From mobile apps, websites and full applications to bolt-ons to existing software. Built from Dublin and London and starting with a working prototype rather than a specification.
Most business software is a compromise. You buy a platform, then bend the process to fit it, or pay a consultancy to bend the platform back. Custom development inverts that: the software follows the process, and the process is usually where the advantage lives.
AI has changed the economics of this. Work that used to justify a year of engineering time can now land in weeks and months, so a whole class of problems that were correctly judged “not worth building” are worth reopening. Not everything should be custom, but the line has moved and most buy-versus-build decisions in place today were made on the old numbers.
We typically build for mid-sized and large organisations across Ireland and the UK, from our teams in Dublin, London and Hungary. Every engagement opens with a free discovery session and, wherever the idea can be tested, a working prototype before anyone commits to a full build.
Replace the platform
Or build around it
The first question is not what to build. It is how much of the software you already run needs to change. Almost every engagement lands in one of two shapes, and choosing the wrong one is expensive in both directions: replacing a platform you should have kept, or papering over one that has genuinely run out of road.
Build the application, retire the licence. The right call when the software you pay for is the process, and it does not fit it.
What we build: the whole application, covering data model, interface, integrations, authentication, reporting and hosting, plus the migration off the platform you are leaving and the support arrangement that follows.
Leave the system of record exactly where it is and build only the workflow around it. Lower risk than replacement, and frequently the better return.
What we build: a focused application sitting alongside the platform and integrating through its API. No migration, no retraining the business on something new. The platform stays the system of record; the bolt-on does the work around it.
In practice most organisations need both over time, and AI use cases in particular tend to arrive as bolt-ons, because the value is in reading, checking, drafting and routing work that already flows through systems you have no reason to replace. A discovery session is normally enough to tell which shape a given problem is.
Everything we build starts as a prototype not just a specification. It starts as something you can click: typically working software within two to four weeks, built against real data and real workflow so the feedback you get back is real too.
Test the concept with the people who would use it, before the budget is committed. A prototype answers the questions often noone has even thought about.
We show working software every week rather than status reports. Changing direction is cheap while the product is still small, and expensive later.
Most of what derails a build gets discovered late. Surfacing it in week two instead of month six is the entire return on prototyping.
A prototype is also a legitimate place to stop. If it shows the idea does not hold, you have spent a few weeks finding that out instead of a year.
We design, build and support the full application lifecycle:
Wireframes, user flows and a clickable prototype, agreed with the people who will actually use the system rather than signed off in the abstract.
Built in short cycles with code review, automated tests and a staging environment you can look at any day of the week, not only at milestones.
Deployment, handover and documentation, then an ongoing arrangement for maintenance, monitoring and the next round of changes, or a clean handover to your own team if that is what you want.
We pick the stack to fit the problem and the team who will inherit it, not the other way round. In practice that means Python with Django, or Node.js, on the back end; React and Next.js on the front end; React Native for mobile; and .NET where an existing estate calls for it.
Applications run on AWS, Microsoft Azure or Heroku, fronted by Cloudflare, with source control and CI/CD on GitHub and payments through Stripe. AI features are built on Azure OpenAI, OpenAI and Anthropic Claude models, integrated into the application rather than bolted on as a chat box.
Replacing means we build the application and you retire the licence. That is the right call when the software you pay for is the process, and it does not fit that process well.
Bolting on means the platform stays exactly where it is as the system of record, and we build only the workflow around it: the screen, report, approval flow or integration the vendor will never build. It is the lower-risk option and often the higher-return one.
Most prototypes are working software within two to four weeks, built against your real data and real workflow rather than sample content. You get something you can click and put in front of the people who would use it, not a specification to argue about.
You do. Everything we build is delivered into your own repositories and your own cloud accounts, with no licence back to us and no dependency on Mosaic to keep running it.
Yes. Launch includes deployment, handover and documentation, and most clients continue with an ongoing arrangement covering maintenance, monitoring and the next round of changes. If you would rather your own team took it on, the handover is built to make that possible.
Regularly. We can lead delivery with your team embedded, contribute to a team you already run, or hand a prototype over for your developers to take to production. Where the need is extra engineering capacity rather than a defined build, our developer outsourcing service is usually the better fit.
No. We are based in Dublin and London with team members in Hungary and the Middle East, and we work with organisations across Ireland, the UK and Europe. Discovery and key milestones are usually in person where geography allows; the rest of delivery is remote.
That is what the discovery session is for. Bring the process that is costing you the most and we will tell you which shape the fix takes, free of charge.
