Vijay Rajanna
Principal Research Engineer at HarmonEyes
Sunnyvale, California, United States
Summary
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Senior🎓
Top SchoolVijay Rajanna is a Principal Research Engineer with 11+ years of experience building machine learning and computer vision systems that enable next-generation touch, force sensing, haptics, and eye-tracking interfaces. He has led R&D teams at Sensel and HarmonEyes, shipping haptic touchpads integrated into flagship laptops and architecting real-time models that infer fatigue, cognitive load, and other human states from eye movements. His Ph.D. work blends HCI, cognitive psychology, and predictive analytics to create gaze-assisted, multimodal interaction techniques and dwell-free text entry, with applications in accessibility, cybersecurity, and education. Vijay combines deep algorithmic expertise (CNNs, transformers, VLMs) with hands-on systems experience across C/C++, Python, PyTorch, and embedded productization, making him effective at taking research into mass-market hardware. He is notable for translating eye-movement features into practical real-time predictors in collaboration with neuroscientists and for creating automated robotic tests to validate sensor quality for production. Based in Sunnyvale, he brings a research-first mindset to product engineering, focusing on user studies and statistical rigor to drive intuitive human-computer interactions.
11 years of coding experience
16 years of employment as a software developer
BITS Pilani, Birla Institute of Technology and ScienceBachelor's Degree Computer Science and Engineering, Bachelor's Degree Computer Science and Engineering at Visvesvaraya Technological UniversityDoctor of Philosophy (Ph.D.) Computer Science - Human-Computer Interaction - Eye Tracking, Doctor of Philosophy (Ph.D.) Computer Science - Human-Computer Interaction - Eye Tracking at Texas A&M University
English
Stackoverflow
665reputation
106kreached
3answers
7questions
Github Skills (33)
accessibility10
lists10
unicorns10
eye-tracking10
assistive-technology10
morse-code10
merlin10
speech10
naive-bayes10
aac10
als10
sketchup10
eye-tracker10
noise-reduction10
tizen9
Programming languages (2)
Github contributions (5)
vijayrajanna/website_vijayrajanna
Jun 2015 - May 2016
Contributions:91 pushes, 1 branch in 10 months
vijayrajanna/MachineLearning
Nov 2015 - Oct 2018
Contributions:20 pushes, 1 branch in 3 years
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