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.
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 · HRBack-Office Tools
Administrator interfaces, control panels, and internal tools used daily by your operational teams.
Admin · Management · WorkflowIndustry-Specific Platforms
Vertical solutions for banking, insurance, real estate, energy, or training: regulations and business processes housed in the same tool.
Banking · Real Estate · HRLegacy Application Modernization
Taking over an aging business tool : auditing, progressive modernization, and data migration, without service interruption.
Migration · ModernizationTechnologies powering your business application
We choose the stack based on your context, not out of habit. Here are our areas of expertise :
Langchain development agency
Voir la page technoThe 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.
From scoping to production in 4 steps
An iterative method designed to align IT, business, and users at each milestone.
Analysis & Design
Workshops with your operational and IT teams. Process mapping, prioritization, and initial UX mockups.
2 - 4 weeksAgile Development
Iterative sprint-based development with regular demonstrations to validate each feature.
3 - 6 monthsQA & Optimization
Performance testing, security audits, and final validation before going into production.
2 - 3 weeksLaunch and Maintenance
Secure deployment and continuous support (Application Maintenance) to evolve your application.
ContinuousHave 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
The experts designing your business application
Senior profiles who speak both business and technical languages. Your contacts from the first to the last sprint.




Our other areas of expertise
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.