Freelancers using Tailwind CSS in São PauloFreelancers using Tailwind CSS in São Paulo
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Cristian Anterio's avatar
Cristian Anterio
São Paulo, Brazil
Skilled Software Engineer ready to build you next web app
5.0
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25
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Skilled Software Engineer ready to build you next web app
Cover image for I recently built a landing page for a law firm — but it’s no...
I recently built a landing page for a law firm — but it’s not just a landing page. It’s a way to connect real people with real legal solutions 🤝 . Every section was designed to build trust, highlight expertise, and guide visitors toward what truly matters: solving their problems. Because in the end, great design isn’t only about looks — it’s about creating meaningful connections between professionals and the clients who need them most. If you’re ready to turn your services into something people can feel and trust, let’s talk.
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Cover image for tracking my finances 😆 has anyone else already built someth...
tracking my finances 😆 has anyone else already built something like this?
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Cover image for working on a IA CV trial :]
working on a IA CV trial :]
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Cover image for WIP: As a musician and developer, I noticed how hard it can ...
WIP: As a musician and developer, I noticed how hard it can be for bands and churches to stay organized — endless WhatsApp messages, spreadsheets, and confusion about who’s playing where. So I built a web app that automates musician scheduling, making team coordination simple, fast, and reliable. Using Angular, .NET, Supabase, and Lovable, I designed a clean interface where users can: ✅ Create recurring events and assign musicians easily ✅ Automate reminders and updates ✅ Manage everything through an intuitive calendar view This project blends my passion for music and software development, showing how real problems can be solved through thoughtful, scalable engineering. If you have an idea that needs to become a real product, I can help you build it — fast, reliable, and ready to grow. 🚀
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Tailwind CSS(4)
Heber Conrado's avatar
Heber Conrado
São Paulo, Brazil
n8n Automation & AI Workflows for Growing Businesses
New to Contra
n8n Automation & AI Workflows for Growing Businesses
Cover image for Kinetic Dashboard — SaaS Front-End
Kinetic Dashboard — SaaS Front-End Experience Kinetic Dashboard is a high-performance front-end built for modern SaaS applications, focused on usability, scalability, and real-time data-driven decision making. This project was developed using solid engineering and product design principles, delivering a smooth, intuitive, and highly responsive user experience. 🔹 Key Features & Strengths 1. Modern data-driven UI/UX Clean and professional interface with clear visual hierarchy, making it easy to analyze critical metrics such as performance, workflows, and operational insights. 2. Scalable architecture (SaaS-ready) Built to scale, enabling seamless integration with multiple services, APIs, and environments (multi-region and multi-tenant ready). 3. Optimized performance Fast rendering, reusable components, and efficient state management ensure smooth performance even with large data volumes. 4. Consistent Design System Standardized visual patterns (colors, typography, spacing, components) for easier maintenance and long-term product evolution. 5. Executive dashboard focus Strategic data visualization with clear KPIs, trend indicators (↑ ↓), and quick insights for decision-making. 6. User-centered experience Intuitive navigation with a structured sidebar, visual feedback (status, alerts, progress), and quick actions like report export. 7. Compliance-ready (GDPR & UX best practices) Includes essential components such as cookie consent and privacy-focused UX for global applications. 8. Modular and reusable components Well-structured component system that simplifies maintenance, testing, and scalability. 💡 Technologies & Best Practices Component-based architecture API integrations Fully responsive design Clean Code principles Accessibility and readability focus 🚀 Outcome A robust, elegant, and production-ready SaaS dashboard, ideal for companies that need to monitor operations, workflows, and performance in real time with clarity and efficiency. If you're looking for a professional SaaS front-end focused on performance, scalability, and user experience, Kinetic Dashboard represents the level of quality I deliver. Link - kinetic-dashboard-hmdphc48w-heberconrado-4074s-projects.vercel.app (https://kinetic-dashboard-hmdphc48w-heberconrado-4074s-projects.vercel.app)
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Cover image for N8N WhatsApp Financial Bot —
N8N WhatsApp Financial Bot — Portfolio Explanation Overview This workflow is a WhatsApp-based personal finance bot built in N8N. Users interact with it by sending text commands directly via WhatsApp, and the bot responds with debt tracking, income recording, and financial reports — all stored in a PostgreSQL database. Integrations Used IntegrationPurposeEvolution API + WhatsAppReceives and sends WhatsApp messagesPostgreSQLStores debts, income records, and financial dataN8N Code NodesParses commands and formats responsesWebhookEntry point for incoming messages Flow Breakdown 0. Setup — Create Tables Criar tabelas (executar 1x) A one-time PostgreSQL node that creates the necessary database tables before the flow goes live. Run once during setup. Webhook (Entry Point) Webhook Configured with the Evolution API to receive all incoming WhatsApp messages via HTTP POST. Setup requires pointing the Evolution instance's Webhook URL to this node and subscribing to the messages.upsert event. Extract Message Extrair mensagem A Code node reads the Evolution API's JSON payload and extracts: The message text (lowercased) The sender's phone number The sender's name from WhatsApp Security Filter — My Number Only Filtro — só meu número A security gate that only allows messages from the owner's own number to proceed. Any message from an unknown number is silently ignored and a 200 OK is returned to avoid retries. Switch — Command Detection Switch — comando Routes the flow based on the command detected in the message: CommandActionmenuShows the options menudividaDebt registration flowrecebiIncome registration flowrelatorioFinancial report flow(anything else)Fallback / ignored Menu Menu Montar Generates and sends a formatted options menu to the user via WhatsApp, listing all available commands with usage examples. Parse Debt Command Parsear dívida Extracts structured data from the /divida command. Expected format: /divida [name] [value] Parse Income Command Parsear receber Extracts structured data from the /recebi command. Expected format: /recebi [name] [value] 8 & 9. Save to PostgreSQL Salvar dívida / Salvar receber Inserts the parsed debt or income record into the PostgreSQL dividas table, using the configured financial database credentials (host, port, database, user, password). Fetch Report Buscar relatório Runs a PostgreSQL query that returns a financial summary including: Total debts per person Total income received per month Breakdown by fortnight (installment periods) 11a/b/c. Format Messages Formatar mensagens / Confirmar dívida / Confirmar receber / Formatar relatório Three formatting nodes — one per command path — that shape the response into WhatsApp-friendly Markdown (bold, line breaks, currency formatting like R$ 1.000,00). Send WhatsApp Response Enviar WhatsApp Sends the formatted reply back to the user via the Evolution API HTTP endpoint: POST http://{SEU_HOST}/message/sendText/{INSTANCE} with the API key in the request header. Respond to Webhook Responder ao Webhook Returns an HTTP 200 response to the Evolution API to confirm the message was successfully processed and prevent retry loops. Available Commands (User-Facing) CommandDescription/menuShows all available commands/divida [name] [value]Registers a debt owed to you/recebi [name] [value]Logs a payment received/relatorioGenerates a full financial summary report Key Features ✅ WhatsApp-native interface — no app needed, just chat commands ✅ Owner-only security filter — private and protected by default ✅ Multi-command routing — clean switch logic for each feature ✅ PostgreSQL persistence — all financial data stored reliably ✅ Formatted reports — human-readable summaries with WhatsApp Markdown ✅ Webhook handshake — proper HTTP 200 handling to prevent duplicate triggers ✅ Zero UI required — fully operated through natural WhatsApp messages
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Cover image for N8N HR Document Automation Flow
N8N HR Document Automation Flow — Portfolio Explanation Overview This workflow automates the process of onboarding new employee files into an organized Google Drive structure. Whenever a new file is uploaded to Drive, the system automatically identifies the employee, validates them against a roster, notifies them by email, and logs everything — all without any manual intervention. Integrations Used IntegrationPurposeGoogle DriveDetects new files and moves them to the correct folderGoogle SheetsStores the employee registry for lookupGmailSends notifications and admin alertsN8N Code NodeExtracts and parses data from the file Flow Breakdown 1. Trigger — New File on Drive Novo Arquivo no Drive The flow is triggered automatically whenever a new file is created in a monitored Google Drive folder. This is the entry point — no manual action needed. 2. Extract Name & Data from File Extrair Nome e Dados do Arquivo A Code node parses the uploaded file to extract key information — primarily the employee's name and any relevant metadata embedded in the file name or content. 3. Search Employee in Spreadsheet Buscar Funcionário na Planilha Using the extracted name, the flow queries a Google Sheets spreadsheet (the employee registry) to check whether this person exists in the system. 4. Employee Found? (Conditional Branch) Funcionário Encontrado? A Switch/Router node evaluates the lookup result and splits the flow into two paths: ✅ Path A — Employee Found (True) StepActionMove to Employee FolderThe file is moved to that employee's dedicated Google Drive folderNotify Employee by EmailA Gmail message is sent to the employee confirming the file was receivedSuccess LogA record is written to a Google Sheets log (append/update) ❌ Path B — Employee Not Found (False) StepActionError LogThe failed attempt is recorded in a separate Google Sheets error logAlert Admin by EmailGmail sends an alert to the administrator reporting the unrecognized file Key Features ✅ Fully automated — triggered by file upload, zero manual steps ✅ Smart file routing — files land in the right employee folder automatically ✅ Validation layer — cross-references a live employee spreadsheet before acting ✅ Dual-path error handling — failures are logged and the admin is immediately notified ✅ Audit trail — both successes and errors are recorded in Google Sheets ✅ Email notifications — employees and admins are kept in the loop automatically
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Cover image for N8N WhatsApp AI Agent Flow
N8N WhatsApp AI Agent Flow — Portfolio Explanation Here's a clear breakdown of your automation workflow for your portfolio:
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Tailwind CSS(1)
Caio Cerano's avatar
Caio Cerano
São Paulo, Brazil
Crafting intuitive and engaging websites
Crafting intuitive and engaging websites
Cover image for Portfolio Website
Portfolio Website
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Cover image for REsight
REsight
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Cover image for Futuro Absoluto
Futuro Absoluto
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Satil Pereira's avatar
Satil Pereira
São Paulo, Brazil
Web developer, do responsive, acessible & modern websitetes
Web developer, do responsive, acessible & modern websitetes
Cover image for Personal portfolio
Personal portfolio
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Cover image for Pato a Jato
Pato a Jato
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Aurhi
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Lucas Ferreira's avatar
Lucas Ferreira
São Paulo, Brazil
Frontend Developer | Clean, responsive & optimized sites
Frontend Developer | Clean, responsive & optimized sites
Cover image for Barber Zap
Barber Zap
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5
Cover image for Pizzaria Lá terraço
Pizzaria Lá terraço
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5
Cover image for Pizza Menu Listing
Pizza Menu Listing
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Mateus Avila Isidoro's avatar
Mateus Avila Isidoro
São Paulo, Brazil
Senior frontend developer | vue | nuxt | Wordpress
Senior frontend developer | vue | nuxt | Wordpress
Cover image for Tá em dia Saas platform
Tá em dia Saas platform
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Cover image for Hitachi Austin Data Logics
Hitachi Austin Data Logics
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Cover image for LCbank – Precatório | RPV
LCbank – Precatório | RPV
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