SaaS development services for products going to market
We design, build and run subscription products: the part your customers see, and the accounts, billing, roles and admin tooling behind it that decide whether the product can be sold at all. A written scope and a fixed budget come before any code.
A written scope and a fixed budget before any work is billed.
Most of a SaaS build is the part nobody demos
The screens a customer pays for are usually the smaller half of a SaaS product. The rest is what lets you sell it to a second and a hundredth customer: sign-up and teams, plans and invoices, roles and permissions, data kept apart per customer, and an admin panel your support staff can work from without opening the database.
We build both halves together, on a stack chosen so the product can be maintained for years by any capable team, including yours. You get a working staging build every week, so you can show it to early customers while it is still cheap to change.
Teams often arrive with a prototype built in a no-code tool or with an AI assistant, which is a useful way to find out what people want. We keep what it taught you, and rebuild what will not survive real customers and real billing.
Sound familiar?
The prototype sells, but it will not survive a second customer
Every account shares one database table, nobody can say which customer a record belongs to, and the first enterprise prospect asks about data isolation.
Billing is a spreadsheet and a payment link
Upgrades, trials, refunds and seat changes are done by hand, and month-end means reconciling the payment provider against what customers think they bought.
Support needs an engineer for every question
There is no admin panel, so changing a customer’s plan or resetting their access means someone running a query against production.
You know the market and need a team to build for it
There are customers waiting and the problem is clear. What is missing is a team to take the product from scope to launch and keep running it afterwards.
What a SaaS build includes
The parts every subscription product needs, built together as one system from the first release.
Accounts, teams and roles
Sign-up, invitations, single sign-on where your buyers expect it, and permissions that decide who can see and change what.
- Auth
- SSO
- Permissions
Multi-tenant data model
Each customer’s data kept apart by design, so the hundredth account is as safe and as fast as the first.
- Tenancy
- Isolation
Plans and billing
Subscriptions, trials, upgrades and invoices through a payment provider such as Stripe, kept in sync with what each account can use.
- Subscriptions
- Invoices
Admin panel
The internal side of the product: customer lookup, plan changes, impersonation for support and the reports you run the business from.
- Support
- Reporting
The product itself
The workflow your customers pay for, designed around their real use and validated with a clickable prototype before it is built.
- Core workflow
- Prototype
Operations after launch
Monitoring, backups and rollback from day one, then a monthly agreement to run and extend the product, ended with 30 days’ notice.
- Monitoring
- Backups
What you keep at the end
Everything below is yours from the first commit, under your own accounts wherever possible. Nothing in it is licensed from us, and nothing can only be maintained by us.
your-company/
- docs/requirements.mdThe written scope, the first release it describes and its fixed budget.
- docs/data-model.mdHow tenants, accounts, plans and permissions fit together.
- src/The product and the admin panel, in a repository under your account.
- billing/Plans and webhooks wired to a payment account registered to you.
- infra/Hosting, database and CI/CD in your own cloud accounts.
- docs/runbook.mdDeploys, rollbacks, restores and the on-call checklist.
Four stages, and what
each one hands you
Every stage ends in something you can review and keep, including the stages that come before any code is written.
Discovery and requirements analysis
We map the real problem before any code is written: stakeholders, constraints, existing systems, and what success means in measurable terms.
- requirements.md
- scope and fixed budget
- first-release feature list
Design and architecture
Interface flows and system architecture are designed together, so what we specify is what we can build and scale.
- clickable prototype
- tenant and data model
- billing plan design
Build, with a weekly demo
Short delivery cycles with visible progress. You review working software every week on a staging deployment you can open yourself.
- staging deploy each week
- test suite and CI
- weekly demo
Launch, then operations
We deploy the system, monitor it and hand over the runbook, then keep operating it under a monthly agreement you can end with 30 days’ notice.
- production launch
- runbook
- monitoring and alerts
Terms we put in writing
before work begins
The figures we commit to on every engagement. Your project gets its own dated plan on top of them.
- Inquiry
- 1 business dayA reply from someone who has read the brief.
- Discovery
- 1 to 3 weeksEnds in a written scope and a fixed budget.
- Weekly review
- Every weekThe work as it stands, on a link you can open yourself.
- First release
- 8 to 16 weeksTypical time from the end of discovery to production.
- Operations
- 30 days’ noticeMonitoring and iteration under a monthly agreement.
Illustrative. Every project receives its own dated plan before work begins.
What a SaaS product costs to build
Two SaaS products with the same screens can differ a lot in cost once tenancy, billing rules and integrations are counted. Discovery prices the first release you need as one fixed figure and sets the rest aside for later.
- 01How much of the product the first release has to include to win its first paying customers
- 02Billing rules: per seat, per usage or tiered plans, trials and proration
- 03Whether enterprise buyers need SSO, audit logs or data residency
- 04The integrations customers expect on day one
- 05Web only at launch, or web and mobile together
- 06How much of the operation you want us to run after launch
What we build it with
Tools with long support horizons and large talent pools, so the system stays maintainable by any capable team, not only ours.
Next.js
One codebase for the marketing site, the product and the admin panel.
PostgreSQL
Row-level rules that keep each customer’s data separate inside one database.
Stripe
Subscriptions, invoices and tax where the product calls for it, on an account in your name.
Supabase
Managed Postgres and authentication when a project benefits from it.
Questions buyers ask us
The ones that come up most in first conversations about this service.
Something not covered here?
Email us at hello@kodfabrika.com.
Related services
Built to last.
Started this week.
Tell us what you’re building. You’ll receive a written scope, a defined budget, and a delivery plan. Not a proposal deck.