SOFTWARE ENGINEERING DEVELOPMENT

Kyndryl; Madrid; Sur place; EUR 60 000 - 90 000; Plein temps

Résumé du poste

Kyndryl in Madrid is seeking a skilled software engineer to design, build, and maintain high-volume mainframe logic while refactoring legacy code for seamless cloud and mobile integration.

You will optimize performance, debug complex interactions, and contribute to modernization efforts across distributed services. Strong Java, Python or .Net skills, plus Docker/Kubernetes, are valued for this role.

Qualifications

• Experience working on complex software projects.
• Demonstrated development experience with debugging and problem-solving skills.
• Experience with scalable and robust software development methodologies.

Responsabilités

• Design, build and maintain high-volume business logic on the mainframe.
• Refactor legacy code to enable cloud/mobile integration.
• Monitor architecture to optimize mainframe performance.
• Debug, troubleshoot, and analyze complex system interactions to keep mission-critical apps running.
• Extract business logic from legacy systems for migration or cloud integration.

Connaissances

Software engineering experience

Java/Python/.Net

SDLC methodologies

Relational/NoSQL databases

XML/JSON & REST

Microservices & containers

OOP & design patterns

Formation

Bachelor's degree in Computer Science or related field

Outils

Docker

Kubernetes

Description du poste

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.

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.

Who You Are

• Experience working as a software engineer on complex software projects.
• Excellent coding skills and solid development experience (Java, Python, .Net etc.) 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.

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

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

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.