Dipl.-Ing. (FH) · Senior App Developer · Klagenfurt / Vienna

Getting mobile apps
technically
on track.

I work with app teams on Android/Kotlin, app architecture, modernization, and practical AI-assisted development workflows.

More than 20 years of experience - from the first line of code to store release.

Android Kotlin Compose Multiplatform Architecture AI-assisted Dev
Klemens Zleptnig
Focus

What I work on.

Experience

Selected roles.

2014
today
Software Engineer, Consultant & CEO
creative workline GmbH · Vienna / Klagenfurt

Through creative workline I help companies and startups design and build high-quality mobile applications - from architecture and prototyping to production-ready implementation. My main focus is modern Android with Kotlin and Jetpack Compose, with iOS, cross-platform, and backend work where needed.

Android · Kotlin · Jetpack Compose · iOS · TypeScript / Node.js · AWS / GCP · Docker · AI-assisted workflows
2018
2022
CTO & Technical Partner
uugot.it

Ed-tech platform for learning languages while watching TV and video content: web and smartphone apps stream content with interactive subtitles, word translation, and products for schools and educational institutions. As technical partner and lead software engineer I was responsible for the SaaS platform.

Android · iOS · PWA · Ionic · Angular · Node.js · MongoDB · AWS / GCP · NLP · translation algorithms
2017
2020
Co-founder & CTO
Toni.ai

Toni.ai built sports chatbots and messenger marketing solutions for clubs, leagues, media, and brands. The platform combined natural language processing, sports data, live updates, FAQs, and targeted fan communication through Facebook Messenger and app integrations.

LAOLA1 / Sportradar · FC Red Bull Salzburg · spusu LIGA (HLA) · Emmi · TypeScript · Node.js · Wit.ai · Dialogflow
since
2007
Freelancer & Consultant
Independent

Mobile, backend, and architecture consulting for startups, SMEs, and enterprise teams. Roles as developer, tech lead, PM, and technical advisor across industries and company sizes.

REWE digital · Wunderlist (→ Microsoft) · and others
Community

Engagement.

Founder & Co-organizer
AndroidHeads Vienna · since 2013

Android and mobile developer community in Vienna, founded in 2013. More than 600 members today. Co-organizer of droidcon Vienna. Part of the Google Community Leads Platform, sponsored by JetBrains.

Co-founder & Co-organizer
SportsTech Austria

Platform for sports enthusiasts, startup builders, and technology experts in Austria. Partners include SK Rapid Vienna, spusu, NEOH, and Talent Garden.

Certificates

Qualifications.

2026
MongoDB Indexing Design
MongoDB / Credly
View →
2025
Kotlin Coroutines Mastery
JetBrains / kt.academy
2022
Google Play Store Listing Certificate
Google · ID 47262528
View →
Tech stack excerpt
Android·Kotlin·Jetpack Compose·Kotlin Multiplatform·Ionic·Capacitor·Angular·TypeScript·Node.js·MongoDB·Docker·Swift

How I
work.

No consultant theatre, no process overhead. I work where the code is written - close to the problem and close to the team.

My focus is the mobile Kotlin ecosystem: clean architecture from the start, without purity for its own sake. What remains maintainable wins.

I combine classic app architecture with AI-assisted development workflows to improve quality and delivery speed together.

Talks & Workshops

Sharing
knowledge.

I speak at conferences and with teams about Kotlin Multiplatform, app architecture, and practical AI use in software development.

Kotlin Multiplatform in practice
App architecture with Jetpack Compose
AI-assisted Development
Android modernization: legacy → modern stack

Formats: keynote, half-day workshop, or focused tech session with CTOs, product leads, and engineering teams.

Articles

Written.

EN How-To: Mount an ext4 partition on macOS
EN The Power of Bluebird's Promise.map()
EN Play Store: Violation of Metadata Policy - FAQs
EN Why you should use Pull Requests even as solo developer
Project home base

creative workline

When an idea needs to become a shipped product, creative workline is my company for engineering, design, and product thinking under one roof.

creativeworkline.at →
Project?

I am open to new projects, architecture conversations, and workshops. Send a few lines about your app, team, platform, and goal to office@creativeworkline.at.