Their {legacy system} shouldn't be the reason your deal dies.
We design, build, and run the custom data bridge between your product and their 20-year-old system — done for you, so your engineers stay on your roadmap and the deal actually closes.
Usually live in 1–2 weeks once scopedEvery field from their legacy export is checked against a schema before anything moves. Edit a value on the left — try clearing the hire date, or typing letters into the salary.
The deal is ready. Their tech stack isn't.
An Oracle database with no API. A mainframe. A folder where a CSV lands every night — something 15 to 20 years old.
Your engineers don't have a sprint to spare for one customer's legacy system.
The deal sits in limbo — or dies quietly in procurement.
From maintaining an engineer's pet project to shipping a closed deal.
- An engineer loses a sprint hand-mapping one customer's file format
- Failures get discovered by the customer, not by you
- No record of what was sent, what failed, or why
- The next legacy-heavy deal means starting over
- We scope, build, and operate the bridge — your team stays on your roadmap
- Every run is reconciled automatically; failures alert us before your customer notices
- A full audit trail — what came in, what went out, what didn't
- The next legacy-heavy deal takes days, not sprints
Five guarantees, checked on every run — not promised once and hoped for.
AI proposes, humans approve
AI may help draft the integration at setup. Production always runs on reviewed, deterministic code.
Strict validation
Every record is checked against a schema before and after transformation.
Nothing lost
A record that fails is quarantined with the exact reason — never dropped.
Nothing duplicated
Every record is fingerprinted. A re-run can never deliver the same one twice.
The math is checked
in = delivered + skipped + failed — verified every single run.
A real line from a real run — this is what "reconciled" means: 1,284 in, 1,280 delivered, 4 quarantined for review, all four accounted for. Nothing in between.
You get a real dashboard, not just a promise.
Every bridge comes with read-only access to a console like this one — proof of what synced, what didn't, and why. Try it below (sample data).
You just fixed Priya's email in your system — press Sync now to pick it up, instead of waiting for tonight's run.
Click a name above to see what your team would see.
Legacy-heavy industries, by design
If your enterprise customers run on systems that old, we've likely seen something close to it.
A flat fee to build it, a monthly fee to run it.
Every legacy system is different, so we scope and price each integration individually rather than force it into a one-size menu. See example ranges by complexity →
Questions worth asking before you book a call
Why not just have our own engineer build this?
That's exactly the sprint they don't have — it's why the deal stalled in the first place. You're not short on capability, you're short on time to spend it on one customer's legacy system.
What happens if something breaks at 2am?
Any failed reconciliation triggers an alert automatically — that's what the monthly fee covers: someone finds out before your customer does, not after.
Do you need write access to our legacy system?
No — read-only access to the source. We never write back to or modify the legacy system, only read from it and deliver into your modern API.
Can you handle our specific legacy system?
If it's a file drop, a direct database connection, or SFTP — yes, today. Something more exotic (a specific carrier's EDI dialect, a mainframe protocol) gets scoped as part of the engagement.
Do you have other customers or case studies yet?
Not yet, honestly — we're deliberately selective about our first design partners rather than overselling traction we don't have. That's exactly why the engineering (the five guarantees above) is built the way it is.
Tell us about the deal that's stuck.
Grab 30 minutes — tell us what the legacy system is and what's blocking the close.
Prefer email? hello@shapewire.io