Source: AWS Architecture Blog — 2026-06-29
Summary
AWS published a customer architecture retrospective on ProGlove, a wearable barcode-scanning company, describing how its "Insight" platform grew from thousands to over a million Lambda functions using a one-AWS-account-per-tenant model for security, cost, and ownership isolation. The case study serves manufacturing, logistics, and retail customers who need real-time frontline-worker process visibility at serverless scale.
Key Takeaways
- Uses one AWS account per tenant as the core isolation boundary for security, ownership clarity, and cost transparency.
- Relies heavily on CloudFormation StackSets to automate consistent deployments across hundreds of thousands of accounts.
- Aggressive scale-to-zero policies keep idle cost below $1/month per tenant account.
- Key lessons cited: true scale-to-zero design, proactive service-quota management, close collaboration with AWS service teams, and a mono-repo to enforce consistency across accounts.