Qyrus The data-testing interface we built for Qyrus
Qyrus is a testing company, and Qyrus Data Testing validates data pulled from multiple sources. We built the Next.js interface for defining comparison rules, running checks, and reading the results. The challenge was comparing large datasets across mismatched schemas without bogging down the browser.
- Web Development
- Backend Engineering
Qyrus The data-testing interface we built for Qyrus - what we built and why.
Qyrus is a testing company, and Qyrus Data Testing validates data pulled from multiple sources. We built the Next.js interface for defining comparison rules, running checks, and reading the results. The challenge was comparing large datasets across mismatched schemas without bogging down the browser.
What we had to solve.
Comparing large datasets from disparate sources meant letting users express custom logic without code, detecting duplicates and gaps across mismatched schemas, and rendering big result sets the browser can still handle.
- 01
Letting users express custom comparison logic without writing code
- 02
Detecting duplicates and missing records across mismatched schemas
- 03
Rendering large result sets without overwhelming the browser
- 04
Keeping comparison runs responsive as dataset size grows
- 05
Presenting validation outcomes clearly enough to act on
Who built it.
- 2 Frontend Engineer
- 1 Backend Engineer
- 1 Product Designer
- 1 QA Engineer
Built with.
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Next.js
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Figma
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{ 01 }
Custom comparison logic
We built a rule builder so users define how records are matched and validated between sources, no code required.
-
{ 02 }
Duplicate detection
We built duplicate flagging into the run, so datasets stay clean before anything downstream uses them.
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{ 03 }
Missing record checks
We built checks that surface records present in one source but absent in another.
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{ 04 }
Result reporting
We built structured result views that put discrepancies up front instead of buried in raw output.
Outcomes that matter.
The client got a configurable validation workflow that replaces manual spot-checks with repeatable, rule-driven runs.
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10x
Faster data checks
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100%
Records compared per run
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Multi-source
Validation coverage
Where it landed.
A Next.js interface that turns ad hoc data reconciliation into a configurable, repeatable workflow.
Like what you see? Let’s build something for your team.

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Have a project in mind?
Tell us where you are — pre-discovery, mid-build, or scaling. A senior engineer or designer will reply within one working day. No SDR, no slideware.






