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SaaS development

SaaS development for teams that plan to be renewed

ScalaCode's SaaS development team designs multi-tenant architecture, subscription billing and enterprise identity together, on one codebase and one data model. We take B2B products from v1 to well past their first hundred customers.

Multi-tenancySubscription billingSSO and SCIMAdmin toolingPartner APIs
5 to 10 days

from contract to engineers in your repo

2 weeks

per sprint, with a demo at the end of each

14 years

shipping software since 2012

500+

projects shipped since 2012

4.8/5

on Clutch, from 33 verified reviews

ISO

9001:2015 certified delivery process

Trusted by teams at

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Clutch 4.8/533 verified client reviews

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GoodFirmsReviewed software partner

ISO

ISO 9001:2015Certified delivery process

GDPR

GDPR compliantData handled under EU rules

The short answer

What SaaS development covers

Tenancy, billing and identity sit underneath the product features and decide whether a SaaS scales.

What is SaaS development?
SaaS development is the engineering of software sold as a subscription and run by the vendor for many customers at once. Beyond product features, it covers multi-tenant data isolation, subscription billing, identity and single sign-on, admin tooling and the integrations enterprise buyers expect before they sign.

Related: web application development and custom software development.

What we build

SaaS products we build, from the platform layer up

The components every SaaS needs, built early so you avoid a rebuild at customer 200.

Book a SaaS architecture call

Multi-tenant architecture

Database per tenant for compliance-heavy customers, shared schema with row-level security for cost, or a hybrid. Migration paths between models are built in from the start.

Subscription billing

We set up Stripe Billing, Paddle, Chargebee or Maxio. Trials, upgrades, dunning, proration, tax and revenue recognition then feed NetSuite, QuickBooks or Xero.

Identity, RBAC and SSO

Auth0, Clerk, WorkOS or custom OIDC. SAML SSO for enterprise deals, SCIM provisioning for IT teams and audit logs procurement will accept.

Admin and internal tooling

Customer success dashboards, support tools, usage analytics and feature flags, so ops teams act without filing an engineering ticket.

See custom software development

Partner integration layer

We build public APIs, webhooks, SDK generation and OAuth for partner apps, plus a marketplace UI where customers install integrations.

Onboarding flows

Sign-up, workspace setup, invites and first-run guidance, the part of the product that decides whether a trial converts.

Observability

Logs, traces and alerts per tenant, so you learn what is breaking before your customers open a ticket.

Modernisation and replatforming

Monolith to services, on-prem to cloud, or a tenancy model refactor, delivered in phases while the product stays live.

See cloud and DevOps

Not sure which tenancy model you need?

Bring your customer mix. We will tell you where shared schema is enough and where a database per tenant will save the enterprise deal.

Book a SaaS architecture call
Architecture

Multi-tenant SaaS architecture decisions that affect renewals

We match the isolation model to your customer mix, from high-volume self-serve to regulated enterprise accounts.

Shared schema with row-level security

Every tenant in one schema, isolated by policy in the database. Lowest cost per tenant, the usual fit for high-volume B2B and B2C.

Request→Tenant ID→RLS policy→Rows

Schema per tenant

One database holds a schema for each customer. You get cleaner isolation and per-tenant backups without running hundreds of databases.

Request→Resolve tenant→Tenant schema→Rows

Database per tenant

A dedicated database for customers whose security review demands it. Higher cost, and the simplest answer to data residency questions.

Request→Router→Tenant DB→Rows

Hybrid tenancy

Shared infrastructure for the long tail and dedicated databases for enterprise accounts, with a tested path to move a tenant between tiers.

Plan tier→Router→Shared or dedicated→Rows
Talent Matched employer dashboard with ranked candidates
Scala AICase study · HR tech SaaS

Talent Matched: a multi-tenant AI recruitment SaaS

Each customer gets its own isolated database schema in the ATS, with background workers for imports and a branded careers site for every employer. An AI agent on a private LLM, voice screening and the TM Discover search engine sit on top.

Candidate ranking and shortlisting cut from days to minutes

New employers onboard on the same multi-tenant platform

Multi-tenant SaaSTenant isolationReactAI agentAWS
Read the Talent Matched case study
A laptop on a desk showing a SaaS analytics dashboard with charts
Why product teams pick us

Built for you to own and run without us

India rates, with the engineering discipline your next fundraise or enterprise security review will check.

  • Engineering managers run delivery. The person you sync with weekly can read a stack trace and explain trade-offs in plain English.
  • You own everything from day one. That covers source code, infrastructure config, billing integration code and identity provider setup.
  • We work in your repo. We use your GitHub or GitLab, your code review process and your CI pipeline.
  • Compliance is documented as we build. We write up SOC 2, HIPAA and PCI DSS controls for your audit cycle and run security reviews before rollout.
  • We train your team. You get runbooks, recorded walkthroughs and a 30-day question window after handoff.
The ScalaCode team: a large group outside the office, the team at a tech expo, the engineering floor and a planning meeting
How we work

How we build a SaaS product, from first call to a hardened release

Engineers join your standups and follow your review process from the first sprint.

  1. 01

    Discovery

    We learn your product, current architecture, customer mix and constraints, then agree the scope envelope and engagement model.

    Week 1
  2. 02

    Team formation

    We propose engineers from our bench. You interview and approve each one before they join your tools.

    Week 1 to 2
  3. 03

    Sprint delivery

    Two-week sprints with demo gates, written status and code reviews you can audit.

    Ongoing
  4. 04

    Hardening

    Staged rollout, performance testing and a security review before customers see the release.

    Per release
  5. 05

    Handover and tune-up

    We hand over runbooks, dashboards and escalation paths, then run a 30-day post-launch tune-up. DevOps engineers can stay on to run the platform.

    30 days
Tech stack

The SaaS stack we work in

Application
Node.jsTypeScriptPythonFastAPIDjangoJavaSpring BootNext.js
Multi-tenant data
PostgreSQLMongoDBMySQLRedisClickHouse
Billing
Stripe BillingPaddleChargebeeMaxioNetSuiteXero
Identity
Auth0ClerkWorkOSOktaAzure ADSAMLSCIM
Cloud
AWSAzureGCPTerraformPulumiKubernetes
CI/CD
GitHub ActionsGitLab CICircleCI
Choosing a team

SaaS development cost: who should build your SaaS

A SaaS platform v1 starts from $19,999, with multi-tenancy, billing and SSO included. If you already have a senior platform lead, hiring around them can be the better call. Here is how the options compare.

ScalaCodeWestern consultancyIn-house senior hireSolo freelancer
Dedicated engineer (USD)From $1,799 a month, publishedHighest, rarely publishedSalary plus overheadVaries widely
Time to start5 to 10 business days8 to 16 weeks (RFP)12 to 26 weeks (hiring)1 to 3 weeks, if available
Senior oversight on every PRYesYes, varies by teamDepends on your teamOne person, no peer review
IP ownershipFull transfer from day oneNegotiated, often sharedYours by defaultNegotiated
Scale up or downWithin daysSlow, contract amendmentHire or layoff cycleLimited
Who we build for

SaaS teams we work with

All industries

B2B SaaS for product-led growth

  • Technical debt cleanup before a raise
  • Multi-tenant scaling
  • Partner integration layers

Vertical SaaS in regulated industries

  • Healthtech, legaltech, fintech, edtech
  • Audit trails and tenant isolation

Enterprise SaaS moving upmarket

  • SSO, SCIM and custom permissions
  • Dedicated tenant infrastructure

Internal platforms

  • Developer portals on Backstage
  • Self-service infrastructure
Client reviews

Rated 4.8/5 by the clients we build for

Verified reviews from Clutch and GoodFirms, and clients on camera.

Clutch4.8
★★★★★

33 verified reviews on Clutch

John-Paul Hatala, founder of SnagPad, in his video review
YouTube video reviewJohn-Paul HatalaCEO, SnagPad
YouTube video review★★★★★
“The team was professional, reliable, and always friendly, making the entire journey from verification to launch smooth.”
Dr. Helmut BeckerCEO and Founder, OrgalyzerDigital platform
YouTube video review★★★★★
“Everything we have asked for; they have completed. Everything was done in a timely and efficient manner.”
FayzaanCEO, TelestopExpert consultation platform
GoodFirms review★★★★★
“Scalacode delivered a secure, scalable, and efficient platform exceeding our expectations.”
Lou DiFruscioCEO, Blancco Technology GroupData sanitization platform (web development)
GoodFirms review★★★★★
“Working with ScalaCode was a fantastic experience, marked by their expertise and support.”
Jeremy BodenhamerCEO, ShipHawkE-commerce development
Clutch review★★★★★
“Their team often proposed innovative features we hadn't considered.”
Sankaran SreeramanCo-Founder & Managing Director, TabSquare.AIMobile app for a restaurant software company
GoodFirms review★★★★★
“Their team proposed an innovative and scalable solution, ensuring seamless data integration with third-party platforms.”
Dan SaavedraFounder, MergeYourDataData management mobile app
YouTube video review★★★★★
“Their approach, dedication and project execution played a critical role in TipStars' success.”
James EllisFounder, TipStarsArtist tipping app
Questions buyers ask

SaaS development FAQs

Pricing is published. If your question is not here, ask it on the call.

How much does SaaS development cost?

A SaaS platform v1 starts from $19,999, with multi-tenancy, billing and SSO included. It follows a free discovery sprint. Dedicated engineers start from $1,799 a month, full-time.

How long does it take to build a SaaS MVP?

A focused SaaS MVP with one core workflow typically takes 6 to 8 weeks and starts from $9,999. A v1 with multi-tenancy, subscription billing and SSO is scheduled in discovery, and AI coding agents help our engineers ship it faster. Engineers can be in your repo 5 to 10 business days after contract.

Should our SaaS be single-tenant or multi-tenant?

Most B2B SaaS should start multi-tenant, with a shared schema and row-level security, because it keeps cost per tenant low. Compliance-heavy customers get a schema or database per tenant. Hybrid models are common when you sell to both, and we build the path to move a tenant between tiers.

Can you add SSO and SOC 2 controls?

Yes. We add SAML SSO and SCIM provisioning through Auth0, Clerk, WorkOS or custom OIDC, with audit logs procurement teams accept. SOC 2, HIPAA and PCI DSS controls are documented as we build, and security reviews run before production rollout.

Which billing platform should we use?

Stripe Billing suits most B2B SaaS with card payments and usage-based plans. Paddle suits teams that want a merchant of record to handle global sales tax. Chargebee or Maxio suit complex contracts and revenue recognition, and every option can feed NetSuite, QuickBooks or Xero.

Can you rebuild our existing SaaS on a modern stack?

Yes. We move monoliths to services, on-prem to cloud, or refactor the tenancy model in phases planned during discovery. Customers stay on the live product while each part moves, and you keep shipping features during the rebuild.

Do we own all the code, including integrations and admin tools?

Yes, from day one. Source code, infrastructure config, custom tooling, billing integration code and admin systems are yours. We keep no licence to reuse them for other clients.

Can you work in our existing repository?

Yes. We join your GitHub or GitLab, write code in your repo, follow your code review process and use your CI pipeline.

Will we end up dependent on you?

Every engagement includes runbooks, internal documentation, recorded walkthroughs and a 30-day question window after handoff, so your team can run the product on its own.

Working with ScalaCode was a fantastic experience, marked by their expertise and support.
Jeremy BodenhamerCEO, ShipHawk
Free 30-minute strategy call

Tenancy, billing and identity, scoped in one call

  • A free 30-minute strategy call
  • A view on the tenancy model that fits your customer mix
  • What is realistic, what it costs and how long it takes

Book your SaaS architecture call

Takes 20 seconds