Ortem Technologies

    SaaS Development

    Build a SaaS Product That Scales

    Multi-Tenant Architecture, Billing & Onboarding — Built for Growth

    We build B2B SaaS platforms from the ground up — multi-tenant architecture, subscription billing, self-serve onboarding, and cloud infrastructure designed to handle your first customer and your ten-thousandth.

    Ortem Technologies is a US-based SaaS development company that has shipped B2B SaaS platforms, marketplace products, and subscription-based applications since 2012. Our team has built SaaS products across healthcare, fintech, HR technology, logistics, and professional services — from pre-seed MVPs to platforms serving enterprise customers with strict compliance requirements.

    SaaS development is fundamentally different from building a standard web application. When you build a SaaS product, you are building infrastructure that every one of your future customers will run on simultaneously. The architectural decisions you make on day one — how you isolate tenant data, how you model your subscription plans, how you design your onboarding flow — compound. A good decision at MVP saves you six months of painful refactoring at Series A. A bad one forces you to rebuild core systems while your sales team is closing deals.

    We have rebuilt SaaS products that were built wrong the first time. We have seen what happens when multi-tenancy is added as an afterthought, when billing logic is hacked together without proper dunning, when onboarding is designed for the engineering team rather than the end user. We build correctly from the start because we understand what "correctly" means for a product that needs to scale.

    What we mean by "SaaS-native architecture"

    Multi-tenancy is not a feature you add later — it is a fundamental design constraint. We evaluate three tenancy models for every SaaS product we build: shared-schema (row-level security with a tenant_id column), schema-per-tenant (isolated PostgreSQL schemas per customer), and silo (separate database instances per customer). The right model depends on your compliance requirements, your customer size distribution, and your cost structure. Healthcare and fintech products often require schema-per-tenant or silo models to meet HIPAA and SOC 2 requirements. High-volume B2B tools with smaller customers often perform better on shared-schema with aggressive indexing.

    Subscription billing is where most early-stage SaaS products accumulate the most technical debt. We integrate Stripe Billing as the default, covering subscription plans, usage-based billing, free trials, upgrade and downgrade flows, coupon and discount logic, invoice generation, tax handling, and dunning workflows. We build billing integrations that handle edge cases — failed payments, plan changes mid-cycle, proration, tax jurisdiction changes — because those edge cases become daily support tickets at scale.

    Self-serve onboarding is a growth lever, not just a UX feature. We design onboarding flows that get new users to their first "aha moment" as quickly as possible, with progressive disclosure that does not overwhelm. Workspace creation, email verification, invite flows, and guided product tours are all engineered with activation rate in mind. For B2B products, we build organization-level onboarding so that when one team member signs up, adding their colleagues is frictionless.

    Typical SaaS development timelines and costs

    A focused B2B SaaS MVP — covering core feature set, authentication, multi-tenancy, subscription billing, and onboarding — typically runs $60,000–$120,000 over 10–16 weeks. This is for a product that is production-ready, scalable, and can be shown to paying customers. It is not a prototype or a proof of concept.

    A full SaaS platform with admin tooling, customer analytics, SSO, API access, a developer-facing documentation portal, and enterprise security features typically runs $150,000–$350,000 over 4–9 months. Timeline depends heavily on integration complexity — the more third-party systems your product needs to connect to, the longer the build.

    All engagements start with a discovery sprint (2–4 weeks) where we define requirements, make architecture decisions, produce wireframes, and give you a fixed-price quote before development begins. You do not commit to a large budget until you have seen the plan and agreed to it.

    What you own at the end

    Full IP ownership, complete source code, documentation, and all deployment credentials are transferred to you at the end of every engagement. We do not retain access to your production systems, we do not require ongoing licensing fees, and we do not build on proprietary frameworks that create lock-in. Your SaaS product is yours.

    We also set up your engineering team for success after delivery. Every project includes documented architecture decisions, a runbook for common operations, and CI/CD pipelines your team can deploy from on day one. If you want to hire engineers to take the product forward, they will be able to read the codebase and understand what they are working with.

    Industries and compliance requirements we work in regularly

    We have shipped SaaS products in healthcare (HIPAA-compliant platforms with BAA signing, FHIR integrations, EHR connectivity), fintech (PCI-DSS compliant payment processing, banking data integrations, regulatory reporting tools), logistics (route optimization platforms, carrier API integrations, fleet management SaaS), HR technology (workforce management, payroll integrations, performance tracking), and professional services (client portals, project management tools, billing automation).

    For regulated industries, we deliver a compliance architecture document alongside the code — describing what safeguards are implemented, why they were chosen, and how to audit them. This document is written for your legal and compliance team, not just your engineering team.

    How we work: discovery → sprint delivery → handoff

    Every SaaS engagement starts with a discovery sprint. Over 2–4 weeks, we work with your team to define the core product workflow, make architecture decisions, produce wireframes for key user flows, and produce a fixed-price quote for the development phase. You review and approve everything before we write a line of production code.

    Development follows a two-week sprint cadence with demos at the end of each sprint. You see working software — not slide decks or status reports. Each sprint has defined scope and acceptance criteria. If scope changes, we discuss timeline and budget impact before proceeding. No surprises.

    At the end of every engagement, you receive full IP ownership, complete source code with documentation, all infrastructure credentials, and a handoff session where we walk your team through the architecture. If you want to hand the product to an internal engineering team, they will have everything they need to take it forward.

    Questions we get asked most often

    Can you start with just an MVP and add multi-tenancy later? You can, but retrofitting multi-tenancy is one of the most expensive and risky refactors in SaaS. If you know you are building a multi-tenant product, we design for it from the start. The cost difference at MVP stage is small compared to the cost of rebuilding later.

    How do we handle pricing changes after launch? We build your billing integration to support plan changes, proration, and migration between pricing models. Stripe's billing APIs support most scenarios; we design your data model so you can evolve your pricing without a rebuild.

    Do you work with existing codebases? Yes. We do SaaS audits (reviewing existing architecture and identifying risks), partial rebuilds (modernizing specific subsystems while leaving others intact), and full migrations (moving products from one stack to another). The approach depends on what you have and what you need.

    Ready to scope your SaaS product? Book a free 45-minute scoping call → We will ask about your target customer, core workflow, and growth goals, and give you a straight answer on what it will take to build it.

    Also see: MVP Development · Custom Software Development · Case Studies

    What We Build Into Every SaaS Product

    Multi-Tenant Architecture

    Correctly designed tenant isolation from the database up. Row-level security, schema-per-tenant, or silo models chosen based on your compliance and scalability requirements.

    Subscription Billing

    Stripe Billing integration: plans, trials, metered usage, upgrades, cancellations, dunning, and invoicing. Built to handle edge cases, not just the happy path.

    Self-Serve Onboarding

    Signup flows, email verification, workspace creation, and guided onboarding that gets new users to activation without touching your support queue.

    Auth & Access Control

    SSO (SAML, Google, GitHub), multi-factor authentication, role-based permissions, and organisation-level user management built into the platform.

    Usage Analytics & Metering

    Product usage tracking, feature flags, cohort analysis, and metered billing hooks. Know which features drive retention and which drive churn.

    Scalable Infrastructure

    Auto-scaling compute, managed databases, CDN distribution, and a CI/CD pipeline that lets your team deploy confidently multiple times per day.

    What's Included in a Full SaaS Build

    Product discovery & feature prioritisation
    Multi-tenant database architecture design
    Authentication & organisation management
    Subscription billing integration (Stripe/Paddle)
    Self-serve onboarding & activation flow
    Role-based access control (RBAC)
    Admin dashboard & customer management panel
    REST or GraphQL API with full documentation
    Feature flag system
    Product analytics integration
    Cloud infrastructure (AWS/GCP/Azure)
    CI/CD pipeline & automated test coverage

    Our SaaS Tech Stack

    Frontend

    React, Next.js, TypeScript

    Backend

    Node.js, Python (FastAPI), Go

    Database

    PostgreSQL, PlanetScale, Supabase

    Billing

    Stripe Billing, Paddle, Chargebee

    Auth

    Auth0, Clerk, NextAuth, custom SSO

    Infrastructure

    AWS, Vercel, GCP, Terraform

    Frequently Asked Questions

    Ready to Build Your SaaS Product?

    Tell us your idea, target customer, and key workflow. We'll scope the architecture, estimate the build cost, and propose a phased delivery plan — in a free 45-minute call.

    Get a Free SaaS Scoping Call

    Also see: MVP Development · Web Development · Custom Software Development