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We are looking for an experienced developer to implement advanced bulk product management features for a high-end eCommerce platform built with Node.js backend, React admin dashboard, and MySQL database. The implementation must be done very carefully to ensure existing product data integrity is never affected except for the fields explicitly modified through the uploaded Excel files. # Feature 1: Bulk Edit Product Details via Excel Requirements: * Export product details from the admin dashboard under the Product Bulk Upload & Edit section. * Exported Excel must contain: * Product ID * Product Name * Category * Brand * Variants * Variant Cost * Variant Price * Variant Special Price * Variant Special Price Date Range * Variant Shop SKU * Variant Seller SKU * Variant Weight * Variant Status (Active / Inactive) Import & Update Logic: * Admin should be able to modify the Excel file and re-upload/import it through the dashboard. * System must update only modified values. * Blank cells or unchanged values must be ignored completely. * Editable fields: - Variant Cost - Variant Price - Variant Special Price - Variant Special Price Date Range - Variant Weight # Feature 2: Bulk Add Products to Sales Campaign via Excel Requirements: * Export active product details from within the Campaign section. * Export structure should be similar to the product bulk edit file. Additional Columns: * Campaign Price (per variant) * Campaign Stocks (Flash Sale only) Import Logic: * Re-upload Excel file to add/update products into campaigns in bulk. * Products and variants should be mapped accurately using IDs/SKUs. * Campaign stock handling should apply only for Flash Sale campaigns. ## Critical Requirements * Must not break or overwrite existing product data. * Only fields modified in Excel should be updated. * Must handle large datasets efficiently. * Proper validation, error handling, and transaction safety required. * Experience with Node.js, MySQL bulk operations, Excel parsing, and complex eCommerce systems is required. Please share: * Relevant past experience * Similar projects completed * Proposed implementation approach * Estimated timeline and cost
Project ID: 40462565
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146 freelancers are bidding on average $466 USD for this job

Hello, I’m interested in improving your Wix home page with a focused audit-first approach followed by structured design and conversion optimization. I understand the priority is not a full rebuild, but a targeted upgrade to navigation, visual hierarchy, CTAs, and mobile experience while keeping the site stable and live. I will start with a concise audit identifying layout issues, UX gaps, performance concerns, and conversion blockers, followed by clear, actionable recommendations. After alignment, I’ll implement improvements directly in the Wix Editor, including a cleaner navigation structure, improved typography and color balance, optimized imagery, and redesigned high-contrast CTA buttons with trackable links. I will ensure the desktop experience is visually strong and consistent, then extend the same quality to mobile breakpoints, including proper social sharing metadata and optimized preview behavior. If needed, I can also set up SMS opt-in elements in a compliant and user-friendly way to support engagement. All updates will be made carefully to avoid disruption to existing live pages, and I will provide a short handover guide explaining the changes and structure so your team can manage future updates easily. Budget and timeline can be discussed further based on the current Wix setup and scope of design improvements required. Warm regards, Harpreet Singh
$250 USD in 5 days
9.4
9.4

I can architect these advanced bulk product management features securely using Node.js, React, and MySQL, ensuring absolute data integrity. Implementation Approach: • Parsing & Validation: I will use exceljs to parse uploads. A strict delta-check algorithm will isolate explicitly modified fields (Cost, Price, Weight, etc.), ignoring blank or unchanged cells entirely. • Database Safety & Scale: I will utilize MySQL transactions and chunked bulk updates to handle large datasets efficiently. If any error occurs, the transaction rolls back, guaranteeing zero data corruption. • Campaign Logic: I will accurately map Campaign Price and Flash Sale stocks strictly to designated variants using precise SKU/ID mapping. Relevant Experience: I specialize in React/Node/MySQL eCommerce platforms and high-volume data processing: • ShopIsLive (BidMandi): Full-stack eCommerce platform handling complex catalogs. • Batch Processing Engine: Developed a robust engine processing 100k+ records per batch with exact Excel parity and auditability. • Senco Gold & Diamonds: High-end eCommerce catalog management. Timeline: 2 weeks (Week 1: Bulk Edit Module; Week 2: Campaign Module & QA). Let's connect to finalize the cost. Portfolio: https://www.freelancer.com/u/microlent ~ Rajesh
$650 USD in 30 days
9.3
9.3

⭐⭐⭐⭐⭐ Proposal Overview: CnELIndia proposes to implement robust bulk product & campaign Excel features for your Node.js + React + MySQL eCommerce platform, ensuring zero risk to existing data integrity. Feature 1: Bulk Edit Products: Develop export of product details (ID, Name, Category, Brand, Variants, Cost, Price, Special Price, Date Range, SKUs, Weight, Status). On re-upload, parse Excel with libraries like exceljs, update only explicitly modified editable fields (Cost, Price, Special Price, Date Range, Weight) via targeted MySQL queries, ignoring blanks/unchanged cells. Feature 2: Bulk Campaign Add: Enable export from Campaign section with added columns (Campaign Price, Stocks for Flash Sale). Support accurate mapping via IDs/SKUs, bulk insert/update with transaction safety, applying stocks only for Flash Sales. Approach: Use Node.js for efficient bulk processing with streams, MySQL transactions/upsert for safety, validation/error logging. Handle large datasets via batching. CnELIndia Support Steps: Requirement refinement call. Detailed tech design & timeline approval (2 weeks dev, 1 week testing). Iterative development with demos. Deployment, training & post-launch support. Timeline: 4-5 weeks. Cost: $3500-4500 (flexible based on scope). Experienced in similar eCommerce bulk ops projects with Node.js/MySQL. Ready to start.
$500 USD in 7 days
8.7
8.7

Hello, With a team of experienced and skilled developers here at My Software, we have spent years refining our expertise in JavaScript and Node.js. Our deep understanding of complex eCommerce systems, MySQL databases, and Excel parsing will make us a perfect match to implement your required bulk product management features for your Node.js based eCommerce platform. Having successfully executed numerous large-scale projects with similar demands, we understand the criticality of ensuring existing data integrity throughout the process. Our approach will be grounded in thorough validation, comprehensive error handling, and transactional safety. We will guarantee that only modified values are updated without affecting unmodified or blank fields. Being a client-focused organization, the turning point to all our projects remains providing precise solutions to each problem faced. Estimated to take an optimum timeline and at a moderate budget, working with us will ensure that your project is handled efficiently while not compromising on quality. Choosing us will guarantee a dedicated team ready to turn your eCommerce dreams into a reality for you and your business' new heights. Thanks!
$450 USD in 6 days
8.1
8.1

Hello there, I will build both bulk import features — product detail editing and campaign product assignment — with Excel export/import through your React admin dashboard, backed by safe MySQL transactions. For the update logic, I will implement a cell-level diff check against current database values before writing, so only genuinely changed fields trigger UPDATE queries. Each import will run inside a transaction with row-level validation — if any row fails (invalid SKU, out-of-range price, missing ID), the entire batch rolls back with a detailed error report. For large datasets, I will process rows in chunked batches to avoid memory spikes and query timeouts. Questions: 1) Which Excel parsing library does your current codebase use, or should I integrate one fresh — such as exceljs or xlsx? Looking forward to discussing further. Best regards, Kamran
$280 USD in 10 days
8.2
8.2

Hi there, I can implement these bulk excel features for your platform. Since you are dealing with a live MySQL database, the absolute biggest priority here is preventing accidental data overwrites and keeping the import process fast so it doesn't lock your database tables. For the implementation, I’ll use libraries like exceljs in Node.js to stream the data parsing, which keeps memory usage low even with large datasets. To ensure data integrity, the system will read the uploaded file, compare each row against the current database values, and only compile the fields that have actually changed. I will write these updates using bulk MySQL transactions, meaning if even one row corrupts midway through the import, the entire operation rolls back safely without corrupting any existing live data. I have built very similar bulk upload and stock synchronization modules for e-commerce admin panels before, so I'm well-versed in mapping complex variant relations using Product IDs and SKUs without breaking main listings. I’m available to start immediately. Could you let me know if your current server has a staging environment where we can test the imports safely first? Let's chat. Best, [Your Name]
$260 USD in 12 days
7.9
7.9

Hi, With my extensive experience as a full-stack engineer and a deep understanding of your project essentials, I am confident that I can deliver the perfect solution for your eCommerce platform. My skills in wide-ranging areas like backend development, data integration, and data processing, would prove invaluable for implementing the Bulk Product Management feature you need so urgently. I have extensive expertise with Excel parsing, crucial in developing intelligent systems that carefully examine only modified values in imported files, preserving data integrity by reserving unchanged and/or blank ones. Skills in Node.js and MySQL bulk operations will aid me in fast delivery even with very large datasets. I also guarantee robust error handling, proper validation and transaction safety not to mention complete support after project completion. Moreover, having built several complex web platforms similar to your high-end e-commerce site using Node.js as a backbone, React admin dashboard, and MySQL DB, testament to my familiarity with this stack architecture. Given my proven track-record of delivering on-time and within-budget projects plus the 30-day guarantee for after-launch support, hiring me is a choice that entails zero risks. Why don't we discuss further your estimated timeline and cost so we can get started? Thanks!
$250 USD in 10 days
7.9
7.9

⭐⭐⭐⭐⭐ Implement Advanced Bulk Product Management for eCommerce Platform ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and noticed you're looking for an experienced developer to implement bulk product management features. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects in eCommerce platforms. I will ensure data integrity while implementing the required features using Node.js, React, and MySQL. ➡️ Why Me? I can easily handle your bulk product management needs as I have 5 years of experience in Node.js and MySQL. My expertise includes Excel parsing, data validation, and eCommerce systems. Additionally, I have a strong grip on React for the admin dashboard, ensuring a smooth user experience. ➡️ Let's have a quick chat to discuss your project in detail. I can also provide samples of my previous work. Looking forward to connecting with you! ➡️ Skills & Experience: ✅ Node.js Development ✅ MySQL Database Management ✅ React.js for Admin Dashboard ✅ Excel File Handling ✅ Data Validation ✅ Bulk Data Operations ✅ API Development ✅ Error Handling ✅ Transaction Management ✅ eCommerce Solutions ✅ Software Testing ✅ User Interface Design Waiting for your response! Best Regards, Zohaib
$350 USD in 2 days
7.8
7.8

Hi, I have strong experience building bulk product management systems for large-scale eCommerce platforms using Node.js, React admin panels, and MySQL, including Excel import/export workflows with transaction-safe updates. ✔ Node.js + MySQL bulk processing ✔ Excel parsing/import systems (xlsx/exceljs) ✔ React admin dashboard integration ✔ Large dataset optimization & transactional safety ✔ Variant-based product architecture experience Implementation approach: • Create export modules for Product Bulk Edit and Campaign Management with structured Excel templates • Use Product IDs + Variant IDs/SKUs for accurate mapping • Implement selective field updates only — unchanged or blank cells will be ignored entirely • Wrap updates inside MySQL transactions to prevent partial corruption • Add validation layers for prices, weights, dates, and campaign rules • Optimize imports using batch processing/chunking for large datasets • Add detailed import logs, row-level error reporting, and rollback safety For campaign imports: • Support bulk campaign pricing updates • Apply campaign stock logic only for Flash Sale campaigns • Preserve all unrelated product data and variant configurations I can also provide: • Clean API architecture • Well-documented code • Admin-side progress/error feedback during imports • Thorough testing before deployment Available to start immediately. Best regards, M. Rizwan LA
$500 USD in 7 days
7.6
7.6

Hi I can implement the bulk Excel export/import features for your Node.js, React admin, and MySQL eCommerce platform with strong protection around existing product data integrity. I have experience with Node.js APIs, React admin dashboards, MySQL transactions, Excel parsing/generation, bulk database operations, SKU/variant mapping, and complex product/catalog management workflows. The main technical challenge is ensuring the import updates only explicitly editable and modified Excel fields while ignoring blank or unchanged cells without overwriting existing variant data. I can solve this by building a validation-first import pipeline with row-level diff checks, strict editable-field whitelisting, ID/SKU mapping, transaction-safe updates, and detailed error reporting. For campaign imports, I can map products and variants accurately, apply campaign price updates, and restrict campaign stock handling only to Flash Sale campaigns. I can also optimize the process for large datasets using batched reads/writes, temporary staging tables if needed, rollback-safe transactions, and admin-facing import summaries. The final implementation will include export templates, secure import APIs, dashboard integration, validation logs, and clear documentation for safe usage. Thanks, Hercules
$500 USD in 7 days
7.1
7.1

Hello, I can implement the Node.js + MySQL Excel export/import flow for bulk product edits and campaign product updates, with careful handling so only allowed changed fields are updated and blank or unchanged cells are ignored. I have experience with Node.js APIs, MySQL transactions, Excel parsing, bulk validation, SKU/ID mapping, and eCommerce admin workflows where data integrity is critical. My approach would be to add safe export templates, validate every uploaded row, compare values before updating, use transactions for rollback on errors, and keep campaign stock logic separate for Flash Sale campaigns. I am ready to begin immediately and would be happy to discuss the project in further detail. Thanks, Teo
$500 USD in 5 days
6.8
6.8

Hi there, We’ve developed several large-scale eCommerce platforms with complex product management features, including bulk import/export functionality. We understand the importance of data integrity and have implemented solutions that only update modified fields, leaving other data untouched. For your project, we can leverage our experience with libraries like PHPExcel and Laravel Excel to create a robust import/export feature that handles large datasets efficiently. We also have extensive experience with MySQL and can optimize queries to ensure fast processing. Let’s schedule a quick 10-minute call to discuss your project in more detail and see if I’m the right fit for your needs. I’m looking forward to hearing more about this exciting project. Best, Adil
$275 USD in 7 days
6.9
6.9

Hi there, I’ve read your Node.js + MySQL bulk import feature request for a high-end eCommerce platform, and I’m confident I can implement it without risking existing product data integrity. I’m interested in the project and I have several experiences with similar bulk update and Excel import workflows in Node.js, MySQL, and React dashboards, where data safety and transactional updates are critical. I’ll approach the bulk edit and campaign import in two tightly scoped phases: first, build export/import Excel templates with precise field mappings and validation, then layer in guarded update logic that only applies changes for non-empty cells, leveraging transactions and row-level checks to safeguard data. I’ll ensure the solution scales for large datasets, with chunked processing, robust validation, and clear error reporting so admins can correct issues quickly. I’ll start by outlining the data contracts, set up import/export endpoints, and implement transaction-safe bulk operations that respect the exact fields you listed, followed by thorough testing on staging. Best regards,
$555 USD in 17 days
6.5
6.5

I am an experienced freelancer in backend development, particularly in the JavaScript stack. I have worked on several complex eCommerce projects with similar requirements. Notably, I've proficiently used Node.js and MySQL for bulk product operations. My approach is to use transaction-safe mechanisms that preserve data integrity while efficiently handling large datasets. In terms of frontend, I'm skilled in React.js and can extend your existing React admin dashboard to seamlessly integrate the bulk edit and import functionalities you need. I can harness my knowledge of Excel parsing to develop a robust system that only updates modified values, ignores unchanged or empty cells while providing comprehensive error handling and validation. Ultimately, my aim here is to take your platform to the next level by delivering features that enhance efficiency and improve user experience. With my skill set and 24/7 support guarantee, I'm confident I can deliver this project not just as you envisioned it, but surpassing your expectations. Let's transform your eCommerce management with the bulk import features. The project is exciting, allow me to be part of it!
$500 USD in 7 days
6.6
6.6

the "only update modified fields, ignore everything else" requirement is the part that separates a careful implementation from a dangerous one. the naive approach, read every row and write every editable field, silently overwrites data that wasn't meant to change. the right approach is diffing the uploaded values against the current database state at the row level and only issuing UPDATE statements for cells where the value actually changed. that logic needs to be airtight before anything touches production data. built bulk import/export systems on Node.js + MySQL before with exactly this constraint, large Excel files parsed via SheetJS, row-by-row validation before any writes, MySQL transactions wrapping each batch so a failure midway doesn't leave half the data updated and half untouched, and a detailed error report returned to the admin showing exactly which rows succeeded and which failed with the reason. the transaction safety piece is non-negotiable on a platform where product pricing is involved, a partial write on variant prices is worse than no write at all. proposed approach: validation layer first, then the diff logic, then transaction-wrapped batch updates, then export generation, then the campaign feature on top of the same foundation. timeline for both features: 8 to 10 days. cost estimate: $600 depending on the complexity of the existing schema.
$600 USD in 7 days
6.1
6.1

Hello, I reviewed your requirement for Excel‑based bulk editing and campaign imports built on your Node.js, React, and MySQL stack. The need to update only modified variant fields while safeguarding existing product data is clear. I've delivered similar import/export engines for large eCommerce systems, including a 40k‑SKU bulk pricing module and a campaign mapping workflow that maintained strict transactional integrity. In projects like this, the real challenge is preventing silent data corruption when processing large spreadsheets, especially when variants share overlapping identifiers or when campaigns introduce conditional fields like Flash Sale stock. Ensuring clean diff‑based updates and safe rollback paths is the backbone of a reliable solution. I’ll implement structured Excel templates, build a comparison layer that detects only changed fields, and wrap all updates in MySQL transactions. I’ll also create variant‑level mapping logic using IDs/SKUs and optimize imports with batch operations to handle large datasets efficiently. Before starting, I need to confirm your expected file size range and whether campaign price rules differ by category. I can deliver the full implementation in a clean, documented, isolated module. Best regards, John allen.
$500 USD in 7 days
5.9
5.9

As a seasoned full-stack developer with over a decade of experience, I have successfully handled numerous projects that demanded intricate database operations and management like the one you're presenting here. Besides, I have robust expertise in Node.js, MySQL, and significant experience accommodating eCommerce clients with similar bulk product management needs. I understand how critical maintaining your existing data integrity is, hence my proposed implementation approach revolves around detailed Excel parsing and careful targeted updates to only modify data fields. My solution ensures that unchanged values are not overwritten nor your various product attributes get mixed up; You will be able to flawlessly update Variant Cost, Price, Special Price, Date Range, and Weight without any adverse effect on other fields or past records. In terms of timeline and cost, after an in-depth project analysis, I can commit to delivering this high-end feature within X weeks at a competitive budget of $X. I pride myself on clean code practices that align with industry standards resulting in optimized performance. Rest assured, there will be rigorous validation and thorough error handling bolstered by transactional safety measures. Plus, I'll leverage my knowledge of working efficently with large datasets to guarantee smooth execution even as your business grows. Let's connect and empower your eCommerce platform with this crucial proficiency!
$250 USD in 7 days
6.4
6.4

OVER 10 YEARS OF EXPERIENCE IN IT, HIGH QUALITY DELIVERY Hey there! Bulk Excel features like this usually go wrong when import logic treats the spreadsheet as the source of truth instead of a patch layer, so I’d build it around safe diff based updates where only explicitly changed editable fields are applied and everything else is ignored. That matters a lot in eCommerce because once variant pricing, date ranges, weights, and campaign assignments start moving in bulk, one careless import path can damage a lot of data very quickly. I’m comfortable with Node.js, MySQL, admin side bulk workflows, Excel parsing, validation layers, and transaction safe update logic, and I’d approach this by separating export format, import validation, preview or diff generation, and final apply step so the process stays predictable. For the campaign feature, I’d also make sure variant mapping is strict, flash sale stock logic is applied only where relevant, and failures are reported row by row instead of silently partially updating data. My focus would be data integrity first, performance second, and admin usability third, because if those are handled in that order the feature stays reliable even on larger datasets. If your current product and campaign schema is clean, this is a very workable implementation.
$500 USD in 7 days
5.8
5.8

⭐⭐⭐⭐⭐ + 100% Job Score freelancer Hi Client, thank you for this change to apply for your project. I’m interested in helping implement these bulk product and campaign management features for your eCommerce platform. I have experience working with Node.js, React, MySQL, Excel import/export workflows, and data-safe bulk operations in complex systems. My approach would be to build transaction-safe import logic with strict validation, SKU/ID-based mapping, and change-detection so only explicitly modified fields are updated while blank or unchanged values are ignored. For large datasets, I would use optimized batch processing and rollback protection to ensure product data integrity is never compromised. Campaign imports and Flash Sale stock handling would be implemented with careful rule validation and tested thoroughly before deployment. I’d be happy to discuss the current architecture, implementation plan, and realistic timeline after reviewing the existing system. Thank you for your time.
$500 USD in 7 days
5.8
5.8

Hi, I’m a full-stack developer with 10 years of experience building and extending large-scale eCommerce platforms using Node.js, React.js, MySQL, PHP, Laravel, and MERN technologies. Your requirements align well with my experience in bulk data workflows and high-volume catalog management. I can implement both Excel-based bulk product editing and campaign assignment with a strong focus on data integrity and safe update logic. My approach would be to build controlled export/import pipelines, compare imported values against existing records, update only permitted modified fields, ignore blank values, and process all changes within database transactions with rollback protection. Product and variant mapping will be handled through IDs/SKUs to avoid unintended overwrites. For performance, I’ll implement batch processing, validation layers, detailed import logs, and optimized MySQL operations to support large datasets reliably. Relevant eCommerce and bulk operation examples can be shared during discussion. Best regards
$250 USD in 7 days
5.8
5.8

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