Custom Zoho development
Deluge functions, Catalyst backends and customer-facing applications. We build the parts that standard configuration can’t give you, with a defined scope and a documented handover.
No specification needed to start. Tell us the outcome you want.
What we can build
Start with the job your business needs done. We choose the simplest suitable place for the code: a Deluge function, a Catalyst service or an application connected through an API.
When your business rules no longer fit a standard workflow, custom functions can put the logic where it belongs: in the system, rather than in someone’s memory.
For logic that needs more than a CRM function, we build serverless services in Java, Node.js and Python. Catalyst can handle the application backend while CRM remains your system of record.
Let customers complete the steps themselves: create an account, subscribe, book an appointment or raise a support request. A React interface can connect those steps to the Zoho products you already use.
You don’t need a new platform to need a developer. We can investigate a failing automation, extend an existing application or implement a defined improvement alongside your admin or partner.
Data ownership, authentication, retries and duplicate records need deliberate decisions. Our integration work covers the flow between systems as well as the code that connects them.
Built by DDH Systems · in production
For a business serving homeowners, we built three web applications on a shared React frontend, with Zoho CRM at the centre. Subscriptions, bookings, documents and support are connected through Catalyst.
See how the platform worksA clear way to work together
Our background spans .NET, Rails, React, databases, Azure and AWS. That matters when your Zoho project needs to work with the rest of your business, too.
Direct access to a senior engineer. English or French. Remote collaboration.
Share the apps involved and what you want to happen. We clarify the problem, check feasibility and tell you if we’re the right fit.
You get the proposed work, deliverables and price in writing. If the scope changes, we agree the change before doing more work.
We implement the agreed solution, test the real workflow and document the handover. You keep the code and documentation. Monthly on-call retainers are available if you need ongoing help.
Before you get in touch
No. Start with the problem and the outcome you want. We’ll help identify whether configuration, Deluge, an integration or a custom application makes sense before agreeing the work.
The day rate is the basis for estimating custom development. Once the scope is clear, we quote the agreed work in writing. Billing setup, health checks and deliverability work have their own published packages. Zoho subscriptions and third-party fees are separate.
Yes. We can take on a specific development or integration alongside your current team. We agree who owns each part and document what we change so the work can be maintained afterwards.
No ongoing contract is required for a project. You keep the delivered code and documentation. If you want us available for improvements and support, we can agree a separate monthly on-call retainer.
Start with a short brief
Tell us what you’re trying to achieve. A few sentences are enough; you don’t need a technical specification.