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sebaarg88

Sebastian L

@sebaarg88

Freelance Web Developer and Founder

Argentina
English, Spanish
About me
I build custom web tools for small businesses: CRMs, dashboards, landing pages and apps that replace spreadsheets. Real projects in use: a loan management CRM, finance apps sold on Etsy, and a landing page with interactive calculators for an HR firm. Fast, mobile-first, no monthly fees — you own the code. Clear communication in English and Spanish, delivery in stages so you can give feedback early.... Read more

Skills

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sebaarg88
Sebastian L
Offline • 

See my services

CRM & ERP Development
I will build a custom CRM web app for your small business
From$400 / projectMore details
Custom Websites
I will build a fast, mobile first landing page that converts
From$150 / projectMore details

Portfolio

Work experience

Self_employed / Freelance

Freelance Web Developer & Founder

Self employed / Freelance • Self-employed

Oct 2025 - Present • 1 yr

Founder of Seba Data. I design and build web tools for small businesses and individuals: • Custom CRM for a lending business: clients, loans, collections agenda, payments and automatic risk scoring (in daily use). • Landing page for an HR consulting firm with services, pricing and interactive salary calculators. • A catalog of 20+ offline web apps (budget, debt payoff, habit and fitness trackers) sold on Etsy, installable on phones. Stack: JavaScript, HTML/CSS, Python, Excel, PWA.