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Bangladesh
$23/hr
100%
Job Success
Available now
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Architecture That Scales. AI That Works.
With 12 years of experience in system design and full-stack engineering, I help businesses bridge the gap between experimental AI scripts and robust, production-grade applications. I don't just bolt on AI features; I architect secure, distributed, multi-tenant systems where AI is integrated as a core, scalable component from day one.
If you need a system optimized for performance, maintainability, and security from the first line of code, you're in the right place.
Core Expertise:
✅ System Design & Microservices: I design distributed architectures that don't bottleneck under pressure. This includes implementing event-driven patterns with Apache Kafka for high-throughput messaging and managing complex data lifecycles across MongoDB, PostgreSQL, and Graph databases.
✅ Agentic AI & Orchestration: Building stateful, multi-agent systems using LangGraph to handle complex, dynamic logic flows. As an early adopter of the Model Context Protocol (MCP), I leverage FastMCP to build high-performance servers that connect LLMs safely to your secure enterprise data.
✅ LLM Engineering & Optimization: Moving beyond basic prompting. I focus on the heavy lifting: optimizing RAG pipelines, managing LLM encodings (tokenization and efficiency), and fine-tuning context windows to balance high accuracy with cost-efficiency.
✅ Security & DevOps: Treating AI and MCP security as a first-class citizen, not an afterthought. My development workflows are rooted in Agile principles and backed by robust CI/CD pipelines, ensuring deployments are fast, automated, and secure.
💻 Languages & Frameworks: Python, Go, Java (Spring Boot), TypeScript/JavaScript (Node.js, React, Angular), PHP (Laravel).
🧠 AI Ecosystem: LangGraph, FastMCP, LLM Encodings, RAG Pipelines, Agentic Workflows.
🗄️ Data & Streaming: Apache Kafka, MongoDB, PostgreSQL, Vector Databases, Neo4j (Graph).
🛡️ DevOps & Security: AI/MCP Security, CI/CD, Docker, Agile Methodologies.
🤝 Let’s Build Something Robust
I am most effective when untangling complex problems that require a deep, holistic understanding of how entire systems interact. Whether you are looking for a senior partner to design a secure AI ecosystem from scratch or you need to scale a legacy application into a modern, distributed architecture, let's talk.
✅Available for:
🔹 Architectural Audits
🔹 System Design Consultations
🔹 Full-Scale Development
Rouf A.
has worked
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$15/hr
100%
Job Success
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I help businesses build scalable WordPress and Shopify solutions with powerful CRM integration so your website doesn’t just look good, it works efficiently behind the scenes.
With strong experience in custom development and API integrations, I specialize in connecting websites with Zoho CRM to automate workflows, sync data, and reduce manual work.
What I can help you with:
1) Custom WordPress themes, plugins & WooCommerce solutions
2) Shopify 2.0 theme customization & custom app development
3) Zoho CRM integrations (leads, customers, orders, automation)
4) Third-party API integrations & payment gateways
5) Performance optimization, bug fixing & technical troubleshooting
Real-world experience that sets me apart
I’ve worked in remote technical support teams (L1–L3), supporting live products and marketplaces.
This means:
I don’t just build features I build stable, support-ready systems
I can quickly diagnose and fix complex issues
I understand how real users interact with your product.
How I work
1) Clean, scalable, and maintainable code
2) Clear communication and fast turnaround
3) Focus on performance, reliability, and long-term value
Let’s work together
If you need a developer who can handle both development and complex integrations while ensuring everything runs smoothly long-term let’s discuss your project.
$30/hr
100%
Job Success
$300K+ earned
Available now
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Senior WordPress developer with 12+ years of experience and $300k+ earned on Upwork.
I help businesses build, fix, migrate and maintain WordPress websites, WooCommerce stores and custom plugins. My strongest area is taking over existing WordPress projects: understanding old code, fixing bugs, improving architecture, integrating APIs and making the site easier to manage.
Main work I do:
- Custom WordPress plugin development and maintenance
- WooCommerce customization, checkout, carts, pricing, subscriptions and integrations
- ACF-based custom themes and admin-friendly content structures
- Elementor websites, custom widgets, responsive fixes and performance cleanup
- WordPress REST API, AJAX, custom post types, taxonomies, user roles and metadata
- Figma / PSD to WordPress with clean responsive layouts
- Website migrations, broken site recovery, hosting moves and plugin conflict debugging
- Gutenberg blocks, React-based WordPress interfaces and existing plugin support
I am comfortable joining existing projects, reading unfamiliar codebases, working with Git, staging environments and client requirements. I do not need hand-holding, but I ask practical questions when something affects the result, SEO, performance or maintainability.
Recent relevant work includes custom plugins, Gutenberg blocks, WooCommerce projects, ACF multilingual websites, Elementor builds, WordPress migrations and API integrations.
$50/hr
100%
Job Success
$100K+ earned
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Are you looking to automate your business processes, integrate your systems, or fix a critical backend issue that’s slowing you down?
I help businesses eliminate manual work, streamline operations, and build scalable backend systems using AI, automation, and robust engineering practices.
With 12+ years of experience and 5,000+ hours on Upwork, I don’t just write code — I take full ownership of your system, from architecture to deployment.
🚀 What I Can Help You With:
✔ AI-powered automation (chatbots, workflow automation, smart search)
✔ CRM automation & integrations (Zoho, Salesforce, Twilio)
✔ Stripe payment systems (subscriptions, checkout, custom flows)
✔ Backend systems (Laravel, APIs, database design)
✔ Fixing complex bugs, performance issues, and broken systems
💡 Why Clients Choose Me:
End-to-End Ownership
I handle everything — planning, development, testing, and deployment.
Automation-First Thinking
I focus on reducing manual work and increasing efficiency using modern tools.
The “Fixer” Mindset
Clients come to me when systems break, scale fails, or others can’t solve it.
Security & Performance Focused
Your system will be fast, secure, and built to scale.
🧠 Tech Stack & Expertise:
Laravel, PHP, APIs, AWS (EC2, S3, RDS),
Stripe, Zoho CRM, Salesforce, Twilio,
AI integrations & automation workflows
🎯 My Goal:
Build systems that save you time, reduce costs, and grow with your business — with zero downtime and clean, maintainable code.
Let’s discuss your project and identify where automation or AI can make the biggest impact.
Deepak K.
has worked
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$22.5/hr
100%
Job Success
$40K+ earned
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I'm a Top Rated Shopify and Shopify Plus developer on Upwork with 7+ years of hands-on experience building, fixing, and customizing Shopify stores for DTC brands across the US, UK, EU, and beyond.
Whether you need a new custom section, a Figma design turned into a working Shopify theme, a stubborn bug fixed, or your store sped up, I can get it done properly the first time.
Most clients come to me because their last developer left something half finished, or they need a custom feature their theme does not support out of the box. I write clean Liquid code, follow Shopify 2.0 best practices, and make sure everything I build is editable from the theme customizer so you're not stuck calling a developer every time you want to change a heading or swap an image.
I have also managed multiple Shopify stores at once for a global distributor, so I am comfortable with long term work, not just one off tasks.
What I can help you with:
Figma to Shopify theme development (fully responsive, pixel close to design)
Custom Shopify and Shopify Plus sections and blocks with full theme editor settings
Shopify bug fixes (theme, apps, cart, checkout, third party scripts)
Shopify speed optimization for better Core Web Vitals and SEO score
Product page customization (variants, color swatches via metafields, upsells, custom tabs, live price update on variant change)
Cart page and cart drawer customization, including apps like UpCart
Custom upsell logic (checkbox auto add to cart using the Cart API)
Password protected collections with hidden products and a fully themeable UI
Bundle pages and bundle product templates with tab based collection scroll for higher CRO
Custom homepage sliders, headers, and footers built from scratch or from a reference store
Blog page redesign and theme customizer settings to hide/show blog elements
Shopify Flow setup
Shopify CLI workflow with GitHub or GitLab integration
Cleaning up spammy code, unused scripts, or tracking pixels slowing down your store
Tech I work with daily:
Shopify Liquid, Shopify APIs (Storefront, Admin, AJAX, Section Rendering), JavaScript, jQuery, Ruby on Rails, HTML, CSS, SCSS, Metafields, Shopify CLI, GitHub, GitLab.
A few real things I have built recently:
Built a full Shopify store for a Netherlands based meat brand including a custom Make Your Own Box collection page where customers build their own bundle
Added a custom upsell on a product page using metafields and APIs for a nasal dilator brand, a project the client said most developers would have given up on
Built a collections bundle page with tab navigation, where customers add products from multiple collections in one session. It lifted the store's conversion on collection pages
Fixed Google Places API on a product page for an NFC review card store after the previous developer couldn't solve it
Removed spammy Google Ads code that was injected into a client's theme and was hurting their PageSpeed score
Built a password protected collection system where the merchant can create unlimited secret collections, control the UI from the customizer, and keep all those products hidden from site search
How I work:
Simple and honest. If a task will take longer than expected, I tell you. If your idea will not work the way you pictured it, I tell you that too and suggest a better path. No disappearing, no over promising, no broken code left behind.
Send me the details of your project and I will reply with a clear plan, timeline, and a fair price.
Hafiz
Hafiz Fahad M.
has worked
.
$100/hr
100%
Job Success
$300K+ earned
Offers consultations
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Shopify Developer specializing in AI apps, conversion optimization, and custom backend systems.
If you're looking for a Shopify developer who can actually increase conversion and build AI-powered systems, you're in the right place.
⭐ Top Rated Plus with $300K+ earned, 200+ projects, and a 100% Job Success Score. I’ve built Shopify apps, AI tools, and backend systems used by brands with millions of customers.
RESULTS I’VE DELIVERED
+20% conversion lift using AI product recommendation systems
Mobile PageSpeed from 35 to 90+ (LCP reduced from 8s to under 2s)
Shopify apps approved on the public App Store
Automated workflows saving hours of manual work
WHAT I CAN BUILD FOR YOUR STORE
AI + SHOPIFY SYSTEMS
AI chatbots and product recommendation engines
AI-powered product finders and personalization systems
FastAPI + LLM integrations connected to Shopify APIs
WhatsApp automation and notification systems
CUSTOM SHOPIFY DEVELOPMENT
Shopify apps (public and private)
Custom themes using Liquid
Advanced API integrations (Admin API, Storefront API, GraphQL)
SCALING & ADVANCED SETUPS
Headless commerce (Hydrogen + Next.js)
Shopify Plus migrations and cross-domain setups
Subscription systems and B2B wholesale portals
WooCommerce and Magento to Shopify migrations with SEO preservation
WHY CLIENTS HIRE ME
Most Shopify developers use AI tools. I build them.
I don’t just develop stores. I build systems that increase conversion, automate operations, and scale with your business.
I also run my own e-commerce products, so I understand what actually drives revenue, not just code.
TECH STACK
Shopify, Liquid, Hydrogen, GraphQL, Storefront API, Admin API
Python, FastAPI, Django, Node.js, React, Next.js
Postgres, MongoDB, AWS, DigitalOcean
LET’S TALK
Send me your project details, timeline, and budget.
I’ll review everything and reply with a clear plan, not a generic response.
Karan
Karan G.
has worked
.
$85/hr
100%
Job Success
Available now
Offers consultations
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👋 Hi, I’m a 🚀 🚀 🚀 🥇Top Rated Plus Full-Stack Developer 🚀 🚀 🚀 with over 17 years of hands-on experience building powerful, user-friendly web and mobile applications — from idea to launch and beyond.
I’ve successfully completed 🔥 20+ long-term projects 🔥🔥🔥 on Upwork, partnering with clients from around the world to deliver solutions that are not only technically sound but aligned with real business goals.
Whether you’re a startup looking for an MVP, or an established company needing to scale and refactor a legacy system — I’m here to help make it happen, smoothly and efficiently.
Here’s what it’s like working with me:
🧩 I figure things out. Fast. From legacy spaghetti code to shiny new stacks — I dive in, untangle, optimize, and deliver.
📢 I communicate like a human. You’ll never get vague tech talk from me. I keep you in the loop, explain the "why" behind choices, and always deliver with clarity.
🛠️ Full-stack is my comfort zone. Whether I’m building snappy UIs or crafting efficient backends, I move comfortably across the stack — and make it all work together like a dream.
💡 I care about what we’re building. Your goals are my goals. I’ll offer ideas, challenge assumptions, and help make smarter decisions (not just code what’s asked).
🤹 I’m independent but team-friendly. I play well with others, but I’m also happy to take full ownership when needed and just get things done.
🔄 Always learning, never stuck. New tools, new frameworks, weird edge cases — bring it on.
Long story short: I love building things that are useful, clean, scalable, and even a little fun. If you're looking for a dev who’s reliable, thoughtful, and maybe even a little witty — let’s connect!
🚀 What I Specialize In
🤖 AI & RAG Development
From simple prototypes to production-ready AI features — I build systems that reason over real data.
🧠 RAG: Retrieval-Augmented Generation pipelines (grounded, source-aware answers)
📚 Frameworks: LangChain, LlamaIndex
🐍 Backend: Python (document ingestion, chunking, embeddings, retrieval)
🖥️ UI: Gradio (interactive, user-friendly interfaces),
🧱 Practical, maintainable AI architecture
💻 Web Development
From elegant interfaces to rock-solid server logic — I cover the full web stack.
🎨 Frontend: React, Next.js, Redux, Hooks, TypeScript, Tailwind, Bootstrap
🧠 Backend: PHP, Node, ASP.NET MVC (C#), Java Spring Boot, REST APIs, Python
🗄️ Databases: MySQL, PostgreSQL, MSSQL, NoSQL
🧱 Clean architecture, reusable components, and scalable codebases
📱 Mobile Development
Creating smooth, responsive apps that work beautifully on every device.
⚛️ Cross-platform: React Native (iOS & Android)
🍎 Native iOS: Swift, Objective-C
🤖 Native Android: Java, Kotlin
🛠️ Focused on great UX, offline features, and performance
🧩 Zoho Development
Tailoring business solutions that work the way you do.
⚙️ Zoho CRM: Custom workflows, functions, automations
🛠️ Zoho Creator: Internal tools and app development
🧰 Tools & Technologies I Work With
I’m comfortable across the entire stack — from frontend animations to backend architecture — and I love learning new tools when the job calls for it. Here's what I work with regularly:
🎨 Frontend & UI
⚛️ React, Next.js, React Native, Redux, Hooks, Context API
🧠 TypeScript, JavaScript (ES6+), JSX
💅 Tailwind CSS, MUI, Styled Components, Bootstrap, Sass
🧱 HTML5, CSS3, Responsive Design, Cross-browser compatibility
🌍 Internationalization (i18n), Accessibility (a11y), Lazy loading, Code splitting
🔧 Backend & Server-Side
💻 PHP (Laravel, Symfony), ASP.NET MVC (C#), Java (Spring Boot), Python, Django, Node.js
🛠️ RESTful APIs, GraphQL, WebSockets, OAuth2, JWT
📦 Microservices, Monolithic apps, Serverless functions
🧱 Clean Architecture, SOLID principles, Domain-Driven Design
🗄️ Databases & Storage
🐬 MySQL, PostgreSQL, MSSQL
🧪 MongoDB, Firebase, Redis, Realm
🧾 ORM tools: Entity Framework, Hibernate, NHibernate
🔍 Query optimization, indexing, schema design
🛠️ DevOps & Tools
🐳 Docker, Docker Compose, Git, GitHub/GitLab, CI/CD pipelines
☁️ AWS (EC2, S3, Lambda), Firebase, DigitalOcean
📊 Monitoring & Logs: LogRocket, Sentry, New Relic
🧪 Unit Testing, Integration Testing, Jest, Mocha, JUnit, NUnit
🧩 Zoho & Business Automation
⚙️ Zoho CRM, Zoho Creator, Zoho Reports
📱 Mobile Development
📱 React Native (iOS/Android hybrid apps)
🍏 Native iOS: Swift, Objective-C
🤖 Native Android: Java
🎯 App Store & Google Play deployment, OTA updates, deep linking
🧠 Other Tools I Use Often
🗺️ Google Maps API, Chart.js, D3.js, Moment.js
🧩 Smarty, Handlebars, Sencha/ExtJS
🔄 JSON, XML, CSV, third-party API integration
🧪 Postman, Swagger, Figma (dev handoff), Trello, Jira, Slack
🌐 Cross-platform testing tools & responsive UI debugging
📅 𝗕𝗼𝗼𝗸 𝗮 𝗽𝗮𝗶𝗱 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 if you need specific advice or want to talk through a tech decision.
📩 Or just send me a message for a no-cost, no-pressure chat about your project — always happy to explore ideas!
Viktor V.
has worked
.
$50/hr
100%
Job Success
$10K+ earned
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As a seasoned Full Stack Web Developer with over 6 years of commercial experience, I bring creativity and technical expertise to projects of all scales. I am passionate about developing robust, scalable web applications and have a proven track record in delivering high-quality solutions.
🚀 My Technical Skills:
✔ PHP8, Laravel
✔ MySQL Database, MongoDB, Pinecone, Pgvector
✔ Agentic AI Development | AI Agents, Tool Calling, Function Calling, Multi-step Reasoning
✔ RAG Systems | Vector Embeddings, Semantic Search, Knowledge Base Integration
✔ LLM Integrations | OpenAI, Claude (Anthropic), Gemini, Laravel AI SDK
✔ ReactJS/NextJS (w/ Redux), VueJS (w/ VueX)
✔ Stripe, PayPal, Paddle
✔ AI Chatbot (OpenAI/Claude/Gemini)
✔ GitHub, GitLab
✔ Jira, Trello, Slack, Basecamp, Asana
✔ ChatGPT-4 API, RestAPI, Twillio, WebRTC, Zoom API
✔ GeoLocation, Google Map API
✔ Social Media Login, Social Media Connect to fetch live data
✔ AWS, Azure
✔ Mobile Responsive Website with cross-browser compatibility
✔ Languages: PHP, HTML5/CSS3, Javascript, ReactJS, Redux, NextJS, VueJS, VueX, Bootstrap, jQuery, Ajax, SCSS, SAAS, Tailwind, etc.
eCommerce: Shopify, eCommerce, WooCommerce, multivendor ecommerce, Wholesale, B2B, B2C, Auction,
✔ Domains: Marketplace with multiple user types, Real estate, job portal, dating platform, eLearning platform, fitness, crowdfunding, service seeker, and service provider platform
✔ I follow Agile methodologies and Scrum
I am committed to delivering top-tier work and prioritize meeting deadlines and ensuring client satisfaction. My expertise spans various domains including Website development, Framework integration, Responsive, Web Applications, APIs, Web Services, and Open Sources.
Other than that I offer free support also depending upon the type and budget of the project.
Seeking an actual contributor who goes beyond what’s required to make the project successful?
Let's connect and explore the possibilities – your next big breakthrough is just a conversation away.
$40/hr
100%
Job Success
$300K+ earned
Available now
Offers consultations
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With 15+ years of hands-on experience in web, mobile, and cloud development, I have delivered 120+ successful projects across the globe — earning 100% Job Success Score and Top Rated Plus status on Upwork.
I am the IT Manager and Lead Developer at AddWeb Solution, a top-rated Upwork agency. I specialize in building scalable, high-performance digital products using modern technologies.
WHAT I BUILD:
- Web Applications: Laravel, PHP, WordPress, Magento, Shopify, React, Vue.js, Node.js
- Mobile Apps: Flutter, React Native (iOS and Android)
- Cloud and DevOps: AWS, Google Cloud, Docker, CI/CD pipelines
- CRM and ERP Systems: Custom solutions, Zoho, Salesforce integrations
WHY CLIENTS CHOOSE ME:
- 300K+ earned on Upwork with 120+ completed contracts
- 11,000+ hours of proven delivery
- End-to-end ownership — from architecture to deployment
- Clear, proactive communication throughout the project
- Agile methodology with on-time, on-budget delivery
I have also worked extensively with design and project management tools including Photoshop, Figma, GitHub, JIRA, Trello, Asana, Basecamp, and more.
Whether you need a new product built from scratch, a legacy system revamped, or a dedicated offshore development team — I bring the expertise, reliability, and leadership to make it happen.
Available Monday to Sunday. Let us discuss your project today.
Associated with
ADDWEB SOLUTION PRIVATE LIMITED
$1M+
earned
$35/hr
100%
Job Success
Available now
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I’m Hiro, a Melbourne-based Senior Full-Stack & WordPress Developer with over 20 years of experience building scalable web applications, business systems, and high-performance websites.
I help businesses design, develop, and optimise custom digital solutions - from complex web applications and APIs to WordPress platforms and eCommerce systems.
Full-Stack Development Expertise:
I architect and build secure, scalable applications using modern technologies, including:
Backend: PHP, Laravel, Node., Express
Frontend: React, Next, Vue., Nuxt., Angular
Databases: MySQL, MS SQL Server, MongoDB
APIs & Integrations: REST APIs, payment gateways, Mailchimp, third-party services
DevOps & Hosting: AWS, VPS, CI/CD pipelines, GitHub Actions, SSL, production deployments
I specialise in:
Custom CRM & workflow systems
Business process automation
Secure API development
Performance optimisation
Scalable system architecture
WordPress Development Expertise:
Beyond applications, I deliver professional WordPress solutions, including:
Custom theme & plugin development
WooCommerce stores
API integrations
Performance optimisation & security hardening
Elementor / custom block development
Hosting, migrations, and maintenance
I don’t just build websites - I build systems that support real business operations.
How I Work:
Clear communication
Clean, maintainable code
Scalable architecture
Business-focused solutions
Reliable delivery
I take time to understand project goals and deliver solutions that are technically strong and aligned with long-term business growth.