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Full-Stack Developer & Data Engineer specializing in building scalable web applications, high-performance front-end experiences, and modern data solutions. I help startups, agencies, and businesses transform ideas into fast, reliable, and visually polished digital products. My experience combines front-end craftsmanship with backend architecture and data engineering, allowing me to build complete end-to-end solutions. On the development side, I work with technologies such as React, Next.js, TypeScript, Tailwind CSS, Node.js, PostgreSQL, and modern API architectures to create responsive, scalable, and conversion-focused applications. I pay strong attention to UI/UX, performance optimization, SEO, and clean maintainable code. On the data engineering side, I build ETL pipelines, automate workflows, process large datasets, and create analytics solutions using Python, SQL, Apache Airflow, dbt, and cloud platforms. I enjoy turning complex data into actionable insights and scalable infrastructure. What I can help you with: • Full-stack web development • SaaS applications • Landing pages & marketing websites • API integrations & backend systems • Dashboard & analytics platforms • Data pipelines & ETL workflows • Database design & optimization • Automation scripts & cloud workflows • Performance optimization & Core Web Vitals • Responsive and mobile-first development I combine technical precision with a strong eye for design and user experience. My goal is always to deliver products that are fast, scalable, and built with long-term quality in mind. Joaodeabreu.work

About Me Specializing in Information Technology at Metropolia University of Applied Sciences, I bring a strong technical foundation combined with real-world experience in IT operations, 2nd line support, software development, and Linux system administration. I thrive in fast-paced environments, solving complex technical challenges and delivering efficient, user-focused solutions. As the founder of Chapa SS IT Solutions, I’ve gained hands-on experience not just in tech, but also in leadership, innovation, and client collaboration. This entrepreneurial journey has strengthened my ability to manage projects end-to-end—from system setup to software delivery. 🔧 My Core Strengths Include: • 2nd Line IT Support & Troubleshooting • IT Operations & System Maintenance • Linux System Administration • Core Java & Object-Oriented Programming • Software Development & Testing • Network Configuration & Security • Customer-Focused Tech Solutions 🚀 I'm always looking for new challenges and collaborations in IT—whether it's scaling infrastructure, writing clean code, or improving operational workflows. 📬 Let’s connect if you're looking for someone who combines technical expertise with a passion for building reliable, scalable tech systems.

As an experienced Front-end Developer, I specialize in creating fast, user-friendly websites featuring cool animations, 3D elements, and data-intensive applications like online stores. I have brought designs to life and delivered over 15 diverse projects. My work is not just about coding; it's about creating websites that meet unique business needs. Whether it's a simple landing page or a complex online shop, I focus on delivering results. I am always learning and staying updated on the latest trends in web development. Additionally, I am multilingual, speaking 4 languages. Skills ✅ Technologies: HTML5, CSS3, SASS/SCSS ✅ Languages: Javascript ES6, Typescript ✅ Frameworks: React, Next.js, Vue.js, Nuxt.js ✅ State management: Redux, Vuex, Pinia ✅ JavaScript Libraries: GSAP, Three.js, Chart.js, Axios ✅ CSS frameworks: Tailwind CSS, Material UI, Bootstrap ✅ Bundlers: Vite, Webpack, Gulp ✅ Version Control: Git, Github ✅ Great understanding of UX and UI, SEO practices

Experienced Full-Stack Developer | 14 Years in Dotnet, React, Node.js,, and More Greetings! I'm a seasoned full-stack developer with over 14 years of hands-on experience in crafting robust and scalable solutions. My expertise lies in a diverse set of technologies, including .NET Core, React, Sql Server, Azure, HTML, CSS, JavaScript, TypeScript, C#, Node.js, .NET Core, SQL, NoSQL. Key Skills: - .NET and Node.js: With a deep understanding of the C#, JS, TS languages and the .NET, Node.js frameworks, I've successfully delivered a myriad of applications, ensuring high performance and maintainability. - React and JavaScript: Proficient in front-end development, I specialize in building dynamic and responsive user interfaces using React and JavaScript. I prioritize a seamless user experience through intuitive design and smooth interactions. - HTML and CSS: I pay meticulous attention to detail, creating visually appealing and standards-compliant user interfaces using HTML and CSS. - Database Expertise: My strong command of SQL and NoSQL allows me to design and optimize databases effectively, ensuring data integrity and performance in every project. - Full-Stack Proficiency: From server-side development to crafting pixel-perfect user interfaces, I bring a holistic approach to full-stack development. This ensures that every layer of the application is well-designed, secure, and performs optimally. Why Choose Me: - Extensive Experience: With over a decade in the industry, I've successfully completed numerous projects, honing my skills and ensuring that I stay up-to-date with the latest technologies. - Collaborative Approach: I believe in open communication and collaboration. I work closely with clients to understand their requirements and provide solutions that exceed expectations. - Results-Driven: My goal is to deliver not just code but solutions that add value to your business. I am dedicated to meeting project deadlines while maintaining the highest quality standards. Let's Build Something Amazing: Whether you need a new web application, improvements to an existing system, or advice on the best technology stack for your project, I'm here to help. Let's collaborate to turn your ideas into reality. Feel free to reach out, and let's discuss how I can contribute to the success of your project.

I'm a full-time professional freelancer with a 5 star satisfaction history. Successfully completed more than 500 projects here on Upwork. Providing world class WordPress, HTML/CSS, Graphic design, Image Editing solutions using the latest development principles and techniques. I have a strong background in CSS3, HTML5, JavaScript and more. I have the ability to handle multiple projects and work quickly without sacrificing quality. Your satisfaction is key to my success. Services: 1. Web Design 2. Web Development(Custom and WordPress) 3. Banner Design(Social media, slider, retractable, Christmas, email etc.) 4. Email Design(Custom, Klaviyo, MailChimp, Active Campaign, Constant Contact etc.) 5. Logo Design 6. Info-Graphic Design 7. Brochure Design 8. Responsive Web Design(Bootstrap, Foundation, custom) 9. Front-end development using React.js 10. Google Display Network (GDN), Facebook, Instagram advertisement design 11. HTML5 Banner Ad design 12. Building websites using Wix, Webflow etc.

I'm a seasoned full-stack web and mobile developer with more than 10 years experience building robust, state-of-the-art solutions for enterprise customers with millions of users. Recently I have also used agentic tools like Cursor and Claude Code to orchestrate development and continuous integration. I'm selv-driven, attentive to details and use well-known principles for both the project management part and the software development part.