CONTACT

SOFTWARE
ENGINEER

COINBASE / VANCOUVER
COGNITIVE SYSTEMS / AI

PERSONAL WEBSITE
INDEPENDENT WORK & SELECTED HISTORYEXPLORE THE WORK

ABOUT

SOFTWARE / COGNITION / CURIOSITY

I’M YAJAS.
A SOFTWARE ENGINEER
AT COINBASE.
BASED IN VANCOUVER.

MY BACKGROUND IS IN COGNITIVE SYSTEMS. MY INDEPENDENT WORK EXPLORES HOW SOFTWARE AND AI ACT IN THE WORLD.

I studied Cognitive Systems at the University of British Columbia and am continuing my studies at Georgia Tech. Outside work, I build tools for AI governance, world models, and agents that learn to act in simulated environments.

SELECTED PROJECTS

SOURCE CODE / PUBLIC REPOSITORIES
01

Arbiter

AI systems

A checkpoint between AI agents and the tools they use. Policy decisions become signed, short-lived permits that are verified before a tool can act.

Policy enforcement · Signed permits · Audit trails

AI GOVERNANCE / GO + OPA

VIEW SOURCE
02

TinyJEPA

World models

An object-centric world model for visual scenes with occlusion. It learns to predict hidden object trajectories and evaluates how well its uncertainty matches what happens next.

Object permanence · Hidden-state prediction · Counterfactual rollouts

WORLD MODEL / PYTHON + JEPA

VIEW SOURCE
03

BallGobbler

Reinforcement learning

A reinforcement-learning bot for a competitive capture-the-ball game. The agent observes the arena, collects balls, returns them to base, and uses a laser against its opponent.

Reward shaping · Environment observations · Learned game behavior

GAME AGENT / UNITY + ML-AGENTS + C#

VIEW SOURCE
MORE EXPERIMENTS ON GITHUB

WORK HISTORY

ROLES / ORGANIZATIONS
Current

Coinbase

Software Engineer

Vancouver
Jul 2023 — Mar 2025

Citi

Software Developer

Greater Toronto Area, Canada
Nov 2021 — Jun 2023

Visual Cognition Lab

Software Developer

Vancouver, Canada
May — Jul 2021

CarDekho

Data Science Intern

Gurugram, India

EDUCATION

CONTINUED LEARNING
2025 — 2027

Georgia Institute of Technology

MSc Computer Science

2019 — 2023

University of British Columbia

BSc Cognitive Systems: Brain and Behavior

CONTACT

HUMAN TO HUMAN

LET’S
TALK.

A PROJECT, A QUESTION,
OR A CONVERSATION
ABOUT SOFTWARE.