- Operations and 24/7 support for large e-commerce solutions. - Building and deployment automation for number of critical business services and AWS platform infrastructure. - Setup of monitoring systems and metrics, identification, and resolution of performance bottlenecks. - Synchronization with external business systems via integration modules written in Python and storing analytical data into AWS RedShift cluster. - Cost optimization in AWS.

- Technical support of electronic payment services, administration of Windows Server, Linux. - Formation of statistical reports in Oracle SQL. - Interaction with acquirers (analysis and solution of disputable situations, erroneous write-offs of funds, processing complaints from users of e-commerce services, analysis of discrepancies in payment transactions with banks). - Processing / resolving customer issues in the event of any emergency situations while using the services of the company.

During the period of work as the head of the IT department (12 people in subordination), I achieved the following:• Automated 5 retail outlets in Gomel and 2 in the Gomel region.• Implemented a mechanism for the purchase of goods by their own employees in automated stores of their retail network using a plastic card against future wages.• The process of transition to a single database in all trade objects has been started.• The line of filling and packaging of bulk goods has been automated.• Organized and launched an online store.• Moved away from the 1C software maintenance (1C is a universal cloud and on-premise system of programs for automating a company's financial and wider operational activities) by a third-party organization and the implementation of program modifications by the efforts of full-time programmers.

Responsibilities:- Maintaining and developing the company's computer network (more than 250 PCs, 50 servers), - Automating new ones and transferring non-automated or partially automated trading objects to quantitative and total accounting.Registration of tenders for the purchase of equipment. Working with equipment suppliers.

Responsibilities: - Installation of LAN without access to public networks, service, LAN support. - Repair and adjustment of computer equipment. - Installation, configuration, maintenance of terminal servers 1C, SQL servers, terminal client services. - Administration of 1C, creating batch jobs, creating and configuring peripheral databases, automating data exchange in the main base - peripheral base scheme.