• Lead Full-Stack Engineer, SAW Technologies Limited
  • 2025 to Present

Cirva

Cooperative savings (ajo/esusu) and wallet platform for Nigerian thrift groups: virtual accounts, direct-debit mandates, card issuing, and tiered KYC.

Cirva digitizes ajo/esusu, the cooperative savings tradition millions of Nigerians already trust, into a modern wallet platform. I architected the NestJS monorepo and integrated Nigerian financial rails end-to-end: SafeHaven MFB virtual accounts with NUBAN provisioning, Paystack direct-debit mandates, Sudo Africa card issuing, and Prembly/Termii for KYC and messaging. Money-movement endpoints carry idempotency keys, sensitive PII (BVN, NIN) is protected with AES-256-GCM field-level encryption, and pooled-account compliance controls are designed in from the start.

Highlights
  • NUBAN virtual-account provisioning via SafeHaven MFB

  • Paystack direct-debit mandates and Sudo Africa card issuing

  • AES-256-GCM field-level encryption for BVN/NIN

  • Tiered KYC with pooled-account compliance controls

Stack
  • NestJS monorepo
  • PostgreSQL/Prisma
  • BullMQ
  • Socket.IO
  • React Native
  • SafeHaven MFB
  • Paystack
  • Sudo Africa

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Built in Ibadan, Nigeria

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