Konstantin Kustau
Mobile Architect Fractional CTO at Independent Consultant (Wyoming C-Corp)
Berlin Metropolitan Area Germany
Summary
👤
Senior🎓
Top SchoolKonstantin Kustau is a Mobile Architect and Fractional CTO with a decade of hands-on experience designing and shipping high-performance mobile products for startups and large enterprises. He specializes in cross-platform Kotlin Multiplatform solutions, on-device and cloud AI integration, and modern architectures (MVI/MVVM, Clean Architecture, SDUI, Jetpack Compose) that reduce technical debt and speed delivery. Konstantin has repeatedly improved performance and reliability—cutting load times by up to 50%, memory use by 20–30%, and post-release bugs by nearly 20% through automated testing and rigorous refactoring. He has led technical builds from zero to market, including an online education platform delivered ahead of schedule and an e-commerce app serving 10M+ users that increased revenue and acquisition through UX and performance improvements. As an independent consultant based in Berlin, he offers fractional CTO engagements and C2C/1099 consulting to help teams scale to millions while trimming costs and complexity. Beyond architecture, he blends technical leadership with measurable product impact—often surfacing non-obvious optimizations that unlock both developer velocity and user growth.
10 years of coding experience
6 years of employment as a software developer
Master of Science (M.S.) Information Technology Engineering, Master of Science (M.S.) Information Technology Engineering at Belarusian State University of Informatics and Radioelectronics
Russian, English, Russian
Github Skills (11)
parser4
converter3
java3
retrofit2
html2
material-design1
material-ui1
android-sdk1
api1
docker1
android1
Programming languages (1)
Github contributions (5)
KonstantinKustau/PottoSales-KotlinCleanArchitecture
Aug 2020 - Nov 2022
Contributions:8 commits, 9 pushes, 3 branches in 2 years 3 months
KonstantinKustau/CV
Dec 2019 - Jul 2022
Contributions:69 pushes, 1 branch in 2 years 6 months
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