Software Engineering - Development Specialist

3330 Kyndryl Nederland B.V.; Hoofddorp; Hybrid; EUR 90,000 - 130,000; Full time

Job summary

Kyndryl is seeking a Software Engineering - Development Specialist to design, build, and optimize enterprise-grade software for global clients. You will bridge architectural concepts with hands-on implementation, delivering secure, modular, and scalable applications that solve complex business challenges.

In agile squads, you’ll modernize codebases, drive automation, and champion engineering excellence while embedding security and reliability into every stage of the software development

Qualifications

• Extensive hands-on software development using Java, Python, C#, or Go.
• Experience deploying microservices and RESTful or event-driven APIs in production.
• Strong understanding of OO design, patterns, and domain-driven design (DDD).

Responsibilities

• Architect, write, and maintain robust, high-performance, secure application code.
• Champion modern software engineering practices and microservices design patterns.
• Build, automate, and optimize CI/CD pipelines for zero-downtime releases.
• Lead test automation across unit, integration, and end-to-end testing.
• Collaborate with architects, product owners, and clients to translate requirements into deliverables.
• Refactor to remove technical debt and bolster performance and security.
• Mentor junior/mid developers and foster a learning culture.

Skills

Java

Python

C#

Go

RESTful APIs

Microservices

OOP design

DDD

Tools

Docker

Kubernetes

Git

CI/CD tools

Terraform

Job description

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

As a Software Engineering - Development Specialist, you will spearhead the design, build, and optimization of enterprise‑grade software solutions that power mission‑critical platforms for global clients. In this role, you will bridge strategic architectural concepts and hands‑on implementation, delivering secure, resilient, and highly scalable applications that solve complex business and operational challenges. Collaborating within modern agile delivery squads, you will work alongside cloud architects, platform engineers, and cross‑functional technology leaders to modernize codebases, drive automation, and champion engineering excellence. Your focus will be on accelerating time‑to‑market while embedding security, modularity, and operational reliability into every stage of the software development lifecycle.

What You Will Do

• Architect, write, and maintain robust, high‑performance, and secure application code in line with enterprise design standards.
• Champion modern software engineering practices, including Clean Architecture, SOLID principles, and microservices design patterns.
• Build, automate, and optimize continuous integration and continuous delivery (CI/CD) pipelines to enable rapid, zero‑downtime releases.
• Lead test automation strategies—spanning unit, integration, and end‑to‑end testing—to maximize software stability and code quality.
• Partner with technical architects, product owners, and client stakeholders to translate complex requirements into scalable technical deliverables.
• Identify and eliminate technical debt, performance bottlenecks, and system vulnerabilities through systematic refactoring and code reviews.
• Mentor junior and mid‑level software developers, fostering a culture of continuous learning, technical craftsmanship, and shared ownership.

Your Future at Kyndryl

Becoming a Software Engineering - Development Specialist 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, or move vertically into senior leadership or specialized domain roles. There are many different types and flavors of roles at Kyndryl, so everyone can find the opportunity that suits them best.

Who You Are

You’re good at what you do and possess the required experience to prove it. However, equally as important – you have the 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 Experience

• Extensive professional hands‑on software development experience using modern enterprise programming languages (e.g., Java, Python, C#, or Go).
• Proven track record architecting and deploying microservices, RESTful APIs, or event‑driven applications in production environments.
• Deep understanding of object‑oriented design, architectural patterns, SOLID principles, and domain‑driven design (DDD).
• Demonstrated experience with containerization technologies and orchestration platforms, specifically Docker and Kubernetes.
• Hands‑on proficiency with modern DevOps toolchains, version control (Git), and automated CI/CD tools (e.g., GitHub Actions, GitLab CI, or Jenkins).
• Strong experience designing and optimizing relational (e.g., PostgreSQL, MySQL) and non‑relational (e.g., MongoDB, DynamoDB) data stores.
• Exceptional analytical and troubleshooting abilities with strong cross‑functional communication and team mentorship skills.

Preferred Skills and Experience

• Hands‑on engineering and deployment experience on major cloud hyperscaler platforms (AWS, Microsoft Azure, or Google Cloud Platform).
• Practical experience implementing Infrastructure as Code (IaC) tooling, such as Terraform or Ansible.
• Relevant industry certifications, such as AWS Certified Developer, Azure Developer Associate, or Certified Kubernetes Application Developer (CKAD).
• Exposure to modern frontend frameworks (e.g., React, Angular, or Vue.js) for full‑stack collaboration.

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.

Join us, and together, we can advance the vital systems that power human 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.