Open to opportunities

Hariss Mansoor

@harissmansoor

Message

I build reliable Ruby on Rails SaaS platforms and high-performance backend systems.

Pakistan

Message

What I'm looking for

I'm looking to build and lead reliable SaaS and backend systems, owning architecture through production support while working with remote teams on meaningful, high-impact products.

I've built and shipped production SaaS products for XPROLABS, SQUARE63, Junglebee, AudioSocket, GOGov, Omniscriptum, and Climatebase. At Junglebee, I reduced calendar load times by roughly 70–89%, redesigned live booking scheduling, and stabilized production by resolving Sidekiq and Puma memory pressure.

I lead teams while remaining hands-on across Ruby on Rails architecture, REST APIs, PostgreSQL performance, payments, background jobs, AWS deployments, testing, and production incident follow-through. I've also delivered licensing systems, local-government microservices, multi-imprint publishing operations, and multi-tenant climate careers APIs.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer / Team Lead

Current

XPROLABS

Jul 2023 - Present (3 years 1 month)

Hands-on lead across client SaaS products, primarily Ruby on Rails. On Junglebee, ships core features, leads a pod of 2 backend engineers, 1 frontend engineer, and 1 QA, and owns release quality plus production incident follow-through.

Software Engineer Level 2

SQUARE63

Mar 2021 - Jul 2023 (2 years 4 months)

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