Sr. Software Engineer - Backend Java

Kyndryl Inc.; Greater Noida; Hybrid; INR 1,200,000 - 2,400,000; Full time

Job summary

Kyndryl Inc. is seeking a software engineer to design, build, and maintain high-volume business logic on the mainframe while refactoring legacy systems for cloud and mobile integration.

The role emphasizes deep Java development, microservices architecture, and modern DevOps practices, with exposure to containers and data services. A strong foundation in OOP and design patterns is required, along with experience across relational and NoSQL databases.

Qualifications

• Experience as a software engineer on complex projects.
• Excellent coding skills with Java and debugging.
• Experience with scalable software development methodologies.
• Relational and NoSQL databases, data mapping, XML/JSON, REST-based services.
• Knowledge of Microservices architecture, containers (Docker & Kubernetes), messaging queues.
• Deep understanding of OOP and design patterns.

Responsibilities

• Maintain and optimize high-volume mainframe-related logic in modern environments.
• Refactor legacy code to enable cloud/mobile interaction with core data.
• Debug, test, and troubleshoot complex system interactions.
• Extract business logic for migration or integration with cloud services.

Skills

Java

REST APIs

Relational DBs

NoSQL DBs

Microservices

Docker

Kubernetes

Messaging queues

OOP

Design patterns

Education

Bachelor's degree in Computer Science

Hyperscaler certifications (Azure/AWS/Google)

Tools

Docker

Kubernetes

Jenkins

GitLab

Terraform

SpringBoot

AWS services

CI/CD

SQL

NoSQL (Mongo/DynamoDB)

Job description

Partially Remote

Bangalore, Karnataka, India

Hyderabad, Telangana, India

Chennai, Tamil Nadu, India

Pune, Maharashtra, India

Greater Noida, Uttar Pradesh, India

Full time

R-64121

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

Bring your specialist knowledge and experience to a company managing 50% of the world’s MIPS and play a critical role in our modernization mission. You’ll be in good company among our global community of experts leading the future of mainframe modernization. Experts who share knowledge openly and collaborate freely.

In this role, you’ll design, build and maintain the high‑volume business logic that runs on the mainframe. At the same time you’ll play a key role in refactoring legacy code to enable modern cloud and mobile applications to seamlessly interact with the mainframe’s core data.

What you will do

Maintain Performance

Prevent decay and find efficiencies: Monitor the architecture and identify opportunities to optimize code to maintain and enhance mainframe performance.

Debug and Test

Find and fix: Debug, troubleshoot, and analyze complex system interactions to keep mission‑critical applications running.

Develop for the Future

Bridge the gap: As an instrumental player in modernization, you’ll extract business logic from legacy systems for migration or integration with cloud‑based services.

Your Future at Kyndryl

The career path ahead is full of exciting opportunities to grow and advance within the job family. With dedication and hard work, you can climb the ladder to higher bands, achieving coveted positions such as Principal Engineer or Vice President of Software. These roles not only offer the chance to inspire and innovate, but also bring with them a sense of pride and accomplishment for having reached the pinnacle of your career in the software industry.

Who You Are

Required skills and experience

• Experience working as a software engineer on complex software projects.

• Excellent coding skills and solid development experience (Java) with debugging and problem‑solving skills.

• Software development methodologies, with demonstrated experience developing scalable and robust software.

• Experienced in relational and NoSQL databases, data mapping, XML/JSON, REST‑based web services.

• Knowledge of architecture design - Microservices architecture, containers (Docker & k8s), messaging queues.

• Deep understanding of OOP and design patterns.

Preferred skills and experience

• Bachelor's degree in Computer Science, related technical field, or equivalent practical experience.

• Certification in one or more of the hyperscalers (Azure, AWS, and Google GCP) - otherwise, you can obtain certifications with Kyndryl.

• Experience with DevOps tools and modern engineering practices.

• Java, SpringBoot, Awareness of SOLID, Microservices Architecture, Awareness of AWS Services (EC2, Lambda, S3, APIGateway, SQS, SNS, Cloudwatch, ECS etc), CI CD ((Jenkins / Gitlab)) pipelines, SQL, noSQL (Mongo/ DynamoDB), Awareness of Security (Spring and AWS IAM), Design patterns, HLD, LLD, Team co‑ordination, leading a team, System documentation, Agile, Terraform.

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.

At Kyndryl, we achieve progress the world depends on, with purpose. Beginning with the purpose that matters to you . Because here, you will be part of a culture designed with purpose. One that is restless, empathetic and devoted. Where we are committed to sustainable progress for our customers and supporting the communities where we work and live. All of you is what we want. And what we need. Join us, and together, we can advance the vital systems that power human progress.

Kyndryl is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, age, veteran status, or other characteristics. Kyndryl is also committed to compliance with all fair employment practices regarding citizenship and immigration status.