Create · Business Application

Custom Business Application Development

We design custom business applications that digitize your internal processes, integrate with your Information System (IS), and support your company's growth. IT departments and business units aligned on a single tool.

Digitalization of complex and differentiating business processes.
Native integration with your IS (ERP, CRM, BI, industry-specific tools).
Proprietary code, GDPR compliance, sovereign hosting available.
Business application - Interface d'application métier avec graphiques de performance
Custom · 100% proprietary
GDPR · compliant
API · connected IS

Your teams are slowed down by tools that can no longer keep up.

We step in when standard solutions reach their limits and a custom application becomes the right investment.

Your processes are still running on Excel

Shared files, duplicates, data entry errors, multiple versions : your teams are wasting precious time and your data is no longer reliable.

Your current software is blocking your growth

Expensive maintenance, obsolete technology, unresponsive software publisher : your business tool is no longer keeping pace with your company.

Your tools don't communicate with each other

ERP, CRM, EDM, BI : each tool lives in a silo. Double data entry has become the norm and a consolidated overview is just a myth.

No SaaS truly covers your profession

Your business has strong specificities (regulations, processes, calculations). Market solutions only cover 60-70% of your needs.

Security and compliance are critical

Sensitive data, GDPR, ISO 27001, sovereign hosting : your constraints exceed what standard tools can offer.

You are paying for licenses that no one uses

Multiple SaaS subscriptions, paying for unused features : your Total Cost of Ownership (TCO) is exploding while your actual needs are highly specific.

The business applications we design.

Whatever your sector, we adapt our approach to the exact nature of your business processes.

ERP & Internal Management

Digitalization of production, purchasing, logistics, or HR. A solid business core, tailored to your organization.

Production · Logistics · HR

Back-Office Tools

Administrator interfaces, control panels, and internal tools used daily by your operational teams.

Admin · Management · Workflow

Industry-Specific Platforms

Vertical solutions for banking, insurance, real estate, energy, or training: regulations and business processes housed in the same tool.

Banking · Real Estate · HR

Legacy Application Modernization

Taking over an aging business tool : auditing, progressive modernization, and data migration, without service interruption.

Migration · Modernization

Technologies powering your business application

We choose the stack based on your context, not out of habit. Here are our areas of expertise :

The right technical choice depends on your context : business constraints, existing team, IS ecosystem, budget, and schedule. We discuss this during the scoping phase, not before.

An application ready for production.

Not just code : a complete, documented, and autonomous business application.

You are 100% owner of your business application.

Source code, technical documentation, deployment procedures: everything is handed over.

Your IT teams can take control at any time.

We train your business users and administrators. The application must be adopted, not endured. And because a business tool lives for 10 years, we design a scalable architecture intended to absorb your future needs.

Functional Specifications

Process mapping, business rules, and user journeys.

Documented Architecture

Application schema, database, and IS integration workflows.

Documented API (OpenAPI)

Exposed endpoints ready to be consumed by your existing IS.

Automated Testing

Unit and functional tests to ensure reliable future updates.

CI/CD Pipeline

Automated deployment, testing, and production environments.

100% Proprietary Source Code

Full transfer, with no licensing or vendor lock-in.

Why IT departments and business lines choose us together

Three concrete commitments, not just slogans that reassure both your IT and operational teams.

01
Your business lines validate, your IT sleeps soundly
Functional demos every 2-3 weeks for business users. Code is reviewed, documented, and auditable for your IT. No one is left out.
2 weeks between each user demo
02
Your code belongs to you, without any lock-in
Standard open-source stack, documented architecture, and a transferred Git repository. You can take over the project internally or change providers; it's written in the contract.
100 % proprietary source code
03
The same team from scoping to production
The senior developers who meet your business team at the kick-off are the ones who will write the application.
< 5% turnover on your projects

From scoping to production in 4 steps

An iterative method designed to align IT, business, and users at each milestone.

01

Analysis & Design

Workshops with your operational and IT teams. Process mapping, prioritization, and initial UX mockups.

2 - 4 weeks
02

Agile Development

Iterative sprint-based development with regular demonstrations to validate each feature.

3 - 6 months
03

QA & Optimization

Performance testing, security audits, and final validation before going into production.

2 - 3 weeks
04

Launch and Maintenance

Secure deployment and continuous support (Application Maintenance) to evolve your application.

Continuous

Have a business application project in mind?

30 minutes with a TheCodingMachine expert to scope your needs, identify pitfalls, and get an initial budget estimate.

Business Applications : 20 years of experience

+ 1500
business projects delivered
+ 20
years of application expertise
+ 80
senior developers
100 %
proprietary code transferred

The experts designing your business application

Senior profiles who speak both business and technical languages. Your contacts from the first to the last sprint.

Portrait d'un jeune homme souriant, chemise verte, dans un contexte professionnel.
Yassine HADARI
Chef de Projet
Symfony Vue js
"Mieux vaut une fonctionnalité simple et stable en production qu'une idée parfaite qui reste sur un brouillon."
8 ansd'expérience
+ 25projets livrés
Portrait THB
Thibaut Balmette
Directeur de projet
Management Commercial
"Un bon développement, c'est un compromis maîtrisé entre rapidité, qualité et utilité."
10 ansd'expérience
+ 36projets livrés
Portrait d'Aurélien Mutin, collaborateur souriant devant une fenêtre
Aurélien Mutin
Directeur technique régional
Architecture Intégration SI Conception produit
"Le meilleur code, c'est celui qu'on n'a pas besoin d'expliquer à son équipe."
10 ansd'expérience
+ 50projets livrés
Portrait KEN
Kévin NGUYEN
Directeur technique associé
RGPD Performance
"Pas de complexité inutile. On répond au besoin d'aujourd'hui tout en gardant la porte ouverte pour demain."
20 ansd'expérience
+ 120projets livrés

Frequently asked questions about business applications

What is a custom business application ?

A custom business application is software developed specifically to meet your company’s unique processes. Unlike standard SaaS solutions, it adapts 100% to your organization, your business rules, and your existing Information System.

Why develop a business application rather than buy market software ?

Custom-built becomes relevant when your process is a differentiator, when market solutions only cover 60-70% of your needs, or when licensing costs eventually exceed proprietary development. You gain agility, integration, and intellectual property.

How do you guarantee integration with our existing IS (ERP, CRM) ?

We design API-oriented architectures (REST, GraphQL) with dedicated connectors to your existing tools: SAP, Salesforce, Microsoft Dynamics, Sage, etc. A prior audit maps your IS to define data flows and ensure consistency.

How long does it take to put a business application into production ?

An operational business MVP can be delivered in 3 to 4 months. A complete multi-module application spans 6 to 12 months with monthly iterative deliveries to validate each feature with business users.

What happens after going into production ?

We provide Application Maintenance Services: corrections, evolutions, monitoring, and version upgrades. You retain 100% ownership of the code and can take over maintenance internally or with another provider at any time.

Let's talk about your web project

Describe your needs and we will get back to you within 48 hours with an initial technical analysis and budget estimate.