Freelancers in Saquarema
Freelancers in Saquarema
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Romulo Candido
Maricá, Brazil
Startup SaaS & AI Systems Architect | MVP & Mobile Apps
5.0
Rating
11
Followers
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Startup SaaS & AI Systems Architect | MVP & Mobile Apps
2
Jewelry Marketplace App with Real-Time Gold Pricing Developed a production-ready multi-vendor jewelry marketplace (iOS & Android) using React Native and Laravel. Enabled multiple sellers to manage products with Super Admin-controlled onboarding, product approval, commission rules, and role-based access. Implemented a real-time gold pricing engine with configurable pricing rules to protect margins. Built end-to-end e-commerce flows including product browsing, secure checkout, order management, logistics, and post-purchase follow-up. Integrated Brazilian payment methods (PIX, Boleto, Credit Cards), automated emails, and an interactive 3D product viewer. Delivered a scalable admin system to manage sellers, products, orders, pricing, and marketplace performance, suitable for high traffic and investor presentations.
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134
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GPS Tracking and Equipment Management Application for Mining Operations I developed a multi-platform GPS tracking and equipment management application designed to monitor mining machines and field operations in real time. The platform provides operational teams with complete visibility into machine activity, routes traveled, and equipment utilization in different areas of the mining site. Key features include real-time GPS tracking, path logging, operating time monitoring, and idle time detection, allowing managers to analyze equipment productivity. The application also records operator assignments, machine usage logs, and transported material data, ensuring that all field activities are documented and traceable.
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149
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AI Agent Platform with WhatsApp Chatbot for Intelligent Lead Management in CRM: I developed an AI-based platform to automate lead management in CRM, converting unstructured conversations into organized lead data through intelligent AI agents. The system captures, organizes, and updates leads in real time, automatically triggering workflows such as lead qualification and follow-ups. I integrated a WhatsApp chatbot that allows sales teams to create, update, and query lead information using natural language directly in the chat. This reduced the need for manual data entry into the CRM and improved response time for potential customers. The platform was designed with a modular and scalable architecture, allowing for the easy addition of new workflows, data sources, and AI capabilities as the business grows.
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149
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Real Time Financial Management Systems MVP I have successfully architected and deployed scalable FinTech MVPs, building robust systems from the ground up with a focus on performance, security, and long-term scalability. I designed and developed real-time financial management ERP platforms for small and mid-sized businesses, enabling financial statement analysis, budgeting and forecasting, automated reporting, and enterprise-grade security. Using Next.js, Supabase, and PostgreSQL, I implemented high-performance APIs, live dashboards, transaction alerts, and secure multi-tenant architectures with strict data isolation. Additionally, I integrated Stripe and PayPal, implementing split payments and ACH processing to ensure compliant, reliable, and seamless financial transactions across multi-tenant environments.
1
106
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Fabio M S Souza
Iguaba Grande, Brazil
AI Automation Engineer | n8n · Python · AI
New to Contra
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AI Automation Engineer | n8n · Python · AI
0
Intelligent Document Processing (IDP) with AI
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1
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Automated Executive Reporting & AI Insights
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1
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AI-Powered Customer Feedback & Sentiment Analysis
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1
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Automated Lead Capture & CRM Sync
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2
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Rafaela Martins
Saquarema, Brazil
Graphic designer & Illustrator
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Graphic designer & Illustrator
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Medusa's Garden
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5
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Cupbpoax
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7
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Morenitas
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10
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'My Grief Journal'
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3
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