Custom software development
Software shaped around your business.
When off-the-shelf tools force workarounds, we build the system that fits — and connect it to everything else.
Outcomes
What changes for your business.
One system, not ten spreadsheets
Operations, inventory, billing and reporting in one place your team actually uses.
Integrated by default
ERP, CRM, payments, e-invoicing and messaging connected through clean APIs.
Built to scale
Multi-country, multi-currency and multi-tenant from day one when you need it.
What we deliver
- Business platforms & portals
- Internal operations systems
- E-commerce & marketplaces
- Billing & finance systems
- API & system integration
- Legacy modernisation
How we work
From first call to running in production.
- 01DiscoverMap the manual work. Fixed plan in days.
- 02DesignA clickable prototype before any code.
- 03BuildWorking software every two weeks.
- 04RunLaunch, monitor, keep improving.
Project
Fixed scope, fixed timeline.
Dedicated team
Your engineers in Da Nang, managed by us.
Forward deployed
Senior engineers in your team until it's live.
FAQ
Questions, answered.
How much does custom software cost in Singapore?
It depends on scope. A focused MVP typically takes 8–12 weeks; larger platforms are delivered in phases. After a short discovery we give you a fixed quote per phase, so you always know the cost before work starts.
Who owns the source code?
You do. All code, designs and documentation are assigned to you on payment, and we hand over repositories and infrastructure access at the end of every engagement.
Where is the work done?
Delivery is managed from our Singapore headquarters and engineered by our R&D centre in Da Nang, Vietnam — one hour behind Singapore, so we work your hours.
Can you take over an existing system?
Yes. We start with a code and infrastructure audit, stabilise what's there, then improve it in small, safe releases.
What technologies does HeySheep use?
We choose per project: React and Next.js for web, Flutter for mobile, Node.js and TypeScript on the back end, PostgreSQL or MongoDB for data, Magento 2 for commerce, and Microsoft Dynamics 365 and Power Platform for CRM — hosted on Firebase, Google Cloud, AWS or Azure.
Can you work under an NDA and our security policies?
Yes. We sign NDAs before discovery, follow your security policies and access controls, and can work directly inside your own cloud accounts and code repositories.
Tell us what's still manual.
A senior engineer replies within one business day.