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Portfolio : _Website not available. Sign in: https://www.twine.net/signup_ I’m Mehraz Hossain Rumman, a software engineer from Dhaka, Bangladesh, working in ad-tech and data-intensive backend systems. I’ve built and upgraded SaaS products from scratch and improved existing ones for performance, scalability, and reliable reporting—covering everything from API development and analytics pipelines to real-time data flows. I also enjoy open-source and research/engineering exploration. Through contributions to projects like pyOBIS, Scrapy, Celery, and DRF-extensions, plus my GSoC work on caching and ocean-science ML/SDM analysis, I’ve strengthened my ability to build, test, and iterate. Alongside engineering, I’ve been teaching Python as an online trainer—helping learners debug, understand core concepts, and grow problem-solving skills.…Portfolio : _Website not available. Sign in: https://www.twine.net/signup_ I’m Mehraz Hossain Rumman, a software engineer from Dhaka, Bangladesh, working in ad-tech and data-intensive backend systems. I’ve built and upgraded SaaS products from scratch and improved existing ones for performance, scalability, and reliable reporting—covering everything from API development and analytics pipelines to real-time data flows. I also enjoy open-source and research/engineering exploration. Through contributions to projects like pyOBIS, Scrapy, Celery, and DRF-extensions, plus my GSoC work on caching and ocean-science ML/SDM analysis, I’ve strengthened my ability to build, test, and iterate. Alongside engineering, I’ve been teaching Python as an online trainer—helping learners debug, understand core concepts, and grow problem-solving skills.

Mehraz Hossain Rumman

Developer, Online Trainer, Data Scientist, +4

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Portfolio : _Website not available. Sign in: https://www.twine.net/signup_ I’m Mehraz Hossain Rumman, a software engineer from Dhaka, Bangladesh, working in ad-tech and data-intensive backend systems. I’ve built and upgraded SaaS products from scratch and improved existing ones for performance, scalability, and reliable reporting—covering everything from API development and analytics pipelines to real-time data flows. I also enjoy open-source and research/engineering exploration. Through contributions to projects like pyOBIS, Scrapy, Celery, and DRF-extensions, plus my GSoC work on caching and ocean-science ML/SDM analysis, I’ve strengthened my ability to build, test, and iterate. Alongside engineering, I’ve been teaching Python as an online trainer—helping learners debug, understand core concepts, and grow problem-solving skills.…Portfolio : _Website not available. Sign in: https://www.twine.net/signup_ I’m Mehraz Hossain Rumman, a software engineer from Dhaka, Bangladesh, working in ad-tech and data-intensive backend systems. I’ve built and upgraded SaaS products from scratch and improved existing ones for performance, scalability, and reliable reporting—covering everything from API development and analytics pipelines to real-time data flows. I also enjoy open-source and research/engineering exploration. Through contributions to projects like pyOBIS, Scrapy, Celery, and DRF-extensions, plus my GSoC work on caching and ocean-science ML/SDM analysis, I’ve strengthened my ability to build, test, and iterate. Alongside engineering, I’ve been teaching Python as an online trainer—helping learners debug, understand core concepts, and grow problem-solving skills.

Available to hire

Dhaka, Bangladesh

Portfolio : Website not available. Sign in: https://www.twine.net/signup

I’m Mehraz Hossain Rumman, a software engineer from Dhaka, Bangladesh, working in ad-tech and data-intensive backend systems. I’ve built and upgraded SaaS products from scratch and improved existing ones for performance, scalability, and reliable reporting—covering everything from API development and analytics pipelines to real-time data flows.

I also enjoy open-source and research/engineering exploration. Through contributions to projects like pyOBIS, Scrapy, Celery, and DRF-extensions, plus my GSoC work on caching and ocean-science ML/SDM analysis, I’ve strengthened my ability to build, test, and iterate. Alongside engineering, I’ve been teaching Python as an online trainer—helping learners debug, understand core concepts, and grow problem-solving skills.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Work Experience

Remote Contributor at Google Summer of Code / Integrated Ocean Observing System

July 31, 2025 - August 14, 2025

Implemented advanced HTTP caching in the pyOBIS Python package to optimize performance of API calls. Conducted data analysis and visualization on ocean science datasets and created interactive Jupyter notebooks for reproducible research. Developed and tested machine learning models for ecological and environmental datasets applying Species Distribution Modeling techniques to study biodiversity.

Google Summer of Code Remote Contributor at Integrated Ocean Observing System

May 1, 2025 - July 31, 2025

Implemented an advanced HTTP caching feature in the pyOBIS Python package to improve performance for repeated API calls. Performed data analysis and visualization for ocean science datasets with Python, created interactive and reproducible Jupyter notebooks, and developed/testing machine learning models for ecological/environmental data. Applied Species Distribution Modeling (SDM) techniques to analyze spatial patterns and biodiversity, and prepared a final report linked in the resume.

Software Engineer at Adfinix

July 1, 2024 - Present

Developed the backend from scratch for Adsloft, a SaaS product used for real-time tracking and reporting of DSP/SSP clicks, impressions, and views. Created a high-performance, responsive website for Adsloft using Next.js. Upgraded the Adfinix SaaS product from Django 3.2 to 5.1, fixing bugs and optimizing code for scalability. Implemented new features such as CPM and frequency capping, developed rich media ads, and worked with OpenRTB protocols to support real-time bidding including building mock servers for testing.

Trainee Software Developer at TrendBreaker

May 31, 2024 - August 14, 2025

Developed a desktop application using PyQt5 to improve user interaction and productivity. Built a React Native mobile app with Django backend to enable cross-platform functionality. Engaged in data analysis projects to support business decisions.

Online Python Trainer (Remote Freelance)

November 1, 2022 - Present

Teach Python programming from beginner to intermediate level. Help students debug code, interpret errors, and strengthen problem-solving skills. Introduce data structures and algorithms fundamentals, run weekly exams and coding challenges, and guide students with practical approaches to programming problem solving.

Online Python Trainer at Freelance

November 1, 2022 - Present

Teaching beginner to intermediate Python programming to students remotely, including debugging support, core concepts of data structures and algorithms, as well as conducting regular exams and coding challenges to monitor progress. Guiding practical problem-solving approaches and programming best practices.

Trainee Software Developer at TrendBreaker

April 1, 2022 - May 31, 2024

Built a desktop application using PyQt5 to improve user interaction and productivity. Developed a React Native mobile app and designed a Django backend to deliver a cross-platform experience. Worked on data analysis projects to provide insights that support business decisions.