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Kateryna S.

Kateryna S.

ISTQB Certified Manual/Automation QA Engineer | Web & Mobile Testing

ISTQB Certified QA Engineer I’m a QA Manual/Automation Engineer with 4+ years of experience, focused on building reliable automated tests as well as doing repetitive manual work. I mostly work with Playwright and help teams set up test automation that actually fits into their development process — not something that breaks every other day. 🚀 What I usually do: • Build end-to-end tests using Playwright (TypeScript / JavaScript) • Set up and improve test automation frameworks • Integrate tests into CI/CD (GitHub Actions, GitLab CI, Jenkins) • Run tests in Docker when needed • Fix flaky tests and make them stable • Help teams understand what should (and shouldn’t) be automated 🧠 About AI-related features: I’ve worked with products that include AI features (chatbots, recommendations), where testing isn’t always straightforward. • I focus on edge cases • validate outputs and data consistency • and automate the parts that actually make sense to automate 🛠 Tech I use: Playwright, TypeScript / JavaScript REST APIs GitHub Actions / GitLab CI / Jenkins Docker Postman, Git ClickUp, Jira 💡 How I work: I don’t just “write tests” — I try to build something that saves time long-term. That usually means fewer but better tests, clear structure, and making sure everything runs reliably in CI. 📩 If you’re looking for someone who can: • analyze your application/website (UX, usability, errors, edge cases) • provide detailed bug reports and structured checklists based on analysis • suggest clear improvement ideas and optimization opportunities • set up test automation from scratch • clean up a messy test suite • make your tests more stable and reliable feel free to reach out.

🇩🇪Beverungen, Germany$35/hr40% JSSSince Jun 2023

Earnings and projects

MRR
$4.2k

Last 6 months ÷ 6

World#7,494 / 412k
🇩🇪Country#53 / 3,842
Revenue, last 30 days
$4.3k

Last 6 months: $25k

World#7,124 / 412k
🇩🇪Country#60 / 3,842
Total earnings
$155k

Billed in all: $165k

World#22,491 / 412k
🇩🇪Country#144 / 3,842
Per project
$155k

$25k in the last 6 months

World#68 / 412k
🇩🇪Country#1 / 3,842
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇩🇪Country#1,059 / 3,842
Projects in all
1

Across 3 contracts

0% fixed100% hourly
World#360,671 / 412k
🇩🇪Country#3,469 / 3,842

Earnings, last 30 days

$165k+$4.3k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$160.0k$162.5k$165.0k$167.5kOct 8Oct 23Nov 7

Skill rankings: Top 2% in Bug Tracking & Reports

Ranked by MRR among everyone on Upwork with the skill.

  1. #10Bug Tracking & Reports641 freelancers · 🇩🇪 #1Top 2%
  2. #17QA Automation460 freelancers · 🇩🇪 #2Top 4%
  3. #23Test Case Design957 freelancers · 🇩🇪 #2Top 2%
  4. #37Regression Testing1,279 freelancers · 🇩🇪 #2Top 3%
  5. #44Mobile App Testing1,834 freelancers · 🇩🇪 #2Top 2%
  6. #45Functional Testing1,649 freelancers · 🇩🇪 #2Top 3%
  7. #47Web Testing1,763 freelancers · 🇩🇪 #2Top 3%
  8. #57Software Testing2,047 freelancers · 🇩🇪 #1Top 3%