Custom developmentby senior engineersfrom Marbella
For more than 15 years, we have solved real business problems for companies in Spain and abroad. We build solid, maintainable systems designed to last; AI is only used when it genuinely improves the result.
Services
What we build
Custom software, automation and applications with serious technical foundations. We do not assemble trendy tool stacks: we design systems that fit your operation and can be maintained over time.
We design and build software around your real operations: internal tools, platforms, apps and digital products with solid architecture from day one.
We connect CRM, forms, bookings, WhatsApp, ERPs and internal workflows to reduce manual work without turning your business into a fragile chain of tools.
We audit slow or legacy systems, reduce technical debt and optimize infrastructure so software becomes an advantage again, not a burden.
When acquisition matters, we design fast, restrained websites and landing pages connected to the rest of the system: SEO, forms, CRM, analytics and follow-up.
Tnaz Philosophy
"Software quality is not improvised. It is earned through years of judgement, architecture and responsibility for what gets shipped."
Tnaz comes from "tenacious": absolute determination in execution. We are a senior team with more than 15 years building software for companies, startups, consultancies and corporations across different markets.
We are not an agency born around an AI tool. We are product engineering: we analyze, design, code, integrate, deploy and maintain software with real technical responsibility.
We operate from Marbella, with experience solving problems for companies in Spain and abroad. We work with premium businesses that need reliable systems, not experiments. If you have a project in mind,
let's talk →Projects
Real friction, solved for real
Real examples from high-ticket businesses, where a slow reply or a manual process is never a minor detail — common challenges turned into a competitive edge, with software built for real-world use.
Three inboxes. One flow.
Buyers were writing in on WhatsApp, the portal and the website, and slipping through the cracks. We unified everything into one flow with an automated first response.
No appointment falls through
Bookings ran through the phone with no reminders, and no-shows were quietly eating into the schedule. A booking portal with automated reminders changed the equation.
Direct bookings, operations in order
Most bookings ran through third-party platforms, each taking a cut of the margin. A direct booking engine changed the split.
Methodology
How we turn
complexity into software
A senior process for moving from messy operations to a clear, maintainable system that can grow without losing technical control.
Understand
We audit how your business actually runs, not the version on the org chart. We understand the business, the industry and the technical constraints before writing a single line of code.
Architecture
We define the technical architecture, the data model and the system structure so it scales with your business from day one.
UX/UI
Every screen is designed around how it's actually used, not how it looks in a slide deck. Clarity first, polish second.
Development
Short sprints with real, working deliverables from the first weeks. Code that's reviewed, tested and never a black box — you can touch the product while it's being built.
Deployment
We ship to production with monitoring, backups and a rollback plan from the very first deploy — never as an afterthought.
Continuous Improvement
Launch isn't the finish line. We measure real usage, iterate on data, and leave the system ready for the business's next stage of growth.
Let’s talk
serious software for your business
Tell us what system, process, app or website you need to improve. You will hear back from a senior team that understands both business and code, not a salesperson pushing a template.