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Mark Timothy B.
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Mark Timothy B.

Image Annotator| Semantic Segmentation |Data Labeler| Construction AI

👋 Hello! I'm an experienced Image Annotator, Semantic Segmentation and Data Labeling Specialist with over 5 years of hands-on work in preparing high-quality data for machine learning projects.📌 I’m eager to build long-term relationships with clients and prove my value on Upwork. Let’s work together to bring precision to your data! I may be new to Upwork, but I bring real-world experience, attention to detail, and a strong commitment to delivering excellent results. I’ve worked on projects involving: 🔹 Bounding Box Annotation 🔹 Semantic Segmentation 🔹 Object Detection 🔹 Image and Video Frame Labeling 🔹 Quality Control and Review I’m familiar with tools like CVAT, Labelbox, Coco Annotator , Roboflow and I’ve successfully annotated thousands of images used in industries like: ✅ Autonomous Vehicles ✅ Agriculture (Drone Images) ✅ Retail and Product Detection ✅ Medical Imaging 💼 What you can expect when working with me: - High accuracy and quality control - Fast turnaround times - Clear communication - Willingness to do a **free sample/test task** to prove my skills - Full confidentiality and professionalism ➡️ Send me a message—I’m ready to help!

🇵🇭Polangui, Philippines$8/hr100% JSS4.34 (4)Since May 2017

Earnings and projects

MRR (estimate)
≈$1.3k

An estimate from an earlier read

World#36,964 / 412k
🇵🇭Country#6,030 / 56.3k
Revenue, last 30 days
$1.1k

Last 6 months: $7.9k

World#40,260 / 412k
🇵🇭Country#7,867 / 56.3k
Total earnings
$14k

Billed in all: $15k

World#167,020 / 412k
🇵🇭Country#27,468 / 56.3k
Per project
$1.8k

$2.6k in the last 6 months

World#83,802 / 412k
🇵🇭Country#17,114 / 56.3k
Projects, last 6 months
3
0% fixed100% hourly
World#66,479 / 412k
🇵🇭Country#5,298 / 56.3k
Projects in all
8
13% fixed87% hourly
World#223,560 / 412k
🇵🇭Country#19,769 / 56.3k

Earnings, last 30 days

$15.1k+$1,000 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$14.0k$14.5k$15.0k$15.5kOct 9Oct 24Nov 8

No data since Nov 5, 2026.

Skill rankings: Top 5% in PDF Conversion

Ranked by MRR among everyone on Upwork with the skill.

  1. #6Semantic Segmentation60 freelancers · 🇵🇭 #1Top 10%
  2. #22Annotated Screenshot132 freelancers · 🇵🇭 #5Top 17%
  3. #38Data Segmentation212 freelancers · 🇵🇭 #22Top 18%
  4. #45Video Annotation464 freelancers · 🇵🇭 #19Top 10%
  5. #46Construction Monitoring318 freelancers · 🇵🇭 #20Top 14%
  6. #51Image Annotation592 freelancers · 🇵🇭 #22Top 9%
  7. #52Structural Analysis431 freelancers · 🇵🇭 #4Top 12%
  8. #104Data Labeling1,093 freelancers · 🇵🇭 #40Top 10%