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Zeffa A.
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Zeffa A.

Research & Data Analyst | Statistics | Economic | Policy | Market

I’m a Top Rated Plus Research & Data Analyst, among the top 3% of talent on Upwork, with 8+ years of experience and 120+ completed projects. I help clients turn complex data and evidence into clear findings and professional reports across policy, market, economic impact, financial, sustainability, and academic research. I also contribute to frontier AI training and benchmarking, evaluating the accuracy, reasoning, and quality of AI-generated output. Services: Research & reporting | Statistical & survey analysis | Economic impact studies | Literature reviews | Geospatial analysis Tools: Python (Pandas, GeoPandas, Matplotlib), Stata, Excel/Google Sheets, SPSS, SmartPLS, Semrush, and AI-assisted research tools. My focus: accurate analysis, transparent methods, traceable sources, and practical results.

🇮🇩Depok, Indonesia$30/hr100% JSS4.93 (86)Since Jan 2014

Earnings and projects

MRR
$2k

Last 6 months ÷ 6

World#22,462 / 412k
🇮🇩Country#144 / 5,725
Revenue, last 30 days
$1.2k

Last 6 months: $12k

World#36,827 / 412k
🇮🇩Country#331 / 5,725
Total earnings
$125k

Billed in all: $128k

World#30,070 / 412k
🇮🇩Country#177 / 5,725
Per project
$960

$1.2k in the last 6 months

World#127,071 / 412k
🇮🇩Country#1,256 / 5,725
Projects, last 6 months
10
10% fixed90% hourly
World#18,298 / 412k
🇮🇩Country#273 / 5,725
Projects in all
130

Across 135 contracts

46% fixed54% hourly
World#19,387 / 412k
🇮🇩Country#205 / 5,725

Earnings, last 30 days

$128k+$1.2k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$126k$127k$128k$129kOct 8Oct 23Nov 7

Skill rankings: Top 2% in Academic Research

Ranked by MRR among everyone on Upwork with the skill.

  1. #4SWOT Analysis138 freelancers · 🇮🇩 #1Top 3%
  2. #4Secondary Research103 freelancers · 🇮🇩 #1Top 4%
  3. #10Industry Research186 freelancers · 🇮🇩 #1Top 5%
  4. #13Business Research274 freelancers · 🇮🇩 #1Top 5%
  5. #29Scientific Research852 freelancers · 🇮🇩 #1Top 3%
  6. #29Competitor Research507 freelancers · 🇮🇩 #1Top 6%
  7. #55Academic Research2,302 freelancers · 🇮🇩 #1Top 2%
  8. #63Data Processing1,172 freelancers · 🇮🇩 #2Top 5%