Summary
✨ AI‑Generated
A founding engineering role for a senior developer building and scaling a live financial platform, owning backend architecture, payment flows, reconciliation systems, and critical infrastructure.
Highlights
Hands-on senior engineering role working directly on financial technology systems with significant technical ownership and product impact.
Description
About Digipae
Digipae is a mobile-first fintech platform: consumer payment wallet, digital identity storage, bill pay, and merchant payment acceptance, with a merchant business portal and operator admin panel on the web.
The product is live in production: 111 database tables, a double-entry ledger, custody reconciliation, fail-closed money guards, and 425 unit tests, built solo by the founder.
What's missing is a second strong engineer to build alongside that founder.The Role
Founding Fintech Engineer / Head of Engineering.
This is not a CTO co-founder title; it is a hands-on senior engineering role working directly with the founder on a live money-moving product.
You will independently understand the full path money takes through the system, from Plaid bank-linking through Stripe settlement to internal ledger reconciliation, and what happens when any piece of that fails.
What you'd work on
Stripe Instant Payouts (new merchant revenue rail, currently unbuilt)Plaid product upgrade: moving Recurring transactions and liabilities off mock dataiOS release unblock support (Socure DocV SDK compile issue under Xcode 26)Load testing and scale hardening (none exists in CI today)Ongoing work across the Convex backend, React Native/Expo mobile app, and Next.js web portalSkills required
TypeScript, Node.js, distributed systems, API designReact Native and Expo, with real native iOS/Android debugging experienceNext.js / ReactStripe Connect: ACH, payouts, refunds, disputesPlaid: bank linking, account verificationDouble-entry ledger architecture and integer-cent money handlingWebhook idempotency, replay protection, orderingTransactional database consistency, indexing, migrationsSecurity fundamentals: OAuth/OIDC, JWTs, RBAC, secrets management, encryptionReliability patterns: retries, circuit breakers, queues, dead-letter handlingObservability (Sentry/Datadog or similar), CI/CD (GitHub Actions)Prior fintech, bank-tech, wallet, neobank, processor, or payment-gateway experience strongly preferred over general SaaS backgroundCompensation
This is an early-stage, unfunded, equity-only role: no salary.
Equity range 0.5-2%, standard 4-year vesting with a 1-year cliff (25% at year one, remainder monthly over 36 months).
Full codebase access and a direct line to the founder from day one.
This role is for someone choosing ownership over cash right now.
If that's you, apply with a short note on the most complex payments or money-movement system you've worked on.
