Custom software
and web application development
for businesses
We digitise operational processes, connect your systems through APIs and build private portals, SaaS platforms and high-performance mobile apps.
No commitment · We reply in less than 24 h
What custom development includes
- Scalable software architecture for web and mobile (React / Next.js / Node / Python)
- Client portals, extranets and private areas with granular access control
- Automation of operational processes (no more repetitive spreadsheet tasks)
- Two-way API integration with ERPs (SAP, FacturaScripts, Holded), CRMs and payment gateways
- Optimised high-performance databases (PostgreSQL, MongoDB)
- Native mobile apps and PWAs with offline sync
- Security audit (OWASP standard), automated tests and CI/CD deployment
Why your own software beats a closed platform
- Ownership
- 100% proprietary, transferable code, with no technology rentals or locked-in platforms
- Performance
- Ultra-fast APIs and an architecture without bottlenecks
- Methodology
- Agile, with two-week sprints and tangible working progress
- Security
- By design: data encryption, automated backups and GDPR compliance
- ROI
- We automate tasks to cut your team's working hours
Our 4-phase methodology
Discovery and architecture
We analyse the bottlenecks in your operations, define the technical requirements and design the optimal data model.
UX/UI prototyping and validation
We design the interactive screens to validate the user experience and workflows before writing code.
Agile development and integrations
Modular, phased development with working deliveries every two weeks, connecting your APIs, databases and external services.
Deployment, monitoring and support
Go-live on secure, high-availability servers with 24/7 monitoring, backups and continuous evolution.
What kind of software do we build?
We create digital tools designed to solve real operational problems and increase profitability.
B2B portals and extranets
Private areas for clients or distributors with invoice downloads, recurring orders, document management and real-time case tracking.
Ideal for: Accounting firms, distribution, logistics
Appointment and booking management
Automated 24/7 booking systems, payment gateway for deposits, incident photos and automatic WhatsApp and SMS notifications (like our ReparaCita software).
Ideal for: Workshops, clinics, hospitality
API and ERP integration
We connect your website and tools to your management software (SAP, FacturaScripts, Holded), syncing stock, customers, invoices and orders without duplicating work.
Ideal for: Companies with multiple systems
Mobile apps (iOS / Android)
Native apps and PWAs built with React Native for field teams, mobile technicians or end customers, with push notifications and offline mode.
Ideal for: Home services, field service
SaaS and subscription platforms
End-to-end development of recurring digital business models: user onboarding, automatic payments with Stripe/SEPA and an isolated multi-tenant dashboard.
Ideal for: Startups and digital products
Security and data encryption
Security audits, encryption of sensitive information (AES-256), two-factor authentication (2FA) and strict compliance with the European GDPR.
Ideal for: Medical, financial and legal data
Solutions running in production
See examples of software and applications we have designed and built from scratch.
ReparaCita · Software for 4.0 workshops
A complete platform for online appointments, vehicle check-in with photos of faults, approval of PDF quotes with digital signature and automatic WhatsApp notifications.
Software for restaurants
Interactive real-time table booking system, self-managed digital menu with QR code and payment gateway integration for premium bookings.
Modern, scalable architecture
We build web applications tailored to your company's goals. From the initial analysis and strategic planning to implementation, we use cutting-edge frameworks and technologies (React.js, Python FastAPI, Node.js and PostgreSQL) that ensure robust performance and efficient management.
Dynamic applications without bottlenecks
Our solutions are designed to grow with you. Modular, scalable architectures let you add new features without compromising performance, ensuring the application adapts as your business evolves and demand increases.
Proven technology stack
We use well-established tools to deliver long-term stability:
- Frontend
- React.js, Next.js and Tailwind CSS for ultra-fast, responsive interfaces
- Backend
- Node.js and Python for solid, secure, high-traffic business logic
- Databases
- PostgreSQL and MongoDB for relational integrity and data flexibility
Optimised user experience (UX/UI)
User-centred design is key to adoption by your team and your customers. We create intuitive interfaces that remove the need for long training courses.
Smart automation and integrations
We build automated workflows and connect systems through APIs, ensuring efficient syncing and reducing the need for manual work in spreadsheets or scattered emails.
Guarantees for your business
- 100% proprietary code with no lock-in.
- Demonstrable operational efficiency and return on investment.
- Advanced security, automatic backups and GDPR compliance.
- Direct technical support and ongoing evolutionary maintenance.
Do you also need a corporate website or an online shop?
If, beyond internal tools, you need to boost your sales pipeline and visibility on Google, take a look at our professional web design service and our SEO strategies.
Frequently asked questions about custom development
When standard commercial tools force you to change the way you work, charge you excessive monthly licences for every additional user or don't integrate with your other programs. Custom software adapts 100% to your unique processes and becomes an asset of your own company.
A working Minimum Viable Product (MVP) is usually ready in 4 to 8 weeks. Complex business developments take between 3 and 5 months. We work with an agile methodology in 2-week sprints so you can test working modules from the first month.
The source code is 100% owned by your company once the project is completed. We hand over the complete repository, the technical documentation and the deployment credentials. We have no lock-in clauses or captive dependencies.
Yes. We develop with React Native and Flutter, which lets us compile high-performance native apps for iOS and Android from a single codebase, reducing development costs and making future maintenance easier.
We choose the architecture according to the scale of the project: on the Frontend we use React.js, Next.js and Tailwind CSS; on the Backend, Node.js or Python (FastAPI/Django); and for Databases, PostgreSQL (robust relational) or MongoDB, with Docker and Kubernetes architectures.
Yes, we specialise in API integration. We connect your custom software to any existing system: ERPs (SAP, FacturaScripts, Holded), CRMs (Salesforce, HubSpot), banking gateways (Stripe, Redsys, SEPA) or messaging systems (WhatsApp Business API, Emailit, Telegram).
We offer preventive support and maintenance contracts with 24/7 downtime monitoring, security patches, automatic daily backups and a fast-response SLA for any technical incident.
Do you have an idea or process that you want to digitise?
Tell us what your business needs and we'll send you a detailed technical proposal and a fixed, no-commitment quote within 24 hours.