Hire the Best Data Engineers
in Vietnam

Looking for reliable Web Scraping, Data Extraction, or Custom Python Automation? I build production-ready Python solutions that automate manual workflows, extract valuable web data, and scale backend systems. Key Services & Technical Capabilities: • Web Scraping & Data Extraction: Complex scrapers built with Python, Scrapy, Selenium, and Playwright. Expert in handling JavaScript/dynamic content, CAPTCHAs, proxies, rate limits, and pagination. • Workflow & AI Automation: Custom Python bots and scripts to eliminate repetitive tasks, process business data, build automated reservation systems, and integrate AI capabilities. • Backend & API Development: Scalable backend architectures using FastAPI, Flask, PHP, and RESTful APIs. Seamless integration with PostgreSQL, MySQL, AWS S3, and Google Sheets API. • Deployment & 24/7 Hosting: End-to-end VPS deployment with automated scheduling (cron jobs), error monitoring, and continuous data delivery into CSV, JSON, or databases. • Mobile & Cross-Platform Automation: Workflow testing and data collection scripts for iOS and Android environments. Why Work With Me? • Production-Grade Code: I build robust, fault-tolerant systems built to run smoothly 24/7—not fragile one-off scripts. • 5+ Years Experience: Full-stack capability with deep technical focus on Python data engineering and backend infrastructure. • Turnkey Solutions: From raw data extraction to clean data delivery and automated daily reports. Whether you need a custom web scraper, an automated data pipeline, or a high-performance Python backend, send me a message with your project specs and let's get it built!

I am a Data Engineer with 2 years of experience specializing in data analysis and system optimization. I thrive on transforming complex data sets into actionable insights, enhancing decision-making for organizations. My background includes collaborating with organizations in trade transparency and monitoring sectors, where I implemented innovative solutions that significantly improved data accuracy and accessibility. I am adept at various data engineering tools and languages, ensuring streamlined processes and efficient data management. If you need a skilled professional who can elevate your data initiatives and deliver results, I am ready to contribute to your project and drive impactful outcomes. Let's connect to discuss how I can support your goals.

⏰ Available 24/7 – Long-term & High-impact Projects Hi, I’m Nghi, a Senior Data Engineer and Data Architect with a strong backend foundation, now focused on building high-performance analytics platforms, explainable data pipelines, and production-grade cloud architectures. I help companies transform unreliable, slow, or opaque data systems into scalable, well-documented, and business-trustworthy platforms. 🧠 WHAT I SPECIALIZE IN 🏗️ Data Architecture & Platform Design - Designing modern lakehouse & warehouse architectures - dbt-first analytics engineering with testing, freshness & lineage - Event-driven and batch hybrid pipelines - Data quality frameworks & SLA monitoring - Customer-facing data explainability systems Tools: dbt, Dagster, Airflow, Spark, Kafka, Snowflake, BigQuery, Redshift, PostgreSQL, DuckDB, ClickHouse ⚡ Database Performance Engineering - If your queries are slow, costs are high, or dashboards lag, This is my zone - Query plan analysis & index strategies - Warehouse cost optimization (Snowflake, BigQuery, Redshift) - OLTP & OLAP performance tuning - High-concurrency workload design 🔄 Reverse ETL & Operational Analytics - Syncing analytics back to CRMs & internal tools - Building real-time metrics pipelines - Feature-store style transformations 🕷️ Enterprise-grade Web Data Extraction - I don’t just scrape pages, I build durable data acquisition systems: - Complex ASP.NET, JS-heavy, authenticated & paginated systems - Anti-bot bypassing & failure-recovery pipelines - Headless browser automation + async scraping - Real-estate, finance, campaign-finance & marketplace platforms ☁️ Cloud Infrastructure - AWS | Azure | GCP - EMR / Dataproc / Glue / Dataflow / Synapse / BigQuery / Redshift - Terraform-based deployments - Cost-aware architectures - Kubernetes + Dockerized data services 🧪 What You Get Working With Me ✔️ Production-ready pipelines ✔️ Clean, testable dbt models ✔️ Well-documented architecture diagrams ✔️ Transparent data logic for non-technical stakeholders ✔️ Systems that scale beyond MVP ✔️ Honest advice and not over-engineering 🏆 Ideal Projects 👍 Data warehouse migrations 👍 Broken pipelines that need debugging & stabilization 👍 Analytics platforms that lack trust or explainability 👍 Performance bottlenecks costing thousands per month 👍 Long-term data platform ownership ❣️ Why Clients Stay Long-Term 🍀Clear communication 🍀 Business-first thinking 🍀 No black-box systems 🍀 I build systems others can maintain 🇻🇳🇻🇳🇻🇳🇻🇳 If your data platform feels fragile, slow, or impossible to explain to customers, I can fix that. Let’s make your data system something you can confidently stand behind.

With over 4+ years of experience, I have worked with top-tier brands such as Cosco Wholesale, FPT, Airbus, delivering scalable, secure, and high-performance solutions. I specialize in data engineering, analytics, AI/ML, and LLM-powered solutions, focusing on building robust ETL pipelines, optimizing data workflows, and ensuring seamless data integration across platforms. My expertise spans cloud-native, serverless, and microservices architectures. For LLM I have deep expertise in LangChain/LangGraph, Prompt Engineering, ChatGPT APIs, GPT Models, RAGs, Vector Databases and AI orchestration frameworks. I have extensive hands-on experience in data engineering, working with tools like Apache Airflow, Talend, AWS Glue, dbt, and Spark for ETL and large-scale data processing. I have designed and optimized data lakes and warehouses on GCP, AWS and Azure, leveraging PostgreSQL, MySQL, MongoDB, and Cassandra for structured and unstructured data. My expertise includes real-time data streaming with Pub/Sub, Apache Kafka and Kinesis, ensuring high availability and performance. I also specialize in AI/ML-driven data automation, leveraging LLMs for intelligent processing. My visualization expertise spans Looker Studio, Power BI, Tableau, and Grafana, enabling the creation of insightful, data-driven dashboards. With strong DevOps knowledge, including CI/CD, Docker, Terraform, and cloud infrastructure automation, I ensure scalable and optimized deployments. I am ready to start immediately and happy to discuss how my expertise can support your project.

Excel | Google Sheets | Power Query | VBA | Google Apps Script | Python I help businesses automate Excel & Google Sheets workflows, eliminate repetitive manual tasks, and build reliable inventory, reporting, dashboard, and business management systems that save time, reduce errors, and improve productivity. With over 15 years of experience working across engineering, construction, logistics, import/export, and e-commerce, I understand that spreadsheets are only one part of a larger business process. My goal is to build practical solutions that are efficient, maintainable, and easy for your team to use. I don't just write formulas or VBA code, I analyze your workflow, identify bottlenecks, and design automation solutions that improve the way your business operates. =================== SERVICES =================== 1. Business Automation - Excel VBA (Macros) - Google Apps Script - Workflow Automation - Business Process Automation - Custom Business Applications 2. Reporting & Dashboards - Power Query - Power Pivot / Data Model - Executive Dashboards - KPI Reporting - Pivot Tables & Interactive Charts 3. Business Systems - Inventory & Stock Management - Sales & Operations Reporting - CRM & Activity Tracking - Timesheets & Payroll - Project Tracking - Asset & Equipment Management - Business Performance Reporting 4. Data Processing & Analysis - Data Cleaning & Transformation - Data Validation - Data Consolidation - CSV & Excel Processing - PDF Data Extraction - Database Integration - Financial & Operational Reporting 5. Python Solutions - Desktop Automation - Web Scraping - Data Collection - File Processing - Custom Windows Applications =================== TYPICAL PROJECTS =================== I have developed automation solutions for projects such as: - Inventory Management Systems - KPI & Executive Dashboards - Google Sheets Business Applications - Multi-workbook Reporting Systems - Power Query Data Consolidation - Workflow Automation - Payroll & Timesheet Systems - Amazon & eCommerce Reporting - Survey & Engineering Data Processing - PDF Data Extraction & Reconciliation - Business Process Automation =================== MY APPROACH =================== Every business is different. Before writing a single line of code, I take time to understand your workflow, identify the real problem, and recommend the most appropriate solution, not simply the most advanced technology. - Sometimes a well-designed Excel workbook is enough. - Sometimes Power Query is the best option. - Sometimes VBA or Google Apps Script provides the greatest value. - For larger automation projects, Python may be the right choice. My objective is always the same: create solutions that are simple for users, easy to maintain, scalable, and reliable for years to come. =================== WHY CLIENTS WORK WITH ME =================== - Business-focused, not just spreadsheet-focused - Strong analytical and problem-solving skills - Clean, well-structured, maintainable solutions - Excellent communication and regular project updates - Long-term support and continuous improvements - Clear documentation and user guidance when required - Full-time freelancer committed to long-term client relationships =================== LET'S WORK TOGETHER =================== Whether you need to automate reports, build dashboards, improve inventory management, streamline business workflows, or develop a custom Excel or Google Sheets solution, I'd be happy to discuss your project. My goal is not simply to deliver a spreadsheet, but to build a solution that creates long-term value for your business.

With over 10+ years of experience, I am a dedicated professional in software development and DevOps, specializing in building scalable, high-performance applications across diverse industries. My expertise spans FULL STACK development, DEVOPS, CLOUD deployments, team leadership, and project management, ensuring efficient, innovative, and results-driven outcomes. Key Skills: * Languages: Java, Python, PHP, JavaScript (React, Vue.js, Node.js) * AI: LLM, Llama3, Diffusion * Frameworks: Spring, Nest,Expresss,React,Laravel * Cloud Services: AWS, Azure, Kubernetes, Docker * Databases: MySQL, PostgreSQL, MongoDB, Elasticsearch * DevOps & Agile Methodologies, Team Leadership, Cross-Functional Collaboration Highlights: - Led a team to design a scalable microservices architecture, enhancing performance by 30%. - Successfully migrated legacy systems to the cloud, cutting infrastructure costs by 20%. - Implemented CI/CD practices and test automation, reducing defect rates by 40%. - Fluent in English, effective communicator, and adept at managing both technical and non-technical stakeholders. I am passionate about leveraging technology to solve real-world problems and committed to innovation. Let’s connect to discuss how I can bring value to your project!