Li L.
AI Agent QA Engineer | LangChain | Python | Selenium | Test Automation
Looking to build or test AI-powered applications? I specialize in AI Agent testing and QA automation — combining hands-on LangChain/Python AI development experience with deep test automation expertise to validate intelligent systems end-to-end. At BIGO Technology, I built an AI-Agent autonomous testing platform using Python, Claude API, and LangChain — enabling intelligent log analysis, automated defect classification, and self-healing test workflows. This is not just QA theory: I have designed and shipped production AI testing infrastructure serving millions of users. My automation stack covers the full spectrum: Selenium and Appium for web and mobile UI testing, Java-based test frameworks, API testing (REST/RPC/Postman), CI/CD pipeline integration (Jenkins/GitHub Actions), and performance testing. At BIGO, I architected end-to-end test platforms covering 500+ test cases across Android and iOS, cutting regression cycles by 70% and enabling continuous delivery for high-concurrency apps. What sets me apart: I bring a rare combination of AI Agent development experience and enterprise-grade QA automation — I understand how LLM-based systems fail, how to design prompt adversarial tests, validate RAG pipelines, and build reliable regression coverage for AI workflows. Based in Abu Dhabi (UTC+4), available for Asian and European business hours. Whether you need AI Agent testing strategy, LangChain workflow validation, Selenium/Appium automation framework setup, or CI/CD test pipeline integration — I deliver production-grade results. Let's discuss your AI testing needs — message me and I typically respond within a few hours.
Earnings and projects
Last 6 months ÷ 5.5 months active (since May 2026)
Last 6 months: $8.5k
Billed in all: $9,080$9.1k
$4.3k in the last 6 months
Across 3 contracts
Across 3 contracts
Earnings, last 30 days
Skill rankings: Top 8% in Java
Ranked by MRR among everyone on Upwork with the skill.
- #34Appium308 freelancers · 🇦🇪 #2Top 11%🇦🇪#2 of 5
- #55Test Automation445 freelancers · 🇦🇪 #2Top 12%🇦🇪#2 of 4
- #68Performance Testing563 freelancers · 🇦🇪 #1Top 12%🇦🇪#1 of 4
- #104Jenkins1,177 freelancers · 🇦🇪 #2Top 9%🇦🇪#2 of 16
- #143Automated Testing1,000 freelancers · 🇦🇪 #2Top 14%🇦🇪#2 of 10
- #173API Testing1,365 freelancers · 🇦🇪 #3Top 13%🇦🇪#3 of 12
- #181Selenium2,249 freelancers · 🇦🇪 #2Top 8%🇦🇪#2 of 15
- #188Mobile App Testing1,834 freelancers · 🇦🇪 #3Top 10%🇦🇪#3 of 24