Aahil MehtaAahil

Founder · Engineer · Researcher

SandboxBlog

Experience

2017 - present
2022 - 2026

Senior Software Engineer · Google

TL for a Jax-based recommender-system framework used across and beyond Google; researched transformer architectures for sequence modeling.

Google
2021

ML Engineer Intern · Synthesized

Researched measuring and mitigating bias in data; built and launched an open-source Python library for assessing fairness in ML models and datasets.

Synthesized
2020

Software Engineer Intern · Augnito

Built a contextual sales bot in Python and added voice-enabled features to a medical transcription application.

Augnito

Projects

things I've built
Build-A-Story

Build-A-Story

GenAI · Hackathon

AI generated stories for kids, read aloud to them by realistic voices. ICHack 2022 runner-up.

ICHack '222022
FairLens

FairLens

Open source · Fairness ML

An open-source library to assess fairness in machine-learning models and in data.

OSS2021
Stock Dashboard

Stock Dashboard

Finance · Full stack

A dashboard analyzing S&P 500, FTSE 100 and NIFTY 50 stocks on quantitative value indicators.

Django + React2021
AlphaZero Pawn Race

AlphaZero Pawn Race

Reinforcement learning

An AlphaZero-style engine for a pawns-only chess variant. Policy-value network plus Monte Carlo tree search.

RL2020
WACC Compiler

WACC Compiler

Compilers

A compiler for the WACC language in Java, with SSA-based constant propagation and liveness analysis.

Compilers2020
Porcupine Smart Mirror

Porcupine Smart Mirror

Deep learning · IoT

A Raspberry-Pi smart mirror that detects people and rates their outfits. ICHack Best IoT hack.

Award2020

Recent writing

all →
Jun 2026·5 min

Training a Powerful Text Encoder

Notes on building text encoders from scratch: turning raw text into embeddings where distance actually means something.