Open to opportunities

Ellen Luo

@ellenluo

I build automation and CI/CD systems that improve software quality.

I've built scalable test automation and CI/CD systems for Ericsson telecommunications products and regulated medical software at Fresenius Medical Care. My work has improved CI/CD stability from 30% to 90%, cut regression execution from nine hours to three, and increased testing efficiency by 60%.

At Fresenius Medical Care, I develop Robot Framework verification solutions and created a locally deployed DeepSeek-powered Eclipse tool that generates C++ unit tests, improving engineering productivity by 50%. I also build Python log-analysis tools, investigate defects through root-cause analysis, and work with distributed engineering teams to deliver compliant, high-quality releases.

Experience

Work history, roles, and key accomplishments

Current

Senior Test Automation Engineer

Current

Fresenius Medical Care

Nov 2024 - Present (1 year 9 months)

Collaborates with cross-functional teams to develop and verify regulated medical software, designing and maintaining automated verification solutions using Robot Framework. Developed an AI-powered tool using DeepSeek LLM to generate C++ unit tests, improving productivity by 50%.

Robot Framework Python Java C++Eclipse PlantUML CI CD Testing Automation SDLC Root Cause Analysis

Test Architect (Automation & CI/CD focus)

Ericsson (China) Communications Co., Ltd.

May 2009 - Oct 2024 (15 years 5 months)

Led system verification strategy and release quality assurance for large-scale telecommunications software, designing scalable automation frameworks and Jenkins-based CI/CD pipelines. Improved CI/CD stability from 30% to 90% and reduced regression execution time from 9 to 3 hours.

Java Python TestNG Shell REST APIs Jenkins Git Spinnaker Docker Kubernetes CI CD Automation Framework SDLC Software Release Management Root Cause Analysis

Network Maintenance Engineer

China Mobile

Jul 2006 - Jun 2008 (1 year 11 months)

Monitored telecommunications network infrastructure, investigated software and hardware issues, and coordinated with teams to ensure service availability. Promoted to team leader within six months, achieving a 100% on-time fault detection rate.

Network Monitoring Troubleshooting Fault Detection Team Leadership