Dmitri Chernysh

@dmitri_chernysh

Android Developer with local AI and LLM integration experience

Ukraine
English, Ukrainian
About me
As an experienced native Android App Developer with 10 years in the trenches, I help SMBs and startups fix "vibe-coded" apps, integrate on-device AI / LLMs, translate the vision into high-performance apps from 0 to launch, ship MVPs in weeks, and upgrade existing apps to comply with the latest Google Play requirements. ✅ 10 years of native Android experience ✅️ 30+ projects successfully delivered ✅️ 100k+ MAU app development experience ✅️ 4.5+ average rating across launched Google Play apps ✅ Under 0.1% crash & ANR rate across all launched apps ✅️ 5-star feedback from past clients... Read more

Skills

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dmitri_chernysh
Dmitri Chernysh
Offline • 
Average response time: 1 hour

See my services

Android App Development
I will upgrade target API level to meet google play requirements
From$100 / projectMore details
Android App Development
I will fix 16 kb memory page size compatibility for your android app
From$100 / projectMore details

Portfolio

Work experience

Self_Employed

Self Employed

Part-time • 1 yr 9 mos

Android Engineer / Founder of Screenshot Maker - Neonframe.app

Dec 2025 - Present • 8 mos

Make eye-catching screenshots with ease! This Screenshot Maker app is designed to help you create screenshots to share on Twitter, Instagram, LinkedIn, and others. Level up your social posts!

Android Engineer / Founder of Sign PDF - PDF Signer

Sep 2025 - Present • 11 mos

Sign PDF documents in a few seconds with realistic hand-drawn signatures. Secure and offline document signing tool without Ad. Helpful for PDF signing where you require the invoice signing, bill signing , agreement signing, etc.

Android Developer for AI Disc Golf Coaching app

Mar 2026 - May 2026 • 2 mos

My goal as an Android Developer on this project was to rebuild the core Pose Detection functionality in a "vibe-coded" app and optimize performance for an AI-powered Disc Golf coaching app. Additionally, I integrated Google OAuth and redesigned a Paywall screen for better UX. Tech stack: - Android SDK - Kotlin , Jetpack Compose - Mediapipe ( Google AI Edge ) for Pose Detection - Media3 , ExoPlayer for video