations
In-Office
Senior level
Cloud • Information Technology • Consulting
The Role
Analyze and modernize COBOL-based mainframe applications by converting business logic into Java applications, microservices, and cloud-ready solutions. Develop, test, deploy, document, and troubleshoot enterprise Java systems while maintaining functionality, performance, and data integrity. Collaborate with architects, business analysts, users, and testing teams throughout migration, integration, and production support activities.
Summary Generated by Built In

Who We Are

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 Role

Your Role

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 analyzing, 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.What You Will DoKey Responsibilities
  • Analyze 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.

Your Future at Kyndryl
 

Becoming a Project Manager at Kyndryl is an excellent gateway to many different paths. You’ll be creating a well-rounded skillset while gaining professional certifications and qualifications.You can evolve horizontally into other technical or non-technical areas such as Technical Service Architect, or you can move vertically to become a Senior Project Manager or program manager. There are many different types and flavors of project manager roles, so everyone can find the opportunity that suits them best.


Who You Are

Who You Are

You’re good at what you do and possess the required experience to prove it. However, equally as important – you have a growth mindset; keen to drive your own personal and professional development. You are customer-focused – someone who prioritizes customer success in their work. And finally, you’re open and borderless – naturally inclusive in how you work with others.
 

Required skills and experienceExperience
  • 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 analyzing large-scale legacy applications and translating business logic into modern architectures.
Technical SkillsBasic knowledge 
  • COBOL
  • JCL
  • CICS
  • VSAM
  • DB2
  • IMS
  • Mainframe batch processing
  • z/OS environment
Java Technologies
  • Java 8/11/17+
  • Spring Boot
  • Spring Framework
  • REST APIs
  • Microservices Architecture
Cloud & DevOps (Preferred)
  • Azure, AWS, or GCP
  • Docker
  • Kubernetes
  • Git
  • Jenkins/Azure DevOps
  • CI/CD pipelines
Preferred skills and experience•Bachelor's degree in Computer Science, related technical field, or equivalent practical experience.•Experience with DevOps tools and modern engineering practices.
 


Being You

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.

Skills Required

  • 5-10 years of software development experience using Java
  • 2+ years of mainframe development experience
  • Hands-on experience with COBOL-to-Java transformation or application modernization projects
  • Experience analyzing large-scale legacy applications and translating business logic into modern architectures
  • Knowledge of COBOL, JCL, CICS, VSAM, DB2, IMS, mainframe batch processing, and z/OS
  • Bachelor's degree in Computer Science, a related technical field, or equivalent practical experience
  • Experience with DevOps tools and modern engineering practices
  • Experience with Azure, AWS, or GCP
  • Experience with Docker, Kubernetes, Git, Jenkins, Azure DevOps, or CI/CD pipelines

Kyndryl Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Kyndryl and has not been reviewed or approved by Kyndryl.

  • Fair & Transparent Compensation — Pay is considered good in some roles, with mentions of “good pay,” “great pay and benefits,” and an “acceptable salary range” paired with bonuses. Certain senior or consulting tracks are described as market-competitive.
  • Leave & Time Off Breadth — Vacation, paid time off, holidays, and a dedicated volunteer day are highlighted as positives. Parental leave exists companywide alongside sick leave and disability coverage.
  • Wellbeing & Lifestyle Benefits — Remote and hybrid flexibility is emphasized, including 100% remote roles and a formal flexible workplace policy. Well‑being resources such as the Be Well program and an EAP are available.

Kyndryl Insights

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The Company
HQ: New York, NY
46,070 Employees
Year Founded: 2021

What We Do

We have the world’s best talent that design, run, and manage the most advanced and reliable technology infrastructure each day. Together, we think holistically about the health of these vital technology ecosystems. We are a focused, independent company that builds on our foundation of excellence by creating systems in new ways. Bringing in the right partners, investing in our business, and working side-by-side with our customers to unlock potential. We're raising the bar. Our experience speaks for itself: We have 90,000 highly skilled employees around the world serving 75 of the Fortune 100. But our purpose is what drives us: Advancing the vital systems that power human progress. Because when a digital ecosystem is healthy, it can more readily adapt and support continuous growth and that opens up a world of possibility for everyone.

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