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Adelae Tomiwa

@adelaetomiwa

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Full-stack fintech developer building secure, scalable banking and payment platforms.

Nigeria

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What I'm looking for

I’m looking to build secure fintech and digital banking products end-to-end—owning APIs, payments, and webhook reliability—while working in an excellence- and compliance-aware team that ships dependable software.

I’m a results-driven Full Stack Developer focused on production-grade financial technology—building secure, scalable APIs, payment processing systems, digital wallets, and customer-facing banking interfaces. I work primarily with TypeScript, NestJS, Next.js, PostgreSQL, and AWS, with a strong bias toward compliance-aware, reliable engineering.

At Leadsage Africa, I built a full-scale real estate and fintech platform featuring FirstKey, a proprietary savings product provisioned through Anchor BaaS, including virtual NUBAN creation with async BVN KYC tier verification. I engineered idempotent Paystack and Anchor webhook handlers to prevent double credits under concurrent delivery, implemented Paystack recurring auto-debits for scheduled savings with full audit logging, and architected a dual-wallet system (general + savings) with real-time balance sync.

I’ve also helped deliver B2B SaaS at Staxis by ZDT by architecting a subscription platform from zero to production using Next.js 16, NestJS 11, TypeScript, and PostgreSQL with Prisma ORM. I implemented dynamic bundle pricing, discount logic, Paystack webhook-verified subscription activation, fine-grained RBAC across Super Admin/Admin/Moderator/Client, and a support ticketing system—then deployed it on AWS via Docker Compose with an Apache reverse proxy.

Beyond that, I’ve shipped end-to-end experiences across event ticketing, marketplaces, a digital school ERP, and an LMS—always centering reliability, security, and operational clarity. From Paystack inline payments and webhook-driven ticket issuance with QR codes to JWT + httpOnly cookie auth with refresh rotation and geolocation-based discovery, I enjoy turning complex fintech workflows into dependable systems that serve real users.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Ekovibe

Jan 2026 - Present (5 months)

Built an end-to-end event ticketing platform with Paystack inline payments and webhook-driven ticket issuance, including UUID QR-coded tickets and confirmation emails via Mailjet. Implemented JWT auth with httpOnly cookies and refresh token rotation, along with an admin analytics dashboard for event CRUD and booking management.

Paystack Inline Payments Webhooks QR Codes (UUID)Mailjet JWT HttpOnly Cookies Refresh Token Rotation

Current

Full Stack Developer

Current

Staxis By ZDT

Jan 2026 - Present (5 months)

Architected a B2B SaaS subscription platform for Nigerian SMEs using Next.js, NestJS, TypeScript, and PostgreSQL/Prisma from zero to production. Implemented a multi-track subscription engine with dynamic pricing and Paystack webhook-verified activation, plus digital audit scoring and fine-grained RBAC with role-based support ticketing.

Next.js NestJS TypeScript PostgreSQL Prisma Paystack Webhook Integration Subscription Billing Logic RBAC Docker Compose

Current

Full Stack Developer

Current

Leadsage Africa

Jan 2025 - Present (1 year 5 months)

Built a real estate and fintech platform featuring FirstKey savings provisioned through Anchor BaaS, including async BVN KYC tier verification and virtual NUBAN creation. Engineered idempotent Paystack/Anchor webhook handlers and recurring auto-debits with audit logging, plus a dual-wallet system with real-time balance sync and multi-role property lifecycle management.

TypeScript NestJS Paystack Webhooks Anchor BaaS (NUBAN BVN KYC)Dual Wallet Systems Arcjet Rate Limiting

Full Stack Developer

Nuvylux

Dec 2025 - Feb 2026 (2 months)

Built a multi-sided marketplace combining e-commerce and professional services, integrating Flutterwave for payments across orders and service bookings. Implemented geolocation-based service discovery with Nominatim and Haversine distance filtering, role-based access control, and Cloudflare R2 media storage.

Next.js NestJS TypeScript Flutterwave Payments Nominatim Haversine Distance Filtering RBAC Cloudflare R2 Marketplace Development

Full Stack Developer

Project Star

Sep 2025 - Dec 2025 (3 months)

Built a digital school ERP covering students, staff, parents, academics, attendance, assessments, and payments with role-based dashboards and school-level data isolation. Implemented automated SMS/email notifications, attendance tracking, and soft-delete behavior with full audit trails.

ERP Development Assessments SMS Notifications

Full Stack Developer

West Africa School of Forensic Study (WASFS)

Jan 2025 - Mar 2025 (2 months)

Built a learning management system (LMS) for online learning using Next.js (App Router and Server Actions) with multi-format course modules (video and PDF). Implemented RBAC and transactional email notifications via Resend.

Next.js App Router Server Actions RBAC API Development