OSSystem Company Profile

OSSystem Website - OSSystem
Brief Overview

We’ve carefully researched DOU, Clutch, Linkedin and other relevant resources to create a list of the most reliable agencies out of 12,000+ Ukrainian IT companies. The OSSystem team is awesome and we can recommend them as a trusted software development partner.

Foundation Year:
Team Size:
Hourly Rate:
$25 to $50
Technology Focus
Contact Information

In the era of remote work, a traditional “brick-and-mortar” office is not necessarily needed. Yes, it would still be nice to meet for a coffee and talk face-to-face, but efficient and prompt online communication is much more crucial.

Phone Number:

Social media can provide valuable insights into a company’s life, people, culture, or career opportunities.

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Business Description & Company Leader

OS-System has been providing web and mobile development services since 2007 to both startups and large enterprises of any difficulty level. Our team of experienced professionals specialize in creating tailored backend and frontend solutions using the most suitable programming platforms and languages for each individual customer.

oleh sieroochenko - OSSystem
A true professional with solid experience in the IT industry who works hard on growing OSSystem and promoting Ukrainian tech talent on a global landscape.
oleh sieroochenko - OSSystem
Oleh Sieroochenko

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Special Features
Rated on Clutch
Reviewed on DOU
IT Cluster member
Verified on YouControl
Hire trainees or juniors
Multiple business locations
Volunteering initiatives
Contribute to open source

If you are about to start a new business with OSSystem or looking for reviews as a potential new employee, it would be wise to check the company’s reputation and reliability. Presence on popular platforms like Clutch.co or DOU.ua, local IT Cluster membership, verification of Ukrainian legal entity at YouControl and other valuable signs can help you make the right choice.

5 stars
4 stars
3 stars
2 stars
1 star
Willing to refer
Showing 1 - 11 of 11
Custom App Dev & Maintenance for Legal Tech Startup
Their project manager was consistently involved to ensure instructions were delivered clearly and timelines were met. CEO, Field QL Pty Ltd.
Custom Software Development for Audio Grade Brand
They’re an excellent team. Director Of Operations, Digigram.
Custom Software Development for Digital Agency
They are an outstanding, trustworthy partner. Founder, Digital Agency.
Web App DevOps for AI-Based Startup
The quality of communication and the quality of the work are the two big things for me. Co-Founder & CEO, AI-Based Startup.
Software Development for Social Mind Mapping Platform
The capacity to act to unforeseen problems impressed us. CEO, Linkfacts S.A..
I have been working in OSSystem for 3 months
During this time I have positive impressions. The company moves in the rhythm of modern IT companies, a huge opportunity for personal and professional development. When an employee passes the probationary period, they are given a welcome pack in the form of a T-shirt and a cup with the co […]
Web Application Development for Biotech Company
This is the best experience I've had so far with software developers. Head of Integrated Data Sciences, Biotech Company.
Wonderful people, excellent conditions for work, rest and self-development
Employees are valued and carefully selected with a serious emphasis not only on their skills, but also on the comfort of working with a person. NK
Great working atmosphere
Very friendly and responsive team. Great view of the sea from the office and fair management. The company does not stand still and develops itself as well as constantly develops its employees. Great place for career and personal growth. Sergey Bondarenko
Mobile App Dev for Desktop App Developer
OSSystem’s team was serious, professional, and highly skilled. CEO, Starsystem IT.
Mobile App Development Updates for Dating App
OSSystem’s background in our core technologies is what we were looking for in a partnership. CEO & Co-Founder, Dating App.
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