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As a dynamic and passionate full-stack web developer, I bring a wealth of expertise and an insatiable drive for innovation to every project I undertake. With a keen eye for detail and a deep understanding of the latest technologies, I am committed to delivering state-of-the-art web applications that are not only highly functional but also scalable to meet any business demand. My extensive experience spans a wide array of cutting-edge tools and frameworks, including React, NextJS, Redux, and TypeScript, allowing me to craft seamless and efficient user interfaces. I am proficient in both front-end and back-end development, ensuring that each project is crafted with the highest level of precision and excellence. As a freelancer, I pride myself on my ability to adapt quickly to the unique needs of each client, providing custom-tailored solutions that drive success. Whether it’s building robust server-side applications with NodeJS and ExpressJS, designing responsive and visually appealing layouts with CSS/SCSS or Tailwind, or managing complex databases with PostgreSQL, I am dedicated to pushing the boundaries of what’s possible. My commitment to web accessibility ensures that every application I develop is inclusive, providing a seamless and user-friendly experience for all users, regardless of their abilities. Partner with me, and together we’ll transform your vision into a reality, creating web applications that truly make an impact.

With 5+ years of professional experience in software (website, front-end, back-end, web app) development with a diverse background spanning multiple industries and roles. Throughout my career, I've demonstrated proficiency in full-stack development, system integration, and project management. My diverse experiences have equipped me with a unique skill set to tackle complex challenges and deliver innovative solutions. Technical Proficiencies: Website Technologies: Shpoify, WordPress Frontend Technologies: React, React Native, Flutter, HTML, CSS Backend Technologies: Node.js, Nest.js, TypeScript, JavaScript, Express.js, AWS, MongoDB Database Management: MySQL, PostgreSQL, JSON, Database Schema Design Architectural Patterns: MVC, Event-Driven Architecture, Serverless Architecture, Clean Architecture, GraphQL Mobile Development: iOS SDK, Swift, Objective C, Apple XCode, Android SDK, Kotlin, Java Android Studio Mobile Libraries & APIs: Alamofire, SDWebImage, Cocoapods, SQLite, Core Data Web Services & APIs: RESTful API development, Firebase Cloud Messaging, In-App Purchase Integration Code Optimization: Performance tuning, Design patterns, Material Design, Custom UI Elements, Animation Cloud Services: Firebase Analytics, Database, Storage, Hosting, Crash Reporting, AWS, DigitalOcean Social Integrations: Facebook, Twitter, Google SDK Additional Skills: Web Scraping, Image Processing, Deep Linking, Content Provider, BroadcastReceiver, Background Services Tools: Git, Github, Bitbucket, Sketch, Photoshop ----------------------------------------------------- Full Stack Development Expert, Front-end Developer, Back-end Developer, Web App Development, Mobile App Development, React, React.js, Node.js, Nest.js, Nuxt.js, Express.jsJavascript, Typescript, HTML, CSS, CSS3, PHP, Python, API Development, API Integration, RESTful API, Third-Party SDK Integration, Firebase, Firebase Firestore, Analytics, Crashlytics, Cloud Services, AWS, Amazon Web Services, Database Design, Database Management, Mobile App Development, Native App Development, Android Mobile App Development, iOS Mobile App Development, Cross-Platform Mobile App Development, Flutter Mobile App Development, Dart, Java, Kotlin, Swift, SwiftUI, ChatGPT API Integration, Web Development, Web Application, Website Redesign, Website Optimization, Database Development, OpenAI, Agile Software Development, Google Analytics, Google Cloud Platform, RESTful Architecture, Amazon DynamoDB, SQLite, MySQL, MongoDB, Realm Database, PostgreSQL, Firebase Realtime Database, Node.js Framework, Back-End Development, API, React, Front-End Development, Full-Stack Development

👋 I'm a Frontend developer with a solid background in full-cycle web development. With 5 years experience working on projects using Vue/Nuxt, React/Next, Astro, RestAPI, WebSockets, and TypeScript. I've honed my skills in UI user experience design, animation (GSAP, Lottie, JS/CSS) and SEO optimizations. I’ve cooperated with various companies from the USA, Australia, Singapore, Saudi Arabia, and Ukraine. My main aim is to help you realize your ideas and goals. I will write clear, bugs-free code and user interface, and improve your business by reviewing your design, analyzing its structure, and suggesting development technologies and possible functionality for users and administrators that are appropriate for the project. All my projects are reliable and easy-to-use solutions with a user-friendly interface and modern design. I will also provide customer support for some time after the completion of the project. I’ve developed websites for Internet shops and platforms, IT companies, marketing companies, logistics companies, start-ups, online courses, and presentation sites for payment systems. I always suggest several development options for the described tasks. After your selection and approval, I begin to develop layouts designed in Figma, Sketch, or Adobe XD. As your partner, I create page templates and component structures, connect content using API/Sockets, and optimize the website for maximum speed, promotion, SEO, and a clear and easy-to-use interface. I work with the GIT version control system, which makes work go faster than usual. After completing the main work, I conduct testing to assess the user experience. Also, I have an extra experience with Strapi CMS and WordPress. I will be happy to create a convenient admin panel with API/PHP. You can easily edit pages, create new posts, add or edit your products and edit content in general.

You don't just need a website. You need one that works. I'm a Top Rated Upwork freelancer with a 100% Job Success Score, specializing in Shopify & WooCommerce development, WordPress design, and UI/UX, all under one roof. Whether you're launching a new store, redesigning an existing site, or scaling an ecommerce brand, I bring the rare combination of design thinking and technical execution that most developers can't offer. == SHOPIFY DEVELOPMENT == → Custom Shopify theme development & Liquid templating → Shopify 2.0 sections, blocks & dynamic sources (Online Store 2.0) → Headless Shopify builds with Hydrogen & Oxygen hosting → Shopify Plus customizations, scripts & B2B features → Shopify Functions for custom discounts, shipping & payment logic → Shopify Markets for multi-currency, multi-language & international stores → Checkout UI extensions & post-purchase pages → Metafields, metaobjects & dynamic data structures → Shopify Flow automation & custom workflows → Theme App Extensions & App Blocks → Storefront API & Admin API integrations → Custom app development with Node.js & Shopify CLI → App integrations: Klaviyo, ReCharge, Gorgias, Yotpo, Judge.me, Loox, Okendo, Privy, Omnisend, LoyaltyLion, Aftership, ShipStation → Product bundles, upsells, cross-sells & subscription models → Gift cards, discount stacking & loyalty program setups → SEO optimization: structured data, canonical tags, JSON-LD schema → Store migration to Shopify from WooCommerce, Magento, BigCommerce == WORDPRESS & WOOCOMMERCE == → Custom WordPress theme development from scratch → Plugin development, hooks, filters & custom shortcodes → Gutenberg block development & Full Site Editing (FSE) → Advanced Custom Fields (ACF) & custom post types (CPTs) & taxonomies → WooCommerce store setup, extensions & payment gateways → WooCommerce Subscriptions, Memberships, Bookings & Product Bundles → WooCommerce B2B solutions & wholesale pricing → Multisite network setup, management & domain mapping → REST API & WP GraphQL (WPGraphQL) integrations → Headless WordPress with Next.js or Nuxt.js frontend → Elementor, Divi, Beaver Builder, Oxygen Builder advanced customization → WPML & Polylang for multilingual & multiregional sites → WP-CLI scripting, database optimization & server-side tuning → WordPress security hardening: Wordfence, iThemes, 2FA, SSL setup → Caching & performance: WP Rocket, LiteSpeed Cache, Redis, CDN setup → Managed WordPress hosting: WP Engine, Kinsta, Cloudways, SiteGround → Email deliverability: WP Mail SMTP, SendGrid, Mailgun, Amazon SES == DESIGN & UX == → Figma wireframes, prototypes, component libraries & design systems → Adobe XD, Photoshop & Illustrator for visual assets → Conversion Rate Optimization (CRO) & A/B testing → Mobile-first, responsive design across all breakpoints → Core Web Vitals optimization (LCP, INP, CLS) → Accessibility compliance (WCAG 2.1 AA) → Landing pages & sales funnels engineered to convert → UX audits, heatmap analysis & session recording review → Brand identity integration & design consistency across pages == INTEGRATIONS & APIs == → Payment gateways: Stripe, PayPal, Authorize.net, Square, Klarna, Afterpay → Shipping: ShipStation, EasyPost, Shippo, DHL, FedEx APIs → CRM: HubSpot, Salesforce, Zoho, Pipedrive integrations → Email marketing: Klaviyo, Mailchimp, ActiveCampaign, ConvertKit → Analytics: Google Analytics 4, Meta Pixel, GTM, Hotjar, Microsoft Clarity → ERPs & inventory: Cin7, Brightpearl, SKUvault, QuickBooks integrations → Marketplace sync: Amazon, eBay, Etsy via Codisto, LitCommerce == TECH STACK == Languages: PHP · JavaScript (ES6+) · jQuery · HTML5 · CSS3 · SASS/SCSS · Python (scripting) Frameworks: React · Next.js · Vue.js · Nuxt.js · Node.js · Tailwind CSS · Bootstrap Shopify: Liquid · Hydrogen · Oxygen · Storefront API · Admin API · Shopify CLI · Theme Kit WordPress: WP-CLI · WPGraphQL · REST API · Composer · Webpack · Vite Databases: MySQL · PostgreSQL · Redis · Elasticsearch DevOps: Git · GitHub · Bitbucket · Docker · CI/CD pipelines · Linux/SSH · cPanel · Plesk Design: Figma · Adobe XD · Photoshop · Illustrator · Canva Pro Analytics: GA4 · GTM · Hotjar · Microsoft Clarity · Looker Studio Why clients keep coming back: I don't just build what you ask for. I ask the right questions to build what your business actually needs. I communicate clearly, meet deadlines, and treat every project like it's my own business on the line. My work has helped small businesses, ecommerce brands, agencies, and enterprise clients generate real revenue, not just a good-looking site. Let's build something that performs. Message me and let's talk about your project.

✨ Top-rated Full Stack Developer with a 100% Job Success Rate 🚀 Hello there! I'm Java, a passionate Full Stack Developer with a stellar reputation on Upwork. With a 100% Job Success Rate and consistent 5-star ratings, I bring a wealth of experience and expertise to every project. 📈 Let's Build Something Great: I'm ready to bring my expertise to your project. Whether you need a new website, web application, or want to enhance your existing platform, let's discuss your goals and how I can help you achieve them. 🛠️ Skills Highlights: Frontend: Vue.js, React, Nuxt.js, Inertia.js, jQuery, HTML, CSS, Javascript and more Backend: Laravel, PHP, Express.js and more CSS Frameworks: TailwindCSS, Bootstrap and more 🌟 Why Choose Me: 1. Proven Expertise: Over 6 of experience in Full Stack Development, delivering top-notch solutions. 2. Client Satisfaction: 100% Job Success Rate and numerous 5-star reviews from satisfied clients. 3. Versatility: Proficient in a wide range of technologies, ensuring adaptability to your project needs. 4. Efficient Communication: Clear and prompt communication to keep you informed at every stage. 🔧 Services I Offer: ‣ Web Application Development ‣ Responsive Website Design ‣ SPA Development ‣ API Integration and Development ‣ E-commerce Solutions ‣ Custom CMS Development 🧑‍💻 Recent Projects: 1. TalentsBeyond: Custom website and admin dashboard for displaying data to B2B customers. Website includes the full integration of Stripe payment method. Tech stack: Laravel/VueJs/MySQL. 2. Appvibe: Custom website and top-notch web applications built for Atlassian and monday.com marketplaces. Development includes full implementation of Strapi CMS, setup and implementation of Metabase. Tech stack: Laravel/React/Vue.js/Nuxt.js/MySQL/MongoDB/GraphQL. 3. Agency TBA: Custom website and private Android mobile application for a retail audit agents. Tech stack: Laravel/Blade Livewire/MySQL/AndroidStudio Java 💬 What Clients Say: 1. Job Title: Software to check whether a person changed job on LinkedIn Testimonial: "Excellent communication and excellent work quality! Javanshir is willing to go the extra mile to ensure the quality of the work!! Well done!" 2. Job Title: Update algorithm functions for point distribution on PHP platform Testimonial: "Excellent algorithm execution. great team player." 3. Job Title: build API connection to Stripe for my website Testimonial: "Javanshir was a pleasant and honest freelancer. He worked quickly to help troubleshoot our problem and resolved an issue for us that other developers had quoted us hundreds of dollars for. Perfect English and very responsive to messages. Highly recommend. Thanks a lot for your quick work!" 4. Job Title: Detect Browser and if extensions are installed. Redirect depending on Rules Testimonial: "Great work and great communication! Got only a small task but very happy with the result. Will hire him again!" 5. Job Title: Expert PHP developer to automate a process of getting PHP files in a project Testimonial: "Amazing Developer, and can understand your requirements very fast, and propose the suitable solution to make everything working properly. Very happy and satisfied to work with Javanshir."

🙋‍♂️ With over 10+ years of programming experience and more than 7+ years dedicated to Software Development and Information Technology, I have honed my expertise in a range of critical areas including Web and AI Application or Solution Development, Database Management, Server-Side Programming, and Software Management. 🧑‍💻 My approach to coding emphasizes maintainability and scalability throughout the entire software development lifecycle. When crafting web-based applications, I prioritize user experience as a paramount concern, ensuring that user interfaces are not only trendy and modern but also maintain a high level of professionalism. This dedication to user-centric design is where my proficiency in Front-End development shines, enabling me to deliver seamless and exceptional user experiences. On top of my expertise, I use Github Copilot , which makes my work crazy fast and smart, for quick client delivery. 🕵️‍♂️ Moreover, I specialize in efficiently managing data servers to ensure secure and smooth communication between the front-end application layer and the back-end layer, contributing to the overall robustness and reliability of software solutions. 🛎️ My Services 🔹 Small to Large Scale Web and AI application development from Scratch (N-Tier, Monolithic, Microservices) 🔹 AI application or solution development using Foundation Model (OpenAI API integrations, ChatGPT, DeepSeek or similar), text embedding, PineCone vector Database implementation for RAG (includes text and image training) or similar application. Custom AI chatbot, AI Agent or Knowledge-base development. Video tools using Veo 3, Sora, Kling AI or similar APIs. Go all Microsoft with Azure - OpenAI, AI Search, Vision AI, Custom Vision, Cosmos DB, Blob Container 🔹 Front-End Development using Vue.js (Vue 2 or Vue 3, HTML, CSS, ES6, TypeScript) 🔹 UI/UX or Prototype design using Figma 🔹 Figma design to Page development using HTML, CSS, JS or Vue.js 🔹 Responsive UI development for all screen sizes like desktop, mobile, tablet etc. (pixel perfect) 🔹 API integrations in the Front-End using AXIOS / Fetch or other. 🔹 Back-End API development using Node.js, Express.js, JWT for Security (Rest API) 🔹 Entire database development and management using MS SQL / MySQL / Firebase / Mongo 🔹 Automated / End-to-End Tests for any Website or API, using TestCafe (JavaScript framework) 🔹 Load / Stress test of API or Website using Octoperf, Kibana and Grafana 🔹 Any kind of Management System, E-Commerce, Social Media, or totally Custom Software Development. 🔹 Research and Develop any AI, particularly Machine Learning, based application or product 🔹 Data Visualization, Big Data analysis and Report generation from User or Business data 🔹 Deploying / Hosting web application using Amazon Web Services (AWS) or Custom 💼 Expert In 🔹 Front End: Vue 2 & 3, Nuxt, TypeScript, Axios, VUEX, Pinia, Bootstrap, Vuetify, Quasar, jQuery. 🔹 Back End / Server: Node.js, AWS (EC2, S3, Lambda), Express.js, GraphQL, CI/CD (Jenkins). 🔹 AI: OpenAI API integrations, ChatGPT, DeepSeek, Grok, Gemini or similar LLM usage, RAG operations, knowledge-base using PineCone vector database, AI chatbot or agent development. Azure - A. OpenAI, A. AI Search, A. Vision AI, Custom Vision, A. Cosmos DB, A. Blob Container 🔹 Database: MySQL, Firebase, MS SQL, PineCone (vector database) 🔹 Design Tools: Figma, Adobe XD, Adobe Photoshop, Adobe Illustrator. 🔹 Project Management Tool: Bitbucket, GitHub, Jira, Azure DevOps, MS Teams, Trello. 🔹 Other: ChatGPT or any LLM, Knowledge Base, NLP, Artificial-Intelligence based web application development. 🎓 Education 🔹 Master's Degree in Computer & Electrical Engineering, Canada. (2 yrs) 🔹 Bachelor's Degree in Computer Science & Engineering, Bangladesh. (4 yrs) Feel free to ping 👋 me on Upwork to discuss ideas. I am sure I can help you out with a Software Solution. If it doesn't match up, we can always go our own directions.