Service · 2026
We build your traditional monolithic e-commerce.
A well-mastered monolithic platform is still a solid choice. We build it clean, fast and easy to evolve.
[ They trust us ]
More than 100 French and European companies trust us
















[ Method ]
Discover our services, expertise and offerings.
We support you at every stage of your application project to drive it to success. Explore our exclusive turnkey development methodology, built on the principle of continuous innovation (discovery / design / delivery), covering functional design, visual and technical design, programming, testing and fixes, through to training, deployment, security and maintenance of your solution.
Think
Scoping, functional design, visual design, technical architecture. Everything that is decided before the first line of code.
- 01
Project study
Functional spec · Personas · Roadmap
- 02
Visual design & prototyping
UI mockups · Interactive prototype
- 03
Technical design & architecture
Technical spec · Mind map · Tech stack
Build
Engineering, technical and functional acceptance, fixes through to UAT.
- 04
Engineering
Frontend · Backend · APIs · Security
- 05
Technical acceptance (MOE)
100 to 200 test cases · Fixes
- 06
Client acceptance (MOA · UAT)
UAT sign-off · Fixes
Operate
Training, public deployment, security and long-term maintenance.
- 07
Training & support
PDF documentation · Hotline
- 08
Public deployment
App Store · Play Store · Go-live
- 09
Security & maintenance
24/7 cloud monitoring · TMA
[ Tools & partners ]
The stack we mobilise.
A selection of the technical building blocks Dexon masters in the Custom e-commerce category. The final choice is decided at scoping based on project constraints (performance, scalability, compliance, cost, team).
[ Additional services ]
Two complementary missions to activate whenever you want.
Beyond the main service, we step in upstream (audit, scoping) or for long-term coverage (governance, delivery, operations). We choose together the formula that fits the timeline.
- SERVICE · 01Audit · Scoping · Strategy
Audit, Advisory & Project scoping
Before building, we look at things clearly. Audit of the existing system, scope definition, technical choices, costed plan of attack. The phase that prevents surprises 6 months later.
Let's discuss your project - SERVICE · 02Think → Build → Operate
Governance, delivery & operations
We stay with you across the three phases: strategic governance (Think), daily delivery (Build), operations and continuous improvement (Operate). No handoff, no switching.
Let's discuss your project
[ The agency ]
Entrust your project to our application experts.
Our multidisciplinary team of designers, developers and coaches brings real added value to your solution in the short, medium and long term, thanks to a perfect command of its overall architecture.
- 30
- coaches, developers and designers, experts in their fields
- 200
- applications and software products built in-house, tailor-made
- 98%
- happy clients, loyal and ready to continue their project
- 300
- algorithms and code modules, highly functional and 100% adaptable




[ Custom e-commerce ]
- 0+
- e-commerce platforms delivered
- 10
- solutions mastered (Magento, Shopify, Saleor…)
- 30 %
- average conversion uplift
- 0+
- average Lighthouse score delivered
[ Industries ]
Custom development tailored to your business.
We step in where business complexity is real. Five industries where Dexon has been operating regularly since 2024.
Industry
Shop-floor monitoring, production traceability, custom MES tools.
Healthcare
Patient apps, teleconsultation, HDS-compliant record tracking.
Transport
Route optimisation, fleet management, field-ops apps.
Finance
Management platforms, compliance, banking integrations.
Sport
Club & federation apps, ticketing, fan experience.
[ Funding ]
20%
of outsourced development costs
Innovation Tax Credit
CII-accreditation: your company can claim a tax credit on the outsourced costs of developing a solution that is new and innovative in its reference market.

50%
of the diagnostic subsidised by Bpifrance
Bpifrance Innovation expert
The “Diag Axes d'Innovation” programme: we help SMEs and mid-caps identify their innovation paths and assess the feasibility of their projects, upstream.

[ Related services ]
In the same category.
Dexon covers the entire Custom e-commerce expertise. Explore the neighbouring services, often run in parallel on the same project.
[ Press ]
They talk about us.
Nationwide coverage by BFM Business, Le Figaro, Challenges, La Tribune and CNews. An outside reading of our work and our innovations.







