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Mariano B.
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Mariano B.

Data Specialist | Web Research, Content Curation & EN-ES Localization

Detail-oriented Data Quality Specialist with 10+ years of experience in structured data curation, quality assurance, and localization for a large-scale knowledge graph project at one of Upwork's largest Enterprise Client. Proven ability to research, evaluate, and structure information across diverse domains (including sports, entertainment, music, politics, biology, and live events) following strict editorial guidelines. Experienced across the full quality control pipeline as Curator, Reviewer, and Auditor. Skilled in semantic web vocabularies (Schema .org), source credibility assessment, and content evaluation. Strong background in EN-ES localization with attention to linguistic nuance, regional accuracy, and cultural appropriateness.

🇦🇷Ciudad Autonoma de Buenos Aires, Argentina$20/hr100% JSS5.00 (27)Since Jun 2014

Earnings and projects

MRR
$178

Last 6 months ÷ 6

World#117,402 / 412k
🇦🇷Country#1,332 / 4,639
Revenue, last 30 days
$101

Last 6 months: $1.1k

World#91,656 / 412k
🇦🇷Country#1,101 / 4,639
Total earnings
$201k

Billed in all: $215k

World#15,193 / 412k
🇦🇷Country#141 / 4,639
Per project
$8.4k

$1.1k in the last 6 months

World#19,793 / 412k
🇦🇷Country#235 / 4,639
Projects, last 6 months
1
0% fixed100% hourly
World#128,095 / 412k
🇦🇷Country#1,409 / 4,639
Projects in all
24

Across 28 contracts

7% fixed93% hourly
World#116,631 / 412k
🇦🇷Country#1,065 / 4,639

Earnings, last 30 days

$215k+$101 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$214.7k$214.8k$214.9kOct 8Oct 23Nov 7

Skill rankings: Top 22% in Argentinian Spanish Dialect

Ranked by MRR among everyone on Upwork with the skill.

  1. #29Argentinian Spanish Dialect130 freelancers · 🇦🇷 #25Top 22%
  2. #172Latin American Spanish Accent670 freelancers · 🇦🇷 #20Top 26%
  3. #491QA Testing1,392 freelancers · 🇦🇷 #12Top 35%
  4. #549Localization1,426 freelancers · 🇦🇷 #10Top 38%
  5. #678English to Spanish Translation2,468 freelancers · 🇦🇷 #75Top 27%
  6. #939Data Annotation2,301 freelancers · 🇦🇷 #8Top 41%
  7. #1,126Data Collection3,620 freelancers · 🇦🇷 #2Top 31%
  8. #1,579Data Extraction5,087 freelancers · 🇦🇷 #6Top 31%