I'm a Backend Developer with a B.Sc. in Software Engineering, specializing in building efficient, scalable applications. I enjoy working with Django. Currently, I'm expanding my portfolio with advanced API development and integration.

• Languages: Python, SQL
• Frameworks: Django
• Databases: PostgreSQL, MySQL
• Tools: Docker, Celery, GitHub Actions, Git, RESTful APIs
• Interests: Machine learning and Model Training

An enterprise-grade healthcare administration backend built with Django 5.2 and Django REST Framework. Engineered to handle real-time appointment booking, strict schedule concurrency validation, dynamic administrative reporting, and dual-layered asynchronous notifications via Celery and Redis.

Key Highlights

• Automated Cron Scheduling:
  Leverages celery-beat to execute multi-tier, time-sensitive workflows, automatically calculating and dispatching patient reminders exactly 24 hours and 4 hours before scheduled appointments.

• Concurrency & Integrity Controls:
  Implements rigorous backend validation mechanisms to prevent double bookings and eliminate scheduling overlaps.

• Interactive OpenAPI Specifications:
  Provides comprehensive API documentation powered by drf-spectacular, delivering clean, testable Swagger UI and ReDoc interfaces out of the box.

Core Capabilities

• Schedule Lifecycle Management Tracks appointment progression securely through a structured multi-state workflow:

pending → confirmed → cancelled | to-be-rescheduled

• Omnichannel Notification Matrix Integrates:

  • Gmail SMTP for patient and administrator email notifications
  • Twilio API for direct administrative SMS alerts triggered by critical booking events

• Advanced Admin Workspace Extends the Django Admin interface with:

  • Bulk status update operations
  • Custom CSS-based color coding for rapid clinic-side triage and workflow visibility

• Dynamic PDF Reporting Generates real-time daily operational summaries as downloadable PDF reports directly from the active PostgreSQL database layer.

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A robust, production-ready fintech API backend that enables automated digital wallet management, secure peer-to-peer transfers, and third-party service integration. Built with Django REST Framework, integrated with Paystack, and secured via hybrid JWT/API Key authentication.

Key Highlights

• Production-Grade Architecture: Designed with atomic database transactions to eliminate race conditions and financial discrepancies.

• Hybrid Authentication: Supports both user-facing sessions (Google OAuth + JWT) and service-to-service automation (Granular API Keys).

• Bulletproof Webhooks: Idempotent payment processing utilizing HMAC signature verification to prevent double-crediting.

Core Capabilities

• OAuth & Identity: Google Sign-In integration that seamlessly provisioned user accounts and digital wallets upon first authentication.

• Automated Payments: End-to-end deposit flows via Paystack, managed safely through custom webhook listeners.

• P2P Transfers: Secure wallet-to-wallet fund routing using unique ledger identifiers.

• B2B Developer Features: A custom API Key generation engine allowing up to 5 active keys per user with granular scopes (read, deposit, transfer) and strict expiration/rollover intervals.

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A highly scalable, containerized microservice engineered to handle heavy media workloads asynchronously. Built with Django REST Framework, Celery, and Redis, it offloads resource-intensive image manipulation tasks to background workers, serving processed assets via a custom MinIO (S3-compatible) object storage layer.

Key Highlights

• Non-Blocking Architecture: Decouples file ingestion from CPU-bound manipulation, ensuring instant API responses (O(1) wait times for users) while workers handle image computation asynchronously in the background.
• Granular Object Pipeline: Automatically generates three optimized variations from a single upload: i. Resized images (1024×1024) ii. Compressed JPEGs (60% quality) iii. Thumbnail previews (300×300)
• Cloud-Native Deployment: Designed for independent scaling with a decoupled multi-container architecture (Web vs. Worker), optimized for both local Docker environments and cloud platforms such as Railway.

Core Capabilities

• Asynchronous Execution Offloads heavy image-processing workloads to isolated Celery workers, using Redis as a high-throughput message broker for efficient task distribution.

• Deterministic Object Mapping Enforces a structured and predictable cloud bucket directory layout, organizing assets cleanly across: /oiginals/ /resized/ /compressed/ /thumbnails/

• State Machine Tracking Maintains strict internal lifecycle transitions:

• persistent states: pending → processing → completed | failed This provides clients with deterministic status tracking through lightweight polling endpoints.

• Secure Access Routing Abstracts underlying bucket privacy configurations by securely serving assets through time-bound, pre-signed URLs generated via Boto3..

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