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Welder O.

Welder O.

Math/Statistics Online Tutor | Calculus + Statistics + Grades 6-12 + R

• Algebra (Middle and High School) • College Level Statistics and Probability • R/Python/Data Science • Calculus • GRE/MAT/Executive Assessment CREDENTIALS • Over 1000 tutoring hours only in Upwork with 100% job score • Over 10 years of experience as a teacher - classroom and online experience • YouTube channel covering math topics • Graduated in both mathematics and statistics with a master's degree in Computer Science Hi, More than a tutor freelancing in Upwork, I’m a proper math teacher with real classroom and online tutoring experience. I have tutored from Middle School to Master level mathematics, statistics, R, and machine learning. Invite me anytime to schedule a demonstration. DIFFERENTIAL • strong commitment to student learning • deep knowledge of the subjects • thousands of online tutoring hours

🇧🇷Goiânia, Brazil$60/hr100% JSS5.00 (26)Since Mar 2016
GlobeUpwork

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#111,855 / 412k
🇧🇷Country#1,123 / 4,647
Revenue, last 30 days
$0
Total earnings
$29k

Billed in all: $29k

World#111,855 / 412k
🇧🇷Country#1,123 / 4,647
Per project
$669
Projects, last 6 months
0
World#209,850 / 412k
🇧🇷Country#2,400 / 4,647
Projects in all
44

Across 50 contracts

18% fixed82% hourly
World#69,305 / 412k
🇧🇷Country#478 / 4,647

Earnings, last 30 days

$29.5kNothing earned since Oct 9Billed in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$28.5k$29.0k$29.5k$30.0kOct 9Oct 24Nov 7

Tracked from Oct 9, 2026.

Skills