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SaaS & Software Development Agency
Léman

TheTechnicalPartner
ThatUnderstandsYourBusiness,
NotJustYourCode.

Track record
0+

SaaS platforms scaled to V2

100% Owned

Server & Code Ownership.

No exceptions · No asterisks

The technical co-founder you never had. We rebuild and scale SaaS platforms for founders who've outgrown their first version.

* Claim your free 30-minute architecture review. No sales pitch, just honest diagnostics.

Align my business and code
Diagnostic, not pitch.
★ ★ ★ ★ ★Founder-rated
Migration
00:00

Downtime on migration. Phased & parallel.

Zero-Downtime Migration100% Code OwnershipFIXED COSTS · NO SURPRISE INVOICESGDPR · HDS ComplianceAI-Ready ArchitectureLifetime Technical PartnerZero-Downtime Migration100% Code OwnershipFIXED COSTS · NO SURPRISE INVOICESGDPR · HDS ComplianceAI-Ready ArchitectureLifetime Technical Partner

This is engineered for one specific founder. Is it you?

Yes, right place

A.

You are in the right place if…

  • Your first version of SaaS works, but you are afraid to scale it because the foundation will not hold.

  • A developer delivered the code and went silent. You are managing the consequences alone.

  • You stopped promoting your own product because you did not trust what users would find.

  • You inherited a platform you did not build and are carrying someone else's technical debt.

  • Your platform handles sensitive data, and you are not certain it is compliant with GDPR or HDS.

No, not a fit

B.

This offer is not the right fit if…

  • You are looking for the fastest or cheapest option available on the market.

  • You want to hand over a specification sheet and not be involved in any product decisions.

  • You need a massive agency team running dozens of parallel workstreams simultaneously.

Stop managing your dev agency. Start growing with a partner.

We bring you solutions before you know you need them.

The problem

Most development shops run on the same broken playbook. You hand over a brief, they hand back a zip file, and you never hear from them again.

In between, a senior architect closes the sale, then quietly hands your core build to the cheapest junior available.

  • You end up chasing developers who respond every two weeks.
  • Paying for rework caused by decisions they made without ever understanding your business.
  • And managing a project that was supposed to free you from management.
Our approach

Léman IT doesn't execute briefs. We challenge them.

Before writing a line of code, we absorb your monetization model, your commercial constraints, and your product logic.

We don't need you to translate business decisions into technical language. That's our job.

And when the platform goes live, we don't disappear.

We stay in as your long-term technical partner, through every version, every pivot, every scale.

“A rare technical partner who truly understands business logic.”

Thibault stands out for his excellent execution, combined with a sharp understanding of the operational environment. Beyond his technical quality, he quickly grasps business challenges to propose robust, effective solutions that create long-term value.

Maren Knief ClercStrategic Advisor & COO at KC Advisory

The difference is in what we propose before you even ask.

Léman IT brings strategic insight, flags risks early, and delivers solutions that last. Not just code that ships.

Visible scope60% typical brief
Hidden scope40% invisible

A typical technical brief covers roughly 60% of what your software actually needs to survive in the market.

The remaining 40% is invisible until it isn't. Edge cases that break under real user load, operational bottlenecks your team works around with spreadsheets, and scaling infrastructure nobody thought to spec out. Most agencies build the 60%, ship it, and invoice you separately for the rest.

We map the full 100% before architecture begins.

The gaps are identified, scoped, and engineered into the core. Not discovered post-launch, fixing them costs three times as much.

A client asked for a press release page.

We built her a complete CMS instead.

She can now publish, edit, and archive press releases independently. No developer call required. No invoice triggered. No technical friction of any kind.

She didn't ask for it. It was simply the right thing to build for her business.

→ That's the 40%.

See all client systems we've built

Adapted. Robust. Effective. The three words our clients use.

Architecture01

A Stable Platform Built to Scale

Rebuilt from the ground up on clean architecture. Technical debt eliminated, vendor lock-in removed. You own 100% of the code and Server from day one. No exceptions, no asterisks.

Discovery02

Mapping Your Hidden Product Needs

The 60/40 rule applies directly to your build. We actively challenge feature logic and close architectural gaps before they become expensive post-launch emergencies.

Autonomy03

The Anti-Dependency Control Panel

A customized admin dashboard built around your actual workflows. Run and update your platform daily without a developer on call, without a technical translator, without friction.

Migration04

Zero-Downtime Phased Migration

Your current revenue stays protected throughout the entire transition. The new platform deploys in a fully parallel environment and migrates your users seamlessly. Zero operational disruption.

Infra05

Production Infrastructure & Deployment

Enterprise-grade cloud architecture with real-time performance monitoring and automatic scaling. One full year of secure hosting is included in the engagement. No hidden infrastructure costs.

Automation06

Smart API Integrations & Automation

Manual workarounds, disconnected tools, and repetitive data entry are permanently eliminated. We replace them with automated pipelines engineered to run without supervision.

Growth07

Analytics & Growth Infrastructure

Conversion tracking, user behavior analytics, and performance benchmarking are embedded into your codebase from day one. You scale on data, not assumptions.

AI · Ready08

AI-Ready Core Framework

Your architecture is engineered from the start with secure vector databases and AI-ready infrastructure. When you implement AI features, operational and API costs stay predictable, not open-ended.

“Highly competent fullstack team that proactively drives solutions.”

Léman IT's technical mastery, combined with their ability to quickly digest business needs, makes a real difference. They are rigorous, deeply professional, and constantly bring proactive technical solutions to the table.

Ambre RoguetHead of Operations at Around SA

Frequently asked, honestly answered.

Six questions every founder asks before trusting us with their core product. No fluff.

“Uncompromising professionalism and high-level technical expertise.”

I highly recommend Léman IT for their seriousness, dedication, and exceptional level of technical expertise across multiple complex projects.

Mehdi MaamorBusiness Developer at Dealzit

The first conversation is a diagnostic, not a pitch.

We look at your existing product, understand your situation, and tell you honestly what a rebuild requires, before scope or price is discussed.

Align my business and code

* Free 30-minute architecture review. No sales pitch, just honest diagnostics.

Direct line · No filters

Speak directly with the lead architect.

  • Email

    dev@leman-it.com
  • Phone

    +33635389512