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Elizabeth Stein
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Case study

enterprise2023-2024

Coulson One

Enterprise-scale TypeScript/React application with 64,806 files. Led architecture decisions and core feature implementation for aviation resource management.

Where I learned to build at scale and lead teams

Field notes

Role

Software Engineer

Context

Coulson Aviation

Read order

Evidence first, then constraint → build → proof. Use the chapter rail to jump sections; orbit to adjacent work from the bottom of the case study.

Enterprise Missions·✦Ω-Class Supergiant
★FEATURED

Evidence

System surface

No public screenshot on file—generative preview stands in for the visual layer.

Signature viewpreview

Story arc

How this shipped

Where I learned to build at scale and lead teamsThree beats: what pressed against the work, how the stack answered, and what changed once it was live.

I · Constraint

The brief

Navigating a massive 64,806-file enterprise codebase while contributing meaningful features to an aviation resource management platform used in real operations.

II · Build

The craft

Focused on understanding existing patterns before making changes. Contributed to architecture decisions, implemented core features with comprehensive testing, and maintained strict type safety across the monorepo.

III · Proof

What moved after launch

Successfully shipped features to production used by aviation operations teams. Improved codebase maintainability through comprehensive test coverage and documentation.

Signals

◆Signals & scale

0
Files in Codebase
Live Ops
Production Users
0
Type Coverage

Engine room

At a glance

0
Files

Inventory

Stack & signals

TypeScriptReactNext.js
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