Marcus Izumi

CS @ BUJapanese–English bilingual

I explore AI agents, the intersection of markets and technology, and creative tech like generative music experiences. These are my experiences and projects.

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· Experience ·

Experiences & Impact

Boston University Spark!•Sep 2025 – Present

Technical Teammate · BU Spark!

Shipping BU FitCheck at BU Spark!, a hybrid web/mobile app that keeps thrift shop inventory and student browsing in sync.

Next.js
Ionic Framework
React
TypeScript
Firebase Firestore
Google Cloud Functions
Cloud Vision API
OpenAI API
TailwindCSS

Developed a hybrid Ionic + Next.js interface so shop owners can manage stock and students can browse listings in real time.

Modeled serverless Firestore schemas and Cloud Functions that keep inventory updates under 150ms round-trip.

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Boston University Spark! experience preview

SMBC Nikko Securities•Jul 2025 – Sep 2025

Equity Systems Developer Intern

Collected observability metrics from KDB+ databases that process hundreds of millions of Tokyo Stock Exchange records each day and surfaced system and pipeline latency issues.

KDB+ / q
TorQ
Grafana
Prometheus
Linux
Shell
Python

Shipped Prometheus exporters in q that emit CPU, memory, I/O, and latency metrics across TorQ components.

Designed Grafana dashboards that visualize process lifecycles and flag RDB/HDB performance regressions in real time.

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SMBC Nikko Securities experience preview

WorkX, Inc.•Jun 2024 – Sep 2024

Full-Stack Engineering Intern

Built automation for WorkX’s consultant-matching platform during a full-stack internship in Tokyo.

React
TypeScript
Firebase
Google Cloud Functions
OpenAI API
Node.js
PostgreSQL
Docker
Prisma
DBeaver

Built React workflows that guide consultants through profile setup and availability updates.

Integrated OpenAI pipelines that extract key skills from resumes and automate consultant-to-project matching.

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· Projects ·

Featured Projects & Experiments

Echodio — Immersive Audio Rooms

May 2025 – Jun 2025

Weather-reactive ambient music app that syncs visuals and Suno AI soundscapes to the listener’s environment.

Next.js
React
Firebase
Node.js
Firestore
OpenWeather API
GoAPI (Suno AI)
TailwindCSS

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AlphaAgents for Stock Evaluation

Aug 2025 – Present

Debate-driven multi-agent framework that reverse-engineers BlackRock’s Aug 2025 portfolio construction research for stock evaluation.

Python
FastAPI
OpenAI API
Matplotlib
Server-Sent Events
JSONL
Jinja

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SpaceCafe — BostonHacks 2024

Nov 2024

Immersive virtual café that reconnects astronauts with Earth through 3D storytelling, ambient audio, and live chat.

Node.js
Express
React
Three.js
Socket.io
Firebase
Google Cloud Platform
CSS Animations

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Let's connect

I'm exploring AI agents, market-tech systems, and music-driven interfaces. Message me on LinkedIn if you want to collaborate or chat about tech.

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