Freelance Frontend Engineers in AntioquiaFreelance Frontend Engineers in Antioquia
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aldama agencia's avatar
aldama agencia
Medellín, Colombia
Aplicaciones 10X mas rapido con herramientas NoCode
1x
Hired
1
Followers
Aplicaciones 10X mas rapido con herramientas NoCode
Cover image for MAM 360
MAM 360
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7
Cover image for Digital Transformation for Modelo GeO
Digital Transformation for Modelo GeO
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3
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weweb-front
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5
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Frontend Engineer(3)
David De Vargas's avatar
David De Vargas
Medellín, Colombia
Expert in Accessible, Maintainable Web Solutions
Expert in Accessible, Maintainable Web Solutions
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Testing First Principle for local e-commerce
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31
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Accessibility Show case
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50
Cover image for Upgrading to Nuxt 3: Strategies for Micro-Frontend Architecture…
Upgrading to Nuxt 3: Strategies for Micro-Frontend Architecture…
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208
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Frontend Engineer(3)
Jorge Rondon's avatar
Jorge Rondon
Medellín, Colombia
Crafting Web Excellence Through Code
Crafting Web Excellence Through Code
Cover image for Indentura TradFi/DeFi
Indentura TradFi/DeFi
0
8
Cover image for My web Portfolio
My web Portfolio
2
20
Cover image for Cartagena Music Festival 2021
Cartagena Music Festival 2021
1
17
Cover image for Awsome Rides Gallery
Awsome Rides Gallery
1
6
Frontend Engineer(4)
Alber de Jesus Barros Miranda's avatar
Alber de Jesus Barros Miranda
Medellín, Colombia
Passionate Fullstack Engineer, 10+ yrs exp.
Passionate Fullstack Engineer, 10+ yrs exp.
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Senior Frontend Developer
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7
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Senior Full Stack Developer
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2
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Maintenance Engineer TIC Products
0
5
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Frontend Engineer(3)
Camilo Cano (Slash)'s avatar
Camilo Cano (Slash)
Sabaneta, Colombia
Senior Full-Stack Architect & SaaS Founder
New to Contra
Senior Full-Stack Architect & SaaS Founder
Cover image for InverSync PRO — Full-Stack Fintech
InverSync PRO — Full-Stack Fintech SaaS & Distributed Investment Engine Architected and built an end-to-end private capital investment, real estate portfolio, and partner asset management platform with edge data distribution. Key Architecture & Engineering Highlights: • Modern Frontend: React 18 SPA built with Vite 5, Tailwind CSS, Context API for multi-role session management, and custom fintech UI components. • Scalable Backend: Node.js (v20 LTS) RESTful API with Express.js, JWT/Bcrypt authentication, and granular Role-Based Access Control (SuperAdmin, Admin, Partner). • Edge Database Architecture: Turso (libSQL) distributed database utilizing Embedded Replicas for microsecond local read latency and bidirectional cloud sync. • Financial Logic: Custom Waterfall profit distribution algorithms, partner equity parity rebalancing, and debt amortization sub-ledger with interest capitalization. • Multi-Currency & Compliance: Native support for 15+ currencies (USD, COP, EUR), bank receipt processing, and immutable audit logs. • Deployment: Automated CI/CD pipeline on Render connected to GitHub. Live Staging URL: https://inversync.onrender.com Stack: React • Node.js • Express • Turso / libSQL • Tailwind CSS • Vite • REST APIs • Edge SQL
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49
Cover image for 🚀 RestoBarApp — Cloud POS
🚀 RestoBarApp — Cloud POS & Multi-Tenant Hospitality Management SaaS Architected and deployed a full production B2B SaaS platform for restaurants, bars, and hospitality businesses with active daily operations and paying subscribers. Key Engineering & Product Highlights: • Integrated AI Operations Assistant: In-app conversational assistant powered by Google Gemini API, allowing restaurant managers to query sales velocity, stock anomalies, and daily operational metrics in real-time. • Granular Inventory Engine: Real-time ingredient tracking down to the gram/milliliter linked directly to recipe consumption upon checkout. • Real-Time Kitchen Sync: Bi-directional WebSocket events keeping order queues synchronized across multiple kitchen stations with zero page reloads. • Multi-Branch & Multi-Tenant: Robust tenant data isolation, custom role-based permissions (Cashier, Waiter, Kitchen, Admin), and multi-location management. • Automated Invoicing & Thermal Printing: Seamless thermal POS receipt generation and automated billing lifecycle management. 🛠 Tech Stack: Node.js • Express • MongoDB • Real-time WebSockets • Google Gemini API • TailwindCSS • Google Cloud Platform (GCP) 🔗 Live Platform: https://app.restobarapp.com
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Cover image for RxApp — Enterprise ERP, AI
RxApp — Enterprise ERP, AI Operations & Client Lifecycle Management Platform Architected and engineered a comprehensive, custom ERP/CRM and business operations suite designed to centralize client management, sales pipelines, recurring service catalogs, project delivery phases, and AI-driven proposal generation. Core Architecture & Technical Highlights: • Modern Frontend: React 19 SPA built with TypeScript, React Router v7, TanStack Query v5 for server-state caching/optimistic UI, and Tailwind CSS v4 design system tokens. • Modular Backend API: Node.js and Express.js layered architecture with Mongoose (MongoDB), Helmet security headers, JWT stateless authentication, and express-validator sanitization. • Google Gemini AI Integration: Powered by @google/generative-ai with an intelligent dynamic model fallback chain (Gemini Flash series), dynamic runtime API key hot-swapping, and Xtreme-AI role-filtered knowledge base chat. • 3-Stage AI Proposal & Scoping Engine: Interactive requirements extraction, technical dimensioning, commercial quotes with multi-installment terms, and automated technical runbook generation. • Granular RBAC: Strict 5-tier Role-Based Access Control (SuperAdmin, Executive, Dev Director, Commercial, Financial). • Sales & Billing Pipeline: Multi-currency invoice tracking, payment receipt processing (Multer), and phase-based project scheduling. Stack: React 19 • TypeScript • Node.js • Express • MongoDB • Google Gemini API • TanStack Query • Tailwind CSS v4
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Cover image for MedSched Pro — Full-Stack HealthTech
MedSched Pro — Full-Stack HealthTech SaaS & Clinical Practice Management Platform Architected and engineered a modular, high-performance practice management and appointment scheduling SaaS designed for medical clinics, dental practices, and veterinary centers. Core Architecture & Technical Highlights: • Modern Frontend: React 18 SPA built with Vite 6, Tailwind CSS v3 clinical design system, React Portals for isolated print/PDF DOM roots, and Lucide React. • High-Performance Backend: Node.js 22 LTS leveraging the native Node HTTP server architecture for zero-dependency overhead, dynamic route dispatching, and streaming JSON serialization. • Embedded Zero-Latency Database: Powered by SQLite 3 via native node:sqlite (DatabaseSync) with 12 relational models, ACID transactions, and automated integrity enforcement. • Patient Booking Funnel: Intuitive 4-stage patient reservation portal with dynamic doctor slot generation, real-time availability, and double-booking prevention. • Clinical EHR & Bioethics: Electronic health records timeline, prescription management, radiographic image viewer with optical zoom/rotation, and HTML5 Canvas e-signature with legal audit hashing. • Financial & Cash Register Engine: Double-entry clinical accounting tracking consultation collections, multi-account settlement, expense categorization, and cash drawers. • Global i18n Engine: Enterprise-grade internationalization supporting 4 languages (English, Spanish, Portuguese, French) with 1,924 localized string keys per locale. Stack: React 18 • Node.js 22 • Vite 6 • SQLite 3 (node:sqlite) • Tailwind CSS • HealthTech • REST APIs • i18n
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Frontend Engineer(1)
Ray Guio's avatar
Ray Guio
Medellín, Colombia
Expert in creating sleek, user-friendly booking websites.
Expert in creating sleek, user-friendly booking websites.
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Grupo Ruico Pet Products
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5
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Salitrex
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4
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Nativos Real Guatape
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6
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Frontend Engineer(3)