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tensorsofthewall/README.md

Hey, I'm Sandesh 👋

I'm a research engineer interested in LLMs, multimodal AI, computer vision, and autonomous systems. I enjoy the research side of ML as much as getting things to work on real hardware.

Website · LinkedIn · Email

What I've been working on lately

TBCCL project logo

I wanted to use my Mac mini M4 and NVIDIA laptop together for distributed ML. That turned into TBCCL, an experimental C++ collective communication runtime spanning macOS, Linux, CUDA, and Metal-shared memory, using TCP (including Thunderbolt IP).

TBCCL runs on both a Mac mini and an NVIDIA Linux laptop, communicating over TCP and Thunderbolt IP.

Core runtime · PyTorch · vLLM · Exo · Docs

Illustrative semantic video codec flow and #1 leaderboard result, official score 0.134 as of October 21, 2026.

My submission to comma.ai's video compression challenge. It reached #1 on the official leaderboard on October 21, 2026 with a score of 0.134 (lower is better). I worked on rate-aware semantic-token refinement, algebraic renderer folding, and more compact model-state packing.

Code · Submission · Experiment write-up

Earlier projects & research

UniLCD · ECCV 2024

UniLCD research overview figure for local-cloud decision-making in autonomous systems

At Boston University's H2X Lab, I worked on UniLCD, using residual reinforcement learning to decide when an autonomous system should compute locally and when it should use the cloud.

Project page · Paper

Other projects and contributions: Exo · BetterSearch · VidTune · Robotics

Research & background

Previously a Research Engineer at MBZUAI (Aug 2025 – Aug 2026), working on LLM training, post-training, and distributed inference, from 70B-class fine-tuning to trillion-parameter MoE serving. Before that, I worked on vision-language models and autonomous driving at Boston University's H2X Lab.

Publications: UniLCD · ECCV 2024 · Gait re-identification · ETCCS 2020

Beyond the terminal

I play guitar, enjoy making music, and have spent more time than expected convincing different computers to cooperate. "Hurricane Sandy" was once a stage nickname, thanks partly to some rather spiky hair.

I'm looking for the right research or engineering role. If you're working on something interesting, I'd love to chat.

Pinned Loading

  1. tbccl tbccl Public

    Collective communication runtime for heterogeneous Linux/macOS systems over Thunderbolt IP.

    C++ 1

  2. comma_semantic_folded comma_semantic_folded Public

    Semantic codec with rate-distortion optimization and renderer folding. #1 on comma.ai's video compression leaderboard (Oct 2026)

    Python

  3. DIASENGUPTA/UniLCD DIASENGUPTA/UniLCD Public

    Unified Local-Cloud Decision-Making with Residual Reinforcement Learning

    Python 4 2

  4. vllm-tbccl vllm-tbccl Public

    TBCCL adapter for heterogeneous vLLM pipeline parallelism across CUDA, CPU and Metal.

    Python

  5. BetterSearch BetterSearch Public

    Desktop search tool that brings natural language to traditional file search.

    Python 5

  6. exo-explore/exo exo-explore/exo Public

    Run frontier AI locally.

    Python 48k 3.6k