.NET & Next.js development
Complete web applications: a C#/.NET back end proven at Hager Group, Veolia and Euro-Information, and Next.js/React front ends designed, built and hosted in production at SANFYTECH.
Next.js & React front ends
Modern, fast web interfaces: server-side rendering, careful SEO, measured performance. It is the front-end stack of SANFYTECH, the studio I co-founded, with websites in production on our infrastructure in France.
- SEO-oriented SSR and static pages
- Reusable React components
- In production on SANFYTECH websites
ASP.NET Core APIs
Clean, versioned, documented APIs: the interface contract between your front end, your partners and your internal systems. REST today, SOAP when legacy systems require it.
- Well-structured REST Web APIs
- SOAP for legacy systems
- Stable contracts for your partners
C# back-end services
Batch jobs, scheduled processing, system-to-system exchanges: the back office that runs overnight without anyone thinking about it. Four years on Euro-Information's payment batches and data transfers.
- Payment and billing batches
- Data transfers to Bouygues Telecom
- Robustness and incident recovery
SQL & NoSQL data
The right storage for the right use case: relational when consistency comes first, documents when flexibility matters. Modeling, queries, performance, and migrations that break nothing.
- SQL Server & Oracle
- MongoDB & CosmosDB
- Automated migrations with Liquibase
Taking over existing code
Your .NET application has a history: I respect it. Fast ramp-up on the code, the processes and the CI/CD, then evolutions and fixes without breaking what already works.
- 4 years on Euro-Information's IT system
- Critical production issue resolution
- Fast integration into your teams
Software quality
Code that stays readable and shippable over time: continuous analysis, systematic code review and performance testing before production makes them mandatory.
- Continuous analysis with SonarCloud
- Systematic code review
- JMeter performance testing
.NET in production
No demos: C#/.NET applications built and maintained at three major companies, in three different industries.
Euro-Information
.NET analyst developer for Crédit Mutuel’s IT subsidiary, on telecom billing applications.
Hager Group
Freelance software engineer on Industry 4.0 projects: C#/.NET every day, with ASP.NET and MongoDB at the heart of connected industrial applications.
Veolia
.NET consultant on Waterp, the customer management ERP of Veolia Water: billing, collections, quotes and field interventions.
Frequently asked questions
What I get asked most often before a .NET or Next.js assignment.
Why Next.js for a business application front end or a marketing website?
Can you take over an existing .NET application?
Which databases do you work with?
A .NET or Next.js project?
Next.js front end, ASP.NET Core API or taking over an existing codebase: the first call is free, with a reply within 24 business hours.