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Oğuzhan EkşiOE
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Oğuzhan Ekşi

@oguzhaneksi

Android engineer fixing production issues and building OTT streaming apps.

Turkey
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What I'm looking for

I work best with teams that have a real product and users, and an Android problem that needs ownership. I’m available for production rescue work, short diagnostic sprints, complex Android integrations, and contract delivery.

At Laser Revolver, I work as an Independent Android Consultant, helping companies diagnose and fix high-risk production Android problems. My work includes debugging, performance optimization, architecture modernization, and complex platform integrations.

At OSN, I was Android Engineer | Platform Lead for a TV OTT application. I built its multi-module architecture and core Media3/ExoPlayer playback experience, and reduced critical UI jank by up to ~30%.

At ERSTREAM, I helped move a hybrid app ecosystem to native Android TV and Amazon Fire TV. I modernized legacy Java code, cut cold-start times by ~40%, and maintained a greater than 99% crash-free rate across production apps.

Streaming is where I’ve built my specialist depth, working with Media3, ExoPlayer, HLS/DASH, and DRM. I also published two open-source Media3 SDKs, StreamProbe and Media3Watch, to Maven Central.

Experience

Work history, roles, and key accomplishments

Laser Revolver logoLR
Current

Independent Android Consultant

May 2026 - Present (5 months)

Worked as Independent Android Consultant at Laser Revolver.

OSN logoOS

Android Engineer | Platform Lead

Dec 2024 - Apr 2026 (1 year 4 months)

As the Android Platform Lead for OSN’s TV OTT application, I owned the end-to-end architecture and delivery of a flagship streaming product built for high-traffic B2B and B2C markets across the MENA region.

Here is what I actually delivered:

- Built a clean, multi-module architecture from scratch utilizing Jetpack Compose, MVI, StateFlow and Kotlin Coroutines, establishing a production-ready fou

ERSTREAM logoER

Android Developer

Feb 2020 - Dec 2024 (4 years 10 months)

I spent nearly 5 years architecting and scaling Erstream's native mobile and Connected TV (CTV) ecosystem, serving a global audience with high-performance live and VOD streaming applications.

Here is the impact I drove:

- Spearheaded the architectural shift from a sluggish hybrid (WebView-based) model to a fully native Android TV / Amazon Fire TV ecosystem, bypassing generic Leanback constraints

Freelance, self-employed logoFS

Android & Full-Stack Developer

Aug 2019 - Aug 2020 (1 year)

I wanted to deeply understand the full mobile ecosystem, so I architected and shipped a complete product from scratch as a solo developer, managing everything from the database to the native Android UI.

Here is the impact I drove:

- Full-Stack Architecture: Built and deployed a native Android application alongside a custom PHP RESTful API, MySQL database and a web admin dashboard.
- Product Owne

Aksan Yazılım logoAY

Intern

Jul 2018 - Aug 2018 (1 month)

Honestly, every engineer starts somewhere. This internship was my first real jump from academic theory to hands-on software development.

Here is the foundation I built:

- Practical Architecture: Developed a desktop e-commerce prototype from scratch utilizing .NET and a locally hosted MSSQL database.
- Core Business Logic: Implemented fundamental application flows, including user authentication,

Education

Degrees, certifications, and relevant coursework

YU

Yeditepe University

Lisans Derecesi, Bilgisayar Mühendisliği

2015 - 2020

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