Sylwester Piotrowski Email & Phone Number

Warsaw, Pl

• Building and maintaining an efficient and effective hybrid environment,• Provide 3rd line Service Desk level support to users in Europe and Asia,• Develop and design network and computer systems infrastructure, including the integration of new technologies, ensuring compliance with operational requirements for security, performance, reliability, and scalability,• Writing detailed documentation, including design specifications and user manuals,• Administration of Windows and Linux systems,• Identifying inefficiencies by analysing network data and infrastructure.• Installation, configuration, testing and maintenance of operating systems, application software and system management tools,• Maintain security, backup, and redundancy strategies,• Writing custom scripts to automate tasks,• Partnership with 3rd party vendors and IT staff for problem resolution,• Conducting regular security assessments and audits (identifying gaps and vulnerabilities, recommending necessary changes with assessment of business impact, operating system and infrastructure hardening),• Developing, implementing and monitoring the performance of security measures to protect information and network infrastructure and computer systems,• Creating Security Reports,• Managing Access Controls,• Updating and Patching Systems (Azure Update Manager & Microsoft Intune),• Microsoft Sentinel (design, implementation, data connectors, custom log source configuration, incident response),• Threat detection and co-operation with SOC analysts,• Implemening Zero Trust solutions,• Microsoft Defender Antivirus / for Endpoint / XDR / for Identity / for Cloud Apps,• Endpoint protection,• DLP (Data Loss Prevention),• Developing well-defined processes and procedures,• Educating and training staff on best practices for information systems security.

Warszawa, Woj. Mazowieckie, Polska

• Microsoft solutions engineer• VDI Engineer (VMware Horizon & Microsoft Azure)• Conference speaker

Warszawa, Woj. Mazowieckie, Polska

• Managing and maintaining a large scale IT infrastructure (approx. 2k servers across 320 sites)• Leading a team providing infrastructure support at the client's headquarter

Warszawa, Woj. Mazowieckie, Polska

Warszawa, Woj. Mazowieckie, Polska

• Windows Server Systems Administrator• Active Directory• SQL Server• Microsoft Exchange• Virtualization• Infrastructure hardening• Backup and business continuity• Disaster recovery strategies• Technical support to users