# Sung Jun Bok

Sung Jun Bok is a remote worker on Himalayas, Military Service at Republic of Korean Army, based in South Korea.

Source: https://himalayas.app/@sungjunbok

```text
I build AI-powered cybersecurity analytics and LLM retrieval systems.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | South Korea |
| Authorized to work in | South Korea |
| Salary expectations | 90k+ USD |
| Job categories | AI ML Engineer, Data Scientist, Machine Learning Engineer, Data Analyst |
| Skills | Python, NumPy, Pandas, scikit learn, Keras, Dask, AWS, AWS Sagemaker, SQL, Redshift, MySQL, NoSQL, MongoDB, Machine Learning, Deep Learning, Data Visualization, Tableau, Large Language Models, RAG, Vector Databases, Pgvector, ChromaDB, QLoRA, RLHF, Hugging Face, Web Scraping, Bidirectional LSTM, GRU, SVM, ANN, CNN, RNN, LSTM, Git, Microsoft Word, Excel, PowerPoint, One Drive, Zoom, Google Meet, English, Korean |
| Portfolio | https://github.com/sjbok |
| LinkedIn | https://linkedin.com/in/sung-jun-bok |
| GitHub | https://github.com/sjbok |

## About

```text
I built an AI-powered cybersecurity analytics platform for Hexaware Technologies and The Carlyle Group, processing PCAP traffic and system logs with Python, Dask, and AWS SageMaker. I also developed LLM-powered retrieval and RAG workflows with pgvector and Chroma for natural-language security-event analysis.

Through graduate data analytics projects at San Jose State University, I've fine-tuned LLM chatbots with QLoRA and RLHF, deployed models on Hugging Face, and built deep-learning classifiers for personality prediction and CAN bus intrusion detection.
```

## Experience

### Military Service

Republic of Korean Army. Feb 2025 - Aug 2026

```text
Earned ROKA's highest-level soldier fitness qualification through evaluation of physical performance, combat readiness, and military proficiency. Provided peer support and guidance to fellow soldiers regarding personal challenges, stress management, and adjustment issues.
```

Skills: Physical-Fitness, Combat-Arms-Readiness, Peer-Support, Stress-Management

### AI/ML Engineer

[Hexaware Technologies](https://himalayas.app/companies/hexaware-technologies-limited). Jun 2024 - Dec 2024

```text
Developed an AI-powered cybersecurity analytics platform and researched LLM and RAG architectures using vector databases.
```

Skills: AI, Machine-Learning, LLM, RAG, Vector-Databases, Cybersecurity

### Technician

Concept to Development. May 2022 - Aug 2022

```text
Worked alongside experienced technicians to analyze hardware and store in software. Managed inventory and planned the manufacturing process of machine parts.
```

Skills: Hardware-Analysis, Inventory-Management, Manufacturing-Planning

## Education

### San Jose State University

Master of Science, Data Analytics. 2022 - 2024

```text
Pursued a Master of Science in Data Analytics, completing the program in May 2024.
```

### San Jose State University

Bachelor of Science, Applied Mathematics with Computational Mathematics. 2019 - 2021

```text
Earned a Bachelor of Science in Applied Mathematics with a concentration in Computational Mathematics.
```

## Tech stack

- Tableau
- NumPy
- Pandas
- Dask
- MySQL
- MongoDB
- Python
- scikit-learn
- Keras
- Microsoft Excel
- Git
- Zoom
- Google Meet
- SQL
- Hugging Face
- ChromaDB
- pgvector
- Microsoft Word
- Microsoft PowerPoint

To contact Sung Jun, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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