SaaS Development Services
Maybe you built a SaaS prototype with Lovable or Replit, maybe your MVP proved the idea and the architecture now won't stretch. A prototype proves people want it. Production is a different problem: multi-tenancy, auth, subscription billing, and the data isolation an enterprise buyer checks before they sign.
We assess what you've built, keep what's validated, and rebuild the rest as a real multi-tenant SaaS product. Tenant isolation, subscription infrastructure, and role-based access designed in from day one, not bolted on before Series A.
Launch a validated multi-tenant v1 in 10-16 weeks, then grow it into an enterprise platform
Multi-tenant architecture with row-level, schema-per-tenant, or database-per-tenant isolation
Stripe billing, subscription management, usage-based pricing, and feature flags built in
Full source code ownership, no lock-in, no dependency on us to keep your product running
Recent outcomes
B2B SaaS · Food logistics, Indonesia
Acquired by Runchise
Gula, our own multi-tenant food order management SaaS, held up when Runchise acquired it after launch. We co-built it and held a stake in the product.
B2B SaaS · Multi-carrier shipping, Indonesia
2,000+ shipments, 70+ countries
Built UrShipper, a shipping SaaS integrating five carriers, after four prior vendors failed. Migrated 200+ existing customers with zero disruption.
Voice AI SaaS · Hospitality
24/7 call coverage
Built Call Eva, a multi-tenant voice AI platform hospitality operators run from one shared dashboard, 24/7.
The problem
Built your SaaS MVP with Lovable or Replit and now it can't handle real tenants?
Working SaaS prototype that buckles the moment you add a second customer?
Architecture decisions from your MVP now blocking you from selling to enterprise buyers?
Short answer
SaaS development builds software delivered over the internet on a subscription basis, where one codebase serves many customers with isolated data, not a single-customer application. Shipping production software since 2015, RaftLabs builds multi-tenant SaaS for startups across the US, UK, Europe, Canada, the UAE, and Southeast Asia: tenant isolation, Stripe billing, and role-based access designed in from day one. Fixed cost from $25,000; a validated v1 in 10-16 weeks; full source code ownership.
Key takeaways
Trusted by
Picture the version you actually want. The enterprise prospect sends their security questionnaire, and the answers are already true: tenant isolation, SSO, audit logs, real, not promised on the call. The deal closes on schedule instead of stalling in procurement.
Now the version most growth-stage SaaS teams get instead. A shared-schema multi-tenant design that worked fine at 50 customers starts breaking at 5,000. Subscription billing bolted on after launch is harder to change than if it had been designed in. Role-based access retrofitted after the first enterprise deal requires it is a rebuild, not a feature.
None of these were bad calls at the time. They were MVP calls, made when the next customer mattered more than the ten-thousandth. Then the enterprise buyer shows up with a procurement checklist, and a decision made at 10 users is suddenly what stands between you and the contract.
SaaS development is building software delivered over the internet on a subscription basis, where one codebase serves many customers, not a single-customer application. Five things make it different. Multi-tenancy isolates each customer's data on shared infrastructure. Subscription billing (recurring billing, trials, plan changes, usage-based pricing) is a core product feature, not an afterthought. Role-based access covers user, team, admin, and billing roles with real permissions. Observability keeps uptime and performance honest for every customer at once. And the architecture has to absorb growth without a rebuild at each new order of magnitude.
RaftLabs has shipped production software since 2015 across healthcare, fintech, hospitality, and logistics, for teams that include Aldi, Vodafone, and Nike. We launch a validated multi-tenant v1 in 10-16 weeks at a fixed cost, then grow it, with full source code ownership and no vendor lock-in. If you're still validating whether anyone wants the product at all, see MVP development, that's step one. This page is step two: the architecture that survives contact with a real enterprise buyer.
Key Insight
The odds today
Most of that debt isn't a mystery when it finally surfaces. On April 5, 2022, an Atlassian engineer ran a maintenance script meant to operate on a single app's data. The script instead received an entire customer site's ID, and it ran in permanent-delete mode rather than recoverable mode. The result: 883 Jira and Confluence Cloud sites, 775 customers, permanently deleted. Full restoration took two weeks. Atlassian has deep engineering resources. The tooling simply had no validation step to catch the difference between "one customer's app" and "an entire customer's data" before running an irreversible operation at the wrong scope. That is what tenant isolation as operational discipline, not a one-time design decision, is actually for.
We choose the tenancy model based on your buyer and their procurement requirements, not a default preference, row-level for SMB SaaS, schema-per-tenant for most B2B products, database-per-tenant when regulated buyers demand it. Cross-tenant isolation is enforced by an automated security test suite, not a one-time review. One team owns your product from architecture through launch, no handoffs, no relay race between four vendors.
The tenancy model decides your isolation guarantees, your compliance ceiling, and your infrastructure bill. There is no correct default. We choose it against who actually signs your contract.
| Tenancy model | Data isolation | Best-fit buyer | Infrastructure cost and ops |
|---|---|---|---|
| Shared schema (row-level security) | Logical, enforced by a tenant filter on every query | B2C and SMB SaaS at high tenant counts | Lowest; easiest to scale operationally |
| Schema-per-tenant | Separate schema per tenant in a shared database | Most B2B SaaS selling to growth-stage companies | Moderate; balances isolation and cost |
| Database-per-tenant | Separate database per customer | Regulated buyers (HIPAA, SOC 2) and data-residency mandates | Higher; scales with customer count |
| Single-tenant (dedicated stack) | Full physical separation, one deployment per customer | A flagship enterprise or a strict residency requirement | Highest; scales linearly with customers |
On top of the model, enterprise procurement checks the controls, not the diagram. A SOC 2 Type II review wants enforced access controls, audit logging, and change management you can evidence. GDPR wants data-subject export and erasure, and often EU data residency. We design those in against your target regime, rather than promising them on the sales call and retrofitting under a signed deadline.
Everything on the left should already be true for your product. Even one thing on the right, and a custom SaaS build is the wrong spend right now.
You're building a multi-tenant SaaS product where one codebase serves many customers.
Subscription or usage-based billing is core to the model, not a bolt-on you'll add later.
Budget for a build in the $25,000+ range, with enterprise buyers on the roadmap who will ask about data isolation and compliance.
What we build
Multi-tenancy, billing, and the enterprise controls your buyers check before procurement, designed in from day one, not retrofitted before Series A.
Fixed cost. A validated v1 in 10-16 weeks. Full source code ownership. No dependency on us to run your product.
How it works
Every project follows the same four phases. Scope is locked and price is fixed before development starts.
We map the problem, the user, and the workflow. You leave week 1 with a written scope document, a defined feature list, and a fixed-price quote. No development starts without your sign-off.
We design the data model, tenancy model, and API structure before writing code. Wireframes validate the UX. Architecture decisions made here cost a fraction of changes made in week 8.
Working software deployed to staging at the end of sprint one. Bi-weekly demos with milestone sign-off before the next payment. QA runs in parallel with every sprint, not as a phase at the end.
Production deployment with monitoring activated on launch day. 8 weeks of post-launch support included. Full source code, infrastructure definitions, and documentation transferred to you at project end.
Gula was our own product, not client work: a multi-tenant food order management SaaS with Stripe billing that we co-built and held a stake in, alongside co-founder Grady Lakshmono. Runchise acquired Gula after launch, and the multi-tenant architecture we shipped held up under the acquirer's scale without a rebuild. Building on our own dime, with our own equity on the line, is a different kind of proof than billing by the hour.
We've delivered for teams at Vodafone, T-Mobile, Aldi, Nike, Cisco, and Lockheed Martin. Those are relationships, not SaaS case studies. The SaaS proof below names the build and the real numbers.
Gula is one example, and it was our own product. We built the multi-platform food order management SaaS, including multi-tenant data isolation and Stripe billing, in 16 weeks. Runchise acquired it shortly after launch. Read the full case study.
"RaftLabs elevated my ideas and brought them to life when everything seemed impossible." - Grady Lakshmono, CoFounder, Gula (acquired by Runchise)
What clients say
Three-year average engagement. Founders and operators describing the work in their own words. No marketing varnish.
IndonesiaRaftLabs elevated my ideas and brought them to life when everything seemed impossible.
01 / 03
Where you land in the range depends on scope, not negotiation:
What it costs
Multi-tenancy, subscription billing, and enterprise features, scoped and priced before development starts.
Scoped to your feature list. A validated v1 in 10-16 weeks, with full source code ownership. Start with one core workflow and expand into a full platform as you add modules.
Start with the workflow your users need most, then add multi-tenancy, billing, or a mobile app once the core product is live.
Ownership
You own all source code, infrastructure definitions, CI/CD configurations, and documentation at project end. No proprietary frameworks, no lock-in, ready to hand to any team.
No change-order surprises
Once we scope the build, that price is locked before development starts. A scope change is a priced change request, never a surprise on the invoice.
The unglamorous decisions that decide whether a SaaS product survives contact with an enterprise buyer, not just a demo.
Row-level, schema-per-tenant, or database-per-tenant, picked to match who's actually procuring, not the fastest thing to ship.
Plan restructures and new usage-based tiers don't break existing subscriptions, because the billing layer was built to flex, not hard-coded to launch day.
Not a one-time design review. A missing tenant filter in a query gets caught by a test, not discovered by a customer seeing another customer's data.
SSO, audit logs, and tenant isolation guarantees are already true when the security questionnaire arrives, not a scramble under a signed verbal commitment.
Failed payments trigger a real retry and communication sequence, not a silent churn event nobody notices until finance asks why revenue dipped.
Deployed to your cloud account, documented well enough that any competent team, including one that isn't us, can run and extend it.
A multi-tenant SaaS build rarely stays inside one scope. If your product needs run wider than SaaS, custom software development covers full-scope platforms beyond multi-tenancy. Startup software development carries the product forward once the MVP is behind you, product engineering runs the ongoing development after launch, and API development builds the integration layer that turns your product into a platform your customers connect to. Still validating whether anyone wants it? Start with MVP development.
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Read moreSaaS development is the process of building software delivered over the internet on a subscription basis, where one codebase serves multiple customers (tenants). What makes it different from building a single-customer application: (1) Multi-tenancy, the architecture must isolate each customer's data while running on shared infrastructure. (2) Subscription billing, recurring billing, trial management, plan changes, and usage-based pricing are core product features, not afterthoughts. (3) Role-based access, every SaaS product needs user, team, admin, and billing roles with appropriate permissions. (4) Observability, you're responsible for uptime and performance for all customers simultaneously, so monitoring and alerting are non-negotiable. (5) Scale, the architecture needs to handle growth without rebuilding at each new order of magnitude.
If you're validating whether anyone wants your product, start with our MVP development services, that page is built for the pre-validation stage. This page is for the next chapter: you already have real usage, and the architecture decisions made to ship fast are now the thing standing between you and an enterprise deal, a compliance requirement, or the next order of magnitude in customers. Most of our SaaS-scaling clients have already been through an MVP, whether with us or elsewhere.
There are three models, each with different cost and isolation trade-offs. Row-level security (shared schema): all tenant data in shared tables with strict query-level isolation. Lowest infrastructure cost, easiest to scale operationally, right for B2C SaaS and SMB-focused products. Schema-per-tenant: each tenant gets their own schema within a shared database. Strong isolation, good compliance posture, manageable infrastructure cost, the right choice for most B2B SaaS products targeting growth-stage companies. Database-per-tenant: each customer gets a completely separate database. Maximum isolation, required for regulated industry buyers in healthcare and financial services, and for customers with strict data residency requirements. Higher infrastructure cost that scales with customer count. We recommend the model based on your target buyer and their procurement requirements, not a default preference.
We integrate Stripe Billing as the standard subscription layer, handling recurring billing, trial management, plan upgrades and downgrades, proration, and invoice generation. For usage-based billing (metering by API calls, seats, events, or other units), we implement Stripe Meters or build a custom metering system that reports usage to Stripe. Feature flags are implemented to control feature availability by plan without code deployments. If your pricing model is likely to evolve (and it will), we design the billing integration to support plan structure changes without breaking existing subscriptions.
A focused SaaS product, one core workflow, multi-tenancy, subscription billing, and a web interface, typically runs $25,000-$60,000. A more complete SaaS platform with multiple modules, mobile app, API for third-party integrations, and admin tooling runs $60,000-$150,000. SaaS products with complex data models, real-time features, or compliance requirements (HIPAA, SOC 2) run higher. Pricing is fixed cost based on scoped features, you know the number before development starts, not after.
A focused SaaS MVP with one core workflow, multi-tenancy, and subscription billing typically launches in 10-16 weeks. A more complete platform with multiple modules and enterprise integrations takes 16-24 weeks. We deliver working software every two weeks and hold milestone reviews before each payment, so you see progress throughout rather than only at launch. Timeline depends on scope complexity, the number of third-party integrations required, and how clearly the product requirements are defined at kickoff.
No. Eight weeks of post-launch support is included in every engagement, covering the window when tenant isolation and billing edge cases actually start to surface under real usage. Beyond that, ongoing support is available as a separate retainer, and because you own the full source code and infrastructure from day one, you're never dependent on us to keep the product running.
You own everything. All source code, infrastructure definitions, CI/CD configurations, documentation, and data are transferred to you at project end. We do not retain access to your systems after delivery, and we do not use proprietary frameworks that create lock-in. Your team or any future developer can take over the codebase without depending on us.
Work with us
We scope SaaS Development Services in 30 minutes. You walk away with a clear cost, timeline, and approach. No commitment required.