Oracle Development from a Software Outsourcing Provider in Ukraine
SYTOSS is a long-standing provider of custom software development services to the Telecom sector, and Oracle DB is one of the technologies we've been active in using ever since our company's inception.
Correspondingly, most of our client projects that involve the usage of Oracle DB, represent enterprise-grade, large-scale data-processing and development efforts, performed on behalf of major Western-European Telecom providers. All these projects are associated with the processing of terabytes of data across millions of customer accounts, as well as with the performance of other advanced data processing-related operations.
Languages, Tools, Technologies
- PL/SQL, SQL
- SQL Developer Data Modeler
- OCI, OCI Loader
- OLTP, Data Warehouse
- IBM WebSphere Application Server
- Java, OJDBC
- Migration and Archiving Technologies
- REST Data Services (JSON, XML)
- XML DB
Our Oracle DB development team is well-versed in data migration, data transformation, data consolidation, and data archiving.
In addition, the skills and expertise of our Oracle developers are complemented by the awesome DBA skills of our DevOps experts, who can fine-tune your DB to perform optimally.
Experience
Over the years that we have been working on the enterprise projects, SYTOSS has built a big and closely-knit Oracle DB Development team. The majority of the team members are full-stack Java and Oracle developers, and their Oracle development experience ranges from 2 to 15 years. Some 50% of our Oracle developers have 5-10 years of Oracle development experience.
Large-Scale Projects
Since our company's inception in 2010, we have gained experience in implementing extremely large, enterprise-level projects.
Oracle developers with consummate experience in Oraсle development for the Telecom sector constitute the core of our team.
Quick Start
We provide our clients with the ability to promptly allocate several highly qualified Oracle developers to enable an expeditious start of your project.
Our Lead Experts

Oleg Upakov
Release Manager
Oleg Upakov is an eminently qualified IT professional whose experience in the software development industry exceeds 20 years, including 8 years as a software engineer (7 years in Delphi development, including OOP development, 5 years in SQL development, and 1 year in C++ development).
Oleg has mostly been involved in the development of software and processing of large amounts of data for Telco clients but has also spent 3 years as a GIS developer. During the last several years, he has held the position of a Development & Release Manager responsible for several data-processing and other projects.
Oleg Upakov is a graduate of Zhukovsky Kharkiv National Aerospace University where he has earned a degree in Computer Science.

Eduard Stadchenko
Senior Oracle Developer / Project Lead
Eduard Stadchenko’s experience as a full-stack Java software engineer equals 7 years. For the last two years, he has been a PM and Team Lead on a major Telco project.
Eduard has a strong background in the development of Oracle-based applications. He is extensively experienced in the designing of a variety of technical solutions, as well as in the implementation and further adjustment of various organizational and technical procedures.
Eduard Stadchenko is a graduate of Kharkiv National University of Radioelectronics, where he has earned an MA degree in Software Engineering.