Amazon Marketplace Management
Hands-on Amazon Seller Central support across listings, catalog, cases, buyer messages and daily marketplace operations.
- Seller Central support
- Listing management
- Case creation & handling
- Buyer & feedback support
E-Commerce • Data • Operations • Growth
Amazon & Marketplace Operations That Keep Your Business Moving.
Reliable Amazon Seller Central, E-Commerce, Data & Operational Support for Growing Businesses.
GNK Marketplace Solutions specialises in Amazon Seller Central and marketplace operations - helping Amazon sellers, e-commerce businesses, agencies and growing companies manage listings, catalog data, inventory and shipping workflows with scalable operational support.
Supporting businesses worldwide with hands-on marketplace expertise and scalable operational support.
0+
Years of Amazon Seller Central & Project Management experience
0+
Years of e-commerce & digital project experience
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Clients supported
0+
Projects handled
0+
Products & records processed
10
Member team available for scalable support
Amazon Expertise
Built Around Real Amazon Operations
Expertise that comes from hands-on marketplace workflows - not theoretical consulting.
From research to shelf - and support after.
GNK works across the day-to-day activities that keep Amazon operations running: researching and validating products, managing listings and catalog data, preparing shipping plans and FNSKUs, supporting buyers and cases, and reporting on what matters.
Every capability below reflects work performed across real Seller Central operations - structured, reviewed and quality-checked before delivery.
See operational case studiesSTEP 01Research
STEP 02Validate
STEP 03List
STEP 04Ship
STEP 05Support
STEP 06Report
ASIN Research
Product Matching
Listing Management
Seller Central Operations
FNSKU Management
Shipping Plans
Catalog Validation
Inventory Support
Buyer Support
Sales Reporting
Case Management
Quality Control
Our Services
Solutions Built Around Your Operations
From marketplace management to data-driven digital support, GNK provides flexible services designed around real operational requirements.
Product Research & Catalog Operations
Accurate product, ASIN, UPC, GTIN and EAN research with catalog validation and product matching.
- ASIN & product research
- UPC / GTIN / EAN checks
- Product matching
- Catalog data validation
Inventory & Shipping Operations
Shipping plans, FNSKU processing, labels and documentation delivered through quality-controlled workflows.
- Shipping plan support
- FNSKU processing
- Product & shipment labels
- Shipping documentation
E-Commerce Data & Back-Office Support
Structured data processing, validation, reporting and back-office support using Excel and Google Sheets.
- Data processing & cleaning
- Excel & Google Sheets
- Sales reports & invoicing
- Quality checking
Digital Marketing
SEO, content, social media, paid ads, landing pages and marketing automation for e-commerce brands.
- SEO & local SEO
- Social media management
- Meta & Google Ads
- Landing pages
Creative & AI Services
Website design, AI-assisted content, image and video creatives plus supporting digital assets.
- Website design
- AI content creation
- Image & video creatives
- Digital assets
Why GNK
Why Businesses Choose GNK
Practical experience, clear processes and dependable communication across every engagement.
Hands-On Marketplace Experience
Practical experience across real Amazon and e-commerce workflows, not just theoretical knowledge.
Flexible Engagement
Support for one-time assignments, ongoing operations and outsourced projects.
Scalable Team
Individual specialist attention backed by a 10-member team when additional capacity is required.
Quality-Focused Execution
Structured review and validation processes designed to maintain accuracy.
Clear Communication
Reliable project updates and transparent communication throughout delivery.
Client-Focused Approach
Processes adapted to each client's requirements instead of a one-size-fits-all service.
Case Studies
Experience Across Real Marketplace Operations
Selected examples of the operational work GNK has delivered - shown without any confidential client information.
Case Study 01
ASIN Research & Product Matching
Research and validation of relevant Amazon products using UPC/product information, titles, seller information and marketplace data.
ASIN research
Product matching
Data quality checks
View full case study
Case Study 02
Amazon Shipping & FNSKU Operations
High-volume shipping workflows involving SKUs, FNSKUs, product information, labels, shipment documentation and validation.
Shipping plans
FNSKU management
Quality control
View full case study
Case Study 03
Product Catalog & Listing Operations
Product listing creation, catalog maintenance, product information validation and Seller Central operational support.
Listing creation
Catalog updates
SKU/FNSKU operations
View full case study
About GNK
Our Story
"Built on Experience. Driven by Quality. Focused on Client Success."
The journey behind GNK Marketplace Solutions began in 2019 with a clear goal: to provide reliable, accurate and scalable operational support to businesses navigating Amazon and e-commerce. What started with hands-on Amazon Seller Central operations gradually expanded into product and catalog management, ASIN and product research, inventory and shipping support, data processing, reporting, quality control and project management.
Today, GNK combines 7+ years of Amazon Seller Central and project management experience with 5+ years across e-commerce, data, research, digital and related operational projects - supporting clients internationally as a dependable extension of their operations.
7+
Years of Amazon experience
27+
Clients supported
100+
Projects handled
Meet the Founder
Naveen Kumar G
Founder & Marketplace Operations Specialist
Naveen Kumar G brings 7+ years of hands-on experience in Amazon Seller Central management and project management, combining practical marketplace execution, structured project management and client-focused communication.
Meet Naveen Kumar GProcess
A Simple, Reliable Process
A clear five-step method that keeps every project structured, reviewed and on track.
01
Understand
We learn the client's requirements, goals, workflow and expected deliverables.
02
Plan
We define the process, responsibilities, priorities and quality requirements.
03
Execute
The project is handled using structured operational workflows.
04
Quality Check
Work is reviewed and validated before final delivery.
05
Deliver & Support
Results are delivered clearly, with communication and ongoing support where required.
Engagement
Ways to Work With GNK
Engagements scale to match your needs - from a focused task to an ongoing outsourced operations function.
One-Time Projects
For focused marketplace, research, data or digital requirements.
Ongoing Operational Support
For businesses requiring regular marketplace and back-office assistance.
Dedicated Outsourcing Support
For agencies and companies requiring scalable long-term operational capacity.
No fixed pricing displayed - every engagement is scoped to the project.
Capabilities
Tools Behind Our Work
A focused set of platforms and technologies actively used across GNK project workflows.
Amazon Seller Central
Microsoft Excel
Google Sheets
Adobe Acrobat
SQL
Python
Basic Data & Automation Support
Dedicated tools are added as project requirements evolve.
Let's Get Started
Ready to Strengthen Your Marketplace Operations?
Whether you need support for a focused project or an ongoing outsourcing partnership, let's discuss how GNK Marketplace Solutions can support your business.