# Expert System Design Coaching from a Hashicorp Engineer With over 6 years of experience building high-scale distributed systems, I bring real-world expertise to help you master system design interviews. My background spans: ## Technical Experience - **High-Scale AdTech Backends**: Built real-time bidding systems and analytics platforms processing billions of requests - **Payment Infrastructure**: Developed payment systems handling millions of daily transactions with strict reliability requirements - **Distributed Systems at Hashicorp**: Currently engineering Consul, the industry-leading service mesh technology at Hashicorp (creators of Terraform) My unique experience across critical infrastructure domains gives me insight into the exact patterns and principles top tech companies look for in system design interviews. I've navigated the technical challenges of building systems where scale, performance, and reliability cannot be compromised.