Hassan Rehan Memon
@hassanrehanmemon
Full-Stack engineer building SaaS and distributed systems on AWS.
PakistanWhat I'm looking for
I’m a Full-Stack Engineer with 5+ years of experience building SaaS products and backend systems. I bring hands-on expertise across product, infrastructure, and deployment workflows, with a strong focus on reliability and shipping production features.
As a Lead Software Engineer at Parhako (AI SaaS), I’ve led backend architecture and development using Next.js, Express, TypeScript, PostgreSQL, Docker, and AWS. I also built an LLM orchestration layer that coordinated 100+ API keys with rate limiting, retry logic, fallback strategies, and load distribution—reducing inference costs while maintaining reliability.
I’ve architected AI processing pipelines for high-throughput MCQ generation and real-time systems for live mock tests, concurrent sessions, and leaderboards. To improve output quality, I introduced validation passes using regex checks and secondary LLM verification before results reach users.
Previously, I managed Django data pipelines on HPC clusters, resolving orchestration race conditions and cutting processing time by 70%. Across teams, I’ve consistently improved CI/CD stability, decoupled monorepos for maintainability, and shipped backend services and integrations that support real business outcomes.
Experience
Work history, roles, and key accomplishments
Lead Software Engineer
Parhako
Mar 2025 - Present (1 year 3 months)
Led backend architecture for an AI SaaS platform, building an LLM orchestration layer that coordinated 100+ API keys with rate limiting, retries, fallbacks, and load distribution to improve reliability and reduce inference cost. Built real-time mock test systems (concurrent sessions and leaderboards) and added validation passes with regex checks and secondary LLM verification to prevent bad output
Senior Software Engineer
TopDevSpace LLC
Apr 2024 - Feb 2025 (10 months)
Managed Django data pipelines on HPC clusters and resolved orchestration race conditions, cutting processing time by 70%. Built backend services and integrations for AWS Elasticsearch and LLM-based automated financial reporting workflows.
Software Engineer
TopDevSpace LLC
Aug 2023 - Mar 2024 (7 months)
Decoupled a large Angular and Node.js monorepo into separate repositories, fixing recurring CI/CD failures and unblocking delivery. Delivered an SaaS MVP in four sprints using NestJS and PostgreSQL, improving deployment workflows and backend maintainability across multiple services.
Software Engineering Intern
Bitnine Global Inc
Apr 2023 - Sep 2023 (5 months)
Created PostgreSQL and Sequelize documentation and supported developers with database engineering guidance. Answered 40+ PostgreSQL questions on StackOverflow reaching roughly 29,000 developers, and built frontend components for a database visualization dashboard.
Software Engineering Intern
Erays Technology
Apr 2022 - Jun 2022 (2 months)
Built a real-time foot posture heat-map visualization system using JavaScript, Python, and SVG rendering. Wrote interpolation and SVG transformation scripts to convert sensor data into smooth, informative visual maps.
Freelance Software Engineer
Incio
Jun 2020 - Jan 2022 (1 year 7 months)
Built scheduling and meeting integrations using Zoom and Google Meet APIs. Developed invoicing and calendar modules for a business management SaaS platform, implementing backend and frontend features with React, Node.js, and MongoDB.
Education
Degrees, certifications, and relevant coursework
National University of Sciences and Technology (NUST)
Bachelor of Engineering in Software Engineering, Software Engineering
2019 - 2023
Bachelor of Engineering in Software Engineering at NUST from Sept 2019 to June 2023.
Tech stack
Software and tools used professionally
Availability
Location
PakistanAuthorized to work in
Website
hrmemon.github.io/portfolioPortfolio
hrmemon.github.io/portfolioSocial media
Job categories
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