Custom software development
Custom software built around the way your business works
When off-the-shelf software forces the company to work the wrong way, the path is a custom system. SISNAWEB builds web applications, integrates with what you already use, and gets the system ready for production.
When off-the-shelf software no longer works
Most of the requests we receive do not start with a list of technologies. They start with a process that does not fit a spreadsheet, a generic ERP, or a standalone tool.
Business processes not covered by off-the-shelf software
Specific operating rules, commissions, queues, documents, or internal integrations that no SaaS covers without workarounds.
There are several systems and none is the source of truth
Records in one place, inventory in another, customer service in a third. The team rewrites data by hand.
The operation grew and the spreadsheet became a risk
Critical control still depends on a shared file, the wrong version, and someone who “knows how it works.”
The system needs to support AI and WhatsApp from the start
Building an isolated system creates unnecessary rework when customer service tools, AI agents, and APIs need to connect to it later.
What we build
We build web systems, custom applications, PWAs, and SaaS products when the client needs their own software. The work includes process discovery, architecture, APIs, screens, permissions, and, when it makes sense, integration with artificial intelligence, WhatsApp, and managed infrastructure.
We do not sell a generic “software factory” package. Every project starts from the operational problem. If the better answer is to integrate what already exists instead of rewriting everything, we say so.
Typical deliverables
- Custom web systems and internal dashboards
- Applications and PWAs for field or mobile use
- Backends and APIs for the company's system
- Integration with ERPs, databases, and equipment
- Systems that ship with a connection point for AI
- Production launch on SISNAWEB infrastructure or yours
How the project moves
Understand the process
We map the real flow, current systems, and what cannot stop during the changeover.
Define the scope
We prioritize what delivers results first. That avoids a huge system that never goes live.
Build and integrate
Development with APIs, permissions, data, and connections to the tools you already use.
Go to production
Deploy, domain, database, backup, and operations. Code without infrastructure does not solve the problem.
Who it is for
- Companies that need a specific system, not another generic license
- Companies anywhere in the world looking for a remote team to build and operate their solution
- Businesses that already have a system and need to evolve, integrate, or rewrite critical parts
- Teams that built a prototype with AI and need a professional application in production
Direct answers
Do you build systems from scratch or only integrate?
Both. We build new applications and also connect existing systems via API, database, and webhooks.
Do I need to have a server?
No. We can use SISNAWEB infrastructure or manage the server you contract.
Can I use my GitHub?
Yes. The code can stay in your repository and be deployed directly from it.
How long does it take?
It depends on the scope. A critical module can go live in weeks; a complete product is planned in stages with usable deliveries.
Frequently asked questions
Need a system that follows your process?
Tell us what is currently manual, duplicated, or impossible in the software you use today.