Hire the Best Data Structures Specialists
in Vietnam

Software Engineer with 4 years of experience specializing in backend development, distributed systems, and applied ML integration. Skilled in Java, JavaFX, Rust, PostgreSQL, SQLite, Spring Boot, Google Cloud, and Kubernetes, with a track record of optimizing performance and delivering high-quality software solutions. Fluent in English, with experience working with offshore teams and clients across both fields, delivering clear and effective communication across cultural boundaries.

Hello! I'm Tuan, a fourth-year student at Hanoi University of Science and Technology, majoring in Mathematics and Informatics. With a strong passion and curiosity for technology, I'm always seeking opportunities to apply and enhance my skills in this field. Throughout my academic journey, I have accumulated a deep understanding of Mathematics and Informatics, from theory to practical applications. I have participated in and completed numerous research projects and real-world assignments at university, ranging from software development to optimization problem-solving. This has helped me develop effective analytical, problem-solving, and programming skills. In addition to technical expertise, I also have experience working in teams and communicating effectively. I'm always ready to collaborate with colleagues to achieve the best results, believing that teamwork is key to success in any project. I'm particularly interested in applying my skills to solve real-world problems and contribute value to the community. Therefore, I'm seeking opportunities to join exciting and challenging projects where I can apply my knowledge and skills to contribute to their development and success. If you're looking for an enthusiastic freelancer with deep knowledge and strong technical skills, I'm eager to collaborate with you to deliver the best solutions for your project. Thank you for taking the time to read my introduction. Please feel free to contact me if you have any questions or would like to discuss ideas for your project. Best regards, Tuan

✅JAVA - Java core, java command line Application, JavaFX, Java web(Spring, Struts, Sevlet) - Strong with many modern framework like String, Quarkus,... - Jasper, Tibco jasper report, convert jrxml into jasper file - Run ffmpeg to convert video/image format - JSP and servlet coding, Thymleaf - SQL developer with experience to improve Database performance - API integration, RestAPI development - Familiar with AWS service such as: S3, EC2, lambda or VPC - Web scraping with Java and Selenium web driver ✅Database - Expert at SQL query with complicate query - Database optimization and query tuning - More than 10 years experience working with many relation database such as Oracle, MySQL, Postgres - Database design, schema design ✅KAFA - Expert level of kafka development - Strong at message queue and event processing - Expert in kafka configuration, consultancy - Work well on both java/python ✅PYTHON: - Flask and Django framework - Pandas, Numpy, PyGUI, Twinker - Web scraping with Selenium, BeautifulSoup, HTML parse,... ✅NODEJS - Typescript - Express framework with MongoDB, Relational DB ✅Bash scrip/Powershell - Shell script, C shell, Powershell - Automation script for web scrapting, sending mail, task processing, ... ✅Cloud: - AWS, GCP, Azure ✅Front-end: - Angular, VueJS and ReactJS

Need a Python data engineer who can turn operational databases into a lakehouse and in-product analytics — not another notebook? I build Iceberg lakes, Glue/Spark pipelines, Cube.js semantic layers, Postgres CDC, and the NestJS/Vue reporting layer for SaaS teams that need production data, not a prototype. With 5+ years of data and backend engineering, I can own the path from source systems through the lake, the semantic layer, and the report your users actually click. 🚀 What I can build for you: • Iceberg data lakes on AWS Glue / Spark • Tenant-scoped ETL (one org cannot stall or leak into another) • Schema evolution, compaction, and data-quality checks • Postgres CDC into Iceberg / Parquet / Athena • Cube.js semantic layers with row-level security • In-product BI: query proxy, Excel export, Vue report UI • Terraform for Glue jobs and lake infra • Athena-ready tables for analytics 🐍 Python is at the core of my data work: • Python + Spark on AWS Glue • Iceberg writers (append, overwrite, upsert) • PostgreSQL, Parquet, and Athena • Batch jobs and scheduled pipelines • NestJS / TypeScript APIs when the product sits on the lake ⚡ I can also handle the product around the data: • Vue 3 report builders • NestJS query proxies and export jobs • AWS (Glue, S3, Athena, Lambda) • Docker and GitLab CI • Multi-tenant SaaS (org + centre scope) My goal is simple: understand the source system and the question you cannot answer today, pick the right grain and security model, and ship something that runs in production. Whether you need a Glue/Iceberg lake, CDC that does not lie about LSN, a Cube.js layer with RLS, or self-serve reports with Excel export, I can take ownership from pipeline through the UI. ✅ 5+ years data / backend engineering ✅ Long-term projects welcome ✅ Open to negotiating the hourly rate ✅ Available for a trial task if required

Need to automate your workflow or build a smart AI Agent? I deliver fast, clean, and efficient Python & AI solutions. ​I am a developer specializing in bridging the gap between manual work and smart automation. Whether you need a sophisticated AI Agent using OpenAI/LangChain or a robust web scraper to extract data, I can help you save hours of work. ​What I can do for you: ​AI Agents: Custom GPTs and AI-powered chatbots using LangChain and OpenAI API. ​Automation Tools: Python scripts to automate browser tasks, Google Sheets, or social media. ​Web Scraping: Extracting complex data from various platforms into Excel/CSV. ​Web Development: Quick bug fixes (HTML/CSS/JS) and API integrations. ​I focus on the final result and clear communication. I am available to start immediately and dedicated to helping your business grow with automation. ​Let’s chat to discuss your requirements!

Hello, thanks for checking out my profile. I am a C/C++ software developer, with good algorithmic ability. I spent several years working in my home country and now I'm here to expand my horizons and gain some much-needed experience in an international environment, I can help you: - Know about C/C++ programming, OOP, concurrency. - Linux, C/C++ projects from start to finish. - Solve complex algorithm/data structures problems using C++ I am confident in my professionalism and ability to complete work before deadlines. My goal is to exceed my customers' expectations. I look forward to working with you to solve your problems and improve your business productivity. Send me a message. I'll reply within 30 minutes. Thanks you so much!