hiring + trust surface

Senior data engineer building useful products in public.

Built by Chris S. Yoon. Hiring-focused surface for proven data engineering, small product loops, and visible execution.

See selected work Read background

Experience

10+ years

Data engineering across fintech, media, and enterprise.

Latest role

Senior Data Engineer

Most recently at theScore / ESPN Bet.

Current track

Visible execution

Small product loops and public proof.

how this site works

Credibility up front. Execution underneath.

1% Better.dev

1% Betterdev · ship small. learn fast.

Make the work legible fast, then let the products and repos carry the proof.

Background first. Proof underneath.

Useful scope beats bigger promises.

Public work should feel easy to trust.

What this site proves

Depth

Product work on real engineering footing.

Range

Product judgment, engineering craft, shipping discipline.

Pace

Recent work that stays easy to verify.

Separate verticals

Specialist lanes stay separate.

The dev surface stays centered on hiring and credibility.

Future surface area should be earned.

Selected work · linked activity

Selected work and public proof.

Active product loops, supporting systems, and proof of work.

Current Product Work

Small product loops that show judgment and active execution.

Current product

1% Better Today

A narrow daily product loop built to ship quickly and earn trust through use.

Building

PrototypePrivate build

Core brand product

Target MVP: April 2026

Current product

1% Better - Focus

A lightweight focus timer that shows the same thesis in practice: simple, useful, and shippable.

Building

MVP LoopPublic repo

Shipping quietly

Target MVP: March 2026

Poker Vertical

A separate specialist lane. Visible, but not the main hiring story.

Separate specialist lane

Poker remains visible, but secondary.

1% Better.poker stays separate from the recruiter-facing story here.

Not the main hiring story

Operating Layer

The public site and internal systems behind the surface.

1% Better - This Website

sukminc/one-percent-better-landing

The public front door for hiring, trust, and the whole shipping story.Live ✓

MVP reached

Next.js

TypeScript

Vercel

1% Better - OS

Workflow automation for repeatable project shipping.Ops Layer · Ready

Target MVP: March 2026

Internal workflow system already supporting the portfolio

Workflow engine activeLanding sync in useWeekly ops layer running

Python

GitHub Actions

JSON

CLI

Archive / Proof of Work

Past work that keeps engineering depth visible.

Blue Jays Moneyball ETL

sukminc/bluejays-financial-mlops

Archive of data engineering work and pipeline thinking.Archive

Proof-of-work archive

Python

Apache Airflow

PostgreSQL

Docker

GitHub Actions

TwelveLabs API Validator

sukminc/TwelveLabs

Interview challenge archive for multimodal API validation.Archive

Proof-of-work archive

Python

TwelveLabs

Pytest

About

Chris S. Yoon

10+ years in data engineering, validation, and automation. Most recent role: Senior Data Engineer at theScore / ESPN Bet. Current proof layer: small products, public repos, visible execution.

Open to Senior Data / Platform / AI Product roles

Recruiter path

Career context, then current work.

Background first, then current work, then LinkedIn or GitHub if you want more.

Read background Open LinkedIn