Backend Engineer & System Architect

I architect backend systems
that scale without breaking

Designing databases, engineering APIs, and building the invisible infrastructure that powers applications.

PythonPostgreSQLSystem DesignClean Architecture
Let's Talk
1+Years Experience
3+Projects Built
Python · PostgreSQL · FastAPIStack
System DesignFocus

Selected Work

Case Studies

Deep dives into systems I've designed and built.

Architecture Showcase

How I Design Systems

Interactive visualizations of real database schemas and system architectures I've designed.

Interactive ER Diagram Explorer

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Request Flow Architecture

01
Client

HTTP request originates from the frontend application or external API consumer.

02
API Gateway

Request enters through the gateway which handles routing, rate limiting, and initial validation.

03
Auth Middleware

Authentication and authorization checks. Validates JWT tokens or API keys before proceeding.

04
Service Layer

Business logic execution. Orchestrates use cases and coordinates between components.

05
Cache Layer (Redis)

Checks cache for frequently accessed data to reduce database load and improve response times.

06
Repository

Data access layer — translates between domain models and database queries.

07
Database

Persistent storage. Executes queries and returns results through the stack.

Architecture Decisions

Why Event-Driven Architecture

Decoupled services communicate through events, enabling async processing, fault isolation, and independent scaling of components.

Why This Database Schema

Normalized to 3NF with strategic denormalization for read-heavy queries. Time-series optimized with proper indexing.

Why Async Processing

Non-blocking I/O handles thousands of concurrent connections. Background task processing keeps API responses fast.

Why Transaction Safety

ACID compliance with serializable isolation for financial operations. Idempotency keys prevent duplicate processing.

Expertise

Technical Skills

Click any category to explore specific technologies and concepts.

System Architecture

Designing scalable, maintainable backend systems

Data Persistence

Database design, optimization, and management

Backend Development

Building robust server-side applications

DevOps & Tooling

Infrastructure and deployment practices

Language-Independent

Transferable engineering principles

About

The Architect

I believe the best backend code reads like documentation: explicit, predictable, and self-describing.

I'm Michael — a backend engineer who architects systems where correctness under concurrency isn't optional. I design databases that scale, APIs that stay consistent, and infrastructure that doesn't wake you up at 3am.

My focus is on the invisible foundation: the schemas, pipelines, and architectures that power applications. Whether it's designing a multi-tenant data model, engineering an async event processor, or planning a zero-downtime migration — I build systems that work reliably at scale.

01

Understand

Map the problem space before writing code

02

Design

Architecture decisions documented and justified

03

Build

Clean, tested, maintainable implementation

04

Verify

Performance testing, security audit, monitoring

Testimonials

What People Say

Michael's approach to system architecture is meticulous. He doesn't just write code — he designs solutions that account for edge cases, scalability, and maintainability from day one.

Alex Chen

Senior Backend Engineer

Previous Team Lead

Working with Michael on the payment system architecture was a masterclass in thoughtful design. His understanding of ACID compliance and transaction safety gave us confidence in production.

Sarah Okonkwo

Full-Stack Developer

Group Project Collaborator

The database schemas Michael designs are a work of art. Everything is normalized properly, indexed strategically, and documented thoroughly. He thinks about queries before they're written.

James Adewale

DevOps Engineer

Former Colleague

Contact

Let's Build Something

Have a system that needs architecting? A database that needs designing? Or a backend that needs scaling? Send me an email — let's make it happen.

Email Me Now
markohglobals@gmail.comgithub.com/Markohbug

I typically respond within 24 hours. For urgent inquiries, reach out via email directly.