Custom software development for businesses
Important work running in spreadsheets, email threads or tools that no longer fit how you work.
In short
Lintel builds custom software for businesses whose processes don’t fit off-the-shelf tools: internal tools, customer portals, dashboards, booking and quoting systems, and the APIs behind them. We scope what the software must do, build it in stages you can use early, and hand over code and documentation you own.
Who it is for
Companies running important work in spreadsheets, email threads or a patchwork of tools, and teams that have outgrown a no-code setup or an off-the-shelf product that no longer fits how they work.
What we build
- Internal tools: admin panels, approval workflows and operations dashboards.
- Customer and partner portals: account areas, order and document access, self-service tools.
- Business applications: booking, quoting, scheduling and inventory systems built around your process.
- APIs and integrations that connect the software to the systems you already use. See API integrations.
- Mobile companions when staff or customers need the same system on a phone. See mobile app development.
How we work
- Write down the process and the problems first, with the people who do the work.
- Agree on a first version that solves the most expensive problem.
- Build in short stages, with working software to review at each step.
- Hand over the code, documentation and access, so the software is yours.
Technology
We choose the stack per project and explain why. For web interfaces that is usually TypeScript and React, often with Next.js; see React and Next.js development. Security basics such as access control, input validation and protection against common web vulnerabilities are part of every build.
How an enquiry works
- Send a short briefTell us about the store and what isn’t working.
- We review itUsually within 24 hours.
- Scope and pricingWe discuss what the work involves and what it costs.
- Go ahead if there’s a fitThe project starts once scope and price are agreed.

Gencer KarakayaFounder & Shopify Engineer
Every brief is reviewed by the founder.
Questions
- Who owns the code?
- You do. We work in repositories and accounts you control, and hand over documentation with the code.
- Can you work with our existing systems?
- Yes. Most custom software has to read from and write to systems that already exist, and we plan those integrations as part of the scope.
- How do you price custom software?
- After scoping. We describe the first version, estimate it, and agree on it before the build starts.