I will build a scalable saas backend with nodejs postgresql stripe and auth


Level 2
About this gig
Need a SaaS or AI backend that survives real users, real payments, and real investor scrutiny?
You don't need "just an API." You need a backend that won't get rewritten in 6 months.
That's what I build.
What you walk away with:
- Production auth JWT, RBAC, session security done right
- Cleanly modeled Postgres or MongoDB schema (designed, not improvised)
- Documented REST API + Swagger / Postman collection
- Stripe integration with idempotent webhooks (no double charges, ever)
- AI integrations with rate limits + token tracking (OpenAI / Claude / RAG)
- Background jobs, Redis caching, and realtime where it matters
- Deployed live with CI not "works on my laptop"
- Source code, README, and handover so your next dev ships day one
Stack: Node.js · Express · NestJS · FastAPI · Next.js · PostgreSQL · MongoDB · Redis · Stripe · Socket.io
Best for: founders and early-stage startups who want their backend built once, properly.
Message me before you order. Send a short project summary and I'll confirm scope, recommend the right tier, and give you a realistic delivery date no charge, no commitment.
Let's build it right the first time.
Get to know Faridul Islam
Senior Full Stack Engineer, SaaS and Scalable Web and Mobile Apps
Level 2
- FromBangladesh
- Member sinceAug 2022
- Avg. response time1 hour
- Last delivery2 days
Languages
Bengali, English, Hindi
Other Software Development Services I Offer
FAQ
Can you help if I only have an idea?
Yes. I can guide backend structure for MVP.
Can you work with my frontend developer?
Absolutely. I design APIs ready for integration.
Can this scale in the future?
Yes. I build backend systems structured for growth.

