About me

I’m a computer science student focused on deep learning research. I work on language and multimodal models, with a particular interest in how they learn, adapt, and behave.

See my research and experiments →

Experience

Work and education

May 2026 — August 2026

A10 Networks

San Jose, CA

Deep Learning Engineer Intern — AI Firewall Team

  • Architected and trained TrooperViz, a multimodal safety guardrail model built with Python, PyTorch, and Hugging Face Transformers, enabling evaluation of text, image-text inputs, multi-turn conversations, and assistant-generated outputs.
  • Fine-tuned a vision-language model for multimodal safety classification and merged it with a text-only guardrail model using SLERP, creating one system for visual, conversational, and generative-AI interactions.
  • Built data and evaluation workflows for annotation, preprocessing, synthetic conversation generation, benchmarking, and interactive inference with Gradio and vLLM.

Python · PyTorch · SFT · SLERP · vLLM · Hugging Face · W&B · CI/CD

October 2025 — April 2026

Routes Technologies

Remote, TX

AI Engineer Intern

  • Architected an LLM-powered NL-to-SQL RAG pipeline with few-shot prompting, input normalization, parameterized SQL sanitization, session memory, and W&B observability across five Azure ML endpoints.
  • Built an SVD collaborative-filtering recommendation pipeline and an LLM-driven taste profiler for nightly user preference generation.
  • Engineered recipe ingestion using Scrapy, Instagram and TikTok integrations, GPT-4o-mini classification, language filtering, and audio transcription fallback.

Python · SQL · Azure ML · scikit-learn · Sentence Transformers · W&B · Scrapy

May 2025 — August 2025

Dreamable Inc.

San Francisco, CA

AI/ML Engineering Intern

  • Trained, tuned, and deployed ML models in a production cloud environment using Python, PyTorch, TensorFlow, and Hugging Face.
  • Fine-tuned Qwen-2.5-7B with LoRA on GCP and tracked experiments with Weights & Biases.
  • Curated NLP datasets and built a generative-AI outreach agent with LangChain and the OpenAI API.

Python · PyTorch · TensorFlow · Hugging Face · LoRA · GCP · LangChain · W&B

Education

San Jose State University

B.S. Computer Science · GPA 3.88 · 2026–2027

  • NSP research with Professor William
  • CodePath Advanced DSA training
  • Dean’s List Honoree

San Francisco State University

Computer Science (transferred) · 2023–2025

  • VP of AI Club & Tech Lead at SparkSF
  • Hosted SFHacks for more than 400 attendees
  • Dean’s List Honoree

Projects

Open-source repositories and model weights

LLM Firewall for Agentic Tool-Calling

Low-latency inline defense for prompt injection. A GPT-2 attacker loop reduced bypass from 23.1% to 3.72%; BERT with LoRA adds about 20 ms latency.

theHelper — AI Research Assistant

Production RAG with FAISS, LangChain chunking, cross-encoder reranking, local observability, and CI-gated QA.

Kanting — Video RAG System

Indexes YouTube transcripts with Whisper and returns precise clip timestamps through semantic search.

AdaptRoute

Task-aware routing from a query to specialized models.

GatorGPT

A 63M-parameter transformer for consumer GPUs, using Grouped Query Attention and RoPE.

How LLMs Are Made

Annotated implementations of GPT-2, DeepSeek MoE, and Kimi from scratch.

Hugging Face weights

MedAssistGPT 303M & 401M

Medical-domain transformers trained on PubMed, using SwiGLU, GQA, and RoPE.

Hugging Face

Qwen2.5-0.5B SFT+DPO 0.5B

A chat model fine-tuned with SFT and Direct Preference Optimization.

Hugging Face

Llama-3.2-3B OpenHermes 3B

QLoRA fine-tuning on filtered OpenHermes conversational datasets.

Hugging Face

StableLM 1.6B SFT+GRPO 1.6B

Aligned with GRPO on PKU safety preferences.

Hugging Face

Skills & credentials

Tools I use and things I’ve completed

LLM engineering

Transformers · SFT · DPO · GRPO · PPO · LoRA/PEFT · TRL · vLLM · Quantization · Vector databases

ML & NLP

PyTorch · TensorFlow · scikit-learn · LangChain · FAISS · Whisper · BART · Sentence Transformers · Pandas · NumPy

Backend & cloud

FastAPI · Flask · Docker · Azure ML · GCP · PostgreSQL · MongoDB · Scrapy · Nginx · CI/CD

Programming

Python · SQL · Java · JavaScript · C++ · Bash · R · HTML/CSS · Git · Linux

Hackathons

  • CalHacks 12.0 — Palace of Fine Arts, SF
  • MCP AWS Agentic Challenge — AWS Builder Loft, SF
  • SacHacks — Virtual
  • HackMerced — UC Merced
  • Cal Hacks 11.0 — San Francisco

Certificates

  • AI Memory: LLM Memory Systems — LinkedIn
  • Fine-Tuning for LLMs: Beginner to Advanced — LinkedIn
  • Model Context Protocol (MCP) — LinkedIn
  • Introduction to Generative AI — Google Cloud
  • Introduction to Web Development — UC Davis
  • Programming in Python — University of Michigan
  • Special Theory of Relativity — Stanford University
  • Calculus through Data & Modelling (×4) — Johns Hopkins

Hobbies

Outside of deep learning

Astrophotography

I photograph planets, star clusters, galaxies, and nebulae using long exposures and image stacking.

View my astrophotography collection →

A star named after me

There is also a registered star carrying my name.

View the star record →

Contact

For fine-tuning work, alignment evaluation, model safety, or just to say hello

The easiest way to reach me is by email.

kunjcr2@gmail.com