Business-critical software, fixed.
E-commerce, legacy systems, and the integrations holding them together - when they slow down, break, or cost too much to keep running, we go in and fix the engineering. You talk directly to the person doing the work.
Three areas we go deep in
E-commerce engineering
When Magento is slow, fragile, or too expensive to run
Magento 2 / Adobe Commerce architecture, performance, Hyvä frontends, B2B and upgrades - built to hold up under real load without a SaaS bill that grows with your revenue.
Read moreLegacy modernization
When every release is a risk and nobody wants to touch the code
Inherited Rails and PHP systems, technical debt, security and performance work. We modernize incrementally with the strangler-fig pattern - not a rewrite that stalls the business for months.
Read moreIntegrations & automation
When staff copy data between systems by hand every day
Magento to ERP, accounting, warehouse and CRM - event-driven middleware that moves data automatically and eliminates manual entry.
Read more
Website for an Electrical Contractor
Website for Eleberk OÜ, a licensed electrical contractor serving Harju, Pärnu and Viljandi counties. Built with Astro - a very lightweight site that opens in under a second.
Read case studyHow we work
You keep full ownership
The code, the hosting and all the access sit on your own accounts and are fully handed over - with documentation. No rented platform, no monthly licence fee. Any developer can pick the project up.
Maintainable by design
We write documented, conventional code - not a black box only we understand. Any competent developer can take the project over, whether that's your team, us, or someone else.
Solve root causes
If an existing tool already solves your problem, we'll say so - even when a custom build would earn us more. Our goal is to make the problem go away, not pad the invoice.
A transparent process
No hidden fees, no surprise extras. Project management, time tracking and feedback are visible to you from day one - you follow the whole build in real time and take part in it yourself.
From idea to a system that holds
Discovery
We understand the business, the constraints and the real problem before a line of code.
Architecture
We design a system that survives growth and stays maintainable.
Development
We build in small, tested steps - transparently and visibly.
Launch
We ship to production with metrics, monitoring and a clean handover.
Support
The same team that built it keeps it running and evolving.
You're talking to the engineer who builds it
I started Mupax after over a decade working on high-load e-commerce systems and enterprise integrations. I kept seeing the same problems: opaque vendors, mounting technical debt, and teams firefighting instead of shipping.
More about MupaxTell us what needs upgrading, or what you want to build.
We dig deep to understand your problem, then solve it properly - you'll be talking to the person who builds it, not a sales rep.
Get in touch