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Custom SaaS Platform Development

End-to-end development of scalable SaaS platforms with multi-tenancy, authentication, billing, and the business logic that makes your product unique.

Building SaaS Is Complex

SaaS products face unique technical challenges that most developers underestimate. You're dealing with:

Multi-tenancy complexity

Keeping customer data isolated while sharing infrastructure efficiently requires careful architecture from day one.

Authentication & authorization

User management, team permissions, SSO integrations—security that's both robust and user-friendly is hard to get right.

Billing & subscription logic

Trials, upgrades, downgrades, usage-based pricing, invoicing—the payment layer alone can derail your roadmap.

Scale uncertainty

You need architecture that handles 10 users today and 10,000 tomorrow without rewriting everything.

What I Build

I develop SaaS platforms with the foundational infrastructure built in from day one—so you can focus on what makes your product different.

Multi-Tenant Architecture

Data isolation, tenant-specific configurations, and efficient resource sharing. Built for security and scale.

Authentication System

User registration, login, password reset, team invitations, role-based permissions, and optional SSO/OAuth.

Subscription & Billing

Stripe or other payment processor integration with trials, plan management, usage tracking, and invoice generation.

Admin Dashboard

Customer management, analytics, feature flags, and the internal tools your team needs to operate.

SaaS Development Process

01

Product & Architecture Review

3-5 days

Deep dive into your business model, pricing strategy, and growth plans. This shapes every architectural decision that follows.

02

Core Infrastructure

2-3 weeks

Authentication, multi-tenancy, and billing foundation. These systems touch everything—getting them right first saves months later.

03

Feature Development

4-8 weeks

Building your core product features on top of the solid foundation. Iterative development with regular demos and feedback.

04

Launch Preparation

1-2 weeks

Performance optimization, security audit, monitoring setup, and deployment automation. Ready for real customers.

Technology Stack

Modern, proven technologies chosen for SaaS-specific requirements:

Backend

Node.jsPythonPostgreSQLRedisGraphQL

Frontend

ReactNext.jsTypeScriptTailwind CSS

Auth & Billing

Auth0ClerkStripePaddle

Infrastructure

AWSVercelDockerKubernetes
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Frequently Asked Questions

How long does it take to build a SaaS platform?

A production-ready SaaS with core features typically takes 3-6 months. The first usable version (beta) can often be ready in 6-10 weeks. Timeline depends heavily on feature complexity.

What's the investment for SaaS development?

Every SaaS platform is different, so I provide custom quotes based on complexity and scope. After our discovery session, you'll receive a detailed proposal with fixed pricing—no surprises.

Do you handle the payment/billing integration?

Yes. I integrate with Stripe, Paddle, or your preferred payment processor. This includes subscription management, trial periods, usage-based billing, and webhook handling.

Can you work with an existing SaaS codebase?

Absolutely. I often join existing projects to add features, fix architectural issues, or help teams scale. I'll review your codebase and provide honest feedback on what needs attention.

How do you handle data security for multi-tenant apps?

I implement row-level security, encrypted data at rest and in transit, and strict tenant isolation. Architecture is designed to pass SOC 2 requirements if you need compliance later.

Will I be able to maintain the platform after handoff?

Yes. I write clean, documented code and provide comprehensive handoff documentation. I can also help you hire and onboard your first engineers if needed.

Ready to Build Your SaaS?

Let's discuss your product vision and figure out the right approach. I'll give you an honest assessment of what it takes to build and launch.

Asaf Arviv | Senior Software Architect & MVP Development