Top Bug Investigation freelancers

32 freelancers list Bug Investigation on Upwork.

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Showing 32 of 32Data updated Nov 7

# Freelancer		SinceMember since
Andrei Z. 🇺🇦🇺🇦 Workflow manager	$4k↑ 4%	Mar 2018Mar 22, 2018
Yuliya F. 🇺🇦🇺🇦 QA Engineer	$2k↑ 1%	Jul 2023Jul 26, 2023
Marija T. 🇲🇰🇲🇰 Manual QA Tester \| iOS, Android & Web Testing \| API Testing	$2k↑ 2%	Oct 2018Oct 5, 2018
4 Trevor N. 🇰🇪🇰🇪 Digital Forensics & Security \| Cloudflare \| MS 365 \| Google Workspace	$2k↑ 5%	Apr 2023Apr 18, 2023
5 Samuel K. 🇳🇬🇳🇬 Front-End Developer \| AI Trainer & Data Annotator \| Technical Support	$624↑ 17%	Aug 2022Aug 1, 2022
6 Jamie P. 🇸🇮🇸🇮 Salesforce Optimization Specialist	$532↓ 13%	Jun 2024Jun 13, 2024
7 Bereket W. 🇪🇹🇪🇹 QA Engineer \| Website & Mobile Testing \| Manual and Automation Tester	$306↓ 1%	Mar 2023Mar 18, 2023
8 MD HASANUR R. 🇧🇩🇧🇩 Penetration Tester \| Web & API \| Ethical Hacker \| Cyber Security	$133↓ 25%	Sep 2021Sep 6, 2021
9 KuiPei C. 🇨🇳🇨🇳 Game Design & Development \| API, API Development, Product Development	$63↓ 1%	Jan 2025Jan 7, 2025
10 Mariana B. 🇷🇴🇷🇴 Manual QA Engineer \| End-to-End QA \| Web, Mobile & Desktop \| QA Tester	$58↓ 15%	Jul 2022Jul 13, 2022

Freelancer	MRR	Member since
11 Jake H. 🇺🇸🇺🇸 Workflow Automation \| Make, Zapier, Python & API Integrations	$15↓ 1%	Feb 2021Feb 22, 2021
12 Chi Siang C. 🇲🇾🇲🇾 Cybersecurity Engineer	$0–	Feb 2023Feb 28, 2023
13 Ruby Ann A. 🇵🇭🇵🇭 Customer Support Specialist \| Executive Assistant \| Shopify VA	$0↓ 100%	May 2021May 12, 2021
14 Alma M. 🇵🇭🇵🇭 Project Coordinator \| Operations Support \| QA Tester \| CMS Support	$0–	Jun 2008Jun 29, 2008
15 Bohdan B. 🇺🇦🇺🇦 Tester	$0–	Oct 2023Oct 28, 2023
16 Catherine P. 🇵🇭🇵🇭 Experienced Software QA Tester & Freight/Logistics Process Specialist	$0–	Jul 2012Jul 31, 2012
17 Renzo Alec F. 🇵🇭🇵🇭 Project Coordinator \| Product Specialist \| SaaS	$0–	May 2025May 4, 2025
18 Kim A. 🇵🇭🇵🇭 eLearning Tester and Developer	$0–	Jun 2021Jun 16, 2021
19 Hussein S. 🇪🇬🇪🇬 Web Developer \| Python \| WordPress Expert	$0–	Aug 2021Aug 9, 2021
20 Judy A. 🇻🇪🇻🇪 Public Policy Specialist \| Humanization and AI Text Editing	$0–	May 2023May 8, 2023

Freelancer	MRR	Member since
21 Amber Z. 🇬🇧🇬🇧 Sr. Manual QA Tester \| Agile, Functional Testing, Web & Mobile	$0–	Jul 2025Jul 17, 2025
22 Hassan R. 🇦🇺🇦🇺 Senior Software Engineer Java \| Python \| PHP	$0–	Jan 2024Jan 22, 2024
23 Ioana Alexandra C. 🇨🇭Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇨🇭 Software Engineer \| Debugging, Root Cause Analysis & Maintenance	≈$0–	Aug 2025Aug 20, 2025
24 Bilal H. 🇵🇰Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Jul 17, 2026.🇵🇰 QA Engineer \| Mastermind of Cypress Automation & API Testing	≈$0–	Jan 2020Jan 9, 2020
25 Nabeel M. 🇵🇰Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇵🇰 Cyber Security Engineer	≈$0–	Feb 2021Feb 28, 2021
26 Davide M. 🇮🇹Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇮🇹 Consulting Detective, Digital Forensic and Private Investigator	≈$0–	Aug 2019Aug 8, 2019
27 Md Syfur R. 🇧🇩Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇧🇩 Ethical Hacker \| Pentester	≈$0–	Aug 2022Aug 1, 2022
28 Abdul Rafay I. 🇵🇰Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇵🇰 Security Analyst \| SOC \| IBM QRADAR \| WAZUH \| Cyber Security writer	≈$0–	Jan 2021Jan 15, 2021
29 Filip S. 🇲🇰Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇲🇰 QA Engineer	≈$0–	Oct 2018Oct 4, 2018
30 Polina F. 🇬🇧Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇬🇧 Full Stack Developer	≈$0–	Dec 2021Dec 5, 2021

Freelancer	MRR	Member since
31 Jestoni M. 🇵🇭Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇵🇭 Bug Specialist	≈$0–	Dec 2020Dec 19, 2020
32 Steven P. 🇨🇴Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.🇨🇴 QA Tester \| Manual & Functional Testing \| Bug Reporting	≈$0–	Feb 2018Feb 5, 2018

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