Our Services

SaaS Development

We design and develop SaaS platforms that can onboard users, handle subscriptions, manage roles, and scale with your growth. From architecture to deployment, we build products that are secure, maintainable, and ready for market.

  • Multi-tenant from day one
  • Billing & subscriptions built in
  • API-first architecture
  • Cloud-native deployment
Barrzen SaaS Development — multi-tenant product dashboard
  • Built for multi-tenancy

    Tenant isolation, data partitioning, and plan limits designed in from the first schema, not patched later.

  • Billing-ready from launch

    Stripe or your payment provider of choice wired into subscriptions, trials, upgrades, and invoicing.

  • API-first backend

    Clean, documented APIs so your web app, mobile app, and integrations all share one source of truth.

  • Scales with your growth

    Cloud infrastructure and CI/CD set up so shipping features doesn't mean rebuilding your foundation.

What you can expect

Clear scope for your saas development engagement.

1

Architecture & Data

A foundation that supports multiple customers, roles, and plans without rework down the line.

  • Multi-tenant schema and data isolation strategy
  • Role-based access control (RBAC) design
  • API-first backend built for web, mobile, and integrations
2

Billing & Growth

Subscriptions, trials, and upgrades wired in so revenue flows from day one.

  • Subscription & usage-based billing integration
  • Free trial, upgrade, and downgrade flows
  • Admin dashboards for plans, invoices, and usage
3

Launch & Scale

Ship with confidence and keep shipping as your user base grows.

  • Cloud deployment with CI/CD pipelines
  • Monitoring, logging, and error tracking
  • Performance tuning as usage scales

Ready in four clear steps

From domain setup to authenticated sending with monitoring you can trust.

  1. Step 1

    Scope & architect

    We map your core workflows, tenancy model, and integrations before writing code.

  2. Step 2

    Build the core product

    Authentication, roles, and your main workflows come together in iterative, reviewable sprints.

  3. Step 3

    Wire up billing

    Subscriptions, trials, and plan limits are integrated and tested end to end.

  4. Step 4

    Deploy & monitor

    CI/CD pipelines, monitoring, and alerting go live so you can ship confidently after launch.

Capabilities that scale with you

Practical tooling for teams that need deliverability, visibility, and control.

Multi-tenant architecture

Tenant isolation and data partitioning designed for security and performance at scale.

Authentication & RBAC

Secure sign-in, SSO options, and role-based permissions for teams and admins.

Subscription billing

Stripe or your provider integrated for plans, trials, upgrades, and invoicing.

API-first backend

A documented API that powers your web app, mobile clients, and future integrations alike.

Admin & analytics dashboards

Give your team visibility into usage, revenue, and customer health at a glance.

CI/CD & cloud deployment

Automated pipelines and infrastructure so releases are routine, not risky.

Privacy & security

Security & compliance readiness for SaaS

Enterprise buyers ask hard questions about your stack. We build so you have good answers.

Tenant data isolation

Data partitioning and access controls that keep each customer's data separate and auditable.

Encryption in transit & at rest

Standard practice across the database, application, and API layers of every build.

Role-based access control

Granular permissions so users and admins only see and do what their role allows.

Audit-friendly logging

Structured logs and monitoring that make security reviews and incident response tractable.

Secure authentication

Modern auth patterns including SSO and MFA options for teams that need them.

Compliance-ready foundations

Architecture decisions that make later SOC 2 or ISO 27001 readiness realistic, not a rewrite.

We build with common compliance frameworks in mind, but certification itself is a separate process your organisation completes with an auditor. Read our privacy policy · View DPA template · Request a signed copy

Built for the messages that matter

From security codes to team inboxes and lifecycle campaigns.

B2B SaaS platforms

Multi-tenant products for teams and companies, with per-organisation roles and billing.

Vertical SaaS tools

Industry-specific software — for agencies, clinics, schools, or other niches — built around your workflow.

Internal tools turned products

Take a tool your team built for itself and productise it for external customers.

Usage-based billing products

Metering and billing for products priced by consumption rather than flat seats.

MVP to Series A scale-up

Start lean, then scale the same architecture as usage and headcount grow.

Legacy platform modernisation

Rebuild an ageing single-tenant product into a modern, multi-tenant SaaS offering.

Frequently asked questions

Straight answers on privacy, deliverability, and getting started.

What does a SaaS development engagement include?+

Architecture and data modelling, core product build, authentication and roles, billing integration, and cloud deployment with CI/CD — scoped to your product and timeline.

Can you integrate our existing billing provider?+

Yes. We commonly integrate Stripe, but can work with your preferred payment or billing provider.

Do you build multi-tenant from the start, even for an MVP?+

We design the data model to support multi-tenancy from day one, even if you launch single-tenant first — retrofitting tenancy later is far more costly.

What tech stack do you use?+

We choose the stack based on your team's needs and long-term maintainability — commonly Node.js, TypeScript, PostgreSQL, and modern cloud platforms like AWS or GCP.

Can your team also handle ongoing feature development?+

Yes, many clients continue with us post-launch for iterative feature work, scaling, and maintenance.

How do you price a SaaS build?+

We scope by milestone after a discovery call — architecture, core build, billing, and deployment are typically priced as separate phases so you can see progress and value at each stage.

Ready to start your saas development project?

Tell us about your goals and we'll respond with a clear plan, timeline, and estimate.

Build your SaaS product