Revenue-ready SaaS for post-seed startups
You validated demand. Now you need auth, payments, and serverless infrastructure in an AWS account you control. The Core Engine is a fixed-price SaaS platform delivered in weeks, not open-ended agency hours.
What does a fixed-price MVP on AWS include?
The Core Engine deploys to your AWS account with Cognito auth, serverless APIs (Lambda, AppSync, DynamoDB), CloudFront hosting, and admin tooling. You own the codebase and pay AWS usage directly. Scope is fixed around Full SaaS or Scale tiers. Add The AI Cortex later when you need document-grounded intelligence.
Which product fits your stage
| Stage | Product | Outcome |
|---|---|---|
| Fundraising / pre-revenue | The Starter Engine | Minimum production system on your AWS account |
| First customers / revenue | The Core Engine | Serverless SaaS with auth, payments, and admin in your AWS account |
| Owned enterprise AI | The AI Cortex | Bedrock RAG pipelines and guardrails in your AWS account |
Signals you have outgrown no-code or freelance patches
Founders call us when pilots want SSO, custom permissions, or API integrations their Bubble or Webflow stack cannot support. Another trigger is diligence: investors ask who owns production and the answer is unclear.
The Core Engine replaces patchwork with auth, billing, and serverless APIs in your AWS account. Scope is fixed before kickoff so finance can plan spend without hourly drift.
Upgrading from The Starter Engine
Many post-seed teams start on The Starter Engine and extend the same React codebase into Full SaaS or Scale on The Core Engine. That avoids a rebuild between fundraising and growth.
If you already have paying pilots, we scope Full SaaS or Scale from your workflow list. Book a demo with integrations and timeline.