Dorian Benhamou Goldfajn

Computer Science Student & AI/ML Researcher

About Me

I'm an undergraduate computer science student at the University of Massachusetts Amherst graduating in May 2026. I'm advised by Prof. Shlomo Zilberstein at the Resource-Bounded Reasoning lab, where I currently research multi-agent Vision-Language-Action coordination. I'm also a part-time SPAR Research Fellow, evaluating LLM alignment targets under Andy Liu's mentorship. I've worked at Nasdaq for 3 terms, building and deploying several multi-agent LLM systems. I was also a Project Lead at BUILD UMass, where I led the development of an LLM system for a non-profit, New England First Amendment Coalition. My personal projects span from theoretical explorations in developmental interpretability to full-stack LLM applications.

I enjoy building projects that allow us to better understand models or that allow models to better understand the world. I'm particularly interested in AI alignment, interpretability, and physical intelligence (VLAs, world models, video-action models, etc...).

Education

University of Massachusetts Amherst, Honors College
Bachelor's of Science - Computer Science, Honors | GPA: 3.9
Expected Graduation: May 2026
Sample Coursework: Machine Learning, Health Analytics, Bioinformatics, Robotics, Algorithms, Linear Algebra, Calculus III

Research

Supervised Program for Alignment Research Remote
Research Fellow
Feb 2026 - Present
  • Evaluating and improving LLM alignment targets
Resource-Bounded Reasoning Lab (Prof. Shlomo Zilberstein) Amherst, MA
Student Researcher - Multi-Agent VLAs
Aug 2024 - Present
  • Training Vision-Language-Action models and designing coordination frameworks for multi-agent systems
  • Developing MARL and data generation environments in Isaac Lab for large-scale HPC parallel policy training
The Katz Lab Amherst, MA
Student Researcher - Computational Microbiology
June 2023 – June 2024
  • Trained, evaluated, and fine-tuned neural networks for animal pose-estimation and behavior classification

Experience

Nasdaq Boston, MA
AI Research & Development Fellow – Sustainable Lens
Sep 2025 – Dec 2025
  • Developed a fully deployed LangGraph pipeline with safety guardrails, serving over 5,000 Nasdaq-listed companies
  • Implemented web, SQL, Elasticsearch, and deep agents on high-stakes sustainability data from 11,000 companies
Nasdaq Boston, MA
AI & Software Engineer Intern - Nasdaq Labs
June 2025 – Aug 2025
  • Built a multi-agent system from concept to deployment for streamlining the product development cycle
  • Engineered LLM orchestrator agents for multi-step decision-making, saving ~37,500 hours ($2M) annually
Nasdaq Boston, MA
Software Engineer Intern – GenAI Platform
June 2024 – Aug 2024
  • Automated document generation and processing using LLMs, Python, LangChain, AWS, and React
  • Reduced processing time 10x, contributing to an estimated $15.4M in annual savings

Leadership

Build UMass
Project Lead & Software Engineer
Sep 2023 – Sep 2025
  • Led a team of 13 SDEs and PMs on an initiative with New England First Amendment Coalition (NEFAC)
  • Developed a multi-agent production-ready RAG system using LangChain, FastAPI, AWS, React, and Python

Featured Projects

Saruman

Python

An AI red teaming tool that simulates attacks to benchmark LLM security. Features a variety of attacker personas, configurable defenses, real-time conversation streaming, and experiment analytics. Built with FastAPI + React + LiteLLM.

Stars: 2 Updated: Jan 2026
View on GitHub →

SLT Experiments

Jupyter Notebook

Singular Learning Theory research experiments in the context of curriculum learning, finetuning, and direct training in modular arithmetic tasks using PyTorch and devinterp.

Stars: 1 Updated: Jan 2026
View on GitHub →

Franka Table

Python

A simulation environment of 4 Franka Panda arms on a table for multi-agent RL training using MuJoCo and Gymnasium.

Stars: 1 Updated: Nov 2025
View on GitHub →

Spot Multi-Agent

Python

An Isaac Sim environment for the Spot robot with arm, designed to train multiple VLAs.

Stars: 0 Updated: Dec 2025
View on GitHub →

TinyLLMs

Python, JAX

Small JAX experiments on a character-level language model, comparing constant, linear, MLP, and two-layer baselines.

JAX, LLMs
View on GitHub →

Precision Leukemia Treatment

Python

Developed 8 ML models on clinical data of 4,600+ patients to predict transplant outcomes with feature importance analysis.

Scikit-learn, Pandas
View on GitHub →

EliteCode

TypeScript, Swift

Co-founded an educational micro-learning interview-prep mobile platform with serverless AWS backend. Left to pursue AI research.

AWS, React Native

Publications

Skills

Programming Languages

Python (4yrs) Java (3yrs) TypeScript (2yrs) JavaScript (2yrs) C (1yr) Swift (1yr) SQL (1yr)

Machine Learning & AI

PyTorch Scikit-learn Pandas NumPy Matplotlib OpenCV HuggingFace LangChain LangGraph PydanticAI NetworkX Keras JAX SciPy CUDA Slurm

Frameworks & Cloud

AWS React PostgreSQL MongoDB Flask FastAPI GraphQL React Native Git Linux

Languages

Hebrew (Fluent) English (Fluent) Portuguese (Elementary) Spanish (Elementary)

Interests

Soccer
Footvolley
Music
Skating
Surfing
Snowboarding
Travel

Countries I've Visited