Validated server hardware and BMC/BIOS telemetry and automated the stress-test infrastructure around it, in a vendor stack where most of the kernels, images, and code were maintained by other teams. ● Automated stress testing: Bash and Python tools to drive test runs, parse logs, and analyze metrics across many targets, cutting execution time and manual error. ● Kernels and drivers: rebuilt Linux with vendor patches for hardware validation and traced driver, module, and hardware-level failures in code I had not written. ● BMC/BIOS telemetry: tested microcode and pulled hardware telemetry over Redfish APIs, validating remote management workflows. ● Component verification: exercised CPUs, GPUs, PSUs, RAM, SAS/NVMe, and NICs under functional and stress loads across custom target configurations. ● Test infrastructure: configured DHCP, PXE, NetworkManager, and Grafana alongside DevOps to refine target PXE images. ● Multi-target debugging: kept parallel remote test and debug sessions alive across server targets with tmux and zellij over unstable SSH; documented workflows in Confluence and coordinated Jira work across DevOps, BIOS/BMC, and MFQA.

QA for ALT Linux releases and RPM packages across six editions, including taking ownership of build failures in packages maintained by other people. ● Fixed packaging bugs owned by others: diagnosed build failures and repaired spec files with rpmbuild inside internal build environments, working directly with the package maintainers through Redmine. ● Verified package integrity: installation, dependency graphs, backward compatibility, regressions, and compliance with distribution standards. ● Ran concurrent test suites across 6 editions (Workstation, KWorkstation, Server, and others) to surface architecture- and edition-specific bugs before release. ● Boot and subsystem validation: system images over CD/DVD, USB, and PXE; core subsystems (GRUB, systemd, drivers) plus stress tests. ● Mixed test targets: physical hardware (PCs, laptops, tablets, all-in-ones) and virtual environments (QEMU, Proxmox, Docker), with Bash, Python, and Ansible for environment deployment.

Quality control for marketing campaigns and advertiser compliance on the Marketcall platform. ● Monitored marketing campaigns, audited English call logs, and monitored advertiser compliance on the Marketcall platform. ● Automated conversion tracking processes and created consolidated reports in Google Sheets; handled advertiser partnership escalations.

Managed portal operations and system workflows for grant applications. ● Managed portal operations, configured system workflows for grant applications, handled tier-2 customer support tickets, and worked alongside backend support teams.

Tier-2 technical support for Apple products, debugging a closed system from the outside and collaborating with global engineering teams. ● Reproduced and isolated complex OS-level bugs across iOS, macOS, watchOS, and iCloud by reading logs and system state rather than source code. ● Collaborated with global engineering teams in English via chat and phone to drive root-cause analysis, leading to upstream fixes in subsequent macOS updates.