Caleb Leung

Software Engineer @ IntellPro

About

Hi there! I am a first-generation recent graduate with a Mathematics bachelor's degree and a minor in Economics. As a software engineer, I am committed to the field of computer science and continually striving to enhance my skills.My work ethic, sense of responsibility, and determination were all cultivated during my childhood. From the age of six, I gathered recyclable materials by the Shing Mun River in Hong Kong SAR every weekend. My hobbies include chess, working out, playing basketball and American football, and studying math, physics, and computer science-related topics. Also, I love anime and my favorite anime is Evangelion.caleb-leung-kwan-ho.github.io/github-website/Let's connect :)

Country

United States

City

New York City Metropolitan Area

Industry

Computer Software

Skill

Python (Programming Language), SQLAlchemy, SQL, PostgreSQL, REST APIs, FastAPI, pytest, Extract, Transform, Load (ETL), Data Pipelines, Object-Oriented Programming (OOP), Vector Databases, Amazon ECS, Systems Design, Docker, DBeaver, Hypertext Transfer Protocol Secure (HTTPS), Retrieval-Augmented Generation (RAG), Bayesian statistics, Data Structures, Algorithms

Experience

Software Engineer

IntellPro

2024-10 - Present · 2 yrs

New York, NY

• Architected a high-throughput RAG pipeline to ingest and process SEC filings (10-K), implementing a custom parser that normalizes heterogeneous HTML/PDF content into structured formats. • Reduced cloud infrastructure costs by 100% ($10K/month) by engineering a custom OCR solution to replace AWS Textract, maintaining accuracy while improving processing speed and reliability. • Designed a custom chunking library tailored for financial documents, optimizing token usage and preserving tabular data integrity significantly better than off-the-shelf solutions like LangChain. • Implemented a hybrid search algorithm combining semantic (SentenceTransformers) and fuzzy matching (RapidFuzz) to align section headers across disparate documents, improving retrieval accuracy. • Built a document classification model achieving 98.5% accuracy by optimizing embedding strategies and scoring functions for financial data categorization. • Established a comprehensive CI testing suite using Pytest, covering the full data ingestion lifecycle and accelerating the release cycle by 20%.

Software Engineer

Coco’s Industries LLC

2024-2 - 2024-9 · 8 mos

• Led the end-to-end development of a new Warehouse Management System (WMS) using FastAPI, delivering the project a full fiscal quarter ahead of schedule. • Designed and deployed scalable RESTful APIs to synchronize inventory data in real-time between the storefront and warehouse systems, ensuring 99.9% data consistency. • Engineered asynchronous background tasks using AWS Lambda and ECS Fargate to handle high-volume inventory sorting operations, decoupling business logic from the main application thread.

Software Engineer

LivestockCity

2022-10 - 2023-12 · 1 yr 3 mos

New York, NY

• Refactored legacy Django codebase to resolve critical model inconsistencies, significantly improving application stability and PDF rendering performance. • Developed a dynamic PDF generation engine, automating manual form creation workflows and reducing administrative overhead. • Optimized user communication protocols by implementing a robust email notification system integrated with core application logic.