Vlad Terekhov

At ITKey Tech, I build and modernize core services for an OpenStack-based cloud platform that manages virtual infrastructure.

I migrated complex search workloads from PostgreSQL to OpenSearch, reducing API response times by 90–96%, from more than 30 seconds to 1–5 seconds. I also refactored thread-pool services into fully asynchronous asyncio architectures to reduce CPU usage and improve throughput under high load.

I maintain GitLab CI/CD pipelines and comprehensive Pytest unit, integration, and end-to-end suites with more than 90% test coverage. I’ve implemented encryption with key rotation, fuzz-tested critical components with Atheris, and am designing a highly available hypervisor and virtual machine lifecycle service targeting 99% uptime.

Earlier at AtomST, I built a Flask application for automated security knowledge assessments for more than 150 employees and administered enterprise security systems including firewalls, VPN, endpoint protection, DLP, Active Directory, and Group Policies.