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Sasan Esfahani
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SOFTWARE ENGINEER & DATA SCIENTIST

I'm a Computer Science student at UCLA who loves building innovative solutions
with modern technologies. I have experience in full-stack development,
compilers, machine learning, and I'm a big Linux enthusiast. When I'm not
coding, you can find me enjoying electronic music, practicing yoga, or camping
outdoors.

Contact Me
ExperienceProjectsEducationSkills
Software Engineer
MarketPlace.UpTk.io • Aug 2024 - Present
 * Developed a full-stack revenue-generating web application with another peer,
   built from scratch, to transform a startup's business model, streamline
   operations, and automate collaboration between TikTok shops and affiliates
 * Set up a MongoDB Atlas database; built Next.js API routes in TypeScript; used
   AWS Lambda and CloudWatch to run CRON jobs; scraped TikTok data and stored it
   in RDS for faster structured queries
 * Leveraged AWS CloudFront to cache and deliver S3 images faster, enhancing
   performance and user experience
 * Built a responsive UI using Next.js and Tailwind CSS, integrating Stripe API
   for secure subscription and affiliate payments. Leveraged SSR and local
   storage for caching key data and improving load times
 * Implemented NextAuth with JWT for secure user authentication, supporting
   multiple roles and permissions
 * Used Vercel for CI/CD to automate deployments after successful Git builds,
   with ESLint ensuring code quality
 * Collaborated with users to gather feedback, design and implement Agency-level
   subscriptions, enhance usability, and prioritize features while optimizing
   the app for high availability through robust software engineering practices

Data Science Intern
Edwards Lifesciences • June 2024 - Aug 2024
 * Developed a full-stack web application using Python, Next.js, and JavaScript,
   hosting Large Language Models on in-house AWS GPUs to keep sensitive clinical
   data confidential. Built the backend in Python with NLP optimizations and
   collaborated with biostatisticians to design an intuitive UI tailored to
   their needs
 * Built a block-based, AI-powered text editor and document reader using LLaMA
   7B, Hugging Face, and LlamaIndex for RAG (Retrieval-Augmented Generation) to
   analyze long contexts efficiently. Added chain-of-thought reasoning and flash
   attention to deliver faster and more logical responses
 * Drew API diagrams, and authored Technical Design Documents and Product
   Requirement Documents to meet FDA standards. Presented the project to the
   CEO, translating technical details into business value
 * As part of a team, won the Best Preprint Award in the PhysioNet Challenge
   2024 by fine-tuning Segment-Anything Meta and experimenting with YOLO v7 for
   paper ECG digitization. Dockerized the model and used PyTorch, TorchVision,
   Scikit-Image, and Tesseract OCR to process paper ECG data efficiently

Tutor
OCC Student Success Center • June 2021 - June 2022
 * Tutored students in C++, Java, and Calculus, adapting to diverse learning
   styles, leading group tutoring sessions of up to 25 students, and organizing
   crash courses to prepare for coding exams
 * Tutored a Data Structures class in C++, drawing objects on the heap as
   students coded on paper, reinforcing memory management and object-oriented
   concepts through hands-on exercises and visual learning
 * Earned a tutoring certificate with training for working with students with
   disabilities. Gained professional experience, balancing independent
   problem-solving versus seeking help from my manager





Contact: sesfahani@ucla.edu

Address: Los Angeles, CA 90025