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D/03 · SaaS & web applications

From MVP to product platform.

We build SaaS products that handle load, generate revenue and grow iteratively. Architecture, auth, billing, dashboards and roles — from the first sprint.

15+
SaaS products live
6w
average time to MVP
99.95%
average uptime
×4.1
avg MRR growth per year
01What's Included

Everything you need for a working SaaS.

Not just code — a product with growth architecture, billing and observability out of the box.

Request a Quote ↗
SS/01

Product Architecture

Designed for scale: multi-tenancy, RBAC, feature flags, API versioning. Decisions you won't have to rewrite in a year.

SS/02

Auth & Roles

Email/password, OAuth (Google, GitHub, Slack), SSO, 2FA. Flexible role and permission model for any B2B logic.

SS/03

Billing & Subscriptions

Stripe or Paddle — plans, trials, upgrades, credits, receipts. Webhook infrastructure for reliable payment processing.

SS/04

Dashboards & Analytics

Custom dashboards with real-time metrics, charts, CSV/PDF export. Recharts or D3 for any complexity.

SS/05

API & Webhooks

Public REST or GraphQL API with docs, rate limiting and versioning. Webhooks with retry and signatures.

SS/06

Email & Notifications

Transactional emails, in-app notifications, push. Segmentation and triggered workflows — no extra tools needed.

SS/07

Observability & Monitoring

Sentry, OpenTelemetry, Grafana. Request tracing from frontend to database. Alerts in Slack/PagerDuty.

SS/08

Onboarding & Activation

Checklists, tours, hints, empty states — everything that turns a signup into first value.

02Stack

A stack for products that last.

Battle-tested technologies running in production at thousands of SaaS companies.

FFrontend
Next.jsReactTypeScriptTailwindRadix UIRechartsTanStack Query
BBackend & Auth
Node.jsPython · FastAPIGoPostgreSQLRedisPrismaJWT / OAuth2Keycloak
BBilling & Payments
StripePaddleLemonSqueezyRevenueCatWebhook infrastructure
IInfra & Observability
DockerKubernetesAWS / GCPSentryOpenTelemetryGrafanaPagerDuty
03Process

MVP in 6 weeks, product — iteratively.

Go to market fast, then grow by data. Not guesswork.

01
Product Discovery & Architecture
User story mapping, feature prioritization, technical architecture. 6-month roadmap. 1–2 weeks.
↗
02
MVP & Core Features
Auth, billing, key features, basic UI. Two-week sprints with demos. 4–8 weeks.
↗
03
Launch & First Users
Beta test, onboarding first users, collecting feedback. Monitoring and quick fixes.
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04
Iterations & Growth
A/B tests, new features, retention work. Data drives priorities — not assumptions.
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04Pricing

Transparent pricing.

Prices in euros. MVP or full platform — we fix the cost before starting.

START
MVP
Go to market in 6 weeks
from 8 000€
  • Auth + roles + billing
  • 3–5 key features
  • Basic dashboard
  • REST API
  • Production deploy
  • 1 month support
Discuss↗
LONG-TERM
Retainer
Dedicated product team
from 5 000€/mo
  • Team of 4–6
  • Sprints + roadmap
  • SLA 99.95%
  • Metric-driven iterations
  • BI and product analytics
Discuss↗
05Cases

SaaS products in action.

All Works ↗
Foster
Foster & Ko — client portal
B2B · SaaS
×2.8 conv. rate
Volta
Volta HR — onboarding platform
HRtech · SaaS
−60% onboarding time
Prism
Prism Analytics — BI platform
Analytics · SaaS
+120% MRR in 8 mo.
✦SaaS development

SaaS product development: from MVP to a scalable platform

A SaaS product needs more than screens: authentication, roles, billing, dashboards and an architecture that survives growth. We build MVPs quickly and evolve them into stable platforms.

01Foundations from the first sprint

  • Architecture and data model
  • Auth, roles and permissions
  • Subscriptions and billing
  • Admin panel and dashboards
  • APIs and integrations
  • Monitoring and backups

02MVP without dead ends

We scope the smallest version that proves value to real users, but build it on foundations that do not need to be rewritten when the product grows.

03Product team on demand

Product design, development and analytics work together, so each release is planned, measured and improved — not just shipped.

Tell us about your project

In 45 minutes we'll understand the task, suggest an architecture and give a timeline estimate.

Q3 slots
3 of 12
Start
July 2026
Response time
≤ 1 business day