Adversarial ML Researcher · AI Security · GPU Systems

Kathmandu, Nepal
manjitpokhrel.com.np · Email · LinkedIn

I study multilingual alignment failures in instruction-tuned large language models and design training-free inference optimization systems for consumer GPUs.

My work operates at the intersection of:

• Adversarial robustness
• Tokenization asymmetries
• Multilingual safety alignment
• GPU kernel-level performance engineering

The first structured adversarial benchmark for Nepali LLMs.

• 1,200+ multilingual and code-switched adversarial probes
• 73.7% safety bypass rate in Nepali
• 0% bypass rate in English across the same models
• Evaluated across Qwen, Gemma, Llama, and Gemini

Revealed systemic tokenizer and alignment asymmetries in low-resource languages.

A sub-tokenization attack exploiting Devanagari–Latin code-switching.

Demonstrates how tokenizer fragmentation can bypass safety-aligned boundaries without semantic mutation.

Training-free activation sparsity framework for LLM inference.

• Sparse row-packing CUDA kernels
• No retraining
• No fine-tuning
• Up to 110.5% inference speedup on RTX 5060

Designed for consumer-grade hardware deployment.

Systematic evaluation of:

• Prompt injection attacks
• Jailbreak vulnerabilities
• Multilingual safety failures
• Alignment boundary inconsistencies

Across open-weight and proprietary instruction-tuned models.

2026
Lost in Translation: Safety Alignment Failures in Nepali and Code-Switched Variants of Instruction-Tuned Large Language Models
Zenodo

2026
GhostWeight: Training-Free Activation Sparsity for LLM Inference on Consumer Hardware
PyPI / GitHub

2026
Google AI VRP — Multilingual Alignment Bypass Disclosure (Triaged)

2026
Meta Whitehat — Multilingual Safety Asymmetry Disclosure (Submitted)

Adversarial ML & Security
Prompt injection · Jailbreak evaluation · PGD · Membership inference · Responsible disclosure

ML Frameworks
PyTorch · Transformers · PEFT · HuggingFace · NumPy · scikit-learn · llama.cpp

GPU & Systems
CUDA 12.6 · CUDA C · Sparse matrix ops · CuPy JIT · Nsight Compute · Roofline analysis

Languages
Python · C++ · CUDA C · SQL · JavaScript

Infrastructure
Linux · Git · Docker · HuggingFace Spaces

Kathmandu University
BSc Computer Science — Expected 2029

Focus: Adversarial ML · AI Security · GPU Systems Optimization · Transformer Architectures