Ship FinTech features that meet compliance, not despite it.
Plaid integrations, Stripe Connect, PCI-aware data flows. Senior engineers who've shipped financial software end to end. Built end to end, and you own the code.
The patterns we ship for FinTech teams
FinTech is the category where 'shipped fast' and 'shipped wrong' have the highest cost differential. Every pattern below was learned in production, under audit pressure, with real customer money in flight.
PCI DSS scope minimization
We tokenize, we never store. Stripe, Adyen, or a custom PSP, the principle is the same: keep PCI surface area near zero.
Plaid + Stripe Connect
Bank linking, KYC, KYB, account-to-account payments, marketplace payouts. The integrations that anchor most FinTech stacks.
Audit trail by design
Immutable event logs, queryable from day one. Auditors don't ask for evidence; they read it.
SOC 2 evidence in code
Access reviews, change management, vendor monitoring captured as automated artifacts, not after-the-fact scrambles.
HIPAA-compliant patterns
For products where finance touches health. PHI handling, BAA partners, encryption-at-rest defaults.
Ledger-aware data models
Double-entry accounting primitives that survive reconciliation. Money math that doesn't round-trip incorrectly.
Recent work, built and shipped.
Four featured projects Stacklane delivered end to end. Engineering, design, and brand on one cadence, with no internal hires required.
Frequently asked questions for FinTech
How do you keep our PCI DSS scope as small as possible?
We architect so sensitive card data flows through vetted providers like Stripe rather than your own systems, which keeps most of your stack out of PCI scope. Less data you touch means less to audit and secure.
Do you work with Plaid and Stripe Connect for bank connections and payouts?
Yes. We build account linking with Plaid and marketplace or platform payouts with Stripe Connect, including the flows and edge cases that these move through in production.
We need audit trails and SOC 2 evidence. Is that built in or bolted on later?
We design audit trails and evidence collection into the data model from the start, so who did what and when is recorded as a first-class concern. That makes SOC 2 preparation a matter of exporting what already exists, not reconstructing it.
Do you understand ledger-aware data models, or will we get generic CRUD?
We build ledger-aware models where money movement is immutable and reconcilable, not rows you can quietly overwrite. For fintech, correctness and traceability of balances come before convenience.
Stacklane is one of the best software teams we've worked with. We've thrown every kind of project at them and they deliver every time.
Let's get your FinTech product live, and growing.
We build, launch, and scale your financial software with experienced engineers and predictable pricing, so you can focus on compliance and growth. Let's talk about your next release.
Patterns we ship
Explore each pattern in depth.
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