Los Angeles, CA

Alex
Kim

I build production web experiences, full-stack products, native apps, and the automations that keep engineering teams moving.

View selected work All projects LinkedIn ↗ GitHub ↗ Email
2
Products shipped to Apple storefronts
7+
Years shipping production software
Web → Native
React, TypeScript, Swift and automation

About

Products that work beyond the interface

I'm a frontend engineer expanding into full-stack, native, and AI engineering. My work spans customer-facing acquisition products, browser extensions, App Store releases, backend integrations, and internal developer tooling.

I focus on the complete path from user action to system outcome: accessible interfaces, reliable data flow, observable API boundaries, safe releases, and maintainable automation.

The projects below are selected for working functionality and engineering depth—not repository count.

Skills

AI & Automation

Claude Code Cursor n8n OpenAI API Anthropic API Agent Workflows GitHub Copilot

Frontend

TypeScript React / Next.js JavaScript (ES6+) HTML CSS / SCSS (BEM) REST APIs Responsive Design Accessibility (WCAG)

Tooling & Methods

A/B Testing Jest / RTL Nx Monorepo Git / GitHub GA4 Admin API GTM API Google Analytics Jira Figma Agile / Scrum

Selected products

Built, integrated, and shipped

View every case study
RoleReady job application dashboard
Full-stack SaaS + Chrome extensionLive

RoleReady

A job-search operating system that turns a candidate profile into tracked applications, tailored documents, and browser-assisted autofill.

  • React 19, Express, Supabase and PostgreSQL
  • Google OAuth, Stripe and OpenAI integrations
Read case study
Little Logs baby tracking app
iOSApp Store

Little Logs

A private baby tracker designed for fast one-handed logging, useful history, and dependable local data.

Read case study
Cleanup macOS trash confirmation
Native macOSMac App Store

Cleanup

A SwiftUI utility that finds storage-heavy files and guides users through a deliberate, reviewable cleanup flow.

Read case study
ADA Compliance Scanner results panel
Chrome extensionLive

ADA Compliance Scanner

In-browser accessibility auditing with issue highlighting, remediation guidance, contrast fixes, and exports.

Read case study
Junk Gone 626 hauling service in operation
Lead-generation platformLive

HaulAway

An SEO-focused service website that connects local demand to quote requests and trackable phone leads.

Read case study

Selected professional engineering

The outcome, the system, and my contribution

Production work completed at Centerfield. These summaries cover only the changes I implemented; they do not claim ownership of the full brands or platforms.

2026 experimentation impact

A/B and multivariate tests shipped across AT&T, Spectrum, ADT, and Optimum.

$1.8M+ Estimated gross-profit contribution
81 wins From 248 experiments shipped
$238K Estimated GP from the highest-impact AT&T test $70K net GP · 38K users
+40% Form-completion lift from a redesigned flow
01New application launch

AT&T Internet Plans

Launched a responsive plan-discovery application with guided recommendations, bundle cards, offer handling, conversion tracking, and customer-support routes.

Google Places API

Built address autocomplete and validation through a server-side PHP proxy, keeping credentials off the client while handling debouncing, Place Details, CORS restrictions, failure states, and CTA validation.

ReactNext.jsTypeScriptGoogle Places APIAnalytics
Visit live website
02Production acquisition

AT&T offer platform

Delivered internet and wireless experiences across modern React applications and legacy PHP properties, including quote flows, promotional variants, tracking, session safeguards, and timed releases.

ReactPHPWordPressExperimentation
03Customer experience

ADT

Improved customer-support layouts, analytics coverage, accessibility labels, and routing while coordinating behavior across legacy PHP and monorepo applications.

Responsive UIAccessibilityTrackingMigration
Visit website
04Data-driven comparison

InternetServiceCompanies.com

Connected provider pricing and affiliate data to responsive comparison experiences, including conditional Starlink flows and production API corrections.

API integrationResponsive UIAffiliate data
Visit live website
05Acquisition reliability

Consumer Cellular

Matched responsive Figma designs, corrected tracking and dynamic phone replacement, and added indexable FAQ coverage to active acquisition experiences.

FigmaTrackingSEOResponsive UI
06Platform modernization

Brightspeed properties

Upgraded WordPress and PHP compatibility across related production properties while preserving lead flows, commercial content, and release behavior.

WordPressPHP 8.4Release engineering

Experience

Centerfield Media

Aug 2022 — Present

Frontend Developer · Los Angeles, CA

AI-Assisted Development & Workflow Automation

  • Use Claude Code and Cursor inside structured engineering workflows, with human review retained for code, releases, and external communication.
  • Contributed reusable Jenkins deployment skills, setup guidance, and review fixes for the team's shared engineering automation repository.
  • Built a verified 30-node GA4 and GTM provisioning workflow coordinating property lookup or creation, data streams, custom dimensions, variables, triggers, tags, workspaces, and user access.

Conversion Optimization & UI Engineering

  • Shipped 248 A/B and multivariate experiments in 2026, with 81 wins contributing an estimated $1.8M+ in gross profit.
  • Built Google Places address autocomplete for AT&T flows through a secured PHP proxy with Place Details, CORS controls, debouncing, validation, and failure handling.
  • Deliver reusable React and TypeScript components inside a shared monorepo, including responsive flows, route variants, tracking, and accessible interaction patterns.
  • Modernize legacy PHP and WordPress properties while preserving attribution, session behavior, commercial content, and release timing.

The Web Corner

Dec 2019 — Aug 2022

Frontend Developer · Los Angeles, CA

  • Built and launched responsive websites and dashboards, improving UI consistency and mobile usability.
  • Delivered end-to-end Shopify builds and client training for efficient post-launch management.
  • Led iterative UI enhancements using wireframes, research, and feedback cycles.

Lynwood City Pathways

Apr 2018 — Dec 2019

Full Stack Developer · Los Angeles, CA

  • Developed dashboards, survey flows, and reusable UI components for city entrepreneurship programs.
  • Built charting features, data tools, and file-upload functionality for reporting and operational efficiency.

Cal State LA

B.S. Business Administration, Finance

Dean's List · Honors

Workflow Automations

Automation with verified ownership

Selected workflows and engineering skills supported by implementation and contribution history. Shared team workflows are excluded unless my contribution can be established.

GA4 + GTM provisioning workflow canvas
GA4 + GTM Provisioning, 30-node workflow n8n canvas
On-Demand
30 nodes

GA4 + GTM Provisioning

GTM Setup workflow detail

A form-driven workflow coordinates GA4 property lookup or creation, data streams, custom dimensions, and GTM workspaces, variables, triggers, tags, and user permissions through authenticated API calls.

Form → GA4 Property → Data Stream → Custom Dims → GTM Tags → Users
Created by me· currently inactive / on-demand
n8nGA4 Admin APIGTM API
Team tooling
Verified contribution

Jenkins Deployment Skills

Reusable skill blueprints and first-time setup guidance that standardize how engineers prepare and run supported Jenkins deployments.

Release context→Validate inputs→Jenkins job→Verify
Outcome· repeatable deployment handoffs
JenkinsGitHubAgent skills
Team tooling
Verified contribution

PR & Deployment Announcements

Engineering skills that collect repository, pull-request, release, and Jira context and turn it into concise Slack-ready handoffs.

PR / release→Collect context→Human approval→Slack
Outcome· consistent team communication
SlackGitHubJira

Contact

Let's
work together

Open to roles where AI, frontend engineering, and product thinking overlap. Based in Los Angeles, open to remote.

Email

alexkiminbox@gmail.com

LinkedIn

linkedin.com/in/kimalex415

GitHub

github.com/kimalex415

Phone

(213) 434-6756