Kotlin Backends Built for the Real World.
Master Kotlin Spring Boot development by building a production-grade backend for a chat app in over 120 video lessons and 20h of content
After this course, you will...
Confidently build apps for 6 platforms
You won’t just work on the backend code itself, but also learn about how the entire server infrastructure needs to look like to support the level of scale you need.
Confidently build backends built for a scaling user base
This course does NOT focus on building quick hobby backends – instead you will learn real-world practices that prepare your backend for a growing user base.
Deploy Spring Boot instances via CI/CD pipelines
Deployment is simple once automated. In this course, you’ll learn to implement a GitHub Actions pipeline that brings it online with a simple GitHub push.
Built to Scale.
This course focuses on teaching you build backends for a real scaling user base – and how you can come up with a system design yourself that matches your app’s unique requirements.
Spring Security
Use Spring Security & JWT to build a secure authentication system for your users.
PostgreSQL
Structure an SQL database with 10 tables and relations to save complex user data.
Redis
Implement caching strategies with Redis to ensure fast data access for any client.
RabbitMQ
Ensure no important event gets lost by relying on RabbitMQ message queues.
WebSockets
Exchange messages with clients in real-time via WebSockets.
Firebase Admin SDK
Send push notifications to Android & iOS clients via the Firebase Admin SDK.
Mailing
Send transactional emails with Mailgun, for example for forgot password emails.
File Storage
Learn to efficiently store files remotely and work with pre-signed URLs.
Philipp Lackner has over 14 years of experience in the software field. Over the past years, he built a following of over 250,000 developers on social media who trust his work. With over 25,000 sold copies of his courses and 1,000h+ spent for teaching Android concepts, he already helped hundreds of thousands people to learn practical skills they can immediately apply.
He has a degree in computer science, however it didn’t go as expected. The amount of theory that was taught in university made him think about a better approach to learn what is really needed in the real world. Over time, Philipp found mentors who taught him exactly that in a practical setting. That was the game changer for his career.
After having worked for dozens of companies around the globe as a consultant, Philipp now wants to teach other Kotlin developers what really counts for becoming an outstanding developer in today’s competitive industry.
- Felt lost in his own projects
- Didn't feel confident in Android interviews
- Confidently nailing coding interviews
- Feels confident about advanced topics like multi-module architecture
- Convinced employers of having a higher seniority than before
- Android developer in India
- No real hands-on experience on developing complex apps
- Low salary
- Got a well-paying job in Canada
- Understood the new company's tech stack the moment he joined
- Confidently develops real-world applications
- Wasn't able to build his own apps
- Felt insecure about architecture, Compose and more advanced topics
- Approaches projects for himself and clients confidently
- Truly understands the entire relevant Android tech stack
What People Are Saying
About Philipp’s Courses
Real-world insights, structured learning, and expert mentorship that transform careers.
"This course brought me back on track really fast and Philipp really took care to convey general knowledge that can be applied on every Android project."
"I have been using modularization for a long time, but I learned new cool stuff and tricks in your course that will change my way of thinking about how I should design my code."
"What’s unique about Philipp, that he cares about those who are looking for help, he answers to PM’s, I’ve never had experience like that."
"Your course let me also the opportunity to enhance my jetpack compose and unit test skills . So, I can consider me super satisfied. Please, don’t stop mentoring."
"Taking any of Philipp’s courses makes you go from 0 to almost 100 in understanding the concepts in no time. He explains the basics so well and teaches real world application use cases."
"I’ve had struggles working with big projects, but after this course I feel so much more confident in my skills in building large robust apps."
"I recently completed this course, and I couldn't be more thrilled with the experience! This course exceeded my expectations in every way. Philipp's real-world experience was evident. He covered everything from Ul design to integrating APls and managing databases,... Overall, this course was an incredible learning journey. I highly recommend it to anyone looking to start or advance their career in Android development!"
"Philipp is an amazing developer who explains the most difficult topics in a way that's digestible and it stays with you. Everything is through practical examples. He's someone you'd want to go to, to understand something that you can't understand"
"This is one of the best courses for android development I have taken, not only we get to learn a lot but we also get an insight of where the industry is heading and how to approach problems and projects."
The Course at a Glance
Make a one-time investment and gain skills that last forever
- 120 Exclusive Videos About Kotlin Backend Development Spanning 20h: Learn how production-grade backend systems are structured and build your own server handling traffic for a chat client app.
- Certificate Awarded at the End: At the end of the course, you’ll be able to take a quiz and get a certificate after passing to show off your expertise in Android development.
- Flexible Access: You can watch the course materials in your own pace anywhere.
- Optional Extension: In checkout, you can extend your purchase to the Kotlin Full-Stack Developer Bundle, get an additional bundle discount and learn to build the Kotlin Multiplatform client apps as well (covers Android, iOS, Windows, MacOS & Linux)
Frequently asked questions
The prerequisites are understanding basic concepts of the following technologies:
- Kotlin
- Spring Boot Basics (a free crash course to learn this will be provided)
Yes, after following through the courses, you can take a final quiz that covers the concepts taught in the course. If you pass it, you will be awarded a certificate that proves that you can confidently apply full-stack concepts with Kotlin.
We’ve collaborated with JetBrains – the makers of Kotlin Multiplatform itself – to create this course. This means the entire course bundle has been reviewed and approved by JetBrains’ KMP developer advocates – those people who fundamentally contributed to the technology itself.
Just as for all of our courses, you get a voluntary 30-day money back guarantee in case you’re not satisfied with the course content.
We guarantee access for at least 24 months.