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I build and maintain WooCommerce systems for online stores, with 21 years of PHP and WordPress experience. My focus is marketplace integrations: syncing WooCommerce with eBay and Amazon through their APIs to handle listings, inventory, and orders at scale. For the past 7 years I was the primary technical owner of a commercial WordPress plugin suite (WP-Lister for eBay, WP-Lister for Amazon) used by hundreds of stores to manage marketplace sync. That's why my Upwork activity has been quiet: I was retained directly by one client for long-term work. That contract has ended, and I'm back on the platform looking for new projects. What I bring: - 16+ years building commercial WooCommerce/WordPress plugins, not just custom sites - Deep hands-on experience with the eBay Trading API and Amazon SP-API, including the 2025 migration from XML feeds to JSON Listings Feeds - Led annual Amazon security audits and migrated a full plugin codebase to HPOS (High-Performance Order Storage) compatibility - 10+ years handling technical support directly with end users, so I write code that holds up in production, not just in a demo - Comfortable working distributed since 2005, across time zones If you need someone who can build a custom WordPress site, fix a broken WooCommerce store, or connect your store to a marketplace API, I can help.

I help businesses build, improve, and scale WordPress and WooCommerce platforms that need more than a theme installation -- custom plugins, API integrations, complex workflows, performance engineering, and reliable long-term support. 240+ Upwork jobs | 10,300+ hours | $300K+ earned | 100% Job Success | Top Rated Plus For 11+ years, I have worked with startups, established businesses, and enterprise teams on high-traffic websites, eCommerce systems, OTT products, progressive web applications, custom dashboards, and business-critical integrations. What I can help you build - Custom WordPress websites and scalable CMS architecture - WooCommerce stores, custom checkout logic, pricing rules, and advanced workflows - Custom WordPress plugins and third-party API integrations - CRM, ERP, payment gateway, Klaviyo, Salesforce, and business-system integrations - WordPress performance optimization, Core Web Vitals, security, and high-traffic preparation - Headless WordPress with React or Next.js - Progressive web applications, dashboards, portals, and authenticated user systems - Complex migrations, redesigns, multilingual websites, and ongoing technical ownership Selected direct-client work - Amazon: Built automated pricing logic that adjusts product prices according to order volume and defined performance thresholds. - National Geographic: Developed an OTT platform and supporting web platform (Dubai). - Virgin Megastore: Developed the eCommerce web platform (Dubai). - Dubai Police: Designed the complete Figma experience for a centralized CCTV application connecting government-registered public cameras in one system. - ADTV: Designed and developed the web and OTT platform experience. Recent project patterns My recent Upwork work includes a multi-phase React PWA engagement exceeding $20K, WordPress and API integration projects, advanced WooCommerce customization, automated AI/RSS publishing workflows, custom plugins, eCommerce platforms, high-traffic testing, performance optimization, and long-term website support. Clients repeatedly describe our delivery as reliable, collaborative, professional, detail-oriented, and solution-focused. Several recent clients have continued into additional phases or returned for new work. How delivery works I personally lead discovery, technical planning, architecture, and client communication. You have one accountable technical owner throughout the engagement. When a project needs additional capacity, I bring in the appropriate Webvoltz specialists across WordPress, UI/UX, React/MERN, QA, and DevOps under my direct supervision. This gives you the attention of a senior technical lead with the execution capacity of an established team—without fragmented communication. What you receive - Clear scope, milestones, and technical recommendations - Maintainable code and full source-code ownership - Regular progress updates and transparent communication - Testing across devices, browsers, and critical user flows - Deployment support, documentation, and handover - 30 days of post-delivery support for agreed project work Best fit: WordPress, WooCommerce, platform, and integration projects, as well as ongoing development relationships. Send me your website or requirements, the main problem you are solving, and your expected timeline. I will respond with the initial technical direction, key risks, and the most practical next step.

If you're looking for a WordPress Expert, Top 1% LearnDash Expert, or someone who specializes in LearnWorlds, LMS platforms, BuddyBoss, WooCommerce, and membership websites, let's discuss your project and build something exceptional together. ✅ 𝗞𝗲𝘆 𝗦𝗸𝗶𝗹𝗹𝘀: LMS & Community: LearnDash | BuddyBoss | LifterLMS | TutorLMS | LearnWorlds Memberships & Access: MemberPress | Memberium | WishList Member | ARMember Development & APIs: PHP | JavaScript | REST APIs | Webhooks | Custom Plugins Integrations & AI: Claude | Cursor Pro | OpenAI APIs | GoHighLevel | Zapier | Make Page Builders & Frameworks: Elementor Pro | Bricks Builder | Astra | Custom Themes By pairing a decade of custom PHP and API engineering with modern AI-accelerated workflows, I deliver complex, enterprise-level platforms in half the usual development time—without ever sacrificing code quality, site performance, or long-term maintainability. What I Specialize In LMS & eLearning Platforms: Complete setups, custom course paths, and interactive dashboards using LearnDash, LifterLMS, TutorLMS, and LearnWorlds setups. Community & Membership Hubs: Social learning networks and private portals built with BuddyBoss, MemberPress, and custom access controls. AI Integrations & Custom Features: Native AI tutors, automated quiz generators, smart chatbot integrations, and custom workflow automations directly inside your site. Bespoke PHP & API Architecture: Custom plugins, webhooks, and complex integrations connecting your site to CRMs, payment gateways, and third-party tools. Database & Staging Migrations: Staging-first development environments, server optimizations, and zero-downtime database migrations for high-traffic sites. How We Work Together Staging-First Development: No guesswork or testing on live environments. All builds are tested, reviewed, and optimized on secure staging servers before going live. Clean & Lightweight Code: Built for speed and longevity. Your site stays fast, scalable, and easy to maintain without relying on dozens of heavy add-ons. End-to-End Execution: From initial database schema and user role architecture to final deployment and post-launch support. If you are looking to launch a new learning platform, scale a membership network, or integrate smart AI features into your existing WordPress setup, let's connect and map out your project roadmap.

🏆 Upwork Top Rated PLUS Professional 🏆 5000+ Hours on Upwork 🏆 Full Stack Wordpress Developer I 10+ years Experience 🏆 100% Satisfied clients 🏆 80% Long Term and Repeat Clients 🏆 Top Notch Quality Work I build high-performance WordPress sites, B2B WooCommerce stores, custom PHP applications, and API integrations for businesses, agencies, and growing eCommerce brands i.e. scalable, fast, and built for long-term growth. I specialize in complex B2B eCommerce: large product catalogs, tiered and role-based pricing, RFQ and quote systems, dealer portals, account-based ordering, and ERP/CRM integrations. I also build AI-powered automation using n8n, OpenAI, Retell AI, Twilio, Zapier, and Make, helping businesses connect their systems and automate repetitive workflows. 💼𝐖𝐡𝐚𝐭 𝐈 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐈𝐧 ✅𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Custom Theme & Plugin Development • Advanced WordPress Customization • Membership Platforms & User Dashboards • LMS Development • Website Speed Optimization • Security Hardening & Maintenance ✅𝐁𝟐𝐁 𝐞𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 • Custom Store Development • Large Catalog Optimization • Role-Based & Tiered Pricing • RFQ / Quote Systems • Dealer Portals & Account Ordering • ERP / CRM Integrations • Checkout Customization ✅𝐂𝐮𝐬𝐭𝐨𝐦 𝐏𝐇𝐏 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Core PHP Applications • Custom Admin Dashboards • CRM / ERP Integrations • REST API Development • Backend Architecture • Workflow Automation 🚀𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐭𝐚𝐜𝐤 ✅Backend: PHP, JavaScript, WordPress, WooCommerce, REST APIs ✅Frontend: HTML5, CSS3, Bootstrap, jQuery ✅Builders: Elementor Pro, Divi, Oxygen, Avada, Beaver Builder, Crocoblock ✅Database: MySQL, PostgreSQL, MongoDB ✅Servers: Apache, Nginx, Linux, SSH ✅Version Control: GitHub, GitLab, Bitbucket 🚀𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ✔ OpenAI Tools including ChatGPT API & Claude Integrations ✔ WooCommerce Email Automation with Klaviyo, FluentCRM & Mailchimp (Abandoned cart, win-back, post- purchase flows) ✔ Zoho CRM / Desk / Books / Inventory Integrations ✔ Automation with n8n, Zapier, Make & Monday .com ✔ AI + WordPress/WooCommerce Integrations & Automation ✔ HubSpot CMS Development & CRM Integration 🤝𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐏𝐫𝐞𝐟𝐞𝐫 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞 ✔ Clean, scalable, maintainable code ✔ Fast communication & proactive updates ✔ Business-first technical decisions ✔ Long-term support & reliability ✔ Strong debugging and problem-solving expertise ⭐ 𝐌𝐨𝐬𝐭 𝐨𝐟 𝐦𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐬𝐭𝐚𝐫𝐭 𝐰𝐢𝐭𝐡 𝐨𝐧𝐞 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐚𝐧𝐝 𝐬𝐭𝐚𝐲 𝐟𝐨𝐫 𝐲𝐞𝐚𝐫𝐬. If you're looking for a WordPress developer who understands your business, not just your codebase, send me a message with your site URL. I'll take a look before we talk.

C# & .NET Developer | Desktop & Web Applications | Database & Automation I’m a skilled software developer with experience in C#, .NET (WinForms & WPF), and database management (MySQL, PostgreSQL). I specialize in building desktop and web applications, automation solutions, and integrating systems efficiently. Key Skills & Expertise: ✔ Desktop development with WPF & Windows Forms ✔ Database design, optimization & queries (MySQL, PostgreSQL) ✔ API development & integration (REST, Modbus) ✔ SCADA systems & telemetry solutions ✔ Web development with Vue.js & ReactJS ✔ Docker & cloud-based deployments I focus on delivering high-performance, well-structured, and maintainable solutions. If you need a reliable developer for your project, let’s connect!

Turning complex workflows, messy data, and repetitive tasks into reliable software that simply works. Programming since 2002, I build practical solutions around databases, web and desktop applications, data processing, APIs, automation, and AI integration. My approach is simple: understand the real problem first, then build the cleanest solution for it. Sometimes that means a PHP or C# backend. Sometimes it's a Python automation that replaces hours of manual work. Sometimes it's connecting APIs, processing thousands of records, scraping difficult data sources, controlling specialized hardware, or adding an AI layer that lets users work with their own documents and data. And sometimes the best solution is a combination of all of them. What I can help you with: - Backend development with PHP, C#/.NET and Python - REST API development and third-party integrations - MSSQL and MySQL database development - Full-stack and custom web applications - Automation and scripting - Web scraping, parsing and data extraction - Data cleaning, transformation and processing - Scheduled jobs and business workflow automation - Windows and Electron desktop applications - WordPress development and plugins - Rapid prototyping and proof-of-concept development for web, desktop, automation, API, AI, and hardware-integrated solutions. - Industrial automation software, EZCAD3 SDK integration, and custom laser-control systems AI & OpenAI Integration I build practical AI integrations, not AI for the sake of a buzzword. I can integrate the OpenAI API into new or existing applications, including solutions using the Responses API, vector stores, document search, knowledge-base workflows, AI-assisted data processing, and custom backend automation. I also work with Codex CLI and Cursor CLI, including Docker-based environments and automated development workflows. This is useful when you want AI to become part of an existing development or business process instead of replacing everything around it. Data Scraping & Processing Need data that isn't available through an API? I have extensive experience with web scraping, parsing, extraction, data cleanup, transformation, large dataset processing, database imports/exports, and automated collection pipelines. The goal is not just to collect data. The goal is to deliver structured, usable information that can immediately become part of your workflow. Desktop, Electron & Industrial Integration I have a long background in Windows and desktop development, including C#, Visual Basic .NET, VBA, Office Add-Ins, Classic ASP and VB6. For modern desktop projects, I can also work with Electron when a JavaScript-based desktop application is a better fit. For specialized industrial projects, I can work with the EZCAD3 SDK to integrate laser marking and control functionality into custom software and automation workflows. Modernizing an old system does not always mean throwing it away. Sometimes the smarter solution is to extend it, connect it to newer services, automate the painful parts, and keep the parts that already work. How I Work I don't like disappearing into a project and returning with something completely different from what the client expected. Good development requires good communication. You can expect clear communication, realistic expectations, reliable delivery, fast problem identification, practical technical recommendations, and attention to detail. If something is unclear, I ask. If I see a better approach, I explain it. If I spot a problem that could become expensive later, I bring it up early. My goal is not just to complete a task. It's to leave you with something reliable that makes your work easier. About Me I'm also a certified railway engineer, and that engineering background strongly influences the way I approach software: understand the system, understand what can fail, remove unnecessary complexity, and build something dependable. I'm a Microsoft Certified Professional (MCP) and work with C#, .NET, PHP, Python, JavaScript, SQL, MySQL, MSSQL, Visual Basic, VBA, WordPress, APIs, automation, data processing and related technologies. I'm based in Serbia and speak English and Serbian. Vietnamese language assistance is also available when required. My normal availability is 9 AM-6 PM Central European time, and I regularly work with clients across different time zones. If you have a difficult technical problem, a repetitive process that should have been automated years ago, an API that refuses to cooperate, thousands of records that need processing, specialized hardware that needs software integration, or an idea that needs to become working software, send me a message. There is usually a way to make it simpler.