Back
Avatar

Oleksandr
Havrylenko

Average Review
0.00
Reputation
9
Finished gigs
0
Finished jobs
0
Website
Not specified
Country
Not specified
Specialization
Android Mobile Developer (Kotlin)
Hourly rate
$23/hr
Preferred payment options
Ethereum
ETH
USDT
TIME
AUDT
USDC
DAI
WBTC
MATIC
SLP
CGU
SHIB
FLOKI
BONE
CRVUSD
GAL
BABYDOGE
BAT
GTC
SHEB
BNB Chain
USDT
TIME
USDC
DAI
BNB
BUSD
BTCB
MATIC
SLP
CGU
SHIB
FLOKI
SIS
GAL
BABYDOGE
Polygon
USDT
TIME
USDC
DAI
WBTC
MATIC
CGU
Fantom
USDC
DAI
FTM
BRUSH
Arbitrum
ETH
USDT
USDC
DAI
ARB
Optimism
ETH
USDT
USDC
OP
Base
ETH
USDC
About me
Hi, I'm [Oleksandr], an Android Developer (Kotlin) specializing in complex mobile architecture and high-performance Frontend. I don't just build standard screens — I engineer secure, fast, and scalable mobile experiences. My core expertise includes: 🔸 Frontend & UI/UX: Creating pixel-perfect, responsive, and smooth interfaces. 🔸 Engineering & Architecture: Structuring scalable apps and solving non-standard technical problems. 🔸 Advanced Features: Custom networking (high-speed P2P data transfer), integrating camera-based gesture recognition, and implementing strong data security/encryption protocols. I combine critical thinking with clean code to deliver products that work flawlessly. If you need a developer who can handle both beautiful UI and hardcore logic under the hood — let's get to work!

Work experience

Recklet Group
May 2023 – Current time
Job title
Lead Android Engineer & UI Architect
Work experience & achievements
Founded and led the technical development of FoneSend, a high-performance secure messaging ecosystem. My role involved architecting the entire mobile infrastructure from the ground up, ensuring a perfect balance between military-grade security and a premium user experience. Key Achievements: Engineered WaveDrop Protocol: Developed a custom P2P data transfer protocol for sub-100ms profile synchronization and serverless media sharing. Advanced UI Engineering: Designed and implemented a complex design system using Jetpack Compose, AGSL Shaders, and Canvas API, featuring custom physics-based animations and Arc Motion transitions. Security First: Integrated robust encryption standards (AES-256-GCM, ChaCha20-Poly1305) and explored post-quantum cryptography implementations to ensure maximum user privacy. Optimization: Optimized rendering pipelines and resource management, achieving fluid 120 FPS performance even with complex visual effects and hardware-accelerated shaders.

Education

Not specified