The customer is ready.
The integration is not.
A customer is waiting to connect to your platform, but the integration is unfinished. You need to know what remains, what access is missing and who can finish the work.
Custom API integration services
When a customer connection or system rollout is held up, you need a clear view of the work left to do. Our Belfast team builds custom API integrations between the applications your business relies on.
Tell us which systems are involved and what is holding you up. You do not need a finished specification.
Built by a Belfast engineering team.Meet the people behind the work ↗
Some of our clients







When to bring us in
Perhaps a customer cannot go live, staff are copying records between systems, or the existing connector misses a business rule. Tell us what is happening.
A customer is waiting to connect to your platform, but the integration is unfinished. You need to know what remains, what access is missing and who can finish the work.
Records arrive late, values disagree or someone checks every transfer by hand. We look at where the mismatch starts and what should happen when a transfer fails.
The connector covers the standard fields, but not your approval rules, older application or customer requirements. Those gaps are worth investigating before you replace a system.
How we start
Send us the two systems and a short description of the problem. We review the enquiry, ask for any missing context and arrange a conversation where the work looks like a fit.
.png)
We establish what each system permits, who controls access and which data needs to move. Existing documentation and safe test access help identify the unknowns.
Decide what must work first, how it will be tested and what needs more investigation. Scope, engineering capacity and fees are agreed before paid work starts.
Include failed transfers, duplicate records and changes to either system in the test plan. Agree who owns the code and accounts, and who will support the connection after launch.
An initial conversation is not a full technical audit. Repository access, detailed investigation and implementation are scoped separately.
Published project examples
These projects involved device protocols, mobile applications and shared data platforms. They show the kind of engineering behind our integration work.
McFarland Consulting / connected data
Galvia connected monitoring devices, normalised their readings and delivered the data through a shared cloud platform. The published case describes reduced site visits and faster access to monitoring information.
Read the McFarland case study ↗Stimare / product integration
Galvia developed a shared mobile SDK, demonstration app and supporting documentation to simplify barcode-scanner integration across Android and iOS.
Read the Stimare case study ↗Read the full stories for context. Published case studies do not imply an identical technical route for every project.

The people behind the work
Galvia is a Belfast software development team. We work alongside your engineers, explain the trade-offs and document what we build so your team can use it.
You can get to know the team and how we approach a project before sharing your brief.
How Martin approaches a project ↗What the work can involve
An API gives one application a defined way to exchange data with another. Custom integration adds the mapping, business rules and error handling needed when a ready-made connector does not cover the job.
Connect your product or service to a customer’s platform. Define the records, permissions and acceptance tests so both teams know what a working integration looks like.
Move customer, order or operational records between a CRM and the applications your teams use. We check the available APIs, data ownership and business rules before recommending an approach. Where the source data also needs attention, see our data engineering work.
Extend an existing application through an API or another supported interface. When no documented API exists, we investigate the permitted options before committing to a connection. Our offline field-app project shows how a new application can work with an existing database.
Review the code, logs and documentation available for an existing integration. Establish what is failing, what can be retained and what the next release needs to fix.
Not every connection needs custom software. Where an existing connector or managed integration tool meets the requirements, that should be considered before committing to a bespoke build. Our API integration project brief helps you compare those requirements.
FREE RESOURCE
API Integration Project Brief
Use our six-page project brief to record the systems, business rules, failure scenarios and handover requirements. Take it to your own team, a supplier or a conversation with Galvia.
Enter your details and go straight to the PDF. Marketing emails are optional.
12 decisions to make before you approve the build.
Before you enquire
When a standard connector cannot handle the required data, approval rules or operational controls. We compare the available routes first. A custom build should address a defined gap, not duplicate something your existing tools already do.
Those are different pieces of work. Integration usually connects interfaces that already exist. API development creates or extends an interface. If your project needs both, we identify that during scoping and agree them explicitly.
Galvia can work alongside an existing team. We first clarify access, responsibilities and who owns the systems. Taking over an existing integration needs a review of the available code, documentation and permissions. Read about our software development and team support.
Cost depends on the systems, available interfaces, business rules, data quality, testing and operational requirements. An initial conversation helps establish whether the next step is scoping or implementation. We agree the scope, engineering capacity and fees with you before work starts.
Share the date and what must be working by then. We check scope, access, unknowns and team availability before agreeing a delivery commitment.
There may be a supported file exchange, database interface or other route, but permissions, vendor terms and the application architecture need checking. Sometimes changing the process or platform is safer than forcing a fragile connection. Our ASM desktop-to-browser project shows a different route when the application itself needs to change.
Ownership, access, documentation and support responsibilities should be explicit in the agreement. We plan handover as part of the work. Ongoing maintenance, monitoring and response times are agreed separately.
Tell us what needs to connect
Tell us what needs to connect, what is not working and any date you are working towards. We review each enquiry before arranging a call.
Commercial conversations are led by Martin Naughton, Galvia’s founder and solution architect. Meet Martin.
Prefer email? info@galviadigital.com
Galvia Digital · Practical engineering for existing businesses.

Galvia Digital Ltd
Unit 1
Weavers Court
Linfield Rd
Belfast
BT12 5GH
© 2026 Copyright Galvia Digital Ltd. All Rights Reserved Copyright.