I am a Mobile and Blockchain Developer who will be happy to complete any of your projects at the high level, I have a lot of experience and skills that will help me do your job efficiently in a short time. I am always doing my work with my creativity and with my long time professional experience. My Skill Lists are the following: * Javascript(React hook, Redux, TypeScript, Node.js, Vue.js, Angular.js,Next.js, React Native) * Python, Django * PHP Frameworks(CI, Laravel) * JS Frameworks(MERN and MEAN, MEVN) * React Native, Flutter, Java * Wix, WordPress, WooCommerce * Unity * C, C++, C# * Qt * Blockchain, Smart Contract, Web3, Solidity, Golang

Hi there! I’m Juan, an Automation Expert and AI Chatbot Developer with a strong background in Python, conversational interfaces, and cloud-native API integrations. 

- 20 + autonomous agents delivered at PanteraGPT, saving clients hundreds of work-hours in support, sales, and internal operations.
 - Prompt Engineer & API Specialist – I craft step-by-step prompts and build REST/GraphQL endpoints so agents act on live data with minimal hallucinations. 
- Cloud-first mindset – serverless on AWS (Lambda, S3, API Gateway) and Google Cloud (Cloud Run, Cloud Functions, Cloud Storage buckets) for scalable, pay-as-you-go deployments.
 - Bilingual (English | Spanish) – crystal-clear communication with global teams and end-users.

I’m currently pursuing a BSc in Artificial Intelligence at Vrije Universiteit Amsterdam, deepening my expertise in machine learning, knowledge representation, and human-computer interaction—knowledge that powers every solution I deliver on Upwork. What I Do Best End-to-end automation – process mapping ▶ prompt engineering ▶ agent build ▶ testing ▶ deployment. Conversational interfaces – FlowXO, n8n, Zapier/Make, bespoke chat UIs that feel natural. Python development – Django, FastAPI, Flask, data pipelines, web scraping, Selenium. AI & LLM tooling – OpenAI (GPT-4o), LangChain, Retrieval-Augmented Generation, guardrails. Cloud & DevOps – • AWS: Lambda, S3, API Gateway, CloudWatch, CDK/Terraform. • Google Cloud: Cloud Run, Cloud Functions, Cloud Storage buckets, Pub/Sub. • CI/CD: Docker, GitHub Actions, GitLab CI for reliable, repeatable releases. Frontend / full-stack – React, Node.js, HTML/CSS for projects needing a polished UI. How We’ll Work Together Discovery & scoping – clarify goals, KPIs, success metrics. Rapid prototyping – quick wins in no-/low-code to prove value early. Robust delivery – clean code, docs, tests, dashboards, hand-off or ongoing support. Transparent communication – frequent updates in English or Spanish, fast replies. Education BSc Artificial Intelligence (in progress) – Vrije Universiteit Amsterdam
Coursework: Python programming, logic, intelligent systems, knowledge representation, HCI. Ready to automate your workflows and delight your users with smart, cloud-native conversational agents? Let’s talk!

Coding HTML, CSS, and JS since 2014 with a Master's degree in computer application(MCA), my experience in adapting web technology to meet customer needs is extensive. I enjoy bringing value to clients via eCommerce, B2B, SaaS solutions, legacy integrations, and optimized JavaScript-driven applications. My focus has been directed towards JavaScript libraries such as React, Next.js, and Node.js. Throughout my career, I've worked on multiple agile teams as a core developer and am now interested in working on anything JavaScript-related.

I am a Full Stack Web Developer with 5+ years of experience. I understand the process of solving complex server-side web applications as well as front-end. I can build entire Websites from scratch or I can optimize an existing app already in the field My key skills are: PHP/Laravel Web Application Development Modern Website Development: from scratch, revamp, update, customize Front end technologies: React.js/Redux, Angular.js, Vue.js, ES6, Javascript, HTML5, CSS3. I can also build UI/UX outstanding interfaces Back end technologies: Node.js, Laravel, PHPS Database : MongoDB, Postgresql, MySql, Mssql, Nosql Provide quality results Take responsibility for projects I take I generally work in US time I can speak fluent English I am willing to establish a long term work relationship My work is always a quality product that is focused on the growth of the client's business. I offer successful projects and the right options for their implementation, in order to get the most successful solution result.

Hi! I'm a professional Web Developer and Shopify Store Expert with experience in building high-performing websites and e-commerce stores. I help businesses: ✅ Build professional Shopify stores from scratch ✅ Design and develop responsive websites ✅ Customize Shopify themes ✅ Fix website bugs and improve performance ✅ Optimize stores for conversions and speed Whether you are starting a new business or improving an existing store, I can help you create a clean, modern, and high-converting website. Why work with me? ✔ Clean and professional design ✔ Fast delivery ✔ Clear communication ✔ 100% client satisfaction focus Let’s build your online business together!

I'm a frontend developer with professional experience since 2008 and a strong passion for modern UI development. I thrive on collaborating with designers and proposing creative solutions to build rich, interactive interfaces and animations.

As a seasoned software developer, I bring a wealth of expertise and a proven track record of delivering high-quality solutions. With proficiency in languages such as Python, Java, and JavaScript, I specialize in full-stack development, ensuring end-to-end excellence in applications. My extensive experience encompasses designing and implementing robust, scalable systems that meet the unique needs of diverse projects. My commitment to writing clean, maintainable code is evident in every project I undertake. I thrive on tackling complex challenges, leveraging strong problem-solving skills to create innovative solutions. Whether it's optimizing existing code, developing new features, or troubleshooting issues, I approach each task with meticulous attention to detail. Collaboration is at the core of my work ethic. I excel in interdisciplinary teams, fostering open communication and contributing to a positive, results-driven environment. Through effective collaboration, I've successfully delivered projects on time and exceeded client expectations. Staying abreast of industry trends, I am dedicated to continuous learning and adapting to emerging technologies. This proactive approach ensures that the solutions I deliver are not only cutting-edge but also align with the latest industry standards and best practices. My portfolio includes diverse projects ranging from e-commerce platforms to data-driven applications. I have a keen understanding of user experience, incorporating intuitive interfaces that enhance overall usability. Additionally, I have experience integrating third-party APIs, implementing security measures, and optimizing performance to enhance overall system efficiency. On Upwork, I am committed to providing clients with reliable, timely, and cost-effective solutions. I understand the importance of clear communication and am responsive to client needs and feedback throughout the project lifecycle. My goal is to not only meet but exceed client expectations, delivering software that adds tangible value to their business. If you're seeking a software developer with a passion for excellence, a knack for problem-solving, and a proven ability to deliver results, I am eager to contribute my skills and experience to your project. Let's collaborate to turn your vision into reality and create software that stands out in today's competitive landscape.

I’m a web developer based in the Netherlands (near Eindhoven), running my own company as a self-employed professional (ZZP). I build websites that are clear, structured, and easy to use — because I believe simplicity is not minimalism, it’s clarity. I genuinely enjoy web development. Not just writing code, but thinking about structure, performance, and how real users move through a page. A good website should feel effortless. It should guide people naturally, without confusion or unnecessary complexity. My strengths include: - Clean, scalable front-end development - Clear page structure & information architecture - Performance-focused implementation - Logical content hierarchy I care about simplicity — in code, in layout, and in communication. Overcomplicated solutions rarely age well. I prefer building things that remain stable and understandable long-term. Beyond the technical side, I enjoy building new connections and working closely with clients. Clear communication and strategic thinking are just as important as clean code. Whether it’s a structured landing page, a complex category page, or a full website, I aim to deliver work that feels solid, intentional, and scalable. If you're looking for someone who combines technical skill with structural thinking and a practical mindset — I’d be happy to connect. Let’s build something clear and effective.

Hello, everybody! Thank you for your attention. My objective is to meet the requirements of the clients and Highlight there presence over the internet. I have 10+ years of experience in Frontend, Backend and Server Side Development. And I am very talented with web development and blockchain development. 1) CORE SKILLS * React | Vue.js | Angular * Next.js | Nuxt.js | Nest.js * Blockchain | NFT | Ethereum | Smart Contract | Solidity * HTML | HTML5 | CSS | SCSS | Bootstrap | Tailwind * MERN (MongoDB + Express + React + NodeJS) * React + Firebase | Vue.js + Firebase | Angular + Firebase * Laravel + React | Laravel + Vue.js | Laravel + Angular * JavaScript | jQuery | TypeScript * MongoDB | MySQL | Firebase * MEVN (MongoDB + Express + Vue.js + NodeJS) * MEAN (MongoDB + Express + Angular + NodeJS) 2) SERVICES * Responsible communication (any time). * Free DevOps | Git | Heroku | Docker * Deliver Daily or Weekly results. * Flexible Time Zone * Full Time(24/7) Development with a weekend. * Provide professional code like the unit test in RESTful API endpoint. Thank you.

I spent the greater part of the last 18 years working on web and mobile app development to help businesses and entrepreneurs provide services that set them apart from their competitors. The 'do more with less' approach I take in designing solutions aims to empower clients to achieve higher levels of profitability, recapture time and resources previously consumed by inefficiency, and invest those gains in any way they see fit. Technically speaking, I primarily work with the following development stack: - HTML5, CSS3/SASS/LESS/Stylus, Twitter Bootstrap/Bulma - React, Vue, AureliaJS, Backbone, Ember - Node.js/Express.js, Laravel framework, CodeIgniter, ASP.NET, Ruby on Rails - Wordpress, Drupal, Magento - Contentful CMS, Netlify CMS - MySQL, PostgresSQL, MongoDB, FirebaseDB, DynamoDB, AzureDB - Objective C, Swift, Android - React Native, Flutter - Ionic, PhoneGap - AWS, Digital Ocean, Heroku - Webpack, Gulp, Grunt - Jasmine, Mocha, Chai, Enzyme If you are looking for a developer that's truly an expert, driven by passion, not afraid to take on a challenge, I will be there with you every step of the way then look no further as I am your guy. Thanks, Dirk-Jan