About Kaitomic

Custom systems engineering and long-term aftercare for Hong Kong businesses that need production systems, not one-off handoffs.

Kaitomic rebuilds and integrates business systems for Hong Kong companies, then keeps them running under long-term technical care.

Many businesses run on spreadsheets, manual steps and tools that only work when someone pushes them. We treat those systems as the specification: we keep what still carries the truth of the business, rebuild what does not, and stay on to keep it in operation.

We work in English or Cantonese, remotely or on-site in Hong Kong.

Businesses do not buy software. They buy the moment they no longer have to worry about their systems.
What every Kaitomic engagement is measured against

Mission

Rebuild and operate business systems so Hong Kong companies are not stuck managing the system day to day.

Vision

Hong Kong companies run on systems that stay in operation, with accountable local aftercare.

Kairos, and the smallest useful unit

Kai comes from kairos, the right moment. Atomic is the smallest useful unit. Good engineering is not doing more. It is acting at the decisive moment, then building in units small enough to be complete.

The mark

A microscope and a telescope: detail in the build, long-term care after it.

How we work

Plain language

Scopes, updates and documentation are written so business owners and technical teams understand every decision.

Aftercare is part of the product

Long-term technical care is not an add-on. It is how a system stays in operation after launch.

Local and accountable

Hong Kong-based engineering and support, with the same people responsible from scope to care.

Technology we work with

Applications

Web portals, internal databases, content-managed sites and iOS, Android and hybrid apps.

ERP and data

Project, finance and invoicing, inventory and CRM modules, with migration from spreadsheets and legacy tools.

Integration

Xero, Shopify, Odoo, SAP and similar APIs, with reconciliation checks and failure alerts.

Workflows and automation

Excel and VBA, Google Apps Script, n8n and Make, RPA, and WhatsApp and voice agents with human review.

Operations

Monitoring, backups and tested restores, security patching, and Cloud and DevOps where the stack needs it.

Design

Workflow analysis, interface design, prototypes and design systems for the software we build.

WhatsAppSheetsApps ScriptMakeNotionAirtableAnthropicGoogle

Tom Sin

Founder and principal engineer

Leads discovery, delivery and long-term care directly.

Based in Hong Kong
English and Cantonese
Principal-led delivery
Full handover on every engagement

Talk to the engineer who will build it

Share what you run today and what needs to change. We reply within one working day.

Discuss your project [email protected]

Taking new engagements