yashraj.
[ Hire · Hire a Full-Stack Developer for Fintech ]

Full-Stack Developer for Fintech — KYC, Payments, Compliance 

Fintech is the domain where 'works on my machine' costs the most. I bring shipped KYC, payments, and ledger experience — and the test discipline (85% coverage) that lets a regulator's audit go quiet, not loud.

Flutter (mobile)Next.js (web)Node.js + TypeScriptPostgreSQLEvent sourcing / ledgersKYC integrations (HyperVerge, Digio, Onfido)Payments (Razorpay, Stripe, Cashfree, UPI)Audit logging + immutable records
Start a project→
See selected work↗
[ Use cases ]

Where this fits.

  • 01Lending platforms with KYC + underwriting + disbursal flows
  • 02Wealth-management dashboards with portfolio aggregation
  • 03Neobanks shipping mobile + web with shared design system
  • 04B2B fintech with merchant onboarding and reconciliation
  • 05Cross-border payment products with multi-currency support
[ Stack ]

The tools I bring.

01

Flutter + Next.js

Mobile onboarding + web dashboard sharing one design system and one API contract.

02

Node.js + Postgres

TypeScript everywhere, event-sourced ledgers, immutable audit logs.

03

KYC stack

HyperVerge, Digio, or Onfido — picked for jurisdiction and acceptable false-positive rate.

04

Payment rails

Razorpay / Cashfree / Stripe with idempotent webhooks and reconciliation jobs.

05

Observability

Sentry, Crashlytics, structured logs, SLO dashboards — so production silence is real silence.

[ Where I've shipped this ]

Real production projects.

Client
iBind
[ Common questions ]

Before you ask.

Have you actually built KYC and payments flows in production?+
Yes — iBind. Two enterprise KYC apps shipped at 85% test coverage, with eKYC, video KYC, AML screening, and document OCR integrations. Audit-ready logging, role-based access, and a clean handoff to internal compliance teams.
How do you handle PCI-DSS and sensitive data?+
Sensitive data stays in tokenised form via the payment provider (Stripe Elements / Razorpay Standard Checkout) — your servers never see PAN. For KYC documents I default to encrypted S3 buckets with short-lived signed URLs and immutable audit logs.
Can you integrate with Indian payment rails — UPI, AutoPay, NPCI?+
Yes — Razorpay, Cashfree, Paytm, and direct UPI deep-link flows. For recurring payments I implement mandate-based AutoPay with the right grace-period and dunning behaviour.
Do you handle compliance documentation?+
I produce the engineering artefacts compliance teams ask for — data-flow diagrams, threat models, retention policies, audit log specs, RBAC matrices. The legal copy itself I leave to your counsel.
[ Adjacent specialties ]

Or come at it sideways.

Hire a Flutter Developer

Open→

Hire a React Developer

Open→

Hire a Next.js Developer

Open→
[ Ready to start ]

Tell me about your project.

Most engagements start with a thirty-minute conversation. Free 60-minute consultation available.

Start a conversation→
See all specialties ↗