Freelance Web Developers in Nuevo LeonFreelance Web Developers in Nuevo Leon
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Héctor R. Sepúlveda A.'s avatar
Héctor R. Sepúlveda A.
Monterrey, Mexico
AI-assisted spreadsheet automation and business dashboards
New to Contra
AI-assisted spreadsheet automation and business dashboards
Cover image for Interactive Service Quote Calculator
Interactive Service Quote Calculator
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Cover image for PDF Text to Excel — A Checkable Sample
PDF Text to Excel — A Checkable Sample
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1
Cover image for Weekly CSV Consolidation with Validation
Weekly CSV Consolidation with Validation
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1
Cover image for CSV Cleanup with a Traceable Change Log
CSV Cleanup with a Traceable Change Log
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1
Web Developer(1)
Gerardo González Garza's avatar
Gerardo González Garza
San Pedro Garza García, Mexico
Web and systems developer with a passion in UI/UX
Web and systems developer with a passion in UI/UX
Cover image for AI agents are great until
AI agents are great until something goes wrong and a real person needs to step in. Most businesses running chatbots have no clean way to monitor what their agents are doing across channels, let alone jump into a conversation. A client reached out to me in need of a full stack platform that solves both of those problems. It gives them a dashboard to monitor all their agent chats across channels in one place, with a real-time takeover feature that lets humans step in and respond to escalated tickets without breaking the flow. The integration was built from scratch to make the handoff between AI and human as seamless as possible. Built with Next.js, Node.js, WebSockets, and more, this was one of the more technically interesting projects I have worked on, and one that genuinely changes how a team manages their AI operations.
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Cover image for Car dealerships deal with vehicle
Car dealerships deal with vehicle catalogs from dozens of providers, each with their own PDF format, layout, and structure. Manually extracting specs, pricing, and discounts from those documents is tedious and error-prone. A car dealership reached out to me to help fix this specific issue. It ingests PDFs regardless of format, uses AI extraction to pull out full vehicle data, and loads everything into clean structured tables. The team can then review, edit, add missing entries, and export to Excel in a few clicks. Every file keeps a full extraction detail view so nothing gets lost or misattributed. Built with Next.js, OpenAI, and AWS. Genuinely one of those projects where you can feel the immediate impact the moment it goes live.
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Cover image for Very exciting project done for
Very exciting project done for an insurance company in Canada. This project involved design and full-stack development, as well as an AI workflow to generate recommendations for insurance leads based on a Health Questionnaire, AI match making and profile analysis, automatic lead messaging, etc. A truly fun and remarkable experience, with big potential of impacting insurance processes worldwide. Very thankful for the opportunity, excited for may come next!
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Cover image for Publícate is an outdoor advertising
Publícate is an outdoor advertising marketplace platform built to connect advertisers with outdoor ad spaces at scale. As a co-founder and core developer, I was involved from the ground up, handling everything from the design system and frontend implementation to database architecture, optimization, and third party integrations. The platform was designed to handle a significant volume of listings, transactions, and analytics across a market that is still largely offline, which made the technical decisions matter a lot. Built with Next.js, Node.js, and PostgreSQL, with data analytics and several integrations woven in throughout. The kind of project that challenges you at every layer, in the best way.
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Web Developer(1)
Gustavo Reyes's avatar
Gustavo Reyes
Monterrey, Mexico
Experienced CTO building real-life products
1x
Hired
2
Followers
Experienced CTO building real-life products
Cover image for E-commerce Web Developer for High-Traffic Security Seal Website
E-commerce Web Developer for High-Traffic Security Seal Website
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Cover image for CTO @ Tonder
CTO @ Tonder
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Cover image for Python Lead for World Market Cost Plus Loyalty Program
Python Lead for World Market Cost Plus Loyalty Program
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Web Developer(3)
Omar Reyna's avatar
Omar Reyna
Monterrey, Mexico
Web Designer ❖
Web Designer ❖
Cover image for Folio 23
Folio 23
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Cover image for Jimena
Jimena
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22
Cover image for NDO Healthy Spot
NDO Healthy Spot
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23
Cover image for Mano Alba
Mano Alba
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6
Web Developer(2)
Sonia Piñeyro 's avatar
Sonia Piñeyro
Monterrey, Mexico
Inspiring Brands with Meaningful Design through photography
Inspiring Brands with Meaningful Design through photography
Cover image for Sonia Pineyro - Findancy
Sonia Pineyro - Findancy
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Cover image for Sonia Pineyro - Alter
Sonia Pineyro - Alter
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5
Cover image for Camo Body Essentials
Camo Body Essentials
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10
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Web Developer(1)
daniela rodriguez's avatar
daniela rodriguez
Monterrey, Mexico
Web Designer & Developer for businesses and entrepreneurs.
Web Designer & Developer for businesses and entrepreneurs.
Cover image for online shop
online shop
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Cover image for online makeup shop
online makeup shop
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1
Cover image for Modern Real Estate Website Design
Modern Real Estate Website Design
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3
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Web Developer(1)