Freelance › Projects › Web development › Next.js SaaS Boilerplate: Auth, Billing, Admin & Multi-Tenancy
Next.js SaaS Boilerplate: Auth, Billing, Admin & Multi-Tenancy
Employer
Mykola
Project parameters
Type of cooperationOne-time project
SectionWeb development
Prepaymentwithout prepayment
Payment methodsCash, Bank transfer
Acceptance of requestsfrom today, 02:52 until Aug 28, 2026
Project description
We're launching a new B2B SaaS product and need a solid boilerplate to start from. The goal is a feature-complete starter that we can build our product features on top of — not a toy demo, but production-ready code.
Core Modules
1. Authentication & Authorization
— NextAuth.js v5 with email/password, Google, GitHub providers
— Email verification and password reset flow
— Role-based access: Super Admin / Org Admin / Member
— Session management with refresh token rotation
2. Multi-Tenancy
— Organization model: each user belongs to one org
— Data isolation at DB level (org_id on all tenant tables)
— Invitation flow: email invite → accept → join org
— Org settings page: name, logo, billing, members list
3. Billing & Subscriptions
— Stripe Billing: monthly/annual plans, free trial
— Webhook handler: checkout.session.completed, subscription events
— Usage metering (seats-based)
— Customer portal for self-service billing
— Upgrade/downgrade/cancel flows
4. Admin Panel
— Super admin: manage orgs, impersonate users, feature flags
— Usage metrics: MRR, churn, active users
— Email broadcast to segments
5. Infrastructure
— Prisma ORM + PostgreSQL
— Resend for transactional email
— Vercel deployment config
— GitHub Actions CI: lint, typecheck, tests (Vitest)
— Feature flags via Vercel Edge Config
Deliverables: GitHub private repo, full README with local setup, production checklist.
Budget: $420 fixed. Timeline: 18 days.
Core Modules
1. Authentication & Authorization
— NextAuth.js v5 with email/password, Google, GitHub providers
— Email verification and password reset flow
— Role-based access: Super Admin / Org Admin / Member
— Session management with refresh token rotation
2. Multi-Tenancy
— Organization model: each user belongs to one org
— Data isolation at DB level (org_id on all tenant tables)
— Invitation flow: email invite → accept → join org
— Org settings page: name, logo, billing, members list
3. Billing & Subscriptions
— Stripe Billing: monthly/annual plans, free trial
— Webhook handler: checkout.session.completed, subscription events
— Usage metering (seats-based)
— Customer portal for self-service billing
— Upgrade/downgrade/cancel flows
4. Admin Panel
— Super admin: manage orgs, impersonate users, feature flags
— Usage metrics: MRR, churn, active users
— Email broadcast to segments
5. Infrastructure
— Prisma ORM + PostgreSQL
— Resend for transactional email
— Vercel deployment config
— GitHub Actions CI: lint, typecheck, tests (Vitest)
— Feature flags via Vercel Edge Config
Deliverables: GitHub private repo, full README with local setup, production checklist.
Budget: $420 fixed. Timeline: 18 days.
