Vladas Lapinskas

At WA.Technology, I lead the extraction of a critical payments domain from a legacy PHP 5.6 monolith and build fault-tolerant Laravel services for complex iGaming payment flows. My work has reduced PSP integration time from roughly 4–6 weeks to about one week while improving predictability, observability, and compliance safety.

Previously at Blockpit, I improved critical API latency from approximately 18 seconds to sub-second responses for a crypto tax reporting platform processing billions of transactions. I proposed a PostgreSQL logical-replication architecture and helped modernize core services from a legacy LEMP stack to Laravel and PostgreSQL.

At PDMFC, I owned technical direction for a three-engineer micro-team delivering a regulated eCommerce and loyalty platform for Philip Morris International's IQOS product. The platform served around one million monthly users per country and scaled to two million during major campaigns.

I've also designed high-load banking and payment systems spanning card issuing, acquiring, EFT POS terminals, ATM networks, and a Poste Italiane payment platform tested at roughly 500 TPS. I focus on transaction correctness, idempotent workflows, resilient distributed systems, and predictable behavior under load.