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Hi, I’m Yaroslav Storozhyk, a Senior Android Engineer with 14+ years of experience delivering real-time, API-driven mobile applications. I focus on stabilizing existing products, optimizing performance, and delivering reliable features under real-world conditions. I’ve led mobile development across international projects for fintechs and enterprise platforms, handling asynchronous data flows, location-based logic, and network-heavy systems. I enjoy mentoring teams to ship robust, scalable solutions and thrive in fast-paced environments where quality and speed matter.…Hi, I’m Yaroslav Storozhyk, a Senior Android Engineer with 14+ years of experience delivering real-time, API-driven mobile applications. I focus on stabilizing existing products, optimizing performance, and delivering reliable features under real-world conditions. I’ve led mobile development across international projects for fintechs and enterprise platforms, handling asynchronous data flows, location-based logic, and network-heavy systems. I enjoy mentoring teams to ship robust, scalable solutions and thrive in fast-paced environments where quality and speed matter.

Yaroslav Storozhyk

App Developer, Full Stack Developer, Web Developer, +2

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Hi, I’m Yaroslav Storozhyk, a Senior Android Engineer with 14+ years of experience delivering real-time, API-driven mobile applications. I focus on stabilizing existing products, optimizing performance, and delivering reliable features under real-world conditions. I’ve led mobile development across international projects for fintechs and enterprise platforms, handling asynchronous data flows, location-based logic, and network-heavy systems. I enjoy mentoring teams to ship robust, scalable solutions and thrive in fast-paced environments where quality and speed matter.…Hi, I’m Yaroslav Storozhyk, a Senior Android Engineer with 14+ years of experience delivering real-time, API-driven mobile applications. I focus on stabilizing existing products, optimizing performance, and delivering reliable features under real-world conditions. I’ve led mobile development across international projects for fintechs and enterprise platforms, handling asynchronous data flows, location-based logic, and network-heavy systems. I enjoy mentoring teams to ship robust, scalable solutions and thrive in fast-paced environments where quality and speed matter.

Available to hire

Hi, I’m Yaroslav Storozhyk, a Senior Android Engineer with 14+ years of experience delivering real-time, API-driven mobile applications. I focus on stabilizing existing products, optimizing performance, and delivering reliable features under real-world conditions.

I’ve led mobile development across international projects for fintechs and enterprise platforms, handling asynchronous data flows, location-based logic, and network-heavy systems. I enjoy mentoring teams to ship robust, scalable solutions and thrive in fast-paced environments where quality and speed matter.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Language

Ukrainian

Fluent

English

Advanced

Work Experience

Senior Android Engineer at Fintech Company

October 1, 2023 - October 1, 2025

Led the development of mobile product features for a high-volume fintech application, focusing on real-time data flows and API-driven interactions. Improved stability of critical features, reduced crash rate by 21%, and increased success of user actions by 6% through performance optimizations and robust testing.

Senior Android Engineer - Enterprise Banking Platform at Enterprise Banking Platform

May 1, 2021 - July 1, 2023

Designed and implemented a modular, data-heavy mobile architecture; improved API-driven feature performance and ensured stability across edge cases. Collaborated with backend teams to handle real-time data updates and synchronization.

Senior Software Engineer (Android) at Freelance / Fintech Client Projects

May 1, 2019 - May 1, 2021

Developed high-traffic Android applications with a focus on performance and reliability; optimized data handling and networking using GraphQL and caching strategies; improved responsiveness and reduced latency for user-facing features.

Android Developer / Team Lead at International Client Projects

July 1, 2014 - May 1, 2019

Led Android development across multiple international client projects; established development workflows and reduced onboarding time through documentation and mentoring.