Leading engineering teams working on the development of integration with On-Premise Exchange Hosting and Microsoft Exchange Online, own implementation of Email Protection, integration of third-party Email Archiving, Email Encryption and Email Backup services for both types of hosting. Deep integration with Microsoft 365, including automating the management of tenants, users and M365 subscriptions from a single control panel.

Led a Scrum development team responsible for the development of a highly reliable email filtering system.

Development of a highly loaded email filtering system and related backend microservices.

Design and development of IoT and multimedia systems such as video wall controller and smart home control system, including microcontrolles programming for core/sensors/devices.

Managing the process of server/multimedia/network/wireless/video equipment deployment, selection, justification, maintenance contracts for information systems, server and telecommunication equipment of the company's clients, pre-sales evaluation of project budgets, negotiations with providers.

Internal support engineer, traditional and IP telephony, support for electronic tendering systems, design, management, and maintenance of company's small office infrastructures.

A variety of activities, both independently and working in small companies, which included:• Web-site design and development, web-server deployment and configuration;• Administration of small networks and servers, mostly Windows;• Design and commissioning of data networks and video control of offices and private houses;• Setting up wireless networks and Internet access for remote sites;• Selection of components for workstations, configuration of workstations, installation of various software customisationFor a few years during education period I participated in the design of expansion of the computer network of university where I studied, set up network services - traffic analysis, printing, scanning services, including tariffication of paid access to services for students. Selected and organised the purchase of necessary equipment, tools, consumables, and planned the work.