Understand how things really work
Users, constraints, business rules. Listen before proposing a solution.
Independent developer · Caen & remote
Bespoke business applications.Your processes
have their logic.
Your tools too.
I build business applications, internal tools and APIs that connect your data and make life easier for your teams.
Understand. Structure. Build.
Live demo
Data comes in. Something useful comes out.
A French municipality becomes a structured record, ready to use in a business application.
YOUR BUSINESS STARTS SOMEWHERE.
Run a search to see the record, the map and the processing steps.
No API call on page loadOne input, usable data.
Caen
Example
- Department
- Calvados
- INSEE code
- 14118
- Postcodes
- 14000
- Population supplied by the API
- 109,400 residents
View the technical steps
Server processing report: 0.83 ms. No simulated progress.
- Saved example selected. No input to validate.
- Saved example loaded. No API call.
- API calls made
- 0
- Matching municipalities
- 1
- Processing ID
- 254a2809-6d79-4aef-83e4-cda7bb28e204
Storage: none. Read-only public referential, no database writes. No emails or notifications sent.
Source: French administrative division API, a referential imported on the server. The search runs locally, with no external call. You can also open the saved Caen example.
01 / A METHOD BEFORE A STACK
Understand.
Structure.
Build.
Make the need clear
Map the data and the steps. Define priorities and a useful first version.
Build, test, hand over
Develop with regular feedback. Deliver maintainable software and help people get started.
Before becoming a developer, I coordinated community education projects, including at UFCV Normandie. That background shapes how I work: connecting needs, users and the solution.
02 / EXPERTISE
Tools shaped around
your way of working.
Scattered files, duplicate data entry, a tool that no longer keeps up? I start with how you actually work to build a solution that fits.
Structure your work
Business applications and internal tools: records, approvals, responsibilities and dashboards.
Bespoke business applications- Tracking records, requests, orders or interventions
- Managing statuses, approvals and responsibilities
- Dashboards for business teams and managers
Keep your data flowing
APIs and integrations: connect your software, automate data exchange and make imports reliable.
Symfony API development- API contracts readable by business and technical teams
- Security, roles, validation and OpenAPI documentation
- Integrations with web frontends, internal tools or partner systems
Improve existing software
Audits, takeovers and incremental development: understand what works, fix the obstacles and plan the next steps.
Audit before taking over code Symfony upgrades- A map of technical and functional risks
- Review of dependencies, versions, security, data and deployment
- Prioritised fixes, migrations or targeted rebuilds
A technical foundation that fits your needs. Symfony · PHP · APIs · web interfaces · deployment
03 / SELECTED PROJECTS
Different contexts.
The same focus on everyday use.
Industry, connected devices, mobile use and accessible materials. Four projects showing how a need becomes a usable system.
Circular Certified
01
Illustrative diagram · not a product screenshot
Industry · agency project
Schneider ElectricOrganise returns. Track equipment.
An agency project combining e-commerce for refurbished equipment with a business platform for managing returns.
- The problem
- Improve the existing e-commerce system and organise product returns while meeting traceability requirements.
- My role
- De 2022 à 2025, nous étions deux développeurs sur le projet. J’intervenais sur le développement, la relation client, la recette, le déploiement et la formation.
Solution & outcome
Contributed to the PrestaShop redesign and a returns platform built with Symfony 5.4, then upgraded to 6.4, with Stimulus, PWA support, PDF generation and DHL shipping labels.
De 2022 à 2025, le chiffre d’affaires annuel de la boutique est passé d’environ 500 k€ à 2,5 M€. Un résultat collectif, porté côté développement par une équipe de deux.
From software to the field
02
Illustrative diagram · not a product screenshot
R&D · agency project
HorsplaceConnect an application to a stable’s displays.
An R&D project on e-ink displays for stalls in the Horsplace ecosystem: care, schedules and feeding information directly in the stable.
- The problem
- Make software, hardware and firmware work together in an exploratory setting with low-power constraints.
- My role
- R&D, API proxy development and technical coordination with engineers in China.
Solution & outcome
An API proxy to coordinate exchanges between application modules and e-ink devices, with incremental decisions on hardware and firmware integration.
A clearer technical foundation connecting the system’s components. Experience of designing amid uncertainty and coordinating internationally.
Documents within reach
03
Illustrative diagram · not a product screenshot
Business application · personal project
Doc2SailShare the right documents, by the water.
A request from an international race official: centralise official documents, crews and sharing between race committees.
- The problem
- Organise and share varied information in a mobile setting without making access more complicated.
- My role
- Design from the initial need through to deployment: product priorities, development and an interface suited to use in the field.
Solution & outcome
A Symfony 7 application with secure link authentication, QR-code sharing and a responsive interface with PWA support. Docker deployment with FrankenPHP.
A centralised tool for distributing documents. A complete personal project designed to be easy to use in the field.
From text to visual support
04
Illustrative diagram · not a product screenshot
Business application · social care
PictoRecetteMake a recipe clear, step by step.
A tool designed around a need in social care: turn written recipes into visual materials for cooking workshops.
- The problem
- Structure ingredients, quantities, utensils and steps for people who find reading or understanding difficult.
- My role
- Application design and development: data model, integration of external sources, pictogram matching and PDF generation.
Solution & outcome
A Symfony 7 application that organises recipes, normalises external data and matches ARASAAC pictograms before producing a printable illustrated sheet.
Recipes in a consistent visual format, editable by professionals and exportable as PDFs for use in workshops.
A FEW POINTERS
Before we talk.
Do I need a specification first?
A need, a few pain points and some examples are enough to start. Scoping helps clarify usage, priorities and boundaries before development.
Can you take over an existing application?
Yes. I start by understanding how it works, its constraints and the difficulties you face. An assessment then helps identify worthwhile improvements.
Do you only work in Normandy?
I am based in Caen and work across Normandy. I also work remotely with teams in France and internationally, in both French and English.
YOUR NEED IS THE STARTING POINT.
Your project,
in a few steps.
A quick message, or four questions to prepare a quote request. Your request is sent directly to BHN Logic.
contact@bhn-logic.fr
06 73 37 33 10
Caen · Normandy · Remote
Business application development in Caen
YOUR ESTIMATE REQUEST
Step 1 of 5
- Project
- Organisation
- Budget
- Timing
- Contact details