Mohammad Mainul Hasan

Available to hire

I’m a B2B lead generation and data annotation professional who enjoys turning messy information into clean, usable outputs for AI, analytics, and sales pipelines.

About

I’m a B2B lead generation and data annotation professional who enjoys turning messy information into clean, usable outputs for AI, analytics, and sales pipelines. With a research-driven mindset and a detail-oriented approach, I’ve supported international projects by finding accurate contact data, extracting genuine leads from web sources, and validating results to keep datasets reliable.

I’ve also worked deeply on precision annotation tasks—including floor plan segmentation using JSON data and masking—and contributed to enterprise AI model training through translation and evaluation of audio/video data. I enjoy combining structured research, careful quality checks, and analytical thinking to deliver actionable results for clients in real estate, interior design, and building materials.

  • Joined September 2026

Industry experience

  • Real Estate & Construction
  • Software & Internet

Projects · 2

Project description. This is a skill-building project focused on mastering pixel-perfect semantic segmentation. The objective was to achieve high-precision results for potential machine learning applications. I developed a workflow involving: Annotation: Using LabelMe to create precise polygons. Automation: Writing and testing Python scripts to fix polygon overlapping and pixel gaps in the JSON datasets. Quality Control: Achieving a 99.6% IoU score through rigorous audit processes.

  • Data Annotator

I provided end-to-end research support for a client targeting the Saudi Arabian housing sector. This involved: 1) Identifying residential project companies and their leadership (CEO/Owner level). 2)Extracting detailed unit data (Villas/Townhouses/Apartments) from the NHC/KSR portals. 3) Performing technical PDF editing to isolate floor plans for architectural review. 4) Deep-dive research into company project histories and future expansion plans.

  • Data Scraping Specialist

Work experience

AI model trainer · Scale AISep 2026 – Present · 3 mos

I am working with Scale AI in their Aether project as a freelancer

Education

Master of Social Science (M.S.S.) · Govt. City College, Chattogram2017 – 2019
Bachelor of Social Science (B.S.S.) Honours · Govt. City College, Chattogram2011 – 2017

Certifications and awards

MCSA2020 – 2022

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