I’ve spent the last 5+ years building large-scale distributed systems in Golang, Java, and Spring Boot on GCP, handling up to 60K requests per second and driving over $2M in infrastructure savings. At Bluecore, I now focus on AI and GenAI systems: designing workflows that pick the right model for the job, cut unnecessary token usage, and keep costs low while scaling to 300M+ daily email sends. Alongside the work, I help engineers with resumes, interview prep, and practical ways to use AI in real system design. If you want clear, no-fluff guidance on any of these, let's sync, buddy.