Michael Dafferner
Director, Test Engineering And DevEx at Vestwell
Trenton, New Jersey, United States
Summary
👤
Senior🎓
Top SchoolMichael Dafferner is a seasoned engineering leader with 10+ years of experience building test engineering, release engineering, and developer experience teams, currently directing Test Engineering and DevEx at Vestwell. He grew Vestwell’s SDET/QA organization from three to twenty-three engineers, promoted internal talent into leadership, and architected multiple automation frameworks supporting complex workplace and state accounting systems. Previously at Integral Ad Science he optimized CI/CD and performance metrics to deliver faster, more reliable releases. His technical roots span automation frameworks (Selenium/Python, Dockerized grids), AWS provisioning, and a history of systems and satellite-ground software engineering, giving him a rare blend of infrastructure, testing, and domain rigor. Based in Trenton, NJ, he combines hands-on engineering with people development and a pragmatic focus on actionable KPIs like defect detection. An unexpected strength: early career work on satellite control and orbital analysis informs his disciplined, safety-minded approach to reliability engineering.
10 years of coding experience
12 years of employment as a software developer
MA Physics, MA Physics at The City College of New YorkProfessional Certificate in C++ Programming C++, Professional Certificate in C++ Programming C++ at New York UniversityBS Physics, BS Physics at Stony Brook University
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (12)
translate3
java2
translation2
python2
web-automation1
selenium-webdriver-python1
applitools1
automation1
selenium-webdriver1
sdk1
webdriver1
selenium1
Programming languages (2)
Github contributions (5)
mdaffern/python_koans
Nov 2017 - Jan 2019
Contributions:12 commits, 2 pushes, 4 branches in 1 year 3 months
mdaffern/mdaffern
Jul 2020 - Jul 2022
Contributions:12 pushes, 1 branch in 2 years
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