Ryan J. Kim

Software Engineer

Computer Science student at Columbia University building full-stack solutions, machine learning systems, and innovative tech experiences.

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Experience

May 2026 – August 2026

Software Engineer Intern

Twitch · San Francisco, CA

Incoming Summer 2026

May 2025 – August 2025

Software Engineer Intern

Roam · New York, NY

  • • Developed flagship AI products (Magic Minutes, On-It) adopted by 500+ users weekly, reduced task follow-up time by 30%
  • • Built and deployed full-stack solutions using Go (backend RPCs), TypeScript + React (frontend), and MySQL
  • • Integrated services such as SQS, Redis, Redux, Docker, Tilt/Kubernetes for scalable deployment
  • • Incorporated unit testing, CI/CD pipelines, and Git-based workflows
October 2024 – May 2025

Machine Learning Researcher

Columbia DitecT Lab · New York, NY

  • • Improved YOLOv8 detection model recall by 11% for traffic intersections with NY DOT
  • • Developed physics-informed neural networks in TensorFlow for traffic modeling
  • • Integrated COSMOS testbed data from Harlem to enhance digital twins for traffic management
June 2024 – August 2024

Data Science Intern

Data Surge, LLC · Folsom, CA

  • • Developed XGBoost trees for entity resolution data deduplication using Python, MySQL, and MLFlow
  • • Improved model's recall from 75% to 98% and created data pipelines with DataBricks and PostgreSQL
  • • Presented solution to U.S Department of Energy (DOE)

Projects

Quantum ML for Dementia Detection

PythonQiskitFlaskPyTorchpandas

A quantum convolutional neural network outperforming similar ML methods for dementia detection in MRI/CT scans. Executed variational quantum eigensolver circuits on remote IBM quantum superconducting computers.

January 2023 – February 2024

xBeat

Next.jsThree.jsGrok Voice

A cutting-edge web-based voice-first interface DJ system that combines professional audio mixing capabilities with AI assistance. Talk to Grok using natural language to control your mix, create smooth transitions, and let AI handle complex DJ operations while you focus on creativity.

xAI Hackathon · December 2025

Future Form

ReactTypeScriptSupabasePostgreSQLOAuth

Designed and built an interactive, conversational form using React to streamline user workflows and enhance UX. Developed SQL functions and row-level security policies in Supabase to securely retrieve and insert structured data.

March 2025 – May 2025

Signterpreter

PythonCSSReactAWS

A computer vision application that translates ASL gestures from the webcam to text for the deaf.

February 2023 – May 2024

Optimal Graph Search Algorithms for Train Routes

PythonTkinter

A graphical user interface testing graph search algorithms to find the most efficient and complete U.S. train routes.

September 2024 – October 2024

Portfolio Website

Next.jsReactThree.jsReact Three FiberTailwind CSSTypeScript

A personal portfolio website showcasing a little glimpse into my life and my passions.

Education

Columbia University

B.S. in Computer Science, Minor in Statistics

GPA: 4.0/4.0 · Expected May 2028

Egleston Scholar (Top 1% of Columbia Engineering)

Relevant Coursework

Multivariable CalculusLinear Algebra & ProbabilityData Structures & AlgorithmsAdvanced (Systems) Programming in CDiscrete MathematicsProbability TheoryStatistical InferenceDatabasesArtificial IntelligenceComputer SystemsC++ for C ProgrammersMachine LearningData ScienceLinear Regression Models

Awards & Honors

Egleston Scholar

Top 1% of Columbia Engineering students

USA Physics Olympiad Qualifier

2x Qualifier

AIME Qualifier

American Invitational Mathematics Examination

Cornell Trading Competition Winner

Regeneron ISEF Finalist

International Science and Engineering Fair

Regeneron Science Talent Search Scholar

USA Computing Olympiad

Gold Division

xAI Hackathon Invitee

Technical Skills

Languages

JavaPythonC/C++SQLJavaScriptTypeScriptGoBash

Tools & Frameworks

GitDockerKubernetesRedisReactNext.jsTensorFlowPyTorchAWSNode.js