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We build production-ready SaaS platforms with multi-tenant architecture, subscription logic and EU hosting — and we know what operations demand, because we run DocubotAI.app and IBPUnion.dk in production ourselves and are piloting our multi-tenant platform Unios.
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Building a SaaS platform requires four things: a data model with tenant isolation so each customer’s data stays separate; a role and permission system; subscription and billing logic that handles upgrades and cancellations; and an operations setup with hosting, monitoring and backups. With a focused scope, a first version can be live within weeks — at TwinCurrent the average is 18 days — after which the platform is extended step by step.
A SaaS platform is more than a web app. These are the concrete deliverables in a typical SaaS engagement with us:
A full platform built in TypeScript/Next.js with a Rust or Node backend and PostgreSQL — ready for real paying customers, not a prototype.
Tenant isolation at the database level, roles and permissions, and an onboarding flow so new customers can be created without manual work.
Plans, trials, upgrades and invoicing integrated with a payment provider — designed together with the data model, not bolted on afterwards.
Your data is hosted in the EU, and the data model is designed with data minimisation and deletion in mind from day one.
Automated deployment, error monitoring and backups — plus the option of having us operate the platform for you afterwards.
Most agencies hand over the code and move on. We run SaaS platforms in production ourselves, so we know the difference between code that looks finished and code that can actually be operated.
A multi-tenant SaaS platform for student organisations with a site builder, member management and roles across independent organisations — built end-to-end by us and now in pilot, with IBP Union onboarding as the first tenant.
An AI-powered documentation platform running in production — we handle operations, monitoring and ongoing development ourselves.
Decisions about architecture, hosting and monitoring are not theory to us — they are things we live with every day on our own platforms.
The hardest part of SaaS is rarely the visible features — it is keeping many customers safely on one codebase. This is where we spend most of our engineering judgement:
Each customer’s data is kept separate at the database level, so a bug in one tenant never leaks data into another.
Flexible access control — owners, administrators and members — designed so it can be extended without rewriting the codebase.
Plans, per-plan limits and payment flows designed together with the data model instead of being glued on afterwards.
Your platform is hosted in the EU, and the data model is designed GDPR-first: personal data is minimised, kept separate from other data, and can be deleted without breaking the system. Access is controlled through roles and permissions.
We document where data lives, who can access it, and how it is deleted — the technical foundation for your data processing agreements. We do not claim certifications; we build so that your compliance work rests on facts.
The same four-step model we use on every project — fixed quote, weekly demos, no surprises:
We go through your idea, users and requirements — and tell you honestly what makes sense to build first.
You get a fixed quote with scope, price and timeline within 48 hours of the call.
You see progress every week on a running version of the platform — not in status reports.
The platform goes into production, and we can take care of operations, monitoring and further development afterwards.
We do not publish list prices, because no two SaaS platforms are alike. What actually drives the price is:
The number of modules and flows in the first version. A sharp first scope is the single biggest lever for keeping the price down.
Payment providers, logins, external APIs and existing systems the platform has to work with.
Multi-tenant requirements, roles and permissions, real-time features and the amount of business logic.
Our prices typically land 65% below what enterprise agencies charge — you get an estimate within 24 hours, and a fixed written quote within 48 hours of the scoping call.
Get an estimate within 24 hoursThe price depends on three things: scope (how many modules the first version contains), integrations (payments, logins, external systems) and complexity (multi-tenant requirements, roles and business logic). We do not publish list prices because no two SaaS platforms are alike — but you get a fixed quote within 48 hours of a scoping call, and our prices are typically 65% below what enterprise agencies charge.
Our average for a first version in production is 18 days. The honest answer, though, is that a full platform depends on scope: multi-tenant features, payment flows and integrations are typically built in stages over several iterations. That is why we recommend starting with a focused first scope, getting real users on the platform, and extending from there — with weekly demos so you can see progress at all times.
Yes. We offer managed engineering, where we take responsibility for an existing codebase: we start with a review of the code, architecture and operations, fix the most critical issues first, and lay out a plan for further development. It is the same model we use on our own platforms — operations, monitoring and continuous improvement in one agreement.
We host in the EU and design the data model GDPR-first: personal data is minimised, kept separate from other data, and can be deleted without breaking the system. Access is controlled through roles and permissions, and we document where data lives and who can access it — the technical foundation for your data processing agreement. We do not claim certifications; we build so that your compliance work rests on facts.
Frontend in TypeScript and Next.js, backend in Rust (Axum) or Node/TypeScript, and PostgreSQL as the database — the same stack our own platform DocubotAI runs on in production, and that Unios, our multi-tenant platform in pilot, is built on. We deliberately choose proven technology that other developers can take over, rather than exotic choices that lock you in to us.
Yes. You own the code, the data and the infrastructure accounts. Everything can live in your own GitHub organisation and your own hosting accounts, and there is no lock-in: if you choose to operate the platform yourself or switch vendors, you take everything with you. Many clients still choose to have us run operations — but that should be a choice, not a trap.
Tell us about your idea or your existing platform — you get a fixed quote with scope, price and timeline within 48 hours of the scoping call.
Reply within 24 hours — usually same day