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Nikola A.
$45/hr
100% Job Success
$200K+ earned
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I've been building web apps since 2011. I'm on Shopify since 2014 - custom themes, embedded apps, Shopify Plus stores, and everything in between. With 10+ years of hands-on experience and a track record of leading long-term, high-value projects, I bring both deep technical expertise and the reliability that comes with senior-level ownership. My core focus is Shopify in its full depth. Shopify Development: Liquid · Storefront & Admin API (REST + GraphQL) · App Bridge · Polaris · Theme Extensions · Checkout Extensibility · Metafields & Metaobjects · Section Rendering API · Markets & Geo-IP · Shopify CLI / GitHub workflow · OS 2.0 · Dawn · Hydrogen (Headless) App & Backend Development: Embedded Shopify apps · Node.js / Fastify · PHP / Symfony · Python / Flask · REST APIs · Webhooks · MySQL · PostgreSQL Frontend & Performance: JavaScript (ES6+) · React · HTML5/CSS3 · Figma-to-Liquid · Core Web Vitals · LCP/CLS optimization · Three.js · Canvas API · Swiper.js · etc Beyond code, I understand what merchants actually need - fast load times, clean architecture, maintainable codebases and solutions that scale. I've worked across DTC and B2B stores, handling everything from greenfield theme builds to complex app integrations, performance overhauls, migration from WooCommerce, BigCommerce, Magento, and other platforms, and long-term maintenance. I'm available for full-time or part-time remote engagements. If you're looking for a senior developer who can own the technical side of your Shopify store or product - let's talk.
Niyati I.
$35/hr
100% Job Success
$5K+ earned
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Are you looking to turn a complex idea into a practical, production-ready product? I am a product builder and software engineer specializing in building AI-powered systems, automation tools, and responsive full-stack applications. Unlike developers who only build minimum viable demos, my focus is on engineering practical, user-friendly software that solves real-world challenges. From local-first desktop environments to robust web backends, I bring a structured approach to development using modern tech stacks. Here is what I bring to your project: → AI/ML & LLM Integrations • Prompt engineering, custom agentic workflows, and RAG pipelines using Google Gemini and Anthropic Claude. • Intelligent tool integration (OCR, speech-to-text, summarization, and PDF processing). • Developing offline-capable AI tools utilizing lightweight transformers and NLTK. → Full-Stack Web Development • Frontend: React, Next.js, Vite, Tailwind CSS, and Shadcn/UI for fluid, mobile-first interfaces. • Backend & Database: FastAPI, Node.js, Supabase, PostgreSQL, MongoDB, and Redis. • Integrations: Stripe payment gateways, Twilio SMS/communications, and third-party API hookups. → Desktop & Command Line Utilities • Native Windows application development using C# / WPF / .NET. • Cross-platform desktop apps built with Tauri (Rust/TypeScript). • CLI tools and background automation scripts in Python and Bash. ↬ Featured Projects from My Portfolio: • StudySage: An offline AI-powered note assistant with OCR, automatic quiz generation, and summaries. • PocketMC & MSM: Local-first Minecraft server management apps built for Windows (WPF/C#) and Android/Termux (Python/SQLite), featuring automated backups, crash protection, and tunnels (Ngrok/Playit). • Mighty Fines: A high-converting commercial platform built with Next.js, featuring legal checkout gates, Stripe webhooks, and Twilio SMS. I am focused on maintaining high code quality, building clean architectures, and iterating rapidly based on feedback. Let's jump on a quick call to discuss how we can build your next product!
Islam I.
$20/hr
100% Job Success
$2K+ earned
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Looking for a frontend engineer who understands systems — not just screens? I’m a Senior Frontend Engineer with 6+ years of experience building scalable SaaS interfaces, admin panels, and complex dashboard systems. I specialize in crafting structured UI architectures that are clean, maintainable, and performance-focused. My work is not about “making it look good.” It’s about building interfaces that: • Scale with your product • Stay consistent across modules • Feel intuitive and polished • Maintain performance under complexity • Support long-term growth without UI debt What I Build ✔ SaaS Web Applications ✔ Admin & Super Admin Dashboards ✔ Data-heavy Interfaces ✔ Internal Management Systems ✔ UI System Layers for existing products ✔ Design System–driven Frontend Architecture Technical Stack • HTML5 / CSS3 / Modern JavaScript • Component-driven architecture • Design tokens & scalable UI systems • Performance optimization • Responsive layout engineering • Clean Git workflow Experience with: • Vue / React environments • Laravel Blade integrations • Static → Scalable UI conversion • Pixel-perfect Figma implementation How I Work I focus on structure first. Before touching visuals, I ensure: • Spacing logic is consistent • Typography hierarchy is intentional • Components are reusable • CSS is structured (not messy overrides) • The system won’t break when new features are added I collaborate closely with backend teams to ensure seamless integration without frontend chaos. If you’re building or refining a SaaS product and need someone who understands UI architecture — not just styling — I’m ready to help.
Alec A.
$90/hr
100% Job Success
$100K+ earned
Available now
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Need a brand new website, an overhaul of your existing website, or just a few updates? Then let's talk. Whether you're an entrepreneur who needs a personal portfolio, a business owner who needs to strengthen their brand and services, or just somebody who has an idea that needs a web presence, I can handle it for you. I have years of experience developing using content management systems such as WordPress, Shopify, Squarespace, Webflow, and Wix, as well as sites built using just vanilla HTML/CSS/JS. I'm also fluent in PHP, which usually comes into play when I'm developing custom themes or plugins for WordPress. The technical stuff: JavaScript •React •Node.js •Vue.js •Typescript PHP •Laravel HTML/CSS •SCSS •SASS •Bootstrap Python CMS •WordPress •Shopify •Webflow •Wix •Squarespace
Ali A.
$60/hr
100% Job Success
$400K+ earned
Offers consultations
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👋 Hi there! I'm Ali Arshad, a Senior Software Architect with over a decade of experience in building high-quality, scalable web and mobile applications. I specialize in Javascript stacks. I'm well-versed in modern frameworks like Next.js and React. My expertise covers: 🌐 Next.js: Building server-side rendered applications and static sites ⚛️ React: Creating dynamic user interfaces and single-page applications 🔥 Angular: Developing robust front-end applications ☁️ SaaS Development: Crafting, deploying, and maintaining SaaS products 🤖 AI/ML: Leveraging OpenAI technologies for smart app enhancements 🗣️ Chatbot Building: Developing intelligent chatbots for various use cases 🔄 CI/CD: Setting up seamless CI/CD pipelines 📝 Project Management: Leading projects with Agile methodologies 👥 With experience leading teams and working on Upwork's engineering team, I bring a wealth of knowledge to any project. I have successfully completed over 90 projects on Upwork, all with 5-star ratings, demonstrating my commitment to excellence and client satisfaction. I’m dedicated to delivering exceptional results, fostering innovative solutions, and maintaining transparent communication. Let’s transform your vision into reality! Looking forward to collaborating...
VQode Solutions Pvt. Ltd.
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VQode Solutions Pvt. Ltd.
Syed Ali Mughees M.
$30/hr
100% Job Success
$200K+ earned
Available now
Offers consultations
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🚀 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐢𝐧𝐠 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐈𝐦𝐩𝐚𝐜𝐭 𝐰𝐢𝐭𝐡: 𝐏𝐲𝐭𝐡𝐨𝐧 | 𝐃𝐣𝐚𝐧𝐠𝐨 | 𝐅𝐥𝐚𝐬𝐤 | 𝐑𝐞𝐚𝐜𝐭 | 𝐎𝐩𝐞𝐧𝐀𝐈 | 𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧 | 𝐑𝐀𝐆 | 𝐋𝐋𝐌𝐬 | 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬 | 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐀𝐈 | 𝐂𝐨𝐦𝐩𝐮𝐭𝐞𝐫 𝐕𝐢𝐬𝐢𝐨𝐧 | 𝐍𝐋𝐏 | 𝐔𝐧𝐢𝐭𝐲 💼 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 | 𝐋𝐋𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 | 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 | 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐀𝐈 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐒𝐦𝐚𝐫𝐭 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐛𝐞𝐚𝐭𝐬 𝐛𝐢𝐠𝐠𝐞𝐫 𝐭𝐞𝐚𝐦𝐬. 𝐈 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐛𝐮𝐢𝐥𝐝 𝐀𝐈 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐰𝐨𝐫𝐤. I work as an AI Engineer and Full Stack AI Developer with 6+ years of experience, focused on building LLM-integrated systems, agentic AI workflows, and AI-powered SaaS platforms that automate decisions and scale efficiently across industries like healthcare, e-commerce, sports analytics, real estate, and logistics. I combine backend development (Django, FastAPI, Flask, PostgreSQL) with advanced AI systems (RAG, GPT-4, LangChain, Stable Diffusion) to deliver measurable results—not just prototypes. 🔹 𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱 🚀 AI Agents & Automation LangChain-powered intelligent agents to automate: * Customer support, onboarding, finance reporting, fraud detection * Integrated with n8n, LangGraph, and OpenAI Assistants API 📚 RAG & Enterprise Knowledge Systems * Retrieval-Augmented Generation pipelines using Pinecone, Qdrant, and ChromaDB * Context-aware querying across PDFs, documents, and enterprise data 🧠 Generative AI Applications * GPT-4, Claude, LLaMA 3, and Mistral-powered tools for market research, document generation, and multimodal chat interfaces * Integrated with voice (ElevenLabs), vision (YOLOv8, OpenCV), and text 📊 Document AI & OCR Systems * Tools for invoice parsing, contract summarization, and clause extraction * Using Azure Document AI, Google Vertex AI, and OCR libraries like Tesseract 🏥 Industry Solutions Delivered * AI Notetaker for healthcare visit transcription * Real-time pitch detection platform for baseball (SmartMitt.com) * RAG-based legal assistant for summarizing case law * QR-based restaurant ordering/payment system (Frie) 🛠 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐓𝐨𝐨𝐥𝐬 * AI/LLMs: GPT-4, GPT-4o, Claude, Gemini, LLaMA, BERT, LangChain, LangGraph * Frameworks: FastAPI, Flask, Django, Streamlit * ML/DL: PyTorch, TensorFlow, Keras, YOLOv5/v8, StyleGAN, DALL·E * Databases: PostgreSQL, MongoDB, Pinecone, ChromaDB, Qdrant * Cloud: AWS (S3, EC2, SageMaker), GCP (Vertex AI), Azure (OpenAI, Cognitive Services) * MLOps: Docker, Kubernetes, MLflow, GitHub Actions, RunPod * Frontend: React.js, Webflow, HTML/CSS ✅ 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞 * Top Rated Plus on Upwork | Delivered solutions for Dell, Nutanix, xiQ, and Turing * Enterprise-grade AI systems with real-world impact * Deep experience in LLM workflows and agentic systems * Focused on business outcomes and long-term value I am committed to: - 🚀 Delivering full-cycle solutions from concept to deployment. - ⭐ Providing high-quality, maintainable, and scalable web and mobile applications. - ⌚ Ensuring prompt and effective communication, with less than a 1-hour response time. - 👨‍💻 Offering unlimited revisions and lifetime maintenance for all applications developed, demonstrating a dedication to client satisfaction. 📞 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐒𝐭𝐚𝐫𝐭? Let's connect and bring your vision to life. With my comprehensive expertise, I promise to deliver robust and scalable solutions tailored to your needs, ensuring unparalleled digital success.
Didin N.
$30/hr
100% Job Success
$200K+ earned
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My Name is Didin I specialize in fixing and refactoring messy or poorly designed Laravel systems, especially APIs that are already running in production and cannot afford to break. I also capable to build frontend work using Vue, or React. I can deploy PHP/ Laravel project to self-hosted, AWS, DigitalOcean, VPS, or even shared hosting. I love using TDD integrated with Continues Integration such: Travis or bitbucket pipelines. And comfortable using git versioning control systems such: GitHub, GitLab, or bitbucket. Many of my clients come to me after working with previous developers where the system becomes difficult to maintain, unstable, or risky to update. My role is to take over those situations and turn them into stable, scalable, and maintainable systems without disrupting existing functionality. Over the years, I’ve handled real-world backend challenges such as POS systems, API integrations (including third-party platforms), order synchronization, and high-traffic applications. I don’t just write code, I make sure your system can safely evolve. # WHAT I CAN HELP YOU WITH: ✔ Fixing broken or unstable Laravel applications ✔ Refactoring messy or unstructured codebases ✔ Improving API design and maintainability ✔ Ensuring backward compatibility (no breaking changes) ✔ Debugging complex issues in legacy systems ✔ Optimizing performance and database queries ✔ API integrations (payment gateways, POS, third-party platforms) ✔ System architecture improvements for scalability # HOW I WORK I usually start with a quick system audit to understand the root cause of the problem and identify risks before making changes. From there, I provide a clear and safe plan to fix or refactor your system — ensuring improvements are made without breaking what already works. I focus on: ✔ Clean and maintainable code ✔ Safe deployment ✔ Long-term scalability # WHY CLIENTS WORK WITH ME ✔ 14,000+ hours on Upwork ✔ Proven experience handling real production systems ✔ Strong focus on stability and backward compatibility ✔ Clear communication and structured approach ✔ Able to work with existing/legacy code (not just new builds) # SKILLS ✔ PHP 5, PHP 7.x, PHP 8.x # Framework ✔ Laravel 5.x - 12.x ✔ Yii 1 & Yii 2 ✔ Codeigniter ✔ CraftCMS ✔ Inertia (React, or Vue are welcome) ✔ Livewire ✔ Lumen ✔ Sanctum ✔ OAuth (Passport) ✔ Cashier ✔ Nova ✔ Filament # API Integration ✔ RESTfull API ✔ Stripe (Mollie) ✔ Thuisbezorgd API ✔ UberEats API ✔ Google Map API ✔ Webhook ✔ FacebookAPI # Database ✔ Mysql /MariaDB ✔ PostgreSQL ✔ Sqlite ✔ MongoDB ✔ Redis ✔ Casandra # Testing ✔ PEST ✔ PHPUnit ✔ Selenium # AI Tools to boost productivity ✔ Claude AI ✔ Cursor ✔ Copilot ✔ ChatGPT # Cloud Server ✔ AWS (EC2) ✔ Plesk ✔ DigitalOcean ✔ BlueHost # Server ✔ Apache ✔ Nginx # JavaScript ✔ Vanilla JS ✔ jQuery ✔ Angular ✔ Vue: Vuex, Vuetify ✔ React: React-Redux, Redux-Thunk, Redux-Saga ✔ NextJS | NestJS | NuxtJs ✔ Webpack ✔ AlpineJS ✔ TypeScript # Other ✔ HTML5 ✔ CSS/ CSS3 ✔ LESS, SAAS, BEM ✔ Memcached ✔ Chrome Extension ✔ GIT or Subversion # API Docs ✔ Swagger (zircote) ✔ Blueprint API
Michael L.
$22.22/hr
100% Job Success
$2K+ earned
Offers consultations
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Most products aren't broken. They're just not smart yet. I'm a full-stack developer who specializes in one thing: taking existing products and adding AI that actually works in production. Not demos. Not "proof of concept." Shipped features. What that looks like in practice: → Chatbots that understand your users' context, not just their keywords → Document processing pipelines that replace hours of manual work → Semantic search that returns results clients actually want → Workflow automation via n8n that removes repetitive bottlenecks My background is 4+ years of full-stack development (Angular, NestJS, Node.js), now focused on AI integration and LLM-powered features. ━━━━━━━━━━━━━━━━━━━ WE'RE PROBABLY A GREAT FIT IF: ✅ You have a working product and want to add AI features — not rebuild from scratch ✅ You want someone who owns the backend API layer AND the AI logic ✅ You value clear communication over clever excuses WE'RE PROBABLY NOT A FIT IF: ✗ You need a solo developer to build a full product from zero in 2 weeks ✗ You don't have a clear scope I work best with defined deliverables STACK: AI/LLM: OpenAI API, Anthropic/Claude, LangChain, RAG, Pinecone, Prompt Engineering Backend: NestJS, Node.js, REST APIs Frontend: Angular, TypeScript, RxJS Automation: n8n, Make com, Zapier 100% Job Success Score. Top Rated. Tbilisi-based, EU & US time zones. Fast responder avg. under 4 hours. Message me and let's map out exactly where AI fits in your product.
Oleksandr P.
$25/hr
100% Job Success
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I take designs and build them out precisely – fast-loading and consistent across every device and browser. As a Front-End Developer with 6+ years of experience, I build everything from landing pages and marketing sites to complex applications – booking engines, client portals, property management systems, and more. What you get: ✅ Fast-loading, optimized websites – better user experience, higher conversions ✅ Your design, implemented exactly as intended – to working site without compromises ✅ Scalable, maintainable code – easy to expand as your product grows ✅ Consistent experience across all devices and browsers – desktop, tablet, mobile, Chrome, Firefox, Safari, Edge ✅ Custom interactions, booking flows, API integrations, or business logic – handled with JavaScript or custom WordPress plugins ✅ Clear communication, transparent progress, reliable delivery Technologies & Expertise: 🔹 JavaScript (ES6+) – clean, maintainable, high-performance code 🔹 HTML5, CSS3 / SASS / SCSS, Tailwind CSS – semantic, responsive layouts 🔹 Webflow – CMS collections, reusable components, interactions, custom scripts when the visual editor isn't enough 🔹 WordPress – custom themes and plugins (non-WooCommerce) 🔹 React – dynamic web apps, SaaS interfaces 🔹 Salesforce (LWC) – Experience Cloud portals and custom components 🔹 Design to Code – Figma 🔹 Integrations & Systems – Stripe payments, booking flows, API integrations, custom business logic 🔹 Animations – GSAP & CSS animations 🔹 Performance optimization – asset management, image optimization, lazy loading, caching strategies 🔹 SEO-friendly coding, cross-browser compatibility (Chrome, Firefox, Safari, Edge), responsive design across all devices 🔹 Git – version control and collaboration 📩 Message me today and let's get your project done.
Aleksa N.
$25/hr
100% Job Success
$50K+ earned
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👋 Hey there! I'm a front-end developer with 4+ years of experience, currently Top Rated and available to start right away. I love turning designs into clean, responsive websites utilizing the latest conventions of technologies like HTML, CSS (and SCSS), Svelte, Vue, TailwindCSS, React, and more. ✨ What I Do Best: I specialize in bringing design files (Figma, Adobe XD, etc.) to life with pixel-perfect, accessible, and fast-loading HTML/CSS. I care a lot about how things look and feel—and I always aim for a polished user experience. 🛠️ Tools & Tech I Work With: ● Clean, semantic HTML & modern CSS3 (SASS, SCSS) ● Tailwind CSS, Bootstrap 5 ● Svelte, Vue, React, JavaScript (ES6+), jQuery, Alpine.js ● HTML5 Canvas (Konva.js) ● Browser extensions (Manifest v3 & v2) ● WYSIWYG editors like Quill & TipTap ● Email templates that look great in all clients ● Git/GitHub for version control ● AI-enhanced dev tools (Cursor, GitHub Copilot) ● Familiar with design tools like Figma, XD, Photoshop, and Illustrator ● Good at finding and fixing tricky bugs 🐞 I'm reliable, detail-oriented, and committed to delivering high-quality work on time. I value clear communication and collaboration, and I take pride in making sure every project meets your expectations. Thank you for taking the time to view my profile—I’d be happy to discuss how I can support your next project!