Hariss Mansoor

I'm looking to build and lead reliable SaaS and backend systems. I own architecture through production support and work with remote teams on high-impact products.

I've shipped production SaaS at Xprolabs and Square63 for remote clients. On a tour and charter booking product, I cut calendar load times by ~70-89%, redesigned live booking scheduling, and stabilized production by fixing Sidekiq and Puma memory pressure.

At Xprolabs I am a hands-on lead across client SaaS, primarily Ruby on Rails. I ship core features, lead a pod of 2 backend engineers, 1 frontend engineer, and 1 QA, and own release quality plus production incident follow-through.

At Square63 I led technical direction, peer reviews, and releases as Team Lead while staying hands-on as a backend engineer. I built AWS staging and production on EC2, NGINX, and Passenger, and fixed critical N+1 and eager-loading failures in deep playlist trees.

Day to day I work across Ruby on Rails architecture, REST APIs, PostgreSQL performance, payments, background jobs, AWS, testing, and production support. That includes licensing systems, local-government microservices, multi-imprint publishing operations, and multi-tenant climate careers APIs.