SaaS development: from billing to predictable scale

We design for recurring revenue: tenant isolation, permissions, payments, webhooks, and reporting — with a stack and delivery process your team can grow into without a rewrite next year.
What we cover
Product & domain model
Roles, plans, limits, onboarding, self-service, and admin — without inflating scope for later.
Payments & subscriptions
Acquirer integrations, invoicing, dunning, tax nuances — aligned with your finance team.
Reliability & growth
Queues, idempotency, tenant-aware scaling, SLO metrics, backups, and schema migration plans.
Your outcome
8–16
Weeks to MVP with billing and admin — typical first release timeline.
99.9%
Target SLA for B2B SaaS: monitoring, alerts, and runbooks from day one.
Multi
Tenant-ready architecture: data isolation, roles, and plan limits.
Technologies
Why NineLab?
Multi-tenancy: shared DB or dedicated instances for your model
Billing, subscriptions, and webhooks — without hacks from day one
Queues, idempotency, SLO metrics, and schema migration plans
−18% MRR
One hour of B2B SaaS unavailability at peak load means churn and SLA penalties. Reliable multi-tenant architecture pays for itself at the first prevented incident.
Delivered SaaS solutions
Products with subscriptions, billing, and scalable architecture
Ready to discuss your project?
First consultation is free — describe your task and we'll propose architecture and timeline estimates.
How we deliver
- 1.
Discovery: ICP, unit economics, must-haves, compliance risks.
- 2.
Architecture and API/UI prototype, MVP acceptance criteria.
- 3.
Iterative delivery with demos, load tests on staging, pre-launch hardening.
- 4.
Go-live, runbooks, handover or SLA-backed operations.
Deliverables
- Code in your Git, CI/CD, infrastructure as code as agreed.
- API docs (OpenAPI), data diagrams, ADRs for major decisions.
- Dashboards and alerts mapped to your SLOs.
- Release/rollback checklists and security gates for shipping.
Pricing
Typical SaaS MVP spans 8–16 weeks of sprints; mature products follow a roadmap. Estimate after a short workshop.
We can augment with outstaffing or load testing before traffic spikes.
Ship a SaaS that survives your first paying customers
Briefly describe the product and constraints — we will propose architecture and MVP timeline.
Discuss your project
Describe your task — we respond within 2 business hours.
Free initial consultation
Timeline and architecture assessment
NDA on request
Or call: +7 (912) 232-74-87 · full contacts page
Further reading
SaaS FAQ
Both are possible; choice depends on isolation, regulation, and operating cost.
Yes — based on your provider list and fiscal requirements.
Yes — data and API migration with minimal downtime when models align.
Repositories and infra live on your side by contract; optional cloud portability.
Full stack or API/data only alongside your frontend team.
Yes — retainers, incidents, planned releases.
