Senior full stack developer building products people use.

Nine years of PHP, Laravel, mobile, and AI engineering. Currently leading development on a live iOS and Android health app with 120K+ installs, including AI features built on the OpenAI API.

120K+ installs · iOS & Android Based in Chicago, USA
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About

A pragmatic engineer who likes shipping things.

I'm Alex Goldberg, a senior full stack developer with nine years of experience building production PHP/Laravel backends, REST APIs, and hybrid mobile applications.

I currently lead development on Selin.app, a women's health app on iOS and Android with 120K+ installs. I joined the project early-stage and now own architecture across backend, mobile, and AI features as the lead developer on a team of seven.

Before Selin, I worked across post-production tooling, e-commerce, and global enterprise platforms — including a contract building KFC's international marketing asset platform used in 15+ countries.

I'm comfortable taking products from early build to launch and beyond — backend, mobile, integrations, App Store releases, and the production support nobody else wants to do.

Stack

Tools I use daily.

Backend

PHP 8, Laravel, Symfony, REST APIs, PHPUnit

Mobile

Ionic (iOS & Android), Kotlin, App Store & Google Play

AI / LLM

OpenAI API (GPT-4 / GPT-4o), prompt engineering, AI feature integration

Databases

MySQL, PostgreSQL

Frontend

JavaScript, TypeScript, Angular, HTML, CSS

Infrastructure

AWS, Linux, Nginx, Git, CI/CD

CMS / E-commerce

WordPress, WooCommerce, Magento, OpenCart

Integrations

Apple/Google IAP, Stripe, PayPal, Firebase, AdMob

Featured project

Selin — a live health product.

Live in production
iOS · Android · Laravel · OpenAI

Selin.app

A women's health app for cycle tracking and ovulation prediction, with AI-powered personalized insights and chat-based symptom guidance. I joined early-stage and lead development across backend, mobile, and AI features.

120K+ Installs
7+ Team led
20+ Releases
Visit selin.app
Screenshot of the Selin app's Today screen showing cycle overview and insights
Experience

Nine years, five companies, one trajectory.

2024 — Present Senior Full Stack Developer (Lead)

Selin.app

Mobile health app · iOS & Android · 120K+ installs
  • Joined early-stage and led development from initial build through 120K+ installs across iOS and Android.
  • Lead developer on a team of 7+, owning architecture and delivery across backend, mobile, and AI features.
  • Designed and shipped the paid subscription model that monetizes the app — Apple/Google IAP, entitlements, renewal logic.
  • Built the AI feature set on the OpenAI API: daily personalized cycle insights and chat-based symptom guidance.
  • Built and scaled Laravel REST APIs powering the full mobile user base; shipped 20+ App Store and Google Play releases.
2023 — 2024 PHP / Web Developer

Astrograph Software Inc.

Astrology web & mobile products
  • Modernized legacy PHP backend, improving stability and reducing recurring production issues.
  • Built REST API endpoints consumed by iOS and Android apps.
  • Designed, built, and launched a new WordPress marketing site.
  • Refactored core modules for performance and maintainability.
2021 — 2023 PHP / Laravel Developer

Frame One

Remote post-production platform for video teams
  • Built and maintained Laravel backend services and APIs powering a platform used by 800–1,000 internal users.
  • Developed admin dashboards and operational tooling for post-production workflows.
  • Implemented authentication and data sync integrations across internal services.
  • Improved performance and stability of legacy services through targeted refactoring.
2019 — 2021 WordPress Developer

Vizual Technologies, Inc.

Agency work — multiple industries
  • Built and maintained 10–25 WordPress sites and WooCommerce stores for clients across multiple industries.
  • Developed custom themes and plugins to extend WordPress beyond off-the-shelf functionality.
  • Integrated Stripe and PayPal payment flows for e-commerce clients.
  • Optimized site performance, SEO, and Core Web Vitals.
2017 — 2019 PHP Developer (Contract)

KFC International

Global marketing asset platform
  • Built a web-based file management platform used by KFC marketing teams in 15+ countries.
  • Developed a PHP backend handling large volumes of marketing assets — upload, organization, and access control.
  • Implemented role-based user access and content management for marketing workflows.
Contact

Have a project in mind? Let's talk.

I take on remote, full-time and contract roles building backends, mobile apps, and AI-powered product features. If that sounds like a fit, send me a note — I usually reply within 24 hours.

alex@alexgoldberg.online +1 (312) 957-8476

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Thanks for reaching out — your message just landed in my inbox. I'll reply within 24 hours, usually sooner.

In the meantime → check out selin.app