SynapseaYour processes live in spreadsheets
Shared files, copy-paste, errors: it is time for a tool that carries the business rules.
Custom development
Should you build custom software or adapt an off-the-shelf product?
Custom when your process is your edge: an off-the-shelf product would make you work like your competitors. We build web applications, SaaS platforms, back offices and APIs delivered with their tests, documentation and deployment, then evolve them with you.
What we take care of
Custom business web applications and SaaS platforms
Back offices, B2B portals and internal tools
API and service development
Mobile apps (React Native / Expo) when relevant
Takeover of existing applications and ongoing evolution
Situations
Sound familiar?
You are launching a product
A SaaS, a portal, a marketplace: you need to move fast without mortgaging what comes next.
Your vendor disappeared
An application in production, no repository, no documentation, and changes waiting.
Method
How we work
01
Functional scoping
Short workshops, user journeys, business rules, prioritization into batches.
02
Architecture and mockups
Technical choices, data model, clickable prototypes validated before any code.
03
Iterative development
Deliveries every two to three weeks, demos, automated tests.
04
Go-live
Reproducible deployment, monitoring, data migration when needed.
05
Ongoing evolution
A bank of days for enhancements, fixes and security updates.
Track record
What we have already done in this area
A donation management app, accessible by design
React Native / Expo architecture and Java 21 / Spring Boot API; WCAG-compliant components; Kubernetes infrastructure and GitLab CI.
An ERP and a CRM built around the company's own rules
Design and development of a Symfony / PostgreSQL management system with web services for third-party applications, and technical validation of the team's work.
Frequently asked questions
What clients ask before we start
Which technologies do you use?
Symfony and PHP 8, Angular, React and Next.js, Node.js, Java / Spring Boot, Python; PostgreSQL, MySQL, MongoDB. The choice depends on your context and on the team that will maintain the tool.
How is pricing set?
Fixed price per batch, after scoping: you know what is delivered and when. Later enhancements run on a bank of days.
Who owns the code?
You do, entirely: repository, tests, documentation and deployment procedures are handed over.
Do you also do design?
Yes for business application interfaces, with attention to accessibility. For a full brand identity, we work with your designers.
Related services
Services that often go together
Architecture & consulting
Choose an architecture your team can actually sustain
Architecture audits and design documents, technology choices, Tech Lead, fractional CTO.
Learn moreModernization & migrationTake back an application nobody dares to touch
PHP, Symfony, Angular and database migrations, feature for feature, with zero downtime.
Learn moreAPI & integrationsConnect your CRM, ERP and online store without a rebuild
REST APIs, connectors, data synchronization, webhooks, asynchronous processing.
Learn moreA tool to build? Describe it in a few lines.
We reply within 2 business days with a first read and, when relevant, a scoping proposal.