Mojo Manager – Amazon Seller Compliance Infrastructure on AWS

MojoManager is a web-based sales order management platform designed for Amazon sellers to streamline operations. The challenge was to design and deploy a secure, scalable, and production-ready AWS infrastructure that could integrate with Amazon Seller Central while ensuring strict data security and cost efficiency.

Objective

To build a fully secure AWS architecture with private networking, high availability, and scalable compute resources while maintaining performance, compliance, and operational simplicity for the development team.

Architecture Overview

A secure AWS architecture was designed using a private VPC with isolated subnets for application and database layers. EC2 instances hosted the application behind an Application Load Balancer, while MongoDB was deployed in a secure replicated setup. CloudFront was used for CDN acceleration, and Route53 handled DNS routing. AWS WAF, security groups, and IAM roles enforced security, while S3 VPC endpoints enabled secure backups without internet exposure.

Tools & Technologies Used

AWS VPC, EC2, Bastian Host, MongoDB, ALB, CloudFront, Route53, S3, WAF, Security Groups, IAM, VPC Endpoints

Implementation Steps

Designed and configured a secure multi-tier VPC architecture with private subnets.
Deployed EC2 instances with auto-scaling capability for application hosting.
Set up MongoDB in a secure replicated environment for data reliability.
Configured Application Load Balancer for traffic distribution and high availability.
Integrated AWS WAF and Security Groups for application protection.
Implemented CloudFront CDN for improved performance and global access.
Configured Route53 for domain and DNS management.
Enabled S3 VPC endpoints for secure internal backup workflows.

Challenges Faced

Ensuring strict isolation of private resources while maintaining operational access.
Balancing security (no public exposure) with ease of deployment and debugging.
Managing secure access for developers without compromising infrastructure integrity

Troubleshooting & Solutions

Implemented bastion/Jump host architecture for controlled access to private resources. Used IAM roles with least privilege access instead of static credentials. Created detailed operational documentation to simplify debugging and maintenance in a fully private environment.

Outcome

Fully secure, private AWS architecture with no public exposure for critical components.
Highly scalable and fault-tolerant system design.
Improved performance using CloudFront and ALB Strong security posture with WAF, IAM, and network segmentation.
Production-ready infrastructure supporting business growth.

Key Learnings

This project strengthened expertise in AWS networking, secure architecture design, production-grade system planning, and troubleshooting complex multi-tier environments.