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Antonio Perez

Case Studies & Selected Work

These case studies explain what needed to change, why I chose an approach, and what happened next. They include the tradeoffs and limits of the evidence. Selected work gives a shorter account of other products and client projects.

Architecture Case Studies

Featured case study

Commerce Platform Capability Architecture

How a commerce platform kept its business rules separate from vendor details so providers and channels could change without rebuilding core workflows.

Problem
A revenue-critical commerce ecosystem needed to keep changing channels, providers, integrations, and operating rules without repeatedly rebuilding core workflows.
Evidence
Supported 2.19M+ orders and $158.6M+ in commerce revenue since September 2020, with unified commerce operations across 100+ retail locations.
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MongoDB-to-PostgreSQL Migration

How a platform moved from MongoDB to PostgreSQL while the application stayed available. The case study explains how the team checked data and prepared to reverse the switch.

Problem

A business-critical Node.js platform needed stronger relational integrity without pausing live workflows or coupling the database change to an application rewrite.

Proof

The application remained available through the migration; public scale and financial metrics are intentionally omitted.

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Inbox2Order

Email-to-order automation that prepares order drafts from customer emails. Validation and human review help reduce repeated entry while keeping people in control of updates to business systems.

Problem

Manual email intake was slowing order operations and creating repeated data-entry work.

Proof

Built an email-to-order workflow with validation and human review. Public time-savings metrics are not available.

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Tlaloc Harvest

An early-stage platform for coordinating surplus food redistribution. The work focused on giving participants and partners a shared workflow.

Problem

A new product needed a reliable software foundation for coordinating surplus food redistribution.

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Candid Moments

An event photo-sharing service where guests upload through a QR code without creating an account. Hosts manage private galleries, access, and content review.

Problem

Guests need a near-instant way to contribute event photos and videos while hosts need one private gallery they can control.

Proof

Shipped the workflow from signup and payment to guest uploads and gallery downloads. Commercial validation is still in progress.

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Selected Product and Client Work

Additional shipped products and client engagements where public information supports a concise project record, not a full architecture case study.

FeelsReel

AI story book generator that creates personalized children's stories and turns them into videos using OpenAI (GPT-4) and RunwayAI.

Problem

A media-heavy AI product needed to coordinate prompt, story, and video generation workflows.

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Schuil Ag Real Estate

Schuil Ag Real Estate wanted a way to generate brochures for their properties automatically using WordPress and a custom plugin.

Problem

Property brochure creation was a repeated manual workflow tied to changing listing data.

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Mid India

Non-profit organization website providing child sponsorship and clean water initiatives. Provided WooCommerce support, reporting data solutions, and website improvements.

Problem

The organization needed clearer reporting, e-commerce support, and ongoing website improvements.

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Lighthouse Medical Transport

Website for a non-emergency medical transportation service.

Problem

A local transportation business needed a website for prospective customers.

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Sigma Solutions

Groundwater Management web app built to simplify SGMA compliance for California water agencies with interactive mapping and data management tools.

Problem

California water agencies needed groundwater data, maps, and compliance workflows in one place.

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