Backend-Focused Full-Stack Developer
Serverless Architecture | Secure Payment Systems | MongoDB | REST APIs
I design and build production-ready web systems with a strong emphasis on backend architecture, security, and scalability.
My focus is not just building interfaces — but engineering reliable systems:
- Stateless authentication (JWT)
- Role-based access control (RBAC)
- Secure webhook-based payment verification
- MongoDB indexing strategy for performance
- Serverless backend architecture
I enjoy thinking in terms of system design, data integrity, and production-grade engineering.
- Designing RESTful APIs
- Secure authentication & authorization flows
- Webhook signature validation (HMAC)
- Payment workflow architecture
- MongoDB schema modeling & indexing
- Serverless function design
- Backend performance optimization
- Node.js
- Netlify Serverless Functions
- Express-style API architecture
- JWT Authentication
- Paystack Webhook Integration
- MongoDB Atlas
- PostgreSQL (working knowledge)
- React (Vite)
- React Router
- Tailwind CSS
- Context API
- Git & GitHub
- Netlify Deployment
- Render Deployment
- Vercel Deployment
- VS Code
- Chrome DevTools
Production-grade serverless consultation platform.
Key highlights:
- JWT authentication with RBAC
- Secure Paystack webhook verification (HMAC-SHA512)
- No client-side payment trust
- Advanced MongoDB indexing strategy
- Admin dashboard & role-based backend enforcement
- Serverless deployment on Netlify
Architecture Focus:
Frontend → Serverless API → MongoDB
Paystack → Webhook → Backend Verification → Database Update
- Frontend development roles (remote)
- Backend engineering roles (remote)
- Scalable serverless systems
- Secure fintech-style payment architectures
- Database performance & indexing strategies
- Production-grade system design
Email: dev.arinzecyril@gmail.com
Open to remote frontend, backend, or full-stack opportunities.
I believe backend engineering is about integrity, security, and intentional system design — not just making things work.