A personal notebook · Chula Vista, CA

Jay Balangue

Hi, I'm Jay — a software engineer, technical writer, and musician.

I build cross-platform applications and open-source libraries, publish technical articles on DEV and Coder Legion, and share piano music on SoundCloud and YouTube.

Explore the work below
Piano keys with the JB monogram
At the keys, and between disciplines. Music. Words. Code.

What I do

Three ways of making things.

Music

Piano covers shaped by eclectic taste and reinvention.

SoundCloud / YouTube / Original music

Writing

Technical articles.

DEV / Coder Legion

Software

Thoughtful, customer-focused engineering.

Web applications / Open-source libraries

01

At the piano

Music / Releases

Music across genres, reimagined for solo piano.

Piano interpretations, original compositions, and music videos.

SoundCloud · 1.4K followers / 27 tracks
YouTube · 7.3K subscribers
Since Dec 2025

02

On the page

Writing

DEV

Coder Legion

03

At the workbench

Software / Open source

Thoughtful, customer-focused engineering.

Cross-platform applications and open-source libraries.

GitHub Code

  • JamSpot

    Cross-platform music discovery

    A web and mobile application for discovering local concerts, exploring artists, and sharing live music experiences through community reviews.

    JamSpot website GitHub repo

  • MoFlux

    Website

    Admission control for shared LLM inference, protecting interactive workloads while lending spare capacity to batch traffic.

    Since Jul 2026

    MoFlux website

  • MoFlux Bench

    LLM admission-control benchmarking

    A benchmarking harness for evaluating LLM admission control, workload isolation, and capacity restoration under contention.

    MoFlux Bench repo

  • Tyr Admission Controller

    LLM admission control

    A TypeScript admission controller for LLM workloads, enforcing concurrency and token budgets to protect shared inference capacity.

    Tyr Admission Controller repo

  • Async Bulkhead LLM

    TypeScript library · LLM admission control

    A TypeScript library that protects LLM applications from overload through concurrency limits, in-flight token budgeting, and backpressure.

    GitHub repo npm package

  • LoadLens

    Interactive systems simulator

    A web application for exploring system behavior under load, comparing fail-fast admission control with bounded queues through interactive simulations.

    LoadLens web app GitHub repo

  • Systems Under Load

    Technical journal

    A Java/Spring Boot/HTMX technical journal on admission control, backpressure, and how systems behave under load.

    Systems Under Load repo Systems Under Load website

04

Elsewhere

A few useful doors

The work continues in a few other places.

Get in touch

Say hello.

For collaborations, consulting, or just saying hello — feel free to reach out.

[email protected]
Location
Chula Vista, CA