SDE at Rimo · Tokyo

Software engineer building backend systems and real-time AI products.

I'm an SDE at Rimo in Tokyo, working across Go backends, Next.js frontends and in-browser ML. Before that I built voice-AI and video-analysis infrastructure at Connexlab.

See my work View résumé

01 — Selected work

Things I've built

All projects

goCompOpen source

A distributed online judge in Go that runs untrusted submissions in isolated Docker containers across concurrent worker pools.

GoDockerRedisREST APIs

Vithos

VithosFull stack

A multi-tenant platform that turns PDF lab reports into a queryable health dataset, with RAG chat over a person's medical history.

Next.jsExpress.jsSupabasepgvector

The phone running Termux, with tmux sessions for the tunnel, the Vithos API and the deploy webhook

nas-deployBackend

Runs the Vithos API on a spare 2018 Android phone, with public HTTPS through Cloudflare Tunnel and a deploy on every push to main.

Node.jsCloudflare TunnelGitHub ActionsTermux

02 — Experience

Where I've worked

Rimo LLC

Tokyo, Japan

Software Development Engineer (L3)Oct 2026 — Present

Own backend services in Go and shared UI components in Next.js for Rimo's real-time meeting product.
Extend the in-browser retrieval pipeline (BERT via ONNX Runtime Web) and the Redis-backed notification and queue infrastructure.
Work with product and infrastructure teams on latency, reliability and search relevance across the platform.

Software Engineer InternAug 2025 — Sep 2026

Developed and maintained scalable backend APIs in Go and built reusable UI components in Next.js.
Built a real-time retrieval-augmented pipeline for live in-meeting question suggestions, running a BERT model client-side via ONNX Runtime Web with WebGL acceleration.
Implemented in-app notification infrastructure with scheduled cloud triggers and Redis-backed, queue-based event delivery.
Reduced legacy API latency with pagination and by moving expensive client-side search to Elasticsearch-backed server-side queries.

Connexlab (now Keogram Labs)

Remote

Backend InternMay 2025 — Aug 2025

Built a real-time AI interviewer on the LiveKit Agents SDK with OpenAI speech-to-text and text-to-speech pipelines.
Developed a YOLO-based, frame-by-frame cheat-detection microservice for interview proctoring with async AWS SQS event processing.
Designed fault-tolerant worker infrastructure on AWS Fargate Spot with dead-letter queues for resilient video analysis and retries.

03 — Hackathons & achievements