Hire the Best Amazon Webstore Developers

Are you tired of burning ad spend with little to show for it? I help Amazon sellers reduce ACoS, eliminate wasted ad spend, and drive revenue growth through high-performance Amazon PPC campaigns. I also help eCommerce brands improve and optimize their Shopify stores with conversion-focused front-end development and A/B testing. With 10+ years managing Amazon PPC across dozens of niches, I've overseen ad budgets from $5K to $1M/month and consistently delivered measurable ROI. My approach combines deep keyword research, strategic bid management, and relentless negative keyword pruning to lower ACoS and drive sustainable growth. Alongside Amazon PPC, I specialize in front-end and Shopify development, building fast, responsive, and conversion-focused interfaces. My focus is improving usability, performance, and user experience to increase conversion rates and overall store performance. I also have experience building Shopify custom apps, enabling automation, custom workflows, and extended Shopify functionality for growing brands. Additionally, I work with Shopify Functions and Checkout UI Extensions for advanced checkout customization and platform extensibility. What I bring to your business: - Full Amazon PPC campaign audits to identify waste and missed opportunities - Data-driven keyword research and match-type strategy - Ongoing bid optimization to hit your target ACoS - Front-end development (React, TypeScript, JavaScript) - Shopify theme customization (Liquid, HTML, CSS, JavaScript) - Shopify app development & integrations (Node.js, React.js, Shopify Admin API, Webhooks) - Shopify Functions (Rust or TypeScript, WebAssembly) & Checkout UI Extensions (TypeScript, JavaScript) - A/B testing implementation and conversion rate optimization - Clear weekly/monthly reporting so you always know where your money goes I've worked with brands in home goods, health & wellness, electronics, and more - from launch-stage sellers to 7-figure brands. Ready to stop guessing and start scaling? Let's talk.

My name is Dan Iannicelli, owner and founder of Big Box of Razors, a bulk shaving supply company that’s been running successfully for over 11 years. I specialize in Custom AI Software and Dashboard Development, Zapier automations, AI integrations, and lead generation systems that eliminate manual outreach. I've built over 25 iOS apps but I am currently not working on these as much as working on custom work dashboards utilizing AI to make your life and work easier. Using Claude, Zapier, Gemini, ChatGPT, Gmail, and Google Sheets, I’ve built a fully automated process that finds, qualifies, and contacts new B2B leads every hour — generating around 4,000+ qualified leads for my business per month with zero daily management. All built to connect various apps together in one simple dashboard. Makes your workflow as streamlined as possible. I now help businesses automate their own workflows — from lead sourcing and email outreach to CRM updates and fulfillment integrations like ShipStation. If you want a reliable system that runs itself and scales your sales pipeline automatically, I can help build it. I have a Civil Engineering Bachelor of Science Degree from the University of Connecticut. Engineer In Training certification from CT. I've built over 25 iOS apps, 20 Android apps, shipped a Shopify app called ShipVueue. Over the last ten years, I have been running multiple online businesses on Amazon as well as my own Amazon FBA Business and currently working on AI Agent development / custom dashboard project. I can help you with the following: Amazon Seller - - - - - - General Amazon Seller Discussions Costs and Benefits of Selling on Amazon Amazon FBA How to Create a Product Listing GS1 Barcodes Amazon Gating Process Amazon Advertising Processes Sponsored Product Ads Sponsored Brands Ads Sponsored Display Ads Inventory Fulfillment by Amazon Fulfillment by Merchant Shipstation and third party apps Selling in Various Countries Boosting Sales Shopify Website Setup Shopify Coding Edits Checkout customization I have also been working as a Civil Engineer for 8 years and have worked with AutoCAD / ArcGIS / ArcMap for a number of projects. PHOTO / IMAGE DESIGN & EDITING: • Transform any image, add transparency, overlay, • Creation of beautiful Instagram imagery • Expert with Font editing, Logo Design • Photo manipulation; • Digital art; • Web design: creation of sites, logo design, branding; Software & Platforms: - SHOPIFY - CLAUDE - GEMINI AI - AMAZON SELLER PLATFORM - HELIUM 10 - JUNGLESCOUT - ZAPIER AUTOMATION - YOUTUBE STUDIO - AMAZON ADS - GOOGLE ADS - MICROSOFT ADS - FACEBOOK ADS - GIMP - LOGOIST - GAMESALAD - PHOTOSHOP - ARCMAP - ARCGIS - AUTOCAD - WORD - EXCEL - POWERPOINT AI Development and Art OpenAI OpenAI Agent Design Claude Kling.AI Sora AI Video Suna AI Music Leonardo.AI Grok Reve Art

I’ve built 70+ custom Amazon seller tools (including sellerbot, seller-shark, sellerfuse, sellerwiz) over 7+ years — from real-time analytics dashboards and automated repricing engines to PPC campaign managers and Keepa-powered product research platforms. I specialize in Amazon SP-API, Advertising API, and Keepa API integration, helping Amazon sellers, agencies, and SaaS startups turn complex marketplace data into automated, scalable software. What I build: • Custom Amazon Seller Dashboards((including sellerbot, seller-shark, sellerfuse, sellerwiz) — profit tracking, inventory monitoring, sales analytics with real-time SP-API data • FBA/FBM Automation — repricing engines, inventory alerts, order management, multi-channel sync • Amazon PPC Tools — Ads API integration, keyword automation, bid optimization, campaign performance tracking • Keepa API Integration — price history tracking, sales rank analysis, deal alerts, historical data dashboards • Multi-tenant SaaS Platforms — white-label Amazon tools for agencies, Chrome extensions, and MWS-to-SP-API migrations My stack: PHP (Laravel), Python (FastAPI/Flask), Node.js on the backend. React and JavaScript on the frontend. MySQL, PostgreSQL, and MongoDB for data. AWS (Lambda, S3, RDS, EC2) for cloud infrastructure. I’ve integrated 100+ APIs across e-commerce, payment, shipping, and CRM platforms. Recent project highlights: • Built a reporting Dashboard handling 50K+ SKUs with real-time SP-API data sync • Developed a Keepa-powered product research platform used by 200+ Amazon sellers • Reduced manual reporting time by 80% with automated SP-API dashboards for Amazon sellers Whether you need a complete SaaS platform, a single API integration, or a full MWS-to-SP-API migration, message me with your requirements and I’ll respond within a few hours with a clear plan and timeline.

Upwork's Top Rated | Seasoned Software Developer with over 18 years of experience in designing, developing, and delivering cutting-edge software solutions. Proficient in a wide array of programming languages, frameworks, and tools, with a proven track record of successfully completing diverse projects across industries. Adept at leading teams, optimizing processes, and driving innovation in software development.

8+ years of experience | Highest Top Rated Plus Badge | 4000+ working hours | 100% 5-star reviews Specialized in Amazon Account Management, helping clients boost rankings, increase conversions, and grow sales with data-backed strategies. Results-driven Amazon Seller Central expert — previously an official Amazon Service Provider — here to help you manage and scale your Amazon business from start to finish. Full-Service Amazon Seller Support: Whether you’re just launching your first product or looking to grow an established brand, I offer end-to-end Amazon solutions, customized to your unique needs, including: ✅ Amazon Account Management I handle everything from account setup and health monitoring to full compliance and performance tracking, ensuring your seller account runs smoothly and profitably. 🎯 Amazon PPC (Pay-Per-Click) Advertising Whether you need Sponsored Products, Sponsored Brands, or Sponsored Display Ads, I craft and optimize your campaigns for maximum traffic, increased sales, and the best possible ROAS—always budget-conscious and results-focused. 🔍 Amazon SEO & Keyword Research Using deep Amazon keyword research tools and insights into the A9 search algorithm, I optimize your entire listing—including titles, bullet points, descriptions, backend search terms, and more—to boost your organic visibility and attract motivated buyers. 📦 Amazon Listing Optimization From creating compelling product titles and optimized bullet points to selecting high-quality images and refining backend keywords, I craft listings that convert shoppers into customers. 📝 Amazon A+ Content / Enhanced Brand Content (EBC) I design persuasive, professional A+ Content that builds trust, highlights your brand story, and improves conversion rates. 🚀 Product Launch Strategies & Review Management I build data-backed launch plans that combine listing optimization, PPC ad campaigns, and effective review generation tactics to position your new products for rapid success. 📊 Amazon Sales Analytics & Competitor Analysis I dive into your sales data and analyze your competitors to offer clear, actionable insights that help you make smarter decisions and stay ahead in your niche. 📦 Amazon Inventory & FBA Management Never worry about stockouts or overstocking—I manage your inventory levels, set reorder alerts, and optimize your FBA shipments for seamless fulfillment. 🛡️ Amazon Brand Registry Assistance I guide you through the entire Brand Registry process to protect your intellectual property and unlock enhanced marketing tools. 💬 Customer Service & Feedback Management Promptly managing customer inquiries, feedback, and reviews, I help maintain a positive reputation and increase buyer satisfaction. 💰 Amazon Pricing & Buy Box Strategy I research and implement dynamic pricing strategies that strike the right balance between competitiveness and profitability, improving your chances to win the coveted Buy Box. 🏬 Amazon Storefront Design & Video Creation I create visually stunning, fully branded Amazon storefronts and product videos designed to inspire trust and showcase your catalog professionally. 🌎 International Expansion Support Planning to expand globally? I assist with launching and optimizing listings in international marketplaces like the UK, EU, Canada, and beyond, including listing translation and logistics coordination. 🔄 Parent-Child Variations & Product Ranking I help you set up and optimize parent-child product listings that make it easy for customers to find options while improving your overall product ranking and cross-selling. Why Work With Me? Reliable & Detail-Oriented: I consistently deliver high-quality results on time. Experienced & Results-Focused: I know the Amazon ecosystem inside and out and craft strategies that maximize ROI. Excellent Communication: Clear, transparent, and prompt — you’ll always know the status of your projects. Customer-Centric: I’m committed to your long-term success, offering unlimited revisions and even a satisfaction guarantee. My mission is straightforward: to deliver measurable results that exceed your expectations and help your Amazon business thrive. 📩 Let’s chat! Send me a message to discuss your Amazon project and see how I can help grow your sales, boost your rankings, and scale your business effectively. Happy Upworking! 🚀

Top Rated with 100% Job Success and more than 900 hours of Amazon SP API work on Upwork. I build AI command centers, data warehouses, advertising automation, and repricing systems for marketplace sellers. If your team relies on spreadsheets, manual exports, or integrations nobody trusts, I can replace that workflow with a production system that has logging, retries, monitoring, approvals, and a clear audit trail. WHAT I BUILD • AI command centers using MCP. My largest production build connects Claude to Amazon Seller Central, Amazon Ads, Google Ads, and ShipStation through 130 tools. It manages an advertising account with 177,000 keywords through an approval queue. • Data pipelines and warehouses. I ingest Amazon SP API, Amazon Ads, Shopify, and Mercado Libre data into BigQuery or PostgreSQL. One analytics build removed about six hours of weekly manual reconciliation for each analyst. • PPC and repricing automation. I build wasted spend audits, search term review, bid and budget rules, Buy Box monitoring, and guarded repricing. Changes are previewed and approved before they reach the account. • Complete products. I built RepriceLab, a Buy Box repricer used across more than 12 Amazon marketplaces by paying subscribers. SELECTED WORK • Andy Anand Chocolates: 130 tool AI command center covering Seller Central, Amazon Ads, Google Ads, and ShipStation. • HeadBlade: OAuth MCP server and BigQuery warehouse covering orders, listings, finances, and returns across four marketplaces. • SellAnalytix: real time Amazon analytics combining SP API, Marketing Stream, and warehouse data. • Kapow Meggings: unattended daily Amazon and Shopify listing audits with workbook reporting. • Gun Planet: two way Shopify inventory and order synchronization for a regulated marketplace. • DeLuca Consulting: Amazon Ads operations supported by custom command center tooling. SECURITY I am an Amazon approved third party developer with PII approval. Access uses Amazon's official authorization flow. Clients never share passwords, access can be revoked in Seller Central, and every write action is logged. STACK Amazon SP API · Amazon Ads API · MCP · Python · FastAPI · TypeScript · NestJS · PHP · Laravel · PostgreSQL · BigQuery · AWS · Google Cloud · Shopify Send me the report your team still builds by hand, the advertising account nobody audits, or the numbers that never match. I will reply within one business day with a diagnosis and a fixed scope proposal. Based in Montevideo, Uruguay. I work in US time zones and speak native English and Spanish.