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Expertise · SaaS

Your SaaS scalable, secure, and compliant

We support you in building your SaaS: billing, onboarding, user rights management. Production-ready code, not an AI prototype to rewrite in six months.

app.votre-saas.io / admin · revenue
Stripe · live
MRR€48,240+14.8% MoM
Active accounts312+22 this month
Churn1.8%stable
MRR · Last 12 monthsin €
Plans · MRR by offer
Starter€12,480
Business€21,600
Enterprise14 160 €
Latest signups
01 — Why us

A sellable MVP, a scalable architecture
scaling up.

Three concrete commitments that set a SaaS delivered by our team apart from a disguised AI demo.

01

A market-ready MVP, not a POC

We deliver a real product you can sell quickly. Not a demo that needs to be recoded as soon as a client signs.

02

Designed for growth from the very first scoping

Architecture that supports new client onboarding, scalable database, background processing, and monitoring from day one. No need for a full rebuild when raising funds.

03

Serving the founder, not the agency

Short sprints, explained technical choices, code you own, and a smooth handover to your future CTO. Our goal isn’t to become indispensable.

02 — Four scenarios

Four entry points,
one consistent method.

Four SaaS scenarios we handle. From idea to first customer, from overhaul to fundraising prep.

Do you need an internal tool, not a resold SaaS? See Business Tool.

01

B2B MVP

We start from your Figma (or an idea) and deliver a product you can sell.

BillingOnboardingRBAC
02

Existing SaaS overhaul

Your SaaS is held back by a Bubble that’s hit its limits, a Lovable/Bolt that needs recoding, or an outdated stack. Audit, migration plan, and module-by-module rebuild.

AuditMigrationModule
03

Modules to add

Your SaaS is running but missing a key component: fine-grained RBAC, audit logs, AI module, or third-party integration. Delivered in parallel with your in-house team.

RBACAudit logAI
04

Scaling readiness

Before a funding round or a major client: architecture reinforcement, database optimization, monitoring setup, security hardening.

ArchitecturePerformanceSecurity
03 — Tech stack

A modern stack,
and scalable.

We tailor our stack to the client’s context (sovereignty, GDPR, existing in-house teams, SI integrations).

01

Front

Next.jsReactTypeScript
02

Back / Data

SupabasePostgreSQLDirectusn8n
03

Billing

Stripe BillingStripe InvoicingUsage-based
04

Auth & SSO

Supabase AuthAuth0KeycloakSAML
05

AI / Agents

MistralOpenAIClaudeMCPLangGraph
06

Tests

VitestPlaywright
07

Ops / Hosting

OVHScalewayDockerVercel
08

Monitoring

SentryPostHog
09

CI/CD

GitHub Actions
04 — Case study · Cindra

A delivered B2B SaaS,
from scoping to production.

Full digitization of the fire equipment verification process. From quote creation to final verification PDF generation, including on-site scheduling.

Read the case study
B2B SaaS · Equipment verification8 MONTHS · 60 USERS

Cindra

Complete B2B SaaS for fire equipment verification. From quotes to final verification PDF generation, with dedicated roles and teams.

8 monthsof support, from scoping to production
60internal users with dedicated roles & teams
1tool for quotes, scheduling, on-site verification, final PDF
Next.jsSupabaseTypeScriptRBAC
SaaS prototyped in Lovable, Bolt, v0? 72-hour diagnosis, recovery plan, module-by-module reconstruction.
See Dr Vibe Coding
05 — Method

A project in five phases

A dedicated team from scoping to delivery with a dedicated project manager

01Scoping1 to 3 weeks

Spec, plan, estimation.

Workshop, use case mapping, constraints (IT, GDPR, security), quantified success criteria. Deliverable: functional spec + technical plan + fixed estimate.

02Product Design2 to 4 weeks

Validated user journeys.

Wireframes, user journeys, design system, mockups. Full validation before coding begins.

03Iterative Build2 to 6 months

2-week sprints.

Demo at the end of each sprint. Your IT teams involved from sprint 1, pair programming available on request.

04Go-Live1 to 2 weeks

Secure switch.

Load testing, security audit, rollout plan, team training. No Go Live without measured quality criteria.

05Run & EvolutionOngoing

Maintenance or handover.

Corrective maintenance, evolutions, gradual handover to internal teams if desired. Our goal isn’t to become essential to your operations.

06 — Questions

Frequently asked questions

The questions we get most often during scoping. If yours isn’t here, reach out!

For most B2B SaaS, a shared database with logical separation is enough. For sensitive sectors (healthcare, finance, defense) or enterprise clients that require it, we fully isolate data per client. We decide during scoping, explaining the rationale.

Yes. We size it from the start to absorb your projected growth without over-engineering. If you truly take off, we’ll adapt at the right time—not before.

Yes. Audit in 72 hours, diagnosis, recovery plan. We handle AI-prototyped projects (Lovable, Bolt, v0) as well as no-code SaaS (Bubble). We map the existing system before rebuilding.

Yes. We usually add it when the first enterprise clients request it. Connection tracking and local data hosting are handled case by case.

By default with our standard partners (Vercel, Supabase). On OVH or Scaleway to stay in Europe, or on your own servers for sensitive cases. We choose with you based on your target clients and data sensitivity.

Stripe in 95% of cases. We use more advanced solutions only if your pricing model is truly complex (usage-based, multi-currency constraints).

Your choice: a maintenance contract with us (SLA, on-call, updates), or a full handover to your future team with documentation and training. The code is yours, the stack is market-standard—you’re never locked in with us.
Get started

Do you have a SaaS to launch or a stalled product to get back on track?

Contact details
contact@agence-scroll.com
+33 6 48 03 90 27
20 Rue des Taillandiers
75011 Paris
Response within 24 business hours.