Igor Tymoshenko Email & Phone Number

Kiev

Kiev

- Providing 2nd level support to internal and external customers. Exchanging information with the 3rd level support.- Providing fail-safe operation of Messaging Service Platforms. Ensure the system’s availability according to scorecard.- Changes implementation and integration of new solutions for Messaging Service Platforms. Basic analysis of technical part for VAS-related projects.- Implementation and improvement of Messaging Service Platforms monitoring.- Support of VAS Messaging Service Platforms network configuration changes (both IP and SS7), hardware installations and changes.Projects:- Release upgrade of USSD application servers to a new version(functional testing was performed via soapui; deploy of a new version of software to glassfish application servers was performed using jenkins).- New log monitoring conception for USSD and Messaging application servers(log4j, fluentd agents, elasticsearch, python and zabbix).- MMSC release upgrade and switch to a new cloud infrastructure(vmware vsphere, redhat 6-7, percona db, ansible, zabbix).- Improved smtp service on Bulk SMSC(in front of postfix was installed and configured postfwd for correct rate limitation of customers connections).

Kiev

- Configuration and support A2P SMS platform - creating and testing new accounts, routing tables, new operators and HUBs connections.- 2-nd level support for client’s and operator’s connections - SMPP, SMTP, HTTP(S)/XML, FTP, CPI, SS7, MM7.- Interaction with customers and vendor.- Fault reporting, troubleshooting.- Configuration, testing, implementation new call flows.

Kiev

- Control and analysis quality of services.- Organization and control of shift engineers.- Development of regulatory documents (FAQs, instructions, procedures).- Updating information in support knowledge base.- Working with OTRS, system modification according to requirements.- Creating new monitoring in Zabbix(data items, graphics, etc.).

Kiev

- Monitoring and control working capacity of network equipment, service platforms and communication channels.- Providing 1st level support, localization and elimination of problems and faults as part of competence.- Escalation of issues to higher levels of support, control of troubleshooting and recovery of equipment and platforms.- Providing information and technical support to customers.