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I’m a Full Stack Blockchain & Web Developer with 4+ years of experience crafting smooth, scalable, and high-performance applications. My work blends clean UI/UX design with robust backend logic, optimized system performance, and secure, maintainable code. Based in Singapore and originally from China, I graduated from the Singapore University of Social Sciences with a BSc in Information and Communication Technology. My passion lies in building decentralized applications, integrating smart contracts, and collaborating closely with teams and clients to bring ideas to life. Whether it’s Web2 or Web3, frontend or backend, I aim to exceed expectations.
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Hi! I'm a Fullstack/Frontend Developer with over 4 years of experience building user-centric and visually engaging web applications. I’ve successfully delivered over 12 projects across 5 teams, creating solutions that improve both business performance and user experience. My skill set includes React, TypeScript, Emotion, Express.js, and various state management tools. In addition to web platforms, I also have solid experience developing Progressive Web Apps (PWAs) and mobile applications using web technologies, enabling me to build cross-platform solutions that perform seamlessly on both web and mobile. I am passionate about clean code, modern UI/UX, and crafting high-quality, scalable applications. Open to freelance projects and exciting collaborations! 📧 Email: saeedmirzaee@protonmail.com 💬 Telegram: @saeedmirzaee7091
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LinkedIn: https://www.linkedin.com/in/javad-razi-43b39332b/ Software Engineer with expertise in backend development, system architecture, and scalable solution design. Experienced in startups, research labs, and large-scale ventures, with a focus on building reliable systems using modern technologies. Skilled in problem-solving, system optimization, and team collaboration to deliver high-quality software solutions.
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With over a decade in the software industry, I’ve learned that collaboration and mutual respect are the foundation of any successful team. My journey began with Microsoft technologies in 2007, working with .NET Framework 1.1 through to .NET 8. Over the years, I’ve gained deep experience in building scalable, enterprise-grade applications and backends using .NET, Python, and Node.js. I’ve led technical and DevOps efforts across industries—banking, telecom, travel, and blockchain—building robust infrastructure, increasing test coverage, and driving automation. From smart contract development and AI integrations to CQRS, DDD, Kubernetes, and CI/CD pipelines, I bring a hands-on, adaptive, and quality-driven mindset. Always eager to learn and explore, bridging the gap between development and operations, and delivering reliable, innovative solutions.
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Hello, Sir. Do you have a good idea related to blockchain? If yes, implementation is never problem! I am a blockchain architecture designer with 7 years of experience in blockchain technology and web development. My greatest skill is planning, designing, developing, testing, deploying and maintaining blockchain-based projects. I have achieved mastery over the full lifecycle of these projects, from conceptualization and architectural design through implementation, testing and deployment. There are several significant projects like Nova Solutions Tools(trading platform), Yearn Finance, ForwardProtocol, Justbet, Metadallion, Acotocracy, XFI, Factory etc. I take pride in my skills and believe that I can help you as a professional. Thank you.
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I am a Senior Backend Engineer at Statista with over 5 years of experience in eCommerce and SaaS. I specialize in PHP, GoLang, Java, AWS, and Google Cloud, creating scalable and high-performance systems. My expertise spans microservices, public APIs, and technologies like Docker, Kubernetes, Kafka, and Redis. I’m passionate about innovation and quality, focusing on delivering efficient, future-proof solutions. As a mentor, I’m committed to helping others grow, currently guiding a junior team member on their development journey. Outside of work, I’m interested in IoT, smart homes, and automation. I enjoy skiing, video games, and staying up to date with the latest tech trends. Let’s work together to build something great!
Skills
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With over 8 years of experience as a full-stack and blockchain developer, I bring a wealth of knowledge and a proven track record of delivering high-quality, scalable solutions.
Skills
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I have worked as a full-stack developer since 2016, a period during which I have worked in different environments, from start-ups to international companies. I am a self-motivated and self-taught professional who likes to solve problems. I merge a passion for usability and user experience with technical knowledge to create cool digital experiences. My repertoire includes programming languages and tools such as ReactJS, Vue, NodeJS, Python, MySQL, PostgreSQL, Nginx, MongoDB, Redis, and Elasticsearch. I also deploy applications using cloud computing like AWS EC2, ECS, S3, Azure, Heroku, and Github, and configure CICD on Gitlab and Github.
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Hello! It's a pleasure to meet you. It is VietThanh Sai from Vietnam. As a Full-stack blockchain developer, I have worked on a variety of successful projects with a deep passion for coding, which has given me a diverse skill set. I am eager to contribute to your business and collaborate with like-minded individuals who share my passion for Blockchain technology. Thanks. Warm Regards VietThanh My website: vietthanhsai.vercel.app
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I am writing to express my interest in the web development freelancing projects. With over 7.4 years of experience in developing robust web applications and websites, I am confident in my ability to contribute effectively to your team. In my recent role at Facile Services Pvt. Ltd., I honed my skills in custom WordPress development, plugin creation, and theme design. My expertise extends to optimizing URLs, creating engaging landing pages, and executing successful email campaigns. At Plus91 Technologies Pvt. Ltd., I developed a comprehensive Hospital Management System, collaborating closely with government officials to meet precise project requirements using CorePHP and MySQL. Throughout my career, I have demonstrated proficiency in various frameworks, including Laravel, CodeIgniter, and CakePHP, and have extensive experience with databases such as MySQL and PostgreSQL. My familiarity with a range of APIs and tools, including DataTables JS, JWT, and PHPEx
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I am a highly skilled Python Developer. I specialize in web scraping and data extraction. I develop AI-powered agents using LangChain and LangGraph, enabling intelligent automation and decision-making processes. I have strong proficiency in PostgreSQL, Django, FastAPI, RabbitMQ, Celery, Redis, Nginx, Docker.
Skills
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Full Stack Developer with expertise in building scalable, high-performance applications using NestJS, Node.js, and React. Proficient in microservices architecture, AWS cloud integration, and business process automation with Camunda, with additional experience in GraphQL APIs and blockchain solutions. Known for delivering innovative, user-centered applications across industries, leveraging a strong foundation in both frontend and backend technologies to drive business growth and enhance operational efficiency