Andrei Smirnov

Managed 15 complex web applications operating on Linux, deployed approximately 170 new features. Achieved a 40% improvement in bug and error resolution through close collaboration with developers. Eliminated manual work by 60%. Created scripts for software updates while effectively managing and resolving associated bugs, ensuring minimal disruption to system operations. Planned, built, and deployed a 7 node server cluster, resulting in a high availability compute system hosting 150 virtual machines.

Scaled the entire infrastructure of a newly established company within a short time-frame to accommodate a rapidly increasing user base, we grew from 30 to 450 employees in 2 years, ensuring seamless operations and optimal performance. Migrated 43 virtual machines from ESXi to oVirt cluster, enabling swift and almost effortless resource scaling. Monitored 78 network items to ensure reliability and efficiency. Performed disaster recovery using QEMU and KVM CLI and saved a 15 various VMs with 9TB of data.

Helped to find and fix 13 critical bugs in the system, closely collaborating with business users, analysts and developers. Solved on average 15 tickets a day, while sustaining required SLA metrics. Assisted in refactoring of 25 parts of legacy code.

User tech support via ticket system and by call. (1000+ users) Deployment of new machines and upgrading used PCs (towers, laptops and AIOs) Inventory tracking, ordering and maintenance. MS AD, Exchange, FS Physical network refactoring.