How We Build Scalable Backends Using AWS — A Simple Guide for Founders

At LNBees, we design cloud backends that grow smoothly from MVP to enterprise scale. This article explains how we choose the right AWS architecture depending on your product stage.

Why Architecture Matters

Many startups fail not because the idea is bad, but because the tech cannot scale. AWS offers multiple ways to run a backend — Lambda, App Runner, Fargate — each ideal for different phases.

The 3 Architecture Options

1. Serverless (AWS Lambda)

Best for MVPs. Lowest cost. No servers. Ideal for low-to-medium traffic and rapid development.

2. App Runner (Managed Containers)

Perfect for SaaS apps. Runs containers without DevOps overhead. Consistent performance and great for AI integrations.

3. ECS Fargate (Enterprise Grade)

Most scalable option. Complete VPC control, multi-service systems, high-performance workloads.

Our Recommendation Strategy

• MVP: Lambda
• SaaS / SMEs: App Runner
• Enterprises & High Traffic: Fargate

Need help choosing the right architecture? We can guide you.