Steven Nydick
Lead Assessment Scientist, Psychometrics at Duolingo
Pittsburgh, Pennsylvania, United States
Summary
👤
Senior🎓
Top SchoolSteven Ho is a senior software engineer with 12 years of experience building consumer-facing mobile experiences, currently shaping Duolingo’s Android music course after driving engagement features at Twitch and Affirm. A UC Berkeley double major in Computer Science and Linguistics, he blends NLP and computational syntax interests with practical engineering—bringing a strong Android (Kotlin) frontend background and a data-informed approach to A/B testing and UX optimization. His teaching stints as lecturer and head TA for CS 61C reflect deep strengths in technical communication, curriculum design, and mentoring. He’s also a psychometrician-minded R developer who applies principled assessment and item modeling thinking to product measurement and personalization. Comfortable moving between product, data, and developer ergonomics, he excels at turning learning science and language insights into delightful app experiences. Based in Pittsburgh, he pairs academic rigor with product pragmatism to grow user engagement and retention.
12 years of coding experience
4 years of employment as a software developer
Bachelor of Science (B.S.), Psychology and Mathematics, Bachelor of Science (B.S.), Psychology and Mathematics at Syracuse UniversityUniversity of Minnesota Twin Cities
Dutch
Github Skills (39)
r10
shiny10
htmlwidgets10
fomantic-ui10
rshiny10
widgets9
bookdown9
scalafmt8
homebrew8
google-java-format7
ktlint6
sentiment-analysis5
r-package5
hammer4
backend4
Programming languages (5)
Github contributions (5)
swnydick/catIrt
Apr 2015 - May 2022
Contributions:23 commits, 25 pushes, 1 branch in 7 years 2 months
swnydick/swnydick.github.io
Jan 2018 - Aug 2025
Contributions:28 pushes, 1 branch in 7 years 7 months
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