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MehrazRumman/README.md

Hi, I'm Mehraz Hossain Rumman 👋

Python Software Engineer & AdTech Engineer in Dhaka, Bangladesh. I build real-time bidding (OpenRTB) backends, Python automation and web scrapers, and I tutor Python online.

  • 💼 Software Engineer at Adfinix: AdTech backends with Django, DRF, ClickHouse and MongoDB (DSP/SSP tracking, CPM ads, frequency capping, real-time analytics)
  • 🌊 Google Summer of Code 2025 contributor with IOOS (pyOBIS)
  • 🛠️ Open-source contributor with merged PRs in Celery, Kombu, Django REST Framework, Scrapy and Django
  • 🕷️ Automation & web scraping developer: Scrapy / Playwright scrapers that turn websites into clean datasets, Slack bots, workflow automation
  • 🏆 Competitive programmer (C++): 1,750+ problems solved on Codeforces (max Specialist), 3★ on CodeChef
  • 🎓 Python tutor since 2022: beginner to intermediate Python, data structures and algorithms

What I work on

Area Tools
Backend / Python development Python, Django, Django REST Framework, FastAPI, Celery
AdTech OpenRTB 2.5, real-time bidding, DSP/SSP, impression & click tracking
Data ClickHouse, PostgreSQL, MongoDB, pandas, Jupyter
Automation & scraping Scrapy, Playwright, requests, BeautifulSoup, Slack bots
Other C++, Go, Docker, Jenkins, CI/CD, Next.js

Featured projects

Find me

Open to Python developer, AdTech engineer, automation / web scraping and Python tutoring work.

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  1. encode/django-rest-framework encode/django-rest-framework Public

    Web APIs for Django. 🎸

    Python 30.2k 7.1k

  2. gortb gortb Public

    OpenRTB 2.5 implementation in Go: typed structs and validation for real-time bidding (RTB) DSPs and SSPs. AdTech library.

    Go 7 1

  3. celery/celery celery/celery Public

    Distributed Task Queue (development branch)

    Python 29.1k 5.3k

  4. scrapy/scrapy scrapy/scrapy Public

    Scrapy, a fast high-level web crawling & scraping framework for Python.

    Python 65.2k 12.1k

  5. fastapi-observer fastapi-observer Public

    Structured request logging, observability middleware, and a built-in event dashboard for FastAPI.

    Python 4

  6. python-web-scraping-automation python-web-scraping-automation Public

    Python web scraping & automation examples: requests + BeautifulSoup, Playwright for JavaScript sites, and a Scrapy spider. Retries, pagination, CSV/JSON export, tests.

    Python