Abdulazeez Bello Sherif

Abuja, NG | +2349125805352 | thisisazeez0@gmail.com | sifusherif.dev

Hello. I am a software engineer focused on building scalable backend systems and robust fintech solutions. My expertise lies in architecting secure crypto exchange platforms, biometric identification systems, and high-performance financial tools using Python, PHP, and modern JavaScript.

Currently pursuing a B.Sc. in Software Engineering at Lincoln University (Graduating Sep 2026).

Online Presence

Technical Skills

Professional Experience

SwapFada — Backend Engineer (Remote)

Oct 2025 – Present
  • Engineered a Secure User Authentication & KYC System - Designed and implemented a comprehensive user authentication system in Django featuring device fingerprinting, trusted device management with rolling expiration, two-factor authentication (TOTP-based with QR code generation), and multi-tiered KYC verification (Tier 0-3) integrated with Dojah API for BVN/NIN verification; implemented email/SMS OTP verification via Twilio Verify, JWT token-based sessions with HTTP-only cookies, and account security features including login history auditing and password reset flows.
  • Built a Multi-Chain Crypto Wallet Infrastructure with Sub-Account Architecture - Developed a production-ready cryptocurrency wallet system supporting Bitcoin, Ethereum, BSC, Tron, and Polygon networks; integrated Quidax API with sub-account architecture enabling isolated user wallets, asynchronous address generation via webhooks, real-time balance synchronization, secure withdrawals with PIN verification, and comprehensive transaction ledgering using Django GenericForeignKey for extensibility to future wallet types.
  • Implemented Production-Grade Backend Infrastructure with DevOps Automation - Built a scalable Django REST API with CI/CD pipeline (GitHub Actions), Dockerized deployment with Gunicorn, Celery task queue for async operations, Redis caching, PostgreSQL with optimized indexes, Cloudflare R2 for media storage, comprehensive API documentation (OpenAPI/Swagger), and security features including HMAC-based webhook signature verification, rate limiting, and pre-commit hooks for code quality enforcement.

Ecowas Biometric Identification System — Backend Engineer (Remote)

Mar 2025 – Jul 2025
  • Developed a role-based administrative portal that streamlined application processing workflows for more than 50 offices, enabling staff to modify stages dynamically and reducing processing errors by 30%, while maintaining comprehensive audit logs supporting compliance standards.
  • Led the migration of the portal from Django to Laravel 12, integrating Inertia.js with React 19 and TypeScript, which reduced page load times by 40% and improved development efficiency by 30% utilizing Vite for rapid builds and TailwindCSS for streamlined styling.
  • Engineered a comprehensive ECOWAS Card Application System featuring NIN verification via Raven Bank API, multi-step forms, payment tracking through Paystack, and OTP-enabled document uploads; increased application processing speed by 25% while supporting over 10,000 concurrent users monthly.
  • Reverse-engineered legacy Django 1.x codebase (25,000+ lines) into modern Laravel architecture. System currently live at enbic.immigration.gov.ng.

Lincoln LLS — Laravel Engineer (Keffi, Nassarawa)

Aug 2024 – Feb 2025
  • Designed and optimized the university management system modules, supporting over 20,000 active users and processing more than ₦1.5 billion in annual payments, resulting in a 25% increase in transaction efficiency and a 15% reduction in processing errors.
  • Engineered scalable backend architectures using Laravel, PHP, and Node.js, handling peak loads of 8,000 concurrent course registrations with 99.9% system uptime, thereby enhancing platform reliability during high-traffic periods.
  • Developed user-centric frontend components with React and Tailwind, which improved student engagement by 60%, streamlined fee payment workflows, and automated receipt generation, reducing manual administrative tasks by 40%.

Corpad — Fullstack Django Engineer

May 2024 – Dec 2024
  • Engineered a versatile loan system integrating credit structures akin to the American model, enabling over 2 million naira in transactions per month while maintaining compliance and scalability.
  • Developed and launched a comprehensive rosca savings platform from MVP to initial market release, facilitating over 10,000 active users within the first three months and increasing user engagement by 45%.
  • Optimized platform performance and responsiveness for mobile devices using HTMX, Alpine.js, Tailwind CSS, and caching strategies, resulting in a 60% reduction in load times and delivering seamless PWA experiences to an expanding user base.

Projects

Freelance Marketplace Platform

NestJS, React, MongoDB, GraphQL | 2024
  • Led a team of 5 developers building a full-stack marketplace with bidding, escrow, and real-time messaging.
  • Managed lifecycle via Jira and coordinated frontend/backend integration across a distributed team.
  • Mentored junior developers in NestJS best practices and TypeScript patterns.
  • Repo: Africlancer Repositories

Education

Lincoln University, Keffi, Nassarawa
Bachelor of Science in Software Engineering (Graduating Sep 2026)

Curriculum Vitae

Download my latest resume: Abdulazeez_Sherif_CV.pdf