Hire the Best Automation Engineers
in Vietnam

I design and build AI-powered automation systems n8n workflows, LLM agents, and custom Python automation that eliminate repetitive work and connect your business data directly into the tools you already use. Backed by 5+ years of Python engineering and a 100% Job Success Score across 30+ delivered projects. ✅ What I Do Best ⚡ AI & n8n Automation (core expertise) - Building AI automation workflows with n8n, OpenAI, and Claude APIs - AI agents for lead capture, CRM sync (GoHighLevel and similar), and customer support - AI-powered document processing, classification, and summarization - Debugging and fixing existing n8n workflows payload mapping, webhook, and API errors - Automation combined with Make, Zapier, and custom webhooks - RAG pipelines, LangGraph, CrewAI for multi-agent systems 🕸️ Web Scraping & Data Extraction (feeding automation pipelines) - Python: Playwright, Scrapy, Selenium, SeleniumBase, Crawl4AI, BeautifulSoup, Scrapling - Scraping dynamic, JavaScript-heavy, login-protected, and anti-bot websites (Cloudflare bypass, CAPTCHA handling) - Delivered: Glassdoor company data (Cloudflare bypass), Capterra reviews, social media data extraction (400+ hours) 🤖 Automation, Bots & Browser Extensions - Custom Python bots for monitoring, notifications, reporting - Chrome Extensions, Telegram/Discord bots, webhook integrations - Excel, Google Sheets, Airtable, CRM automation 🔗 APIs & Backend - REST API & GraphQL integrations, FastAPI, Flask, Django - Connecting SaaS platforms, CRMs, databases, and third-party services ☁️ Cloud & Deployment - AWS EC2, Docker, Linux servers, GitHub Actions - PostgreSQL, MySQL, MongoDB ✅ Why Clients Hire Me - Hands-on experience designing production AI automation workflows (n8n, LangGraph, CrewAI, RAG) as a working AI Automation Engineer - 5+ years Python engineering background, 100+ scrapers/bots/automation systems delivered - 100% Job Success, Top Rated, fast 0-4h response time - Clean, documented, production-ready code with honest scoping I'll tell you if automation isn't the right fit before we start If you have a repetitive process, messy data pipeline, or need an AI agent/chatbot built into your business, message me happy to review your workflow and turn it into a production-ready automation system.

👋 Hi, I'm Ha Long from Vietnam - a Senior Full Stack Developer with over 7+ years of experience building scalable, high-performance web applications and SaaS platforms. I specialize in React.js, Next.js, Node.js, and Python, with a strong focus on AI integration, automation, and cloud-based SaaS development. Since 2017, I've been helping startups and enterprises turn complex ideas into fast, reliable, and beautifully designed digital products. ☑ 𝐂𝐨𝐫𝐞 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 🔸𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 React.js, Next.js, Vue.js, Angular, TypeScript, TailwindCSS, Redux, Zustand, GraphQL, Apollo, MUI, Ant Design, Remix, SSR/SSG 🔸𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Node.js, Express.js, NestJS, Python (FastAPI, Django, Flask), Firebase, PostgreSQL, MySQL, MongoDB, Redis, TypeORM, Hasura 🔸𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 ChatGPT, LangChain, OpenAI API, Anthropic Claude, GPT Automation, Workflow Orchestration, RPA Tools (n8n, Zapier), Data Pipelines, Selenium & Playwright Automation 🔸𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 AWS (Amplify, EC2, ECS, Lambda), Google Cloud, Vercel, DigitalOcean, Docker, Kubernetes, CI/CD pipelines, Serverless Functions 🔸𝐇𝐞𝐚𝐝𝐥𝐞𝐬𝐬 𝐂𝐌𝐒 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 Strapi, Sanity, Contentful, Medusa.js, Payment Gateways, CRM/ERP Systems, WebSockets, Authentication (JWT, OAuth2) ☑ 𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐯𝐢𝐭𝐲 𝐒𝐭𝐚𝐜𝐤 I integrate advanced AI tools and environments into my workflow - including Cursor, Windsurf, Trae, v0.dev, Same.dev, Lovable.app, Replit, GitHub Copilot, Tabnine, AutoDev, and Devin AI - ensuring faster development cycles and cleaner, more efficient codebases. ☑ 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫 🔸 Custom SaaS Applications – Multi-tenant platforms with subscriptions, billing, and analytics 🔸 Modern Web Apps – SEO-optimized, responsive frontends built with React/Next.js/Vue 🔸 Robust APIs – REST & GraphQL APIs with secure authentication and fast response times 🔸 AI-Driven Systems – Chatbots, automation workflows, and smart assistants using GPT & LangChain 🔸 Data Dashboards – Real-time visualizations, reporting tools, and admin consoles 🔸 Full-Cycle Ownership – From wireframes to cloud deployment, I handle it all ☑ 𝐒𝐚𝐦𝐩𝐥𝐞 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐭𝐨𝐫𝐢𝐞𝐬 🔸Built a SaaS automation platform with React + Node.js, now serving 15K+ active users 🔸Developed an AI-integrated CRM dashboard using Next.js + OpenAI API for workflow automation 🔸Migrated an enterprise system to Angular + Django, cutting operational costs by 40% 🔸Created a Next.js eCommerce platform with secure payments and 95+ Lighthouse score ☑ 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 🔸7+ years of web development experience 🔸5+ years in team leadership and technical architecture 🔸Deep understanding of business logic - not just code 🔸Clear communication and a sense of ownership 🔸Always up-to-date with emerging technologies ☑ 𝐂𝐨𝐫𝐞 𝐒𝐭𝐫𝐞𝐧𝐠𝐭𝐡𝐬 🔸Mastery in Next.js, React.js, and NestJS 🔸Strong foundation in AI and automation workflows 🔸Expertise in performance optimization and cloud scalability 🔸Commitment to clean, maintainable, and well-tested code 📩 𝐋𝐞𝐭'𝐬 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐄𝐱𝐜𝐞𝐩𝐭𝐢𝐨𝐧𝐚𝐥 If you're looking for a Full Stack Developer who can handle both the technical complexity and the business goals behind your project - let's connect. 💬 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐦𝐞 𝐝𝐢𝐫𝐞𝐜𝐭𝐥𝐲 𝐨𝐫 𝐬𝐞𝐧𝐝 𝐚𝐧 𝐢𝐧𝐯𝐢𝐭𝐞 - I'd love to discuss how I can help turn your vision into a production-ready, scalable, and future-proof application. 🔖 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 Full-Stack Developer, React.js, Next.js, Node.js, NestJS, Python, SaaS Developer, AI Automation, LangChain, GPT Integration, Web App Developer, Automation Engineer, Workflow Orchestration, Cloud Developer, CRM Automation, Secure Authentication, Real-Time Applications, API Integration, Business Process Automation

With 5+ years of hands-on experience in Python automation, web scraping, and n8n/AI-powered workflows, I help businesses collect, process, and automate data and connect it into the tools they already use (CRMs, e-commerce platforms, APIs) with speed, accuracy, and reliability. I specialize in building custom scrapers, automation systems, AI agents, browser extensions, and bots that eliminate repetitive work and turn raw data into business insights. 📍 Based in Vietnam (GMT+7) | Responding within 0-4 hours | 100% Job Success ✅ What I Do Best 🕸️ Web Scraping & Data Extraction - Python: Playwright, Scrapy, Selenium, SeleniumBase, Crawl4AI, BeautifulSoup, Scrapling - Scraping dynamic, JavaScript-heavy, login-protected, and anti-bot websites - Data extraction from websites, APIs, PDFs, Excel, JSON, XML, and CSV - Handling pagination, authentication, proxies, CAPTCHAs, rate limits, and large-scale crawling ⚡ AI & n8n Automation - Building AI automation workflows with n8n, OpenAI, and Claude APIs - AI agents for lead capture, CRM sync (GoHighLevel and similar), and customer support - AI-powered document processing, classification, and summarization - Debugging and fixing existing n8n workflows payload mapping, webhook, and API errors - Automation combined with Make, Zapier, and custom webhooks 🤖 Automation, Bots & Browser Extensions - Custom Python bots for monitoring, notifications, reporting, and business automation - Chrome Extensions for data extraction, browser automation, and productivity tools - Scheduled background tasks and automated workflows - Excel, Google Sheets, Airtable, CRM, and third-party platform automation - Telegram bots, Discord bots, API bots, and webhook integrations 🛒 BigCommerce & E-commerce Data Management - BigCommerce store build, setup, and configuration - Product data management bulk upload, update, and sync via BigCommerce API - Automated pipelines: scraping/collecting supplier or competitor data and pushing it directly into BigCommerce catalogs - Inventory, pricing, and product feed automation - Data cleaning, formatting, and mapping for accurate product listings 🖥️ Desktop Applications - Cross-platform desktop tools built with Python - Excel, Apple Numbers, PDF, CSV, and document automation - Batch processing, invoice generation, reporting, and data conversion - User-friendly GUI applications for non-technical users - Packaged standalone apps for Windows and macOS 🔗 APIs & Backend Development - REST API & GraphQL integrations - FastAPI, Flask, Django - Connecting SaaS platforms, CRMs, databases, and third-party services - Scalable APIs, automation backends, and data pipelines ☁️ Cloud, Deployment & Infrastructure - AWS EC2, Docker, Linux servers, GitHub Actions - PostgreSQL, MySQL, MongoDB - Ubuntu/Linux deployment, monitoring, and maintenance - Production-ready automation environments ✅ Why Clients Hire Me - 5+ years specializing in Python automation, web scraping, bots, and AI/n8n workflows - Built 100+ custom scrapers, automation systems, bots, and Chrome Extensions - Experienced with complex, JavaScript-heavy, login-required, and protected websites - Strong expertise in API integrations, CRM automation, and scalable data pipelines - Clean, maintainable, production-ready code with documentation - Reliable communication, on-time delivery, and long-term support If you're looking for a Python developer to build reliable web scrapers, n8n/AI automation workflows, CRM integrations, bots, Chrome Extensions, or scalable API-driven solutions, message me happy to review your requirements and turn them into a production-ready tool.

Over 6 years working in Industrial Automation (Control Systems, Process Control). I have worked as a System Integrator in PLC-HMI-SCADA systems such as: 1. PLC: Experience in configuration, programming (ladder, SCL, SFC) the following: • Siemens: S7-200, S7-300, S7-400, S7-1200. • Allen-Bradley: Micro 800, 850, Micrologix 1000, 1500, SLC 500, Compactlogix 1769- L18/1769-L32, and Controllogix 1756-L73. • Mitsubishi: FX1N, FX2N, FX3U, ACPU, QCPU. • Omron: CP1L, CP1H, CP1E. • Delta: DVP-SS2, DVP-SA2, DVP-ES2. 2. HMI: Designing User Interface/Screens/Pages, coding proficiently with HMI below: • Proface: GLC Series, SP5000 Series. • Mitsubishi: GOT 2000 series. • Siemens: KTP1200, MP 377. • Allen-Bradley: Panelview 800, Panelview plus 7. • Weintek: MT8071iP, MT8102iP, cMT3162X. • Kinco: MT4523T and GL043E. • Delta: DOP-B07S411. • Redlion: CR10001000000210. • Beijer: E1101. • Movicon Next: Emerson HMI . 3. SCADA: WinCC, Factorytalk View, Intouch Wonderware, GEO SCADA Other: • Conversational level in English. • Be able to learn new types of PLC-HMI-SCADA fast. • Strong project management, teamwork, and communication skills. • Be able to accommodate myself to work with high pressure well. • Good at problem-solving, and failure analysis. • Basic level in VB, C++, C#.

🚀 Welcome to My Profile! 🚀 I am a Software Engineer with 5+ years of experience in software development. My expertise spans Python, .NET, C#, SQL Server, Node.js, Vue.js, and React.js, and I am committed to delivering high-quality solutions tailored to your needs. 🔹 My Services: ✅ Website Development 🌐 ✅ Automation Development ⚙️ ✅ AI Agent Developent🤖 ✅ Web Scraper Development 🕵️‍♂️ ✅ Discord Bot Development 🤖 ✅ Telegram Bot Development 📩 ✅ AI Application Development 🧠 ✅ Windows Application Development 🖥️ ✅ Unity Game Development 🎮 ✅ CI/CD Pipeline Setup 🔄 ✅ Version Control (Git, SVN) 🗂️ 💡 Let's collaborate and bring your ideas to life! Feel free to reach out. 🚀

Stop wasting hours on manual data entry. Let’s automate it. As a Computer Science Engineer from top-tier HCMUT, I help businesses scale by turning messy, complex websites into clean, structured data pipelines. Whether you need to monitor competitor pricing, generate B2B leads, or scrap millions of products from E-commerce platforms, I design robust automation scripts that don't break. What I can do for you: - Advanced Web Scraping: Bypass Cloudflare, Captchas, and complex login walls using Scrapy, Selenium, and BeautifulSoup. - High-Concurrency Crawlers: Optimized Python scripts built for speed and massive data scale. - Custom Automation: Automated daily data extraction directly to Google Sheets, AWS, or your CRM. Why clients love working with me: - 100% Job Success Rate & 5-Star Reviews. - Clear communication & fast response times (under 4 hours). Click "Invite to Job" to discuss your data needs today!