Custom Application Development
We build the enterprise applications that do not exist yet — analysis through to deployment, database through to interface — shaped around how your business actually works and built to still make sense in five years.
Describe the process, not the specification. We will come back with what we think it takes, what it has to connect to, and how we would approach it.
The Client’s Situation
Nobody sells software for the way you actually do this
Some processes are specific enough to an organisation that no product supports them properly. There is usually something on the market that comes close, and adopting it would mean changing how the business works to suit the software rather than the other way round. For a process that is a genuine part of how the organisation competes, or is simply too entangled with everything else, that trade is not worth making.
So the work goes to internal IT, who understand the domain better than anyone. What they rarely have is capacity. Requests queue behind whatever is already running, and by the time something is delivered, the need it was built for has usually moved on.
Meanwhile, the thing that eventually gets built cannot be built in isolation. It has to integrate with systems that predate it and cannot be replaced, satisfy whatever regulatory requirements apply, handle real transaction volumes, and remain maintainable long after everyone involved in building it has moved on.
What a well-built custom system leaves you with
Talk to usSoftware shaped around your process
The system follows how the work is actually done, rather than the organisation reshaping itself around what a product happens to support.
Something the next team can understand
Enterprise systems get maintained for years, usually by people who did not build them. Ours are built to be debuggable and traceable, so that when someone needs an answer in three years, the system can give it to them.
Auditability designed in, not bolted on
Where you have to be able to show what happened, when, and on whose authority, that requirement shapes the data model from the start. Retrofitting it later is expensive and never quite convincing.
One team owns the whole stack
Backend, interface, database design and deployment sit with the same people. You are not stitching suppliers together, and there is nobody to point at when the seam between two of them fails.
Code we can account for
We use AI tooling to work faster, and everything still goes through an engineer who can explain what it does and why. Nothing ships because a model suggested it.
What the work covers
1
New application development
Custom enterprise applications built end to end: backend, interface, database design, authentication and authorisation. Delivered as a production-ready system rather than a prototype for somebody else to finish.
2
APIs, integration and event-driven architecture
API design and integration, message streaming and event-driven patterns for moving data between systems reliably at volume, and shared internal libraries that remove logic being written three times in three teams.
3
Analysis, quality assurance and testing
Business analysis where the requirement needs establishing first, and testing and quality assurance as part of delivery rather than a stage bolted on before release.
4
Platform, deployment and infrastructure
Continuous integration and deployment pipelines, containerisation and orchestration, and deployment to cloud or to on-premise infrastructure where that is what the environment requires.
5
Modernisation of what already exists
Not every project starts from nothing. Moving legacy interfaces to modern component frameworks, replacing older web services with REST APIs, migrating database logic between platforms, and moving document storage to cloud object storage.
6
Ongoing development and support
Continuing feature work and support on a system after it is live, including running an existing platform while its replacement is being built alongside it.
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From the business problem to something in production
Discovery and architecture
We start with the business problem rather than the technical specification. Most enterprise software has to live inside an existing estate, so the architecture is shaped by what is already there — what those systems can expose, what they cannot, and where the boundaries should sit. Where the requirements arrive as a set of documents and an email thread, we write the specification.
Iterative build, with something to look at early
Delivery runs in sprints with the usual ceremonies, and we aim to get a working prototype in front of you as soon as it is useful. Feedback on something real changes the direction while changing it is still cheap.
Hardening before go-live
A deliberate phase, not a final sprint. Performance under expected load, security, and audit-readiness are addressed before the system goes anywhere near production, because these are the things that are painful to fix afterwards and awkward to explain.
Deployment and handover
Deployment to your environment, cloud or on-premise. Documentation, code review and knowledge transfer happen throughout rather than as a phase at the end, and where we build something your own developers will use, we teach them to own it.
We cover the whole lifecycle: analysis, architecture, development, testing and deployment. In practice, that’s four phases.
Application Development
Why organisations bring us in
Start with the process, not the product
Whether you have a process no product supports properly, a system that has outlived the framework it was built on, or simply more that needs building than your own team can reach this year, the first conversation is the same. What the job actually is, what it has to work alongside, and who will be living with the result.
What do our clients say?
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Questions we are asked
Can this integrate with our existing and legacy systems?
That is usually the whole job rather than a complication in it. Almost everything we build has to work alongside systems that predate it and cannot be replaced, so integration constraints shape the architecture from the first week. The harder question is normally what your existing systems can actually expose, and establishing that is what discovery is for.
When will we see a first working version?
Early, and deliberately so. We aim to get a working prototype in front of you as soon as it is useful rather than at the end of a phase, because feedback on something real is worth more than sign-off on a document, and because a wrong assumption is far cheaper to find in a prototype.
What is the delivery plan?
Discovery and architecture produce it, rather than it being fixed beforehand. You get a phased plan, a backlog, and a realistic view of sequencing, including which parts can run in parallel and which have to wait for something else to land.
Can you work with our existing cloud environment?
Yes, and with on-premise infrastructure where that is what you run. Deployment gets designed around your environment rather than around a preference of ours, including where a regulatory or security position means something has to stay inside your own data centre.
Will you document what you build and hand it over to our developers?
Yes, and not as an optional extra. Documentation and code review happen as the work is done, and where we deliver something your own developers will use, we run hands-on sessions until they can own it. A system only we understand is a liability we would rather not create.
Can you maintain our existing system while building its replacement?
Yes, and it is the more realistic way to do it. The current application keeps running and keeps getting features while its replacement is built beside it, with pages or modules moving across one at a time rather than everything switching at once. Where the business logic underneath is reasonably separated from the interface, most of it can be reused rather than rewritten. On paper it takes longer than a clean rewrite. In practice it is considerably less likely to fail.
How quickly can your developers join our team?
Faster than you are probably expecting, and it is the main reason clients choose us over a staffing arrangement. Our engineers already understand the kind of complex, regulated business logic these systems encode, so onboarding is about your specific environment rather than about the domain.
Start with the process, not the product
Whether you have a process no product supports properly, a system that has outlived the framework it was built on, or simply more that needs building than your own team can reach this year, the first conversation is the same. What the job actually is, what it has to work alongside, and who will be living with the result.
London Office
51 Lime Street
c/o HCR Law LLP
London EC3M 7DQ
United Kingdom
Zagreb Office
Centar 2000
Radnicka cesta 37a
10000 Zagreb
Croatia
Tell us what you are trying to build, what it has to connect to, and whether you have an internal team we would be working alongside. An engineer will come back to you.
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