- Creation of a web application for operational monitoring of dispatchers;

• Display on the operator's screen of the current state of objects in real time;
• Display of new alarms for objects in real time with the formation of sound notification;
• Formation of a log of operator actions when processing alarm events;
• DB architecture design
• Optimization SQL queries for existing programs.
• Creating view, procedure, triggers.
  

Telecommunication company providing telephony, data transmission, Internet connection and television services. Billing system.

• writing code to develop functionality and software support;
• optimization of packages, procedures, functions to support multi-user systems.

E-data portal. Web portal for public funds use.

• created package, function, procedure ,triggers;
• created database objects like tables, views, sequences, synonyms, indexes;
• creating and optimization of difficult SQL queries;
• working with large amounts of data, partitioning tables, indexing;

- monitoring, elimination of failures and their causes.

• development of new functions and modules on Java;

• application development, performance tuning;

• troubleshooting and functional issues;

• created package, function, procedure ,triggers.