Elena van Engelen-Maslova

Elena van Engelen-Maslova

Independent Senior / Lead Software Engineer


As an independent Senior/Lead Software Engineer working on a freelance basis, I help businesses design and implement scalable, maintainable backend systems using Kotlin and Java. I specialize in cloud-native architectures, microservices, and event-driven patterns, ensuring high-quality results tailored to meet business needs.

I have worked with leading organizations to deliver impactful solutions, leveraging my extensive expertise in building secure, efficient systems. Explore my recent projects and achievements in my Portfolio.

In addition to software engineering, I provide Kotlin training sessions to help teams enhance their skills and productivity. My training programs are based on practical, real-world experience and include content from my book, Kotlin Crash Course—a comprehensive guide to learning Kotlin, from basics to advanced concepts. Learn more about my tailored training programs on the Training page.

Beyond my immediate projects, I write about Kotlin and cloud-native solutions on my blog and share insights at conferences like Kotlin Dev Day Advanced.

Outside of work, I enjoy running, yoga, cross-country skiing, and spending time with my kids & family.


Get in Touch

I’d love to hear from you! Whether you are looking to discuss a project, need Kotlin training, or just want to connect, feel free to reach out through any of the channels below: