Independent ML Researcher

Independent ML Researcher focused on NLP, LLMs, AI safety. I'm drawn to the unsolved parts of the field, where the science is still being written and the engineering hasn't caught up yet, and building the systems that make those ideas real.

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Education

M.S. in Computer Science
2021 - 2023
University of Iasi

Thesis: Efficient Deep Single-Image Super-Resolution on Mobile Devices
Supervisor: Prof. Dr. Radu Timofte
A study on deep learning-based methods for efficient mobile SISR across multiple upscaling factors (×2, ×3, ×4), optimizing first for PSNR then perceptual loss. Architectures were kept deliberately shallow to minimize inference time, compensating through increased width to maximize GPU parallelism.

B.S. in Computer Science
2017 - 2021
University of Iasi

Thesis: Resource Streaming using a Peer-to-Peer Architecture
Supervisor: Prof. Dr. Lenuta Alboaie
Proposed a decentralized P2P resource streaming framework with no imposed hierarchy, eliminating single points of failure and reducing privacy risk. The architecture uses locality-aware distributed hash tables (LDHTs) for per-node network state and a custom epidemic protocol for network-wide information propagation.

Experience

Independent ML Researcher 2025 - Present
  • Authored DEX (Data-Emergent Experts), a dense MoE-inspired architecture with an embedding-based router that clusters the training corpus by document meaning and assigns each cluster its own expert, weighted by softmax similarity to cluster centroids, enabling on-demand capability removal by zeroing target experts while preserving retained knowledge
  • Authored ReViB (Recovered Visual Bias), a training-free contrastive decoding method that inverts an LVLM's visual encoding back into image space via unCLIP to recover and subtract the model's statistical bias, reducing object and attribute hallucination
  • Authored Halfway Speculative Decoding, proposing joint drafter-target training via LK loss optimization with cross-entropy regularization on the target, achieving competitive draft acceptance metrics using only 9\% of the training data required by prior approaches
Senior Software/AI Engineer 2024 - Present
Spotted Zebra
Designed and shipped agentic AI systems across the full stack, from architecture through production:
  • Built agentic AI pipelines end-to-end, including monitoring and observability
  • Played a major role in the company's agentic AI transition, contributing to technical direction and architecture decisions
  • Implemented embedding model-based semantic indexing and retrieval systems
  • Actively consulted on AI and data science decisions, shaping how the team approached and integrated intelligent systems
Software Development/DevOps Engineer 2021 - 2023
Amazon
Built and maintained the data infrastructure and pipelines powering a deep learning system serving millions of users worldwide:
  • Handled massive data volumes across distributed systems, ensuring data quality, feature reliability, and pipeline integrity that models directly depended on
  • Actively consulted the ML team on causality analysis algorithms and contributing technical input throughout the model design and development process
  • Managed complex DevOps workflows and large-scale deployment pipelines for global production systems
Intern Software Development/DevOps Engineer 2020 - 2020
Amazon
Designed and built an AI chatbot capable of knowledge retrieval and contextual answer formulation, delivered end-to-end:
  • Architected a scalable, production-grade system from scratch, owning the full pipeline from design through deployment

Skills

Languages
Python C C++ Go Mojo Java JavaScript
DL/ML
DeepSpeed PyTorch Tensorflow Keras CUDA scikit-learn
Training
Pretraining Distributed Training PEFT SFT RLHF RLAIF DPO GRPO LoRA QLoRA Unsloth
GenAI
Transformers Diffusers vLLM LangChain LangSmith LangGraph LlamaIndex llama.cpp
Infrastructure
Docker Kubernetes AWS GCP Azure CDK Terraform

Certifications

LLM Course
LLM Course
Hugging Face
LLM Post Training Course
LLM Post Training Course
Hugging Face
Deep Learning Specialization
Deep Learning Specialization
DeepLearning.AI
Machine Learning Specialization
Machine Learning Specialization
DeepLearning.AI, Stanford Online
Mathematics for Machine Learning and Data Science Specialization
Mathematics for Machine Learning and Data Science
DeepLearning.AI, Serrano Academy
PyTorch for Deep Learning Specialization
PyTorch for Deep Learning Specialization
DeepLearning.AI
TensorFlow Developer Professional Certificate
TensorFlow Developer Professional Certificate
DeepLearning.AI
AI Agents Course
AI Agents Course
Hugging Face
AI Agents MCP Course
AI Agents MCP Course
Hugging Face
Generative AI for Software Development Specialization
Generative AI for Software Development
DeepLearning.AI
Generative AI for Software Development Specialization
Data Engineering Specialization
DeepLearning.AI, Amazon Web Services
Data Analytics Specialization
Data Analytics Specialization
DeepLearning.AI
AI for Good Specialization
AI for Good Specialization
DeepLearning.AI
AWS Partner: Technical Certification
AWS Partner: Technical
Amazon Web Services
Database Design and Programming with SQL Certification
Database Design and Programming with SQL
Oracle