Hire the Best Auction Software Specialists

I build enterprise software that holds up under real pressure — 400,000+ daily transactions, 130+ live POS terminals, and 30+ deployed sites are running on systems I've architected and shipped. With 6+ years in .NET (Core, Framework, 6/7/8), Flutter, and SQL Server, I specialise in: ✅ High-volume backend systems & RESTful API development (ASP.NET Core) ✅ RFID-based cashless payment ecosystems (NFC, OCR, industrial RFID) ✅ Complex SQL Server design — stored procedures, indexing, query optimisation ✅ Flutter / Dart mobile applications with real-time API integration ✅ WPF / WinForms desktop applications ✅ Industrial automation — Siemens PLC, serial communication, conveyor tracking ✅ CI/CD pipelines — Azure DevOps, GitHub Actions, IIS deployment ✅ Technical leadership — code reviews, mentoring, architecture decisions One concrete result: I cut transaction processing time from ~2,500ms to under 900ms — a ~30% performance improvement across a live, high-throughput payment system. I work directly with clients to gather requirements and translate them into clean, documented, production-ready code. I'm comfortable managing full delivery cycles: architecture → development → deployment → client handoff. If you need a senior engineer who owns the outcome — not just the ticket — let's talk.

I build scalable custom web applications, SaaS platforms, and marketplace systems using Laravel, Vue.js, and Livewire — focused on performance, automation, and long-term scalability. Specialized in: * Custom Web Applications * SaaS Platforms & Admin Dashboards * B2B & Multi-vendor Marketplace Systems * Laravel + Vue.js + Livewire Development * API Integrations & Third-party Services * Payment Gateway Integrations (Stripe, PayPal, etc.) * CRM, ERP & Business Automation Systems * Approval Workflows, User Roles & Custom Portals * Performance Optimization, Bug Fixes & Maintenance I help startups and businesses turn complex ideas into reliable, scalable, and easy-to-manage digital platforms. Whether it’s a SaaS product, B2B marketplace, internal business system, or workflow automation platform, I build solutions that are secure, fast, and built for growth. My focus is on clean architecture, efficient development, and long-term maintainability — so your platform remains easy to scale as your business grows. If you need a Laravel developer for your next web app, SaaS platform, or marketplace project, I can help.

Hi, I'm Abhiraj Anand, a Full Stack Developer with 5+ years of experience specializing in Travel Technology Development, Travel Portal Solutions (B2B & B2C), Rental Platforms, and complex API Integrations including Amadeus, Sabre, Travelport, Ratehawk, TBO, Tripjack, Mondee, Mystifly, Hotelbeds, Webbeds, Channel Manager, Payment Gateways, etc. I help travel agencies, OTAs, tour operators, DMCs, and rental businesses build modern booking platforms, automate operations, and scale through reliable travel technology solutions. --- ## Services I Offer * Travel Portal Development (B2C, B2B, White Label Solutions) * Flight, Hotel, Car Rental, Package & Activity Booking Systems * Travel API Integration (Amadeus, Sabre, Travelport, TBO, Tripjack, Hotelbeds, Webbeds, Channel Manager Integration, PMS integration, Payment Gateways) * Custom Web Development (Laravel, ReactJS, NodeJS, Next.js) * WordPress Development & Theme Customization * Shopify Store Development & Private App Integration * Performance Optimization, Scalability & Mobile Responsiveness ## Core expertise: * TravelPortal development – B2B, B2C, B2E, Corporate Travel Booking Tools & Agent Management Systems * GDS integration – Travelport, Amadeus, Sabre * NDC & LCC Integrations – Verteil, Tripjack, TBO, EaseMyTrip (EMT) and airline direct APIs * Hotel Booking Integrations – RateHawk, Expedia, TBO Holidays, Hotelbeds, Guesty, Webbeds and Private Inventory Systems (PMS) * Hotel mapping – Manual & Giata * Flight Expert integration & automation * Cruise, car rental, DMC software, package management tools * Travel CRM, ADM management, HX segment tools * Multi-API integrations – Flight, Hotel, Car, Cruise, Rail, Bus, Sightseeing, Activities * Payment gateways - Stripe, Razorpay, PayPal, Cashfree, Worldpay, Paytm, Worldline, PayU, ConnectIPS, CCAvenue, etc. --- ## Featured Projects * ClickYourJourney – Complete Travel Portal (B2C + B2B) Modules for flights, hotels, packages, activities, supplier management, lead management, invoicing, payment gateways, and multiple travel APIs. Tech Stack: PHP (CodeIgniter), ReactJS, MySQL * StudyDrive – Ride Share Platform Ride booking module with driver and guest management and marup module & Stripe payment gateway. Tech Stack: Node Js, Next Js, MySQL, Stripe * TeenvaTravels – Travel & Rental Website Next.js frontend, NodeJS backend, integrated Amadeus API for flight bookings, car rental, room/property rental. Tech Stack: Next.js, NodeJS, MongoDB --- ## Skills * Travel APIs & Technology: Amadeus, Sabre, Travelport, TBO, Tripjack, , Mondee, Mystifly, Ratehawk, Hotelbeds, Webbeds, Channel Manager, Payment Gateways * Languages & Frameworks: PHP (Laravel, CodeIgniter), JavaScript (ReactJS, NodeJS, Next.js), Python, Java, C++ * Frontend Development: ReactJS, AngularJS, Tailwind CSS, Bootstrap, jQuery, HTML5, CSS3 * Databases: MySQL, MongoDB * Tools & Platforms: AWS, Docker, GitHub, Bitbucket, GitLab, Figma, Photoshop * Other Expertise: API Integration, Optimization, Agile Development, Scalable Architecture ## Why Clients Choose Me * Expertise in travel technology & API-driven platforms * Clean, scalable, and maintainable code * On-time delivery with full transparency * Proven record of boosting booking efficiency & conversions * Ongoing post-launch support & maintenance ## Travel Technology Development * Flight Booking Portal Development * Hotel Booking Portal Development * Travel Portal Development * OTA Development * B2B Travel Portal Development * B2C Travel Portal Development * Corporate Travel Booking Systems * Travel CRM Development * Reservation Management Systems * Travel Booking Engine Development ## API Integrations * Amadeus API Integration * Sabre API Integration * Travelport API Integration * Flight API Integration * Hotel API Integration * NDC API Integration * GDS Integration * Supplier API Integration * Channel Manager Integration * Payment Gateway Integration * PMS Integration ## Travel Technology Expertise * Amadeus Developer * Sabre Developer * Travelport Developer * Ratehawk Developer * TBO Developer * Tripjack Developer * Webbeds Developer * Hotelbeds Developer * Channel Manager Developer * PMS Developer --- Travel Technology Expertise & Keywords Car Rental Portal • White Label Travel Portal • Travel API Integration • Amadeus Integration • Sabre Integration • Travelport Integration • Amadeus Development • Sabre Development • Travelport Development • Hotelbeds Integration • RateHawk Integration • TBO Integration • Tripjack Integration • Webbeds Integration • Stripe Integration • Razorpay Integration • PayPal Integration

Amazon SP-API and Amazon Ads API expert building production integrations, data pipelines, MCP servers, and advertising automation for marketplace sellers and SaaS teams. I am an Amazon approved third party developer with PII access, 100% Job Success, and more than 900 Upwork hours. I replace spreadsheets, manual exports, and unreliable integrations with production systems that include official OAuth, logging, retries, monitoring, approvals, documentation, and a clear audit trail. WHAT I BUILD • Amazon SP-API integrations for orders, inventory, listings, finances, returns, reports, notifications, and multi-account applications. • Amazon Ads API systems for campaign reporting, Marketing Stream, search term analysis, budget and bid rules, and guarded write automation. • Private MCP servers and AI command centers for Claude or Codex. My largest production build connects Seller Central, Amazon Ads, Google Ads, and ShipStation through 130 tools. It supports an advertising account with 177,000 keywords through an approval queue. • Data pipelines and warehouses. I ingest Amazon SP-API, Amazon Ads API, Shopify, and Mercado Libre 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, Buy Box monitoring, pricing strategies, and approval workflows. 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 · Amazon Seller Central · API Integration · API Development · MCP · Python · FastAPI · TypeScript · PostgreSQL · BigQuery · AWS · Google Cloud · Shopify Send me the integration, report, advertising workflow, or reconciliation problem your team needs to fix. 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.

✨ Third-Party Integrations Expert | SellerCloud, ChannelAdvisor, NetSuite & More ✨ Hello! My name is 𝐀𝐬𝐚𝐝 𝐊𝐡𝐚𝐰𝐚𝐣𝐚 and I’m a Third-Party Integration Specialist with over 6 years of experience helping eCommerce businesses automate and scale their operations. I specialize in integrating and optimizing SellerCloud, SellBrite, Baselinker, ChannelAdvisor/Rithum, CommerceHub, DSCO, Marketplace Connect, CED Commerce, NetSuite Oracle, GoFlow, Easy Commerce, SellerChamp, LitCommerce, Channable, Channel Gate, SPS Commerce, Zoho Inventory, and other marketplace automation tools. I have successfully streamlined inventory, orders, and multi-channel listings across platforms like Amazon, eBay, Walmart, Etsy, Shopify, BigCommerce, TikTok Shop, and more, ensuring seamless operations and maximum efficiency. --------------------------------------------------------------------------------------------------------------------------- 💼 𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐃𝐎 𝐅𝐎𝐑 𝐘𝐎𝐔: ◆ Third-Party Integrations – Seamlessly connect marketplaces and automation tools to streamline your operations. ◆ Marketplace Integration – Link Amazon, eBay, Walmart, Shopify, and more to SellerCloud & other tools. ◆ Bulk & Manual Listing Creation – Optimize and manage listings, including variations. ◆ Product Mapping & Bundles – Ensure accurate mapping and create bundle/shadow listings for better exposure. ◆ Inventory & Warehouse Management – Automate stock updates and sync with FBA, 3PL, and in-house warehouses. ◆ Order & Shipping Automation – Optimize fulfillment, carrier integrations, and tracking across platforms. ◆ Custom Reports & Analytics – Generate insightful reports to enhance efficiency and boost sales. ◆ Ongoing Maintenance & Support – Handle system updates, troubleshoot issues, and provide continuous improvements. …and much more, tailored to your business needs! --------------------------------------------------------------------------------------------------------------------------- 💼 𝐖𝐇𝐘 𝐖𝐎𝐑𝐊 𝐖𝐈𝐓𝐇 𝐌𝐄? ◆ Integration-First Approach – Focused on seamless automation to improve business efficiency. ◆ Step-by-Step Execution – Well-planned strategies to minimize risks and maximize results. ◆ Transparent Communication – Regular updates and progress reports to keep you in the loop. ◆ Deadline-Driven – I meet deadlines without compromising on quality. ◆ Professional Work Ethic – Dedicated, detail-oriented, and committed to success. --------------------------------------------------------------------------------------------------------------------------- ✨ 𝐅𝐑𝐄𝐄 𝐓𝐑𝐈𝐀𝐋 𝐀𝐕𝐀𝐈𝐋𝐀𝐁𝐋𝐄 - Let my work speak for itself before you commit! ✨ 💰 Rate is negotiable depending on the project scope💰 📅 𝐀𝐕𝐀𝐈𝐋𝐀𝐁𝐋𝐄 𝟕 𝐃𝐀𝐘𝐒 𝐀 𝐖𝐄𝐄𝐊: Let’s schedule a call and discuss how I can help grow your eCommerce business! Best Regards, Muhammad Asad K. 𝐘𝐨𝐮𝐫 𝐞𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭!

I help founders build, and scale marketplace products, from initial architecture to production deployment. My core expertise is in marketplace systems: role-based access, payments, onboarding flows, messaging, search & filtering, commission logic, and scalable backend infrastructure. Whether you’re launching an MVP or optimizing an existing platform, I focus on building systems that are technically sound and commercially viable. My expertise lies in working with a range of technologies, including Node.js, Express, Koa.js, React.js, Next.js as well as databases such as MongoDB, Redis, and PostgreSQL. I have a solid understanding of these frameworks and databases, allowing me to develop efficient and robust web applications. Throughout my career, I have successfully delivered projects in various industries, including marketplace platforms and fitness platforms catering to gym trainers and their clients. These experiences have honed my ability to understand client needs and develop tailored solutions that drive results. Furthermore, I hold a strong educational background in computer science, which has provided me with a solid foundation in programming principles and problem-solving techniques. I continuously strive to stay up-to-date with the latest trends and best practices in the field to ensure that my work remains cutting-edge and of the highest quality. When you work with me, you can expect professionalism, clear communication, and a commitment to delivering exceptional results. I pride myself on my attention to detail and my ability to work efficiently under tight deadlines. Thank you for taking the time to review my profile. I look forward to the opportunity to collaborate with you on your next project. Feel free to reach out to discuss your specific requirements in more detail.