Open to opportunities

Justin Oh

@justinoh

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Senior AI/ML Engineer with expertise in machine learning solutions.

United States

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What I'm looking for

I am seeking a role that fosters innovation in AI, encourages collaboration, and offers opportunities for professional growth while working on impactful projects.

I am a Senior AI/ML Engineer with over 10 years of experience in designing and deploying enterprise-grade machine learning solutions across various domains, including healthcare, finance, and consulting. My academic background includes a Master’s degree in Computer Science, which has equipped me with a solid foundation in advanced technologies such as large language models (LLMs), Generative AI, and natural language processing (NLP). I am passionate about responsible AI and model governance, and I excel at translating complex data into actionable business outcomes.

Throughout my career, I have led the development of high-impact AI platforms, notably a Generative AI solution that automated federal healthcare policy analysis, significantly reducing manual review time. My expertise extends to building cloud-native AI systems on AWS and GCP, integrating MLOps, and developing real-time services in compliance-driven environments. I have a proven track record of improving operational efficiency and enhancing model performance through innovative approaches, such as creating dynamic prompt templates and implementing robust feedback systems.

Experience

Work history, roles, and key accomplishments

Senior AI/ML Engineer

Nomi Health

Feb 2020 - May 2025 (5 years 3 months)

Led the development of a major high-impact, LLM-based Generative AI platform using GPT-3.5, FLAN-T5, and Vertex AI to automate federal healthcare policy analysis. Designed a retrieval-augmented generation (RAG) pipeline that leveraged LangChain, FAISS, and Sentence Transformers, allowing extraction during real-time semantic search with vector injection for context.

Flan T5 GPT 3 Vertex AI Lang Chain Faiss Sentence Transformers OpenCV LayoutLMv3 Dialogflow

AI/ML Developer

Boston Consulting Group

Oct 2017 - Dec 2019 (2 years 2 months)

Designed and implemented Fintron’s scalable, secure AI-driven software solutions for large-scale financial institutions, with an especial focus on fraud detection, transaction anomaly detection, and credit risk modeling. Led initiatives and MLOps for deploying state-of-the-art Large Language Models (LLMs, e.g., GPT, BERT) for financial document classification, regulatory document parsing, and natu

Hadoop Java Python GCP TensorFlow Django Pandas NumPy SQL

Software Developer

Tango Analytics

Sep 2015 - Aug 2017 (1 year 11 months)

Participated in the creation of software apps, like web and mobile applications utilizing Python, Java, and JavaScript. Built scalable and maintainable web apps for generative AI services using TensorFlow, PyTorch, Django, Flask, React and MongoDB.

Python Java JavaScript TensorFlow PyTorch Django Flask React MongoDB OpenCV HTML CSS RESTful APIs AWS Apache Kafka

Education

Degrees, certifications, and relevant coursework

Unknown University

Master of Science, Computer Science

Completed a Master of Science in Computer Science, focusing on advanced topics and research within the field. Gained in-depth knowledge and practical skills relevant to modern computing challenges.

Unknown University

Bachelor of Science, Computer Science

Obtained a Bachelor of Science in Computer Science, building a strong foundation in programming, algorithms, and data structures. Developed core competencies essential for a career in technology.