Robert N. Gutierrez

@HarmonDavid

Learn, Write, and Grow as a Developer

USAJoined February 2026

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Robert N. Gutierrez's blogs

Code Journaldevcodejournal.hashnode.dev9 posts

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RNRobert N. Gutierrezdevcodejournal.hashnode.devApr 4 · 5 min read

Production-Grade Zappos Scraping: Implementing Schema Validation and Error Recovery

Building a web scraper that works on your local machine is a start, but building a data pipeline that survives a production environment is a different challenge. E-commerce giants like Zappos frequent

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RNRobert N. Gutierrezdevcodejournal.hashnode.devMar 18 · 5 min read

Share of Search: Auditing Product Visibility Without an Analyst

The search bar is the highest intent touchpoint on any e-commerce site. When a customer types "running shoes" into Nike.in, they aren't just browsing; they are signaling a specific readiness to buy. F

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RNRobert N. Gutierrezdevcodejournal.hashnode.devMar 4 · 6 min read

Chaining AI Parsers: Building a Full Category Crawler for Nike

Most web scraping tutorials follow a predictable path: they show you how to extract data from a single product page and call it a day. While that's a great starting point, real-world data engineering

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RNRobert N. Gutierrezdevcodejournal.hashnode.devMar 1 · 5 min read

Track Brand Visibility: Building a Competitor Monitoring Tool for Wayfair Search Results

In e-commerce, the "Digital Shelf" is the primary battleground for revenue. For brands selling on Wayfair, appearing on the first page of search results is the most significant driver of sales. This i

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RNRobert N. Gutierrezdevcodejournal.hashnode.devFeb 27 · 6 min read

Anatomy of a Production-Ready Scraper: Dissecting the Ulta.com Repository

Most web scraping tutorials follow a predictable path: they show you how to fetch a single page, parse one HTML element, and print it to the console. While this works for a "Hello World" example, it f

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Robert N. Gutierrez

About

Available for

Robert N. Gutierrez's blogs

Recently published

Production-Grade Zappos Scraping: Implementing Schema Validation and Error Recovery

Share of Search: Auditing Product Visibility Without an Analyst

Chaining AI Parsers: Building a Full Category Crawler for Nike

Track Brand Visibility: Building a Competitor Monitoring Tool for Wayfair Search Results

Anatomy of a Production-Ready Scraper: Dissecting the Ulta.com Repository

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Robert N. Gutierrez

About

Available for

Robert N. Gutierrez's blogs

Recently published

Production-Grade Zappos Scraping: Implementing Schema Validation and Error Recovery

Share of Search: Auditing Product Visibility Without an Analyst

Chaining AI Parsers: Building a Full Category Crawler for Nike

Track Brand Visibility: Building a Competitor Monitoring Tool for Wayfair Search Results

Anatomy of a Production-Ready Scraper: Dissecting the Ulta.com Repository