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Ratna P.
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Ratna P.

AI Data Annotator | AI Trainer | Indonesian Language & Data Specialist

AI Data Annotator and Indonesian Language Specialist with 4+ years of experience supporting AI training, data annotation, and model evaluation projects. I have hands-on experience working with image, text, audio, voice and video annotation, as well as RLHF, AI response evaluation, preference ranking, and Indonesian language data projects. My strength is understanding both data quality and real user context. I carefully evaluate whether AI-generated content is accurate, natural, contextually appropriate, and suitable for Indonesian users. My experience includes: ✅ AI data annotation & labeling ✅ Image, text, audio & video annotation ✅ AI response rating & evaluation ✅ RLHF & preference ranking ✅ Indonesian language review & localization ✅ Data categorization, verification & quality control ✅ Data entry, cleaning & accuracy review ✅ Web research and data extraction I have worked with platforms and tools including Labelbox, SuperAnnotate, CVAT, Label Studio, Appen, and Scale AI. In addition to my AI project experience, I have 4+ years of professional Customer Support experience, giving me a strong understanding of user communication, context, and natural language. I am detail-oriented, reliable, comfortable working independently, and experienced in following detailed project guidelines while maintaining consistent quality. If you need someone who understands both AI data quality and the Indonesian user perspective, I would be happy to support your project.

🇮🇩Semarang, Indonesia$15/hr100% JSS4.98 (5)Since Nov 2020

Earnings and projects

MRR
$170

Last 6 months ÷ 6

World#118,891 / 412k
🇮🇩Country#1,825 / 5,726
Revenue, last 30 days
$992

Last 6 months: $1k

World#43,036 / 412k
🇮🇩Country#446 / 5,726
Total earnings
$2.7k

Billed in all: $2.9k

World#307,014 / 412k
🇮🇩Country#3,807 / 5,726
Per project
$247

$256 in the last 6 months

World#248,059 / 412k
🇮🇩Country#3,260 / 5,726
Projects, last 6 months
4

Across 5 contracts

60% fixed40% hourly
World#51,815 / 412k
🇮🇩Country#932 / 5,726
Projects in all
11

Across 15 contracts

67% fixed33% hourly
World#192,419 / 412k
🇮🇩Country#2,591 / 5,726

Earnings, last 30 days

$2.9k+$992 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1.5k$2.0k$2.5k$3.0kOct 9Oct 24Nov 8

Skill rankings: Top 29% in Indonesian

Ranked by MRR among everyone on Upwork with the skill.

  1. #47Image Classification119 freelancers · 🇮🇩 #2Top 39%
  2. #47Labelbox102 freelancers · 🇮🇩 #1Top 46%
  3. #74Indonesian259 freelancers · 🇮🇩 #69Top 29%
  4. #93Image Segmentation209 freelancers · 🇮🇩 #3Top 44%
  5. #272Image Annotation592 freelancers · 🇮🇩 #12Top 46%
  6. #449Data Labeling1,093 freelancers · 🇮🇩 #15Top 41%
  7. #595Transaction Data Entry1,625 freelancers · 🇮🇩 #8Top 37%
  8. #944Data Annotation2,301 freelancers · 🇮🇩 #41Top 41%