# Huzaifa Sabah Uddin (Hexz) — Backend Developer & System Architect

> Backend developer portfolio of Huzaifa Sabah Uddin (Hexz) — Python, Django, PostgreSQL, Celery & Redis systems that replace enterprise tool stacks, saving $15.6K/year.

I build production-grade backend systems and REST APIs. Multi-tenant Django engines, async Celery pipelines, microservices, and custom SaaS infrastructure that replaces expensive enterprise tools. Based in Karachi, Pakistan — open to remote work worldwide.

## Core Pages

- Portfolio Home: Complete portfolio with about, skills, impact metrics ($15.6K saved, $92.9K revenue protected, 94% cost reduction), PM Engine architecture diagram, featured projects, and contact form. (https://iamhuzaifasabahuddin.github.io/Portfolio/)
- About: Background — Software Engineering (DIPHE) graduate from University of Leicester. Backend engineer specializing in Django, PostgreSQL, Celery, Redis, Java/Spring Boot, and multi-tenant SaaS architecture. (https://iamhuzaifasabahuddin.github.io/Portfolio/#about)
- Impact by the Numbers: Measurable results — $15.6K annual tooling savings, $92.9K revenue tracked/protected, 5 tools replaced by 1 engine, 94% cost reduction, 100% deadline record across 4 production systems. (https://iamhuzaifasabahuddin.github.io/Portfolio/#impact)
- The Toolbox: Technologies — Python, Java, Django, Flask, FastAPI, Spring Boot, PostgreSQL, MySQL, Redis, Celery, Docker, GitHub Actions, REST APIs. (https://iamhuzaifasabahuddin.github.io/Portfolio/#toolbox)
- Automation Pipeline: Four-stage process — Identify Bottleneck, Design Solution, Automate & Deploy, Measure Impact. (https://iamhuzaifasabahuddin.github.io/Portfolio/#automation)
- PM Engine Architecture: Multi-tenant Django project management system with PostgreSQL + PgBouncer, Celery + Redis, Slack API, AWS S3 presigned URLs, deployed on Railway. (https://iamhuzaifasabahuddin.github.io/Portfolio/#architecture)
- Featured Projects: 5 projects including PM Engine (flagship), IBM SkillsBuild simulation platform, Blink Publishing Dashboard, Ticket Management System, Cafe 1947 booking system. (https://iamhuzaifasabahuddin.github.io/Portfolio/#projects)
- FAQs: Technologies, flagship project, location, and measurable impact details. (https://iamhuzaifasabahuddin.github.io/Portfolio/#faq)

## Projects

- Project Management & Workflow Engine: Multi-tenant Django PM platform serving 4 client organisations. Replaced Basecamp, Asana, Trello, Slack bots, and spreadsheets. Saves $15,600/year. Stack: Django, PostgreSQL, PgBouncer, Celery, Redis, Slack API, S3, Railway. (https://production.topsoftdigitals.pk/)
- IBM SkillsBuild Simulation Platform: Full-stack Java 17 + Spring Boot simulation platform with Hibernate ORM and MySQL. Led team of 5 as Scrum Master to 2nd place nationally. (https://github.com/Iamhuzaifasabahuddin/Group37App)
- Blink Digitally Publishing Dashboard: Streamlit dashboard (~6,000 LOC) saving editorial team 12+ hours/week. Pandas, NumPy, Matplotlib/Seaborn, Google Sheets API, Slack bot. (https://github.com/Iamhuzaifasabahuddin/BlinkDigitally)
- Blink Digitally Ticket Management: End-to-end ticket system processing 200+ active tickets. Streamlit, Pandas, NumPy, Notion API, GitHub Actions cron. Reduced overdue items by 40%. (https://blinkdigitallytickets.streamlit.app/)
- Cafe 1947 Website & Booking System: Real-time booking engine replacing manual phone/paper system. Streamlit, Notion API, HTML/CSS, JavaScript. (https://www.cafe-1947.com/)

## Profiles

- GitHub: (https://github.com/Iamhuzaifasabahuddin)
- LinkedIn: (https://www.linkedin.com/in/huzaifa-sabah-uddin)
- Email: huzaifasabah@gmail.com

## Key Facts

- Based in Karachi, Pakistan — open to remote work worldwide
- Software Engineering (DIPHE) graduate, University of Leicester
- Backend Developer at Top Soft Digitals
- 4 production systems shipped with a 100% deadline record
- $15.6K/year tooling savings (94% cost reduction), $92.9K revenue tracked/protected
- 5 enterprise tools replaced by custom engines
- Primary stack: Python, Django, PostgreSQL, Celery, Redis, Java, Spring Boot, FastAPI, Docker

## Contact

- Website: https://iamhuzaifasabahuddin.github.io/Portfolio/
- Email: huzaifasabah@gmail.com
- GitHub: https://github.com/Iamhuzaifasabahuddin
- LinkedIn: https://www.linkedin.com/in/huzaifa-sabah-uddin