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Senior Fullstack Software Engineer | Java, Node.js, React | CMS & IoT Expert 🚀 About Me I am a Senior Fullstack Software Engineer with 4+ years of experience in developing high-performance web applications, CMS platforms, and IoT solutions. My expertise spans across Java Spring Boot, Node.js, React, Magnolia CMS, and cloud-based architectures. I have led teams, optimized complex systems, and built scalable solutions for enterprise-level clients. 🔹 Backend: Java Spring Boot, Node.js, NestJS, Microservices, GRPC 🔹 Frontend: React.js, React Native, Headless CMS 🔹 CMS: Magnolia CMS, Liferay, WordPress 🔹 Databases: MySQL, MongoDB, SQL Server 🔹 DevOps & Cloud: Docker, Kubernetes, GitLab CI/CD, AWS 🔹 IoT & AI: Zigbee, MQTT, OpenCV, AI-based detection systems 💼 Notable Projects ✅ MMP’s CMS Website: Built a Java Spring Boot-based CMS optimized for high traffic and large datasets. ✅ Dentsu’s Headless CMS: Developed a scalable API-driven CMS using Magnolia CMS and React. ✅ Yoolife & YooIOC Applications: Smart city applications for residential and operational management. ✅ IoT Platform for Smart Devices: Developed a gateway integrating Zigbee, Z-Wave, and BLE devices with AI-powered event detection. 🔍 Why Work With Me? ✔ Proven expertise in enterprise CMS solutions & IoT systems ✔ Strong problem-solving skills in system architecture & optimization ✔ Experience leading development teams & mentoring junior engineers ✔ Passionate about building scalable, high-performance applications Let’s connect and bring your ideas to life! 🚀

🏆 TOP-RATED (TOP 10% on Upwork) |💭 Looking for a tech partner to bring your vision to life? Whether you're launching a startup, scaling an existing business, or pivoting your current venture - I’m here to help you succeed. 🔍 What I Can Help You With: 🚀 MVP Development: Build and launch MVPs in record time, so you can test the market and monetize quickly. 🚀 Full-Stack Development: Seamless front-end and back-end solutions designed for performance, scalability, and maintainability. 🚀 Custom Cloud Solutions: Thoughtfully designed architectures that are cost-effective from day one and scale seamlessly with your growth. 🚀 AI-Powered Tools: Enhance your business operations with intelligent chatbots, recommendation engines, or sales tools. 🚀 Reliable Data Pipelines: Automate data aggregation with robust pipelines that seamlessly integrate APIs, scrapers, and data feeds for real-time updates. 🚀 Technical Leadership: End-to-end project guidance, from inception to operating successfully in production during peak times. 👨‍💻 Tech I Work With: 💻 Backend / Front end / Full-Stack Development: ✔️ Java (Spring / Quarkus) / Python (Flask) / Node.js / Express.js ✔️ PostgreSQL / MSSQL / ORACLE ✔️ React / Angular / JavaScript / TypeScript ✔️ HTML / CSS / Tailwind / Ant Design ☁️ AWS Cloud: ✔️ Serverless / Lambda / Step Functions / API Gateway / S3 / DynamoDB / SNS / SQS / etc 🚀 Infrastructure as code & CI/CD: ✔️ AWS CDK / OKD / Serverless framework ✔️ GitHub Actions / GitLab CI/CD What Clients Say About Me: ⭐️⭐️⭐️⭐️⭐️ "Thanh is a nice person to work with! We implemented a lot of functionality in open source library. Some tasks were really hard to implement. I recommend Thanh as experienced java developer." ⭐️⭐️⭐️⭐️⭐️"Thanh did a wonderful job on our project, would not hesitate to work with again." ⭐️⭐️⭐️⭐️⭐️ "He is best freelancer i have met to work on Java" 🚀 Let’s Build Your Next Big Thing! 📊 I believe that thoughtfully designed solutions should be both cost-effective and scalable. With a decade of experience in software architecture and technical leadership, I ensure your projects are built to succeed—so you can focus on what truly matters: your business. 💼 Ready to partner? Message me today, and let’s get started!

Software Engineer with 4 years of experience specializing in backend development, customer engagement, and cross-team collaboration. Proven ability to bridge technical teams and clients, ensuring seamless project execution. Adept in Java, JavaFX, Rust, PostgreSQL, SQLite, SpringBoot, Google Cloud, and K8s with a strong focus on optimizing performance and delivering high-quality software solutions. Fluent in English, with experience working with offshore teams, delivering clear and effective communication across cultural boundaries.

Hello, My name is Nam. If you are looking for an Mobile Developer to build a App? You are at the right place I am an experienced Mobile Apps Developer having 9+ years of experience in Android Apps Development with 4 years with Java Language and 5+ years for Kotlin with 2+ years for Flutter. Also, I have experience crawling data from the web with Python. Feel free to contact me anytime. Just shoot me a message and I will be there for your service. Regards, Nam Tran

💡 Whether you need a new product built from scratch, help with cloud infrastructure, or expertise in digital signatures and security, I can help you deliver results. I bring together strong backend development skills with solid DevOps and cloud expertise, so you don’t just get code — you get a solution that’s ready for real-world growth. What I Can Do for You 💻 Software Development - Build robust back-end systems using Java or Python, Golang - Deliver production-ready APIs with Spring Boot, Django, Flask, FastAPI - Develop and customize enterprise platforms — including Warehouse Execution Systems (WES) and Warehouse Control Systems (WCS) at Fortna, covering order orchestration, inventory management, and integration with conveyors, sortation, and robotics in automated fulfillment centers 🤖 AI Agents & Automation - Design and build AI agent workflows that automate real business processes — data extraction, document processing, customer support, internal tooling, and reporting - Use AI tools (Claude, Cursor, Codex, LangChain-style orchestration) to ship products faster and reduce manual workload - Build custom integrations connecting AI agents to your existing systems (databases, APIs, internal dashboards) so automation actually fits into your workflow, not bolted on top of it 🗄 Databases & Data Engineering - Design and optimize databases (MySQL, MongoDB, Neo4j, Redis) - Build ETL pipelines and data warehouses (on-premise or cloud) - Web scraping & data processing with Selenium, BeautifulSoup, Scrapy, Airflow, Dagster, Playwright, ... ☁️ Cloud & DevOps - Deploy and manage apps on AWS and GCP - Automate infrastructure with Terraform - Ensure scalability with Kubernetes (K8s) - Set up monitoring dashboards with Prometheus & Grafana 🔐 Security & Digital Signatures - Implement digital signature workflows (PDF signing, PKI, CSC API) - Expertise with tools like iText, PDFBox, pyHanko, DSS Framework - Integrate cryptography & HSM solutions for compliance and security Why Clients Choose Me ✅ I don’t just code — I design, implement, and maintain full solutions. ✅ Strong focus on scalability, reliability, and security. ✅ Experience across product development, infrastructure, and consulting. ✅ Flexible: can work as a hands-on engineer or a technical consultant/partner.

With about 6+ years experience in Software project, working and self learning on multiple difference Programming Language. I'm available 24h. Contact me any time and get instant feedback. Your satisfaction is my first priority. What I Am Good At: - Backend side: Java core Rest API Java Collections Struts2 Spring boot Spring JPA / Hibernate Spring security Spring Web Microservice Netflix Eureka, Hystrix OOP (Object Oriented) Data Structures Multithreading Overloading and Overriding Exception Handling Database Connections (SQL / NoSQL) Kafka, redis, hazelcast - Frontend side: Angular, Vuejs/Vuex, React JS / Redux Wordpress Figma HTML5 CSS3 Java script Typescript bootstrap Responsive web design JQuery - Database: MySql, MariaDB Postgres Mongo Db - Other: AWS Docker