Sergiy Osypov, Developer in Mountain View, CA, United States
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Sergiy Osypov

Verified Expert  in Engineering

Full-stack Developer

Mountain View, CA, United States
Toptal Member Since
September 23, 2022

Sergiy is a full-stack software engineer focusing on both the front and back ends. He is always on the lookout for exciting projects. His experience includes working at a FAANG company as a software engineer developing performant services and modern single-page applications. Sergiy has also participated in hackathons and won several of them.



Preferred Environment

Linux, Visual Studio Code (VS Code)

The most amazing... experience I've had so far was my seven-year dev experience as a contractor at Google.

Work Experience

Senior Full-stack Developer

2015 - 2022
  • Built pipeline services to manage and convert data from different sources, including AWS, databases, and raw files, to Google Cloud.
  • Developed and maintained internal services for fiber internet provider account management.
  • Constructed back-end services and a front-end single-page application for an agricultural startup for farmers, breeders, and so on.
Technologies: JavaScript, Java, Python, SQL, Linux, Software Engineering, Go

Agricultural Maps and Predictions App for Farmers, Breeders, Growers, and More
A machine learning-based solution that provides predictions and maps for agricultural businesses and aids them in developing new technologies to build a more sustainable, resilient, and productive food system. This project included robotics, sensing, and software tools to collect and interpret diverse data from the field.

Data-transfer Tool for Database Data and File Migrations from AWS to Google Cloud

A JavaScript and Java-based project that utilized microservices and the Angular framework to provide control over the data transfers from different sources, including AWS, databases, and raw files, to corresponding instances of the Google Cloud platform.
1999 - 2004

Master's Degree in Informatics and Applied Mathematics

Zaporizhzhya State University - Zaporizhzhya, Ukraine





React, Node.js


Angular, Next.js


JavaScript, Java, SQL, TypeScript, Python, Go


Linux, Oracle, Visual Studio Code (VS Code)


MongoDB, PostgreSQL




Software Engineering, Web Development, Front-end

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