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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.
04
Iterations & Growth
A/B tests, new features, retention work. Data drives priorities — not assumptions.
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.

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