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Subhojit S.
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Subhojit S.

Manual QA Tester | AI/ML Data Annotator | Data Validation Specialist

Hi, I'm Subhojit — an India-based Manual QA Tester and AI/ML Data Annotator with native fluency in Bengali and English, delivering reliable, detail-oriented work across QA testing, data annotation, and document/data operations. I help businesses catch what others miss — especially in projects where small errors carry a big cost. I run full QA test cycles for mobile apps and websites, and build clean, guideline-compliant training data for AI/ML models, including underserved languages like Bengali. 🔹 QA Testing Expertise ✔ Functional, End-to-End & Usability Testing ✔ Smoke testing for quick release validation ✔ Cross-platform & multi-device testing ✔ Bug reports with clear repro steps, expected vs. actual results, and structured screenshots 🔹 Available Devices 📱 iOS device 📱 Multiple Android devices 💻 Mac mini (macOS) 🖥️ Windows 11 PC 🌐 Cross-browser testing (Chrome, Edge, Firefox) → Full cross-platform testing setup 🔹 AI/ML Data Annotation 🔸 Image & video annotation — bounding boxes, polygons, classification, basic segmentation (CVAT, Label Studio; familiar with Labelbox, SuperAnnotate) 🔸 Labeled and structured raw soccer match video footage and images to project guidelines 🔸 Organized and logged 80–100GB of raw video footage per shoot into structured, editor-ready folders (ongoing project) 🔸 Audio and text annotation in Bengali and Indian English — a language pair few annotators can cover accurately 🔸 Annotation review, error correction, and consistency QC across high-volume datasets 🔹 Document & Data Handling 🔸 Structured document processing (PDFs, spreadsheets, reports) 🔸 Data extraction, organization, and formatted output creation 🔸 Market/operational research, data verification, and summary reporting 🔹 Why Clients Keep Me ✔ Read the full guideline before starting — flag ambiguity instead of guessing ✔ Self-review every submission before handoff ✔ Consistent 9-10/10 accuracy across dozens of audit and QA assignments, zero rejections ✔ Comfortable with confidentiality, structured requirements, and deadline-driven work Professionalism ✔ Accuracy ✔ Quality ✔ Reliability ✔ On-Time Delivery ✔

🇮🇳Hooghly, India$8/hr100% JSS4.91 (13)Since Nov 2016

Earnings and projects

MRR
$154

Last 6 months ÷ 6

World#122,584 / 412k
🇮🇳Country#12,827 / 45.9k
Revenue, last 30 days
$81

Last 6 months: $923

World#94,334 / 412k
🇮🇳Country#10,092 / 45.9k
Total earnings
$2k

Billed in all: $2.1k

World#332,010 / 412k
🇮🇳Country#37,229 / 45.9k
Per project
$54

$71 in the last 6 months

World#315,465 / 412k
🇮🇳Country#36,637 / 45.9k
Projects, last 6 months
13

Across 19 contracts

68% fixed32% hourly
World#12,441 / 412k
🇮🇳Country#1,734 / 45.9k
Projects in all
38

Across 51 contracts

75% fixed25% hourly
World#79,289 / 412k
🇮🇳Country#12,521 / 45.9k

Earnings, last 30 days

$2.1k+$81 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$2,000$2,050$2,100$2,150Oct 8Oct 23Nov 7

Skill rankings: Top 24% in Content Writing

Ranked by MRR among everyone on Upwork with the skill.

  1. #48Image Classification119 freelancers · 🇮🇳 #1Top 40%
  2. #104CVAT204 freelancers · 🇮🇳 #7Top 51%
  3. #121Transcription Timestamping424 freelancers · 🇮🇳 #8Top 29%
  4. #206Video Annotation464 freelancers · 🇮🇳 #22Top 44%
  5. #250Online Market Research971 freelancers · 🇮🇳 #16Top 26%
  6. #275Image Annotation592 freelancers · 🇮🇳 #19Top 46%
  7. #362Video Transcription1,245 freelancers · 🇮🇳 #21Top 29%
  8. #391Chatbot1,273 freelancers · 🇮🇳 #74Top 31%