Alex Kog

Applied QA & LLMOps: RAG bot (Python, pytest, llama_index, hybrid retrieval, reranking, dual-LLM routing), circuit breaker, rate limiting, structured logs. Prompt QA via deterministic frameworks and regression suites. 100+ SDXL/ComfyUI tests (seed control, A/B, diffing). Reproducibility rules for LLM/SDXL. Parse: QA for LLM-web app, model alignment checks, billing audits, severity/impact reporting.

Senior QA Lead for Salesforce & Mulesoft platforms (EU/UK). Built API/Web UI automation (Postman, SOQL/Apex, Oracle PL/SQL), ensured PCI-DSS-compliant client-server flows, standardized test management (Jira-Zephyr), and created QA architecture for multi-service systems with stable remote releases. Mentored QA engineers and partnered with POs to improve backlog quality. Focus: Salesforce integrations, data-driven testing, regression readiness.

Built QA and performance testing from scratch for a Java-based smart-home client/server platform. Introduced structured test planning, custom load-testing with degradation tracking and GC tuning, ensured system stability and scalability. Designed test environments for RTSP/OnVif/Modbus/SNMP, managed full QA lifecycle for B2B portals, authored documentation, scaled QA team, and led demos at major tech expos. Tools: JMeter, Wireshark, SQL, Linux.