About

About

def __init__(self):
    self.name = "Deena Sun"
    self.grade = "Junior"
    self.graduation_year = 2027
    self.majors = ["Electrical Engineering and Computer Science", "Business Administration"]
    self.school = "University of California, Berkeley"
Me and my team at the 2025 Berkeley AI HackathonStaying dry in the rainTouring the NYC Blackstone office with M.E.T.!Visiting MOMA during an M.E.T. class capstone trip to NYCTaking point-fives at the Arc de Triomphe with my mom and my brotherRushing the field after Cal won the Big GameMunching on a tomato bagel from Apollo BagelsPosing with my penguin buddy at the Central Park ZooSeeing the Endeavour space shuttle at the California Science CenterMe and Oski! Go Bears!Safety first

Hello, I'm Deena, a rising junior at UC Berkeley studying Electrical Engineering and Computer Science and Business Administration under the Management, Entrepreneurship, and Technology (M.E.T.) Program.

I'm passionate about AI interpretability, reinforcement learning, computer vision, and astronautics.

In my free time, I like to play jazz piano, rock climb, and visit art museums. I love dinosaurs, space, and books by Ernest Hemingway and Kurt Vonnegut!

Thanks for visiting my portfolio. I look forward to sharing more of my moonshots with you!

What I'm currently up to...

  • Researcher at Berkeley AI Research: diving into mechanistic interpretability to measure, analyze, and steer ambiguity in LLMs
  • Researcher at Stanford AI Laboratory: investigating how frontier AI will shape the future of cybersecurity
  • CS 189/289 Teaching Assistant: teaching CS 189/289 (Introduction to Machine Learning) at Berkeley on the content, discussion, and exam teams
  • Machine Learning @ Berkeley Research and External Officer: planning hackathons, career fairs, workshops, and more with Machine Learning @ Berkeley, UC Berkeley's premier machine learning organization
  • Accel Scholar: exploring the startup and venture capital ecosystem alongside a small, tight-knit community of fellow scholars and mentors

Experience

  • Uber AI Solutions Software Engineering Intern: launched a contextual search engine leveraging CLIP image-text models, KNN algorithms, and vector databases that let clients search over 100k+ images using natural language
  • VectorShift Software Engineering Intern: implemented LLMOps evaluations platform and revamped marketplace, spurring a 230% growth in daily active users over a month
  • Project Manager for Venture Strategy Solutions/Power My Analytics: led a team of 7 consultants to implement an AI coding agent with a test-driven ReAct approach to accelerate the development of new 3rd-party connectors for Power My Analytics
  • Software Developer for Blueprint/Alliance for Clean Energy New York: built and deployed an automated webscraper on Google Cloud to collect information on over 2,000 renewable energy projects in New York for a public web app with a searchable map, filters, and data aggregation
  • Berkeley SkyDeck Technical Intern: automated 250+ office hour sign-ups, mentor matchings, and event RSVPs using scripts to save 80+ hours/week for program admins
  • Consultant for Venture Strategy Solutions/BetterUp: coded an auditing dashboard to extract data on 600 courses and provide LLM-powered insights to improve learner outcomes for 4,000+ coaches