Discovery, design and implementation of data migration for OSS/BSS applications for telecom company (Python, Oracle, PostgreSQL, CouchBase, PHP, K2View

Development and support of OSS/BSS WEB applications for pharmaceutical company (Python, SnowFlake, Flask, AWS, Docker)

Design, development, and support of OSS/BSS applications for telecom operators. (C/C++, Tcl, Python, JavaScript, PL/SQL, Oracle, MongoDB, Django, MongoDB)

Developing and support of system services for WebOS (C/C++, Node.js, Shell-scripting, Python)

Implementation of DNCSEC technology for .UA domain

Participation in .UA policy development

Development and implementation of DNS stats and analysis

Designed unique conception of cloud DNS services

Planning, designing, implementation, testing, deployment and maintenance of WEV/WAP digital content portal for Kyivstar subscribers.

(C/C++, Python, TCL, Shell-scripting, PL/SQL, Oracle, MySQL, PostgreSQL, XML, XLST, XHTML, SMS/MMS, DRM)

Administration of autonomous systems

Administration of Ukrainian Internet domains

Administration of company backbone

Research and development of logical an algebraic languages.