With over 18 years of experience in China sourcing, I specialize in comprehensive supply chain solutions, product sourcing, and export services tailored for global businesses and Amazon sellers. I offer expertise in manufacturer coordination, quality inspection, logistics management, and price negotiation to help you secure the best deals while maintaining high product standards. As your trusted sourcing partner in China, I connect you directly with verified suppliers, ensuring a smooth and risk-free sourcing experience.
⫷ What I Offer ⫸
✔ Reliable Product Sourcing – Direct access to factories, eliminating unnecessary middlemen.
✔ Supply Chain Optimization – Efficient logistics solutions, including DDP shipping worldwide.
✔ Competitive Price Negotiation – Maximizing your profit margins with factory-direct pricing.
✔ Fraud Prevention & Supplier Verification – Rigorous background checks to avoid scams.
✔ Product Customization – Sourcing and developing unique products tailored to your needs.
✔ Quality Assurance – Pre-shipment inspections and compliance with AQL standards.
✔ End-to-End China Sourcing Solutions – From prototype development to final delivery.
➡️ Why Work With Me?
🔹 Experienced China Sourcing Agent – Successfully handled 100+ sourcing projects for Amazon FBA sellers and global clients.
🔹 Fluent in Chinese & English – Strong negotiation skills and deep understanding of Chinese business culture.
🔹 Transparent Communication – Regular updates and supplier details shared via Google Sheets.
🔹 Focus on Supply Chain Efficiency – Ensuring smooth logistics, cost savings, and quality control.
🔹 Expert in Custom & OEM Products – Guiding you from product concept to mass production.
Let’s Elevate Your Business with Smart China Sourcing!
By partnering with a professional sourcing agent in China, you gain a local expert who streamlines your sourcing process, minimizes risks, and helps you scale efficiently. Contact me today to discuss your product needs—I’ll handle the sourcing, so you can focus on growing your business!
📍 Based in Guangzhou, China | 🚀 DDP Shipping Available Worldwide
Alibaba Sourcing
Freight Forwarding
Dropshipping
Sourcing
1688.com
Product Sourcing
Supplier Search
Price & Quote Negotiation
Factory & Supplier Auditing
Amazon FBA Product Research
Quality Inspection
Contract Manufacturing
Amazon FBA
Logistics Management
Transportation & Warehousing
Xin Z.
Shanghai, China
$60/hr
5.0
103 jobs
🚀 Turn your product idea into a clear, buildable prototype direction — before you spend time and money on the wrong approach.
Many early-stage hardware products fail not because of bad ideas, but because key engineering decisions are made too late or based on incorrect assumptions.
I help founders and product teams define the right path early:what to build, how to build it, what to test first, and what to avoid.
🧭 Start here (recommended)
If your idea is still evolving or unclear, I recommend starting with a focused feasibility and validation phase.
In this phase, we will:
• clarify your product concept, constraints, and target use• identify key mechanical, electronic, and manufacturing risks• define a practical prototype direction• determine what needs to be validated before major investment
This helps avoid unnecessary iterations and costly mistakes before moving into detailed design, tooling, or production.
🔧 What I do
I support early-stage product development from idea to validated prototype:
• concept clarification and constraint definition• mechanical architecture and functional-system direction• enclosures, small mechanical systems, and functional assemblies• feasibility and prototype-stage manufacturability evaluation• CAD development in Fusion 360• prototype strategy and iteration planning• supplier communication and manufacturing-feedback coordination• engineering decision support before major investment
Rather than only delivering CAD, I help you understand the full path:
idea → prototype → validation → next step
⚡ Accelerated exploration
I use AI-assisted workflows and 3D tools to improve concept exploration, design communication, and workflow efficiency.
AI is used mainly for repetitive supporting tasks. Professional engineering decisions are checked in CAD and validated through physical prototypes, supplier feedback, and real manufacturing constraints.
🏭 From digital to physical
I operate a small 3D-printing farm, allowing fast development and testing of physical prototypes.
I can support:
• functional FDM prototype development• enclosure and mechanical validation• PCB fit and assembly checks• small-batch prototype builds• real-world testing and iteration• prototype refinement before supplier quoting or higher-volume production
When appropriate, I combine proven off-the-shelf components with new design work to reduce development time, technical risk, and production cost.
📡 Connected-product prototypes
I can also support proof-of-concept connected hardware development, including:
• ESP32-based Bluetooth and Wi-Fi functionality• integration of different sensors• basic iOS companion-app prototypes• rapid testing of hardware and software interaction
This is useful for validating a smart-product idea before investing in custom electronics, certification, cloud services, or a full engineering team.
🎯 What you actually get
• a clear and practical product direction• early identification of risks and constraints• a structured path from idea to functional prototype• CAD and prototype files within the agreed scope• confidence in your next technical and manufacturing steps
Not just design — but clarity on what should, and should not, be built.
🧠 Typical projects
• consumer products and smart devices• connected-product proof-of-concepts• ESP32, sensor, Bluetooth, and Wi-Fi prototypes• enclosures and functional mechanical systems• hardware startup prototypes• proof-of-concept builds• early-stage product validation• small-batch 3D-printed products
📦 How I typically work
Most projects begin with a focused validation phase before moving into full design.
This ensures:
• the right direction is defined early• risks are identified upfront• time and budget are used efficiently• prototype testing informs the next design stage
For suitable projects, I can support the full early-stage development path: concept clarification, mechanical and connected-prototype design, functional testing, 3D-printed iterations, and small-batch prototype builds.
Projects can begin with a paid feasibility phase and then move forward through clear fixed-price milestones, depending on the scope and validation results.
📩 Next step
If you are exploring a new product idea and want to move forward with more clarity and fewer mistakes, please share:
• your product idea and target user• sketches, reference images, or an existing prototype• what you need to validate first• target quantity and intended manufacturing process, if known• approximate budget and timeline
I will help you identify the most practical next step.
Product Development
Industrial Design
Product Design
Prototyping
3D Modeling
CAD
Rapid Prototyping
Prototype Design
3D Printing
Firmware
Mechanical Design
Arduino
ESP32
Concept Development
Generative AI
Electronics
AI Consulting
Embedded System
Manufacturing
Artificial Intelligence
Lei Q.
Shenzhen, China
$34/hr
5.0
46 jobs
- 13 years of experience in the industrial design field.
- 100+ Launched products in the market.
- Master's degree in industrial design
- Certified SOLIDWORKS Professional mechanical designer (CSWP).
- The USA work experience in South Florida.
- 140+ IQ in problem-solving.
I also have experience and knowledge in other related fields like graphic design, web design, UX/UI design, photography, and animation to support my creativity.
I consider myself a great idea generator when offering solutions. I’m good at thinking outside the box and not being affected by those existing products.
📩 Contact me today, and let’s discuss how to bring your product to market.
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Keywords: Industrial Design, Product Design, Consumer Electronics, Electronic Device, Innovative Product, Physical Product Design, Amazon Product Development, House Appliance, Mechanical Engineer, Industrial Designer, Product Designer, Smart Device, Rendering, Ergonomics, Robotics, Eco-friendly Product, Sustainable Product, Consumer Goods, Product Assembly, Functional Product Development, Packaging Design, Cosmetic Packaging, Beauty Packaging, Perfume Packaging, Luxury Packaging, Sustainable Packaging, Packaging Engineering, Custom Packaging, Product Packaging, Packaging Manufacturing
Product Design
3D Modeling
Sketching
SolidWorks
3D Rendering
Manufacturing
Alex Z.
Suzhou, China
$20/hr
5.0
9 jobs
Hello,
Many startups and e-commerce brands struggle with unreliable suppliers, unclear manufacturing costs, and product designs that are difficult to produce.
I help turn product ideas into manufacturable products and reliable supply chains in China through professional product development and product sourcing.
Unlike typical sourcing agents who only locate suppliers, I combine product design expertise with manufacturing and supplier sourcing to evaluate product structure, materials, feasibility, and cost to identify the right suppliers and production solutions.
I support the entire process from product idea → product sourcing & supplier research → prototype development and testing → manufacturing preparation → quality control → fulfillment and global delivery.
Why clients work with me
I provide product sourcing, supplier research, and product development services for clients who want to manufacture products in China.
✔ Reliable supplier sourcing in China – Structured supplier research with clear comparison reports to help clients choose the right manufacturing partner.
✔ Product design and manufacturing expertise – Ability to evaluate product structure, materials, and production feasibility.
✔ DFM-driven product development – Optimize designs for efficient and cost-effective factory production.
✔ Prototype testing and iteration – Support prototype development and design improvements before mass production.
✔ End-to-end supply chain support – From product idea and sourcing to manufacturing, quality control, and delivery.
✔ Dropshipping and fulfillment services – Support order handling, customized packaging, labeling, and global shipping for e-commerce brands.
What I can help you with
- Product Sourcing
• Supplier research and identify reliable manufacturers in China
• Supplier background investigation and credibility verification
• Supplier comparison report (price / MOQ / lead time/capabilities)
• Product market price analysis to evaluate competitive cost ranges
• Supplier negotiation and cost optimization
- Product Development
• Product design evaluation
• 3D modeling and design support (SolidWorks)
• Structural optimization and material recommendations
• DFM (Design for Manufacturing) analysis
• Manufacturing feasibility assessment
• Development of factory-ready production solutions
The goal is to transform concepts into designs that can be manufactured efficiently and cost-effectively. I don’t just design parts — I design products that factories can actually build, and customers will buy.
- Prototype and design iteration
• Prototype strategy planning
• 3D printed prototypes or sample coordination(FDM/SLM/SLA/CNC/Laser cutting)
• Functional testing and evaluation
• Design iteration based on test results
• Optimization until the product is ready for stable mass production
This iterative process helps reduce production risks before tooling or large manufacturing investment.
- Quality & Delivery
• Product inspection and quality evaluation
• Production monitoring and supplier coordination
• Packaging solution recommendations
• Customized packaging and private label support
- Dropshipping and order fulfillment
• Dropshipping agent service
• Order fulfillment and product handling
• Packaging and labeling for e-commerce brands
• Global shipping coordination
These services are ideal for brands selling through platforms such as:
• Amazon
• Shopify
Product Experience:
• Industrial & consumer products | Fitness equipment | Electronics enclosures | Food-related hardware | Home furnishings | Tools
My typical workflow
Step 1 – Product understanding
Understand your product concept, target market, cost expectations, and production requirements.
Step 2 – Supplier sourcing & market analysis
Research qualified manufacturers, analyze supplier capabilities, and prepare a structured sourcing and price analysis report.
Step 3 – Product design optimization
Evaluate the product structure and apply DFM principles to ensure the design can be efficiently manufactured and is cost-effective.
Step 4 – Prototype & testing
Develop prototypes or samples, perform testing, and design iterations to validate performance and manufacturability.
Step 5 – Manufacturing preparation
Select the most suitable supplier and prepare the production plan, including drawings, materials(BOM), tooling, and manufacturing process.
Step 6 – Production, quality control & delivery
Support production follow-up, quality inspection, customized packaging, and shipping or dropshipping fulfillment.
What software do I use
- Microsoft Office
- AutoCAD
- SolidWorks
-CorelDRAW
-Bambe studio
I worked with startups, Amazon sellers, and Shopify brands looking to develop or source products in China. If you need help sourcing, developing, or manufacturing products in China.
👉 Message me now and tell me about your product idea.
Let’s discuss how I can help bring your product from idea to reliable manufacturing.
Best Regards,
Alex Zou QiuJin
Product Development
Design for Manufacturing
Product Design
3D Modeling
SolidWorks
Autodesk AutoCAD
3D Printing
Manufacturing Engineering
2D Drawing
Product Sourcing
Supplier Search
Prototype Design
Injection Mold
Supply Chain Management
Quality Control
Laser Cutting & Engraving Software
Patent Drawing
Shopify
Order Fulfillment
Amazon
zheng ping Z.
Dongguan, China
$15/hr
4.9
2 jobs
Supplier Sourcing I Product Sourcing | Quality Control & Inspection | Warehousing | Logistics | Virtual Assistance (China-Based)
$15.00/hr
Hi there, I’m Zhu from Sheryl Supply Chain Services—a top-rated Upwork freelancer with a 100% Job Success score. Based in Dongguan, Guangdong Province, I’m strategically located near major manufacturing hubs: Shenzhen, Guangzhou, Huizhou, and Zhongshan. With over 10 years of experience as a China-based sourcing specialist, I bring deep expertise in connecting global clients with reliable factories and products.
What I Do Best:
I source products across B2B/B2C platforms (Alibaba, Made-in-China, Global Sources, 1688, Taobao, Pinduoduo, JD) and social channels (Douyin/TikTok, Xiaohongshu, WeChat) to identify authentic manufacturers—not middlemen. I’m skilled at negotiating with suppliers, analyzing costs, and ensuring you get the best balance of quality and price.
As a sample inspector, I specialize in evaluating furniture, home goods, electronics, crafts, seasonal gifts, and more. Following AQL 2.5 standards, I check for appearance, dimensions, structure, functionality, packaging, and shipping readiness. You’ll get a detailed inspection report with photos and videos within 3 business days.
For dropshipping and logistics support, I offer short-term warehousing and fulfillment services (priced in RMB):
• Warehousing: ¥8 per CBM per day
• Label replacement: ¥1.5 per label (includes materials/labor for standard black-and-white stickers; minimum ¥30 per order; complex labels quoted separately)
• Carton replacement: ¥5 per carton (carton materials extra)
• Sorting & distribution: ¥1 per carton
• Printing: ¥2 per sheet
• Palletizing: ¥150 per pallet (includes 120x100x180cm pallets)
(Other services not specified herein shall be quoted upon separate discussion.)
Centralizing your goods in my warehouse cuts logistics costs by streamlining shipments to freight providers.
As your shipping agent, I’ll find the optimal method—sea, air, rail, or truck—prepare all necessary documents, and track your shipment until it reaches its destination.
How I Work:
I’m fluent in tools like Google Drive, Slack, WhatsApp, Discord, WeChat, and email, making remote collaboration seamless. I’m detail-obsessed, great at managing timelines, and thrive both independently and in teams. Meeting deadlines and delivering quality work isn’t just a goal—it’s my standard.
My Services Include:
• Sourcing products for product development
• Arranging sample orders + detailed quality reports (with photos/videos)
• Collecting samples and coordinating logistics
• FNSKU label printing (if needed)
• Identifying emerging products in China
• Vetting new suppliers and negotiating lower costs
• On-site inspections for new orders
• Supplier background checks
• End-to-end purchasing and logistics coordination
• Timely communication and delivery
• E-commerce product photography
If you’re looking for a reliable partner in China to streamline your supply chain, feel free to reach out—I’m here to help.
Product Sourcing
Quality Control
Factory & Supplier Auditing
Customer Care
Virtual Assistance
FreeAgent
Management Consulting
Translation
Business Consulting
Purchasing Management
Ecommerce Purchase Tracking
Dropshipping
Test Report
Quality Inspection
Na Z.
Wuxi, China
$48/hr
5.0
7 jobs
I help companies turn product ideas into functional, manufacturable designs — from concept development and 3D CAD modeling to prototype-ready solutions.
With 20 years of experience in product development and manufacturing environments in China, I bring practical engineering knowledge from injection molding, tooling, and production processes into every project.
My strength is not only creating CAD models, but understanding how products will actually be manufactured, assembled, and improved before moving into production.
My professional background includes:
• 7+ years in injection mold design and tooling development
• 5+ years in plastic product design and mechanical engineering
• 6 years managing engineering projects and localization programs
• Experience working with international customers, suppliers, and manufacturing teams
My services include:
◆ Plastic Product Development
- Concept development and mechanical design
- 3D CAD modeling (Siemens NX)
- Product structure optimization
- Prototype-ready design
- Design improvement based on function, assembly, and manufacturability
◆ Design for Manufacturing (DFM)
- Plastic part design review
- Wall thickness, rib, boss, snap-fit optimization
- Draft angle and molding considerations
- Material and process recommendations
- Risk identification before tooling
◆ Injection Molding & Manufacturing Support
- Mold feasibility review
- Tooling risk assessment
- Technical communication with manufacturers
- Prototype and engineering change support
I have worked on projects including industrial components, plastic products, and consumer products where practical engineering decisions are critical.
If you need an engineering partner who understands both product design and manufacturing realities, I would be happy to discuss your project.
Product Development
Design for Manufacturing
3D Modeling
Injection Mold Design
Plastic
Siemens NX
Contract Manufacturing
Cost Management
2D Drafting
Moldflow
Time & Cost Estimate
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