BidYear Case Study: Architecting a Real-Time Auction Platform
How RelaxGen CTO Mehran Shafique designed BidYear's US real estate auction marketplace for concurrency and compliance.
Mehran Shafique · May 26, 2026 · 1 min read · 116 words
BidYear LLC operates a US real estate and land auction marketplace where bids arrive in bursts and dollars move under regulatory scrutiny. Mehran Shafique serves as Co-Founder and CTO, directing architecture from RelaxGen's engineering practice.
Concurrency first
Auction close moments create write spikes. Optimistic locking, queue-serialised bid processing and Redis-backed session state prevent double winners. Real-time UI uses WebSockets with fallback polling.
Compliance and payments
Know-your-customer workflows, audit trails and escrow integrations vary by state. Document every money movement. Separate bidding accounts from settlement.
Lessons for marketplaces
Start with one auction type, nail trust and payments, then expand categories. Microservices tempt early — a modular monolith often ships faster with clearer transactions.
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