data centre: Power, A/C, cabinets, double bottom, cabling, documenting (Netbox).
Technological upgrade of server systems, consolidation and full server virtualisation (VMware); we upgraded the virtualisation system (going from v4.2 to the current 6.0(5)).
Consolidated and integrated data servers, set up a central Microsoft SQL server, upgraded from v. 2003 to v. 2008 R2 and later (currently running v. 2016 cluster), optimized the system, set up a database backup system, implemented various schedules for inter-system data migration.
Upgraded DNS servers, installed an intrusion prevention system (DNS Sinkhole) in the DNS resolver, implemented a reporting system and statistics, and introduced monitoring.
Set up/separated test, development and production systems.
Planned, revised and upgraded directory services (AD, Windows Server 2016).
Integrated SSH login to admin system accounts (Centrify).
Upgraded data storage systems and corresponding FC switches.
Set up a system for regular patch installations for Linux and Windows (WSUS).
Set up system monitoring, including a text message notification feature (Nagios, Icinga, Foglight, PRTG, Microsoft Operations Management Suite (OMS), ATA): Servers, supervisor, emailing system, network devices, database management system (including a detailed tuning system).
All data migrations between apps and databases are encrypted; servers are signed with adequate certificates.
Complete upgrade of data backup systems (Veeam) under the 3-2-1-0 backup rule; terminated tracking system.
Setup and maintenance:
Imagine (DreamSpark) server;
Central MySQL setup;
VMware Horizon environment;
Host server system for internal and external apps.
Implemented a system to improve staff communications (Rocket.Chat).
Regulated the technical infrastructure of the Oracle system, Oracle Licence Review; joined the Oracle University programme.
POC for VMware Integrated OpenStack (VIO).