I'm a backend-focused fullstack engineer who builds reliable, scalable production systems. I take full ownership of features from design to deployment—improving API performance, system reliability, and developer productivity through sound architecture and clean code practices.

I've built systems for real-money gaming platforms, multi-service food commerce startups, and website analytics tools. I also act as a code reviewer and mentor, helping teams write performant, maintainable code and debug complex cross-service issues.

Currently exploring: AI/ML integration for backend systems—building AI-powered APIs, agent workflows, and production-ready ML infrastructure.

• Built real-money gaming platform backend — Secure task validation, reward tracking, and fraud prevention systems
• Finalist at HNG 13 — Selected as top <500 out of 22,000+ participants globally
• Scaled multi-service food commerce platform — Supported ~500 active users with microservice architecture
• Acted as code reviewer & mentor — Reviewed critical PRs, debugged cross-service issues, and guided junior engineers on performance and clean code practices
• Shipped production features end-to-end — From API design to background processing to secure service-to-service communication

API Keys • Webhooks • Role-Based Access Control • Token-Based Auth

Microservices • Background Processing • Caching Strategies • State Tracking • Error Handling • Distributed Systems • Service-to-Service Communication

Production-grade backend wallet system with secure financial operations.

Tech Stack: Python • Django • PostgreSQL • Redis • Paystack

What it does:

• Complete wallet system with deposits, transfers, balance checks, and transaction history
• Google OAuth login with JWT access/refresh tokens
• Paystack payment integration with webhook signature verification
• Idempotent transaction processing (prevents double credits even with duplicate webhooks)
• Atomic transfers ensuring funds are never partially deducted
• API key system for secure service-to-service access with granular permissions and expiration
• Hashed API keys with strict usage limits

Why it matters: Demonstrates production-ready financial system design with security, reliability, and scalability at its core. Built to handle real money with zero room for error.

Technical Deep Dive:

• Atomic database transactions for all financial operations
• Redis caching for high-frequency balance checks
• Background task processing for non-blocking operations
• Comprehensive error handling and rollback mechanisms

AI backend agent that converts blog posts into platform-specific social media content.

Tech Stack: Python • FastAPI • LLMs • JSON-RPC

What it does:

• Automatically generates Twitter threads and LinkedIn posts from blog URLs
• Uses LLMs to analyze content and structure it with narrative flow
• Platform-specific formatting (Twitter character limits, LinkedIn professional tone)
• Exposed via FastAPI using JSON-RPC for standardized communication
• Integrated into Telex chat—posting a link triggers automatic content generation

Why it matters: Shows AI/ML integration with traditional backend systems. Demonstrates agent-based workflows and LLM orchestration for real-world automation.

Technical Deep Dive:

• Async processing for non-blocking LLM calls
• Prompt engineering for consistent, high-quality outputs
• Error handling for external API failures
• Structured output parsing and validation

Multi-vendor e-commerce API for inventory, orders, and payments.

Tech Stack: Python • Django Ninja • PostgreSQL

What it's building:

• Multi-vendor marketplace with independent seller storefronts
• Inventory management with stock tracking and low-stock alerts
• Order processing pipeline with status tracking
• Payment integration with secure transaction handling
• Admin dashboard for platform oversight

Why it matters: Building scalable e-commerce architecture from scratch. Focused on clean API design, performant database queries, and handling complex business logic.

Current Focus:

• Designing efficient database schemas for multi-tenancy
• Building RESTful APIs with Django Ninja for speed and type safety
• Implementing role-based permissions (vendors, customers, admins)

Real-Money Gaming Platform (Production)
Built backend for task-based gaming platform with fraud prevention, multi-role permissions, and secure reward tracking.

Multi-Service Food Commerce Platform (Production)
Owned Supplier Service backend supporting ~500 users. Implemented background processing, caching strategies, and service-to-service communication.

Sitelytics - Website Analysis Tool (HNG 13 Finalist Project)
Built notification system and admin dashboard with RBAC. Acted as primary code reviewer for the team.

Artificial Intelligence & Machine Learning for Backend Systems

I'm actively exploring how to build production-ready AI-powered backend systems:

• AI-powered APIs — Integrating LLMs into RESTful services for content generation, analysis, and automation
• Agent workflows — Building autonomous backend agents that orchestrate complex multi-step tasks (like PostCraft)
• ML infrastructure & MLOps — Designing scalable pipelines for model serving, monitoring, and deployment
• Performance optimization — Caching strategies, async processing, and request optimization for AI workloads
• Prompt engineering — Crafting reliable prompts for consistent, production-grade outputs

Goal: Bridge traditional backend engineering with modern AI capabilities to build intelligent, reliable systems that solve real problems.

Why this matters for backend work:

• AI is becoming infrastructure—backend engineers need to know how to serve, scale, and integrate models
• Agentic workflows are the future of automation—understanding how to build reliable agents is a key skill
• ML systems have unique reliability and performance challenges that backend engineers are well-positioned to solve

• HNG 13 Finalist — Top <500 of 22,000+ global participants (Oct - Dec 2025)
• ALX Software Engineering Program Graduate — OG Cohort

I'm open to Backend Engineer, Fullstack Engineer, and AI/ML Engineer roles at all levels. I'm passionate about building reliable systems, mentoring teams, and exploring how AI can enhance backend infrastructure.

📧 Email: oyebowaleabdulmuiz@gmail.com
🐦 Twitter: @muizzyranking
🔗 GitHub: github.com/muizzyranking
📍 Location: Lagos, Nigeria

"Great software engineering is about building systems that are reliable, scalable, and maintainable—systems that deliver real value and stand the test of time."