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We are launching a B2B aviation marketplace for aircraft engines and engine spare parts, built on WordPress using the Listivo theme. We require an experienced developer to build a robust bulk inventory upload system that allows suppliers to upload their full inventory using a structured Excel template (Engines + Spares tabs), with optional ZIP image upload support. The system must validate data, apply strict deduplication logic (ESN for engines, PN + Condition + Location + Seller for spares), process files in the background (no timeouts), assign default engine images based on engine type when none are provided, and automatically create or update listings within WordPress. This must be developed as a clean, scalable custom WordPress plugin with proper validation, background queue processing, secure architecture, and an admin dashboard for upload history, error handling, and processing logs. The system must handle large files (5,000+ rows) reliably and include supplier confirmation emails after processing. Full technical specifications, Excel structure, dropdown lists, image handling requirements, deliverables, and engineering standards are attached in the Word document. When bidding please provide examples of the projects which you have delivered.
Projekt-ID: 40246535
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197 freelancere byder i gennemsnit £449 GBP på dette job

Hi, We have strong experience building custom WordPress plugins for complex marketplaces, including bulk import systems with validation, background processing, and advanced deduplication logic. Your aviation marketplace requirement, Excel based inventory upload for engines and spares with ZIP image handling, queue processing, and strict ESN and PN rules, is clear to us. We will develop a clean, scalable plugin compatible with Listivo, featuring structured Excel parsing, background queue to prevent timeouts, secure file handling, automatic create or update logic, default engine image assignment, and a detailed admin dashboard for logs, errors, and upload history. Supplier confirmation emails and support for 5,000 plus rows will be handled reliably. Have you finalized the exact custom post types and meta structure for engines and spares within Listivo? Should the queue run via WP Cron, server cron, or a dedicated background worker? Our WordPress architects and backend engineers specialize in high performance import systems and marketplace platforms, ensuring secure architecture and long term scalability. FYI. The current bid amount is a placeholder to submit the proposal. Look forward to hearing from you. Regards Yasir LEADconcept PS: Let me know, if you want to see our team past work to determine our skills/expertise or past customer's references.
£500 GBP på 7 dage
9,4
9,4

⭐⭐⭐⭐⭐ Dear Valuable Client, CnELIndia, led by Raman Ladhani, brings extensive experience in developing scalable B2B marketplaces and custom WordPress plugins. We can build your bulk inventory upload system on the Listivo theme with full Excel template support, robust data validation, deduplication logic (ESN for engines, PN+Condition+Location+Seller for spares), background processing for large files, default engine image assignment, and automated listing creation/updating. Our solution includes a secure architecture, admin dashboard with upload history, error logs, processing insights, and supplier confirmation emails. We ensure seamless handling of 5,000+ row uploads and can integrate optional ZIP image uploads. CnELIndia’s proven expertise in PHP, MySQL, Excel automation, and API integration ensures delivery aligned with your technical specifications and engineering standards, guaranteeing reliability, scalability, and maintainability. Previous projects include complex inventory and marketplace platforms with similar bulk data workflows.
£500 GBP på 7 dage
9,1
9,1

Hello, I understand you need a robust, scalable WordPress plugin for bulk inventory uploads on a Listivo-based aviation marketplace. I will build a clean, secure plugin that accepts a structured Excel (Engines and Spares tabs), validates data, performs deduplication by ESN ( engines ) and PN+Condition+Location+Seller ( spares ), processes files in the background with a durable queue, assigns default engine images by type if none are given, and creates or updates listings directly in WordPress. The system will support optional ZIP image uploads, maintain an admin dashboard for upload history, errors, and processing logs, and send supplier confirmation emails after processing. I’ll document data structures, Excel fields, dropdown values, image rules, and API hooks, and ensure the solution is scalable to 5,000+ rows and future growth. What are the exact fields and dropdown options for Engines and Spares in the Excel template, and which mail server/provider should handle supplier confirmations? How should image handling be prioritized if some images fail upload? Do you require stage and production environments with a dedicated queue worker setup? Are there any existing APIs or ERP systems to integrate with the inventory data? What are the preferred default engine images by engine type? Is there a specific deduplication threshold or tolerance for data cleanup? Do you have a preferred file naming convention for uploads and archive retention policy? What level of admin access
£750 GBP på 10 dage
8,8
8,8

Hello, With over a decade of experience building custom WordPress plugins and websites, my team at Our Software is well-equipped to tackle this ambitious project. Handling large, structured data sets and integrating them seamlessly into the WordPress environment is one of our specialties. We follow strict engineering standards to ensure clean, scalable code that can reliably handle not only your current needs but also future growth. Our expertise in PHP, HTML, and WordPress makes us the ideal choice for creating the AI-assisted bulk inventory upload system you need. We have deep understanding of queuing data for background processing, as well as designing secure architectures that are resistant to timeouts and other common challenges. Additionally, we understand your aspirations for a user-friendly UI that provides important information like upload history and processing logs at a glance. Our designs focus on streamlining backend tasks without sacrificing functionality or security. We aim to deliver exceptional solutions while keeping open channels of communication with clear lines of accountability, thus making us an excellent fit for your project. I look forward to working with you on realizing your aviation marketplace vision! Thanks!
£450 GBP på 6 dage
8,6
8,6

Hello, I am excited about the opportunity to develop your AI-assisted bulk inventory upload system for your B2B aviation marketplace. My experience in creating tailored solutions for eCommerce platforms ensures that I can deliver a seamless integration for uploading aircraft engines and spare parts efficiently. I understand the importance of a user-friendly interface and robust functionality to facilitate bulk uploads. My approach will focus on optimizing the upload process, ensuring accuracy and speed while maintaining data integrity. I can also implement features that enhance user experience, making it easier for your clients to manage inventory effectively. Let’s discuss how I can contribute to the success of your marketplace by creating a system that meets your specific needs. Regards, Nurul Hasan
£250 GBP på 7 dage
8,8
8,8

Hi! We can deliver this as a clean, scalable custom WordPress plugin (Listivo-compatible) that lets suppliers upload large inventories (5,000+ rows) safely—validated, deduplicated, processed in the background (no timeouts), and auto-created/updated as pending-review listings. Phase 1 (Included) Bulk upload: required Excel (Engines + Spares tabs, exact headers) + optional ZIP images. Strict validation (required fields, dropdown values) + downloadable error report. Mandatory dedup logic: Engines: ESN Spares: PN + Condition + Location + Seller Updates existing records (incl. qty update) or creates new listings when unique. Background queue processing in safe batches + full admin dashboard: upload history, supplier, rows processed, errors/flagged rows, JSON preview, reprocess. Image handling (critical): Download from Photo URLs into Media Library Map ZIP filenames to rows Default featured image by Engine Type via admin mapping + global fallback Supplier confirmation email with created/updated counts + errors/missing fields. Not in Phase 1 (Phase 2) Buyer accounts/RFQ workflows, memberships/fees, advanced supplier portals, and “delta sync + removals” beyond the agreed template. Luli && Nico - widuIT - Top Freelancers LATAM
£750 GBP på 30 dage
8,5
8,5

Hi there, Your marketplace needs a reliable bulk upload plugin that handles thousands of engine and spare-part records with validation, deduplication, and background processing. I’ve built scalable WordPress plugins and large data importers, so I can deliver clean queue handling, smart defaults, and a clear admin dashboard. I can start immediately and outline a development timeline once we review the attached specs. Could you share how suppliers are expected to structure the ZIP image bundle so the system can correctly map images to items? Best regards, Muhammad
£550 GBP på 1 dag
8,2
8,2

Hello Greetings, After reviewing your project description, I feel confident and excited to work on this project for you. But I have some crucial things and queries to clear out. Please leave a message on chat so we can discuss this, and I can share my recent work similar to your requirements. Thanks for your time! I look forward to hearing from you soon. Best Regards.
£750 GBP på 8 dage
8,2
8,2

⭐⭐⭐⭐⭐ Build a Robust Bulk Inventory Upload System for Your Marketplace ❇️ Hi My Friend, I hope you're doing well. I just checked all of your project requirements and I can see you are looking for an experienced developer to create a bulk inventory upload system. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for WordPress development. I will build a custom plugin that meets all your specifications, ensuring data validation and background processing. ➡️ Why Me? I can easily develop your bulk inventory upload system as I have 5 years of experience in WordPress development, specializing in plugin creation, data validation, and background processing. My expertise includes working with Excel templates, image handling, and secure architecture. Additionally, I have a strong grip on other relevant technologies, ensuring a smooth and efficient process for your project. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ WordPress Development ✅ Custom Plugin Creation ✅ Data Validation ✅ Background Processing ✅ Excel File Handling ✅ Image Upload Support ✅ Admin Dashboard Design ✅ Error Handling ✅ Secure Architecture ✅ Deduplication Logic ✅ Bulk Upload Systems ✅ Email Notifications Waiting for your response! Best Regards, Zohaib
£350 GBP på 2 dage
7,8
7,8

As an experienced technology partner with a specialized in WordPress plugin development, I strongly believe my team and I are the perfect fit for your project. Drawing from our decade-long expertise in deploying customized solutions to various industries including B2B platforms and proptech, we can offer you a robust and scalable bulk inventory upload system for your aviation marketplace. By leveraging our proficiency in PHP, MySQL, HTML, and WordPress we can create a clean and secure plugin that incorporates dedicated queuing for file processing, strict data validation, deduplication logic based on ESNs and PN with relevant conditions. Our prior projects reflect our capability of handling complex tasks efficiently while ensuring top-notch quality. With WellSpring Infotech leading the way, your envisioned admin dashboard will possess comprehensive error-handling mechanisms, processing logs, and a robust upload history system. We understand your need for a reliable system that can accommodate large files and process them seamlessly even under high loads; we guarantee zero timeouts. Additionally, I assure you of dedicated follow-up emails to suppliers after successful processing. Thanks....
£750 GBP på 7 dage
7,9
7,9

Hello, When it comes to building a robust, scalable solution like the one you're requesting for your aviation marketplace, experience is key. With over five years in full-stack development and specializations in both Python and JavaScript - two critical components for this project - I am confident in my abilities to deliver exactly what you need. Data handling and validation are part and parcel of what I do as a Python specialist. My skills in data processing and familiarity with Excel will ensure that your suppliers' inventory uploads are seamlessly managed, validated, and processed swiftly regardless of the size. I also bring a solid knowledge of WordPress and PHP which will be crucial for designing and implementing the custom plugin. One aspect I believe sets me apart is my commitment to not just develop software, but to build interactive and user-friendly systems. This involves paying close attention to detail, cutting-edge technologies usage (like your Listivo theme), crafting efficient yet elegant code, and optimizing performance. All these skills combined provide the secure architecture approach that you'll need to steer your B2B aviation marketplace to greater heights. Let's make this project soar together! Thanks!
£500 GBP på 7 dage
7,1
7,1

Hi! I specialize in building scalable WordPress plugins for complex inventory systems. With over 9 years of experience in PHP, MySQL, Excel processing, and background queue architecture, I can deliver a robust bulk upload system tailored to your aviation marketplace. Here's how I can help: * Custom plugin with structured Excel import (Engines + Spares) * Strict deduplication (ESN / PN + Condition + Location + Seller) * Background processing for 5,000+ rows (no timeouts) * ZIP image handling + default engine image logic * Admin dashboard with logs, validation, supplier email confirmations Do you prefer WP Cron or server-level queues for background processing?
£500 GBP på 7 dage
7,3
7,3

Hi there, I appreciate the opportunity to work on your B2B aviation marketplace. With extensive experience in developing custom WordPress plugins, I can create the robust bulk inventory upload system you need. I’ve successfully built similar systems, focusing on secure architecture and data validation, ensuring seamless integration with existing setups. I will implement a structured approach for suppliers to upload their inventories, with background processing to handle large data files efficiently. My previous projects demonstrate my commitment to quality, including handling complex Excel templates and ensuring data integrity with strict deduplication logic. I aim to deliver the plugin within 14 days, allowing for adjustments based on user feedback. I’d love to hear your thoughts on this timeline. Best regards,
£250 GBP på 4 dage
6,9
6,9

Hi I can build a clean, scalable custom WordPress plugin that handles large Excel-based inventory uploads for engines and spare parts, with background processing, strict deduplication, and automated listing creation/updates inside your Listivo marketplace. The main technical challenge is reliably ingesting 5,000+ rows without timeouts while enforcing ESN and PN+Condition+Location+Seller uniqueness, which I solve using asynchronous queue workers, staged validation, and secure file handling. The system will support Excel templates with dropdown logic, ZIP image ingestion, and fallback engine images based on engine type. An admin dashboard will provide upload history, error logs, per-row validation, and reprocessing options. Suppliers will receive confirmation emails after successful runs, and the plugin will follow clean engineering standards (OOP, nonce/security checks, capability-based access, sanitized inputs). I have delivered similar large-scale ingestion tools and WordPress automation systems for B2B marketplaces and high-volume data workflows. Thanks, Hercules
£500 GBP på 7 dage
7,0
7,0

Hello, I HAVE BUILT SIMILAR LARGE-SCALE WORDPRESS DATA INGESTION AND MARKETPLACE SYSTEMS BEFORE AND I CAN SHOW YOU I am a WordPress developer with 10+ years of experience building custom plugins for B2B marketplaces, including bulk inventory uploads, background processing, strict deduplication logic, and admin tooling. I can develop a clean, scalable custom plugin for your Listivo-based aviation marketplace that supports Excel-based bulk uploads (Engines + Spares), optional ZIP image handling, robust validation, and reliable background queue processing for large datasets (5,000+ rows) without timeouts. The solution will implement precise deduplication (ESN for engines; PN + Condition + Location + Seller for spares), automatic create/update of listings, default engine image assignment by engine type, secure architecture, and a comprehensive admin dashboard for upload history, logs, and error handling. Supplier confirmation emails will be sent automatically after processing, and all work will align with your provided technical specifications and engineering standards. I will provide 2 years of free ongoing support, complete source code, and deliver the project using an Agile methodology with clear milestones and documentation. Relevant project examples can be shared on request. I eagerly await your positive response. Thanks
£500 GBP på 7 dage
7,3
7,3

Hello, I can develop a robust WordPress plugin for your aviation marketplace to handle bulk inventory uploads from structured Excel templates (Engines + Spares), with optional ZIP image support. The system will validate data, enforce deduplication (ESN for engines, PN+Condition+Location+Seller for spares), process large files in the background, assign default images where needed, and automatically create or update listings. I will build a secure, scalable architecture with a full admin dashboard for upload history, error handling, logs, and supplier confirmation emails. My solution ensures performance, reliability, and maintainability for thousands of records. Clarification Questions: Are there preferred background processing tools (WP Cron, Action Scheduler, or custom queue) for large file handling? Should default engine images be sourced from a provided library or dynamically assigned based on engine type rules? Thanks, Asif.
£750 GBP på 11 dage
6,5
6,5

Greetings, I see that you're looking to create a bulk inventory upload system for your B2B aviation marketplace on WordPress. This project involves enabling suppliers to easily upload their inventory through a structured Excel template, complete with image support and strict data validation. My approach would involve developing a custom WordPress plugin that not only meets your functional requirements but is also scalable and secure. With my experience in PHP, MySQL, and inventory management systems, I can ensure the data processing is efficient and handles large files without timeouts. Implementing a background queue for processing and an admin dashboard for tracking upload history will enhance usability and reliability. I’ve successfully completed similar projects and can provide examples upon request. Looking forward to bringing your vision to life! Best regards, Saba Ehsan
£500 GBP på 5 dage
6,6
6,6

Hello, With over 7 years of experience in Data Processing and Excel, I have carefully read the requirements for the project. I propose to develop a custom WordPress plugin for the AI-Assisted Bulk Inventory Upload System for your aviation marketplace. I will create a robust system that allows suppliers to upload their inventory using a structured Excel template, validate data, apply deduplication logic, process files in the background, and automatically update listings within WordPress. The plugin will have strict validation, background queue processing, secure architecture, and an admin dashboard for monitoring upload history and error handling. It will handle large files reliably and include supplier confirmation emails. I am confident in my ability to deliver a scalable solution that meets your specifications. Let's discuss further details in chat to ensure the project's success. You can visit my Profile: https://www.freelancer.com/u/HiraMahmood4072 Thank you.
£275 GBP på 2 dage
6,2
6,2

Hello There!!! ★★★★ ( AI-Assisted Bulk Inventory Upload for WordPress ) ★★★★ I’ve reviewed your requirement for a scalable bulk inventory upload plugin for the Listivo-based aviation marketplace. You need Excel-driven imports, strict deduplication, background processing, and automated listing creation with strong validation and logging. Services mentioned here based on project details ⚜ Custom WordPress plugin architecture ⚜ Excel (Engines + Spares) parser & validation ⚜ Advanced deduplication logic implementation ⚜ Background queue processing for large files ⚜ ZIP image handling with default fallbacks ⚜ Admin dashboard with logs & error tracking ⚜ Supplier confirmation email automation With 9+ years in WordPress and data-heavy systems, I’ve built high-volume import tools and marketplace workflows. I’m very carefull about data integrity and performance. My approach uses WP background processing, secure file handling, MySQL indexing, and clean modular plugin structure for future scale. Happy to review your spec doc and start planning. Warm Regards, Farhin B.
£256 GBP på 15 dage
6,5
6,5

Hello, I hope you're doing well! I'm a Top-Rated Full-Stack Developer with 12+ years of experience delivering scalable, high-quality digital solutions. I’ve completed 100+ projects across Node.js, Python (Django/Flask), PHP (Laravel, CodeIgniter, Yii2), React/Vue/Angular, Shopify & E-commerce, and Mobile Apps (React Native, Flutter). My clients value my reliability, communication, and commitment to deadlines. Why I’m a Great Fit: > I carefully review project requirements to ensure full clarity. > I deliver clean, maintainable, and scalable code. > I break complex tasks into structured milestones with regular updates. > I work seamlessly across time zones using Jira, Asana, and Basecamp. What I Can Deliver: > Full-Stack Web & Backend Development (APIs, Platforms) > E-commerce & Marketplace Solutions (Shopify, WooCommerce, Magento) > Mobile Apps (React Native, Flutter) > AI/ML Integrations, Chatbots & Analytics > DevOps (AWS, Docker, CI/CD), Testing & QA > UI/UX Support & Technical Consulting My Approach: > Requirement Analysis & Scope Confirmation > Clear Timeline with Defined Milestones > Iterative Development with Demos > Thorough Testing & Final Delivery > Post-Launch Support Best regards,
£750 GBP på 8 dage
6,1
6,1

Crawley, United Kingdom
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