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Marco GeierMG
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Marco Geier

@marcogeier

Principal Software Engineer at ScreenCloud who took ScreenCloud OS from initial development to production.

Thailand
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At ScreenCloud, I proposed and drove ScreenCloud OS from initial development through production, serving as its technical owner and primary platform implementer. The platform reached approximately 60,000 deployed devices by October 2025, and I worked across hardware selection, Buildroot Linux, U-Boot, and Chromium.

Since January 2025, I’ve developed private Rust systems for real-time Solana data processing, transaction execution, and machine-learning inference. I also created Oversec, an Android privacy application, designing its architecture and cryptography and implementing the app.

Experience

Work history, roles, and key accomplishments

Oversec logoOV
Current

Founder, Architect & Developer

Oversec

Jan 2016 - Present (10 years 10 months)

Created an Android privacy application, designed its architecture and cryptography, implemented the app, and established CI and Play Store deployment.

MI

Lead Android Developer

Munity Inc.

Sep 2016 - Oct 2018 (2 years 1 month)

Customized and virtualized Android for cloud deployment, designed APIs/protocols, and implemented the Android thin client. Led a three-developer team and built Docker/Jenkins CI.

CS

Lead Android Developer

Confidential Startup

Jun 2014 - Jul 2016 (2 years 1 month)

Customized Android OS storage and communications security, contributed to client architecture, and established build/CI processes.

OO

Senior Android Developer & Consultant

Oozou

Mar 2014 - Jun 2014 (3 months)

Provided Android implementation and API/usability improvements.

Education

Degrees, certifications, and relevant coursework

Karlsruhe Institute of Technology logoKT

Karlsruhe Institute of Technology

Diplom-Ingenieur (TH), Electrical Engineering

Diplom-Ingenieur (TH) in Electrical Engineering with a specialization in Control Engineering.

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