SaaS Development Services We Offer in Stockholm
Stockholm's SaaS market sets a particular bar. Klarna built a fintech SaaS used by 150,000 merchants and 85 million consumers, Spotify ships product to more than 600 million users with infrastructure that Backstage (the open-source developer portal Spotify created) now templates for the rest of the industry, and Tink (acquired by Visa from Stockholm) defined the open-banking aggregation category for Europe. Our SaaS services mirror that standard rather than the cheaper end of the Northern European average. We design multi-tenant architectures on Postgres, ClickHouse, and event-driven Kafka or Pulsar, build subscription billing with Stripe Billing or Recurly in EUR, SEK, NOK, DKK, and USD, ship usage-based metering for the AI and developer-tools SaaS category, integrate BankID, Freja eID+, and Vipps for Nordic identity, and wire BNPL flows through Klarna Checkout, Qliro, and Walley when the use case justifies it. Every engagement includes EU Accessibility Act conformance against EN 301 549 and WCAG 2.2 AA, GDPR by design with documented lawful basis per processing activity, and a DORA register entry if your platform handles financial workloads.
Our SaaS Development Development Process
We run discovery, design, build, and deployment on CET hours so Stockholm founders, CTOs, and compliance leads get synchronous standups instead of overnight handoffs from a US or APAC vendor. Discovery opens with a GDPR Article 35 DPIA scoping session, an EU AI Act risk classification if your SaaS embeds AI features, an EU Accessibility Act gap assessment against the 28 June 2025 effective date, and a Finansinspektionen license scoping conversation if you handle payments, BNPL, lending, or investment advice. When a product depends on novel infrastructure (real-time audio streaming at Spotify-scale, Klarna-scale ledger consistency, Tink-scale open-banking aggregation) we scope working sessions with KTH Royal Institute of Technology or RISE Research Institutes of Sweden rather than overselling in-house capability. Build sprints are two weeks, reviewed against a definition of done that includes WCAG 2.2 AA, automated GDPR data-subject-rights tooling, and observability with Grafana, Tempo, and Loki. Deployment defaults to eu-north-1 (Stockholm), which is powered by Nordic hydro and wind and carries one of the lowest carbon intensities of any AWS region globally.
Product Strategy & Planning
1-2 WeeksWe validate your SaaS concept, define the MVP feature set, design the data model, and plan the technical architecture for scalable growth.
UI/UX & System Design
2-3 WeeksDesign the user interface, plan multi-tenant data architecture, define API contracts, and create the billing and onboarding flows.
Core Platform Development
8-14 WeeksBuild the SaaS platform with authentication, multi-tenancy, billing integration, core features, admin panel, and customer-facing dashboards.
Testing & Security
2-3 WeeksComprehensive testing including multi-tenant isolation verification, security penetration testing, load testing, and billing edge case validation.
Launch & Growth Infrastructure
1-2 WeeksProduction deployment, monitoring setup, onboarding flow optimization, and growth infrastructure including analytics, feature flags, and A/B testing.
Technologies We Use for SaaS Development
Stockholm SaaS workloads default to EU residency in green-energy regions, so we ship on AWS eu-north-1 (Stockholm, opened in 2018 and AWS's most northerly EU region), Azure Sweden Central (Gävle, opened 2021 and Microsoft's most northerly Europe region), and GCP europe-north1 (Hamina, Finland) for the rare cases where a client already has a Google-centric stack. eu-north-1 in particular runs on a grid dominated by Nordic hydro, wind, and nuclear, with one of the lowest carbon intensities of any AWS region globally, which matters now that EU CSRD and the Swedish Annual Accounts Act sustainability reporting requirements apply to mid-cap and large companies. Application stacks default to TypeScript on Node.js or Bun, Next.js on the App Router for product surfaces, Postgres with logical replication and read replicas, ClickHouse or TimescaleDB for analytics, Kafka or Pulsar for event streams, and Temporal for long-running workflows like BNPL settlement, KYC review, or subscription dunning. Billing rides on Stripe Billing with multi-currency support across SEK, EUR, NOK, DKK, GBP, and USD. Identity uses BankID and Freja eID+ for Swedish residents, with WebAuthn passkeys and Auth0 or Clerk for international rollouts. Pricing pages quote SEK and EUR side-by-side because Sweden is in the EU but outside the Eurozone, and Nordic buyers expect to see both.
What Stockholm Clients Say About Us
Real feedback from businesses we have partnered with on saas development projects.
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