Software built to last.
We design, build and evolve the software that runs our clients' businesses: web platforms, mobile apps, internal tools and AI agents. One team, from architecture to production.
What we do
Web applications
SaaS platforms, customer portals, back offices and internal tools, built for thousands of concurrent users and always-on availability.
Mobile apps
Native or cross-platform iOS and Android, with built-in payments, geolocation, notifications, offline mode and store publishing.
E-commerce and marketplaces
High-volume stores, multi-vendor marketplaces, multi-currency checkout and logistics integrations.
Artificial intelligence
Conversational agents, business assistants, semantic search, document classification and process automation, running on our own servers.
Business software
Custom ERP, CRM, inventory, scheduling and billing, connected to the tools you already use.
APIs and integrations
Robust API design, connectors for payments, accounting, shipping and marketplaces, real-time sync.
What we build
A few of the projects our teams design, ship and run.
- Multi-vendor marketplace
- On-demand delivery app
- Super-app with built-in payments
- B2B SaaS platform
- Banking and wallet app
- Booking platform
- Custom ERP and CRM
- AI customer support agent
- Real-time BI dashboard
- Social network and messaging
- IoT and connected devices app
- Online learning platform
At scale
Millions of requests
Distributed architectures, caching and message queues that absorb peaks without slowing down.
Multi-country, multi-language
Currencies, taxes, time zones and languages handled natively, from Europe to Asia.
Always on
Zero-downtime deployments, instant rollback and 24/7 monitoring.
In production
$ gdr deploy --env production✓ build 214 modules · 1.8 s✓ tests 1 284 passed · 0 failed✓ security 0 vulnerabilities✓ rollout eu-west · us-east · ap-east→ live https://app.client.comzero downtime · rollback ready
Who it's for
Startups
From prototype to production, on a technical foundation built for growth.
Established companies
Legacy tool overhauls, cloud migration and process automation.
International groups
Platforms rolled out across markets, with multiple teams and compliance requirements.
How we work
- 01
Scoping
Workshops, requirements, architecture and precise estimates.
- 02
Design
User flows, mockups and prototypes signed off with your teams.
- 03
Development
Short sprints, regular demos, automated testing.
- 04
Launch
Deployment, monitoring, maintenance and continuous improvement.
In detail
- Languages
- TypeScript, Python, Go, Swift, Kotlin
- Architecture
- Microservices, event-driven, real-time
- Delivery
- Continuous integration and deployment
- Ownership
- Source code and data handed to the client
FAQ
What kinds of applications do you build?
Web and mobile apps, SaaS, marketplaces, business software and AI solutions, from prototypes to platforms used by millions.
Do we own the code?
Yes. Source code, documentation and data are handed over to you. You're free to evolve the project with us or with another team.
Can you take over an existing project?
Yes. We audit the code, stabilize what's there, then evolve the application without disrupting your business.
Do you provide maintenance?
Yes, with 24/7 monitoring, fixes, security updates and planned improvements.







