01 — Architecture
Strict Service/Controller Patterns
Reducing technical debt by refactoring legacy architectures. Implementing custom authorizers and secure, ownership-based access control to ensure systems scale safely.
About·Profile Overview
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A seasoned engineer blending analytical mathematics with robust software architecture.
I'm Tunji Hammed. With a BSc in Mathematics and over 5 years in the industry, I bring a strong analytical foundation to every line of code. From leading backend architecture at DoNotSell to deploying serverless FinTech solutions at Mango, I pride myself on a mature, goal-oriented approach to tackling complex challenges.
// system readout
The Engineer Object.
My approach to software development is rooted in clean code, scalable architecture, and strict type safety. I believe that data integrity is paramount, and good architecture should speak for itself.
- → Clean Architecture Advocate
- → Cross-Platform Specialist
- → Cloud Infrastructure Expert
tunji.ts
interface Engineer {
name: string;
role: 'Full-Stack Software Engineer';
location: 'Lagos, Nigeria';
education: 'BSc Mathematics';
architecture: string[];
backend: string[];
frontend: string[];
cloud: string[];
}
const tunji: Engineer = {
name: 'Hammed Olatunji Tayo',
role: 'Full-Stack Software Engineer',
location: 'Lagos, Nigeria',
education: 'BSc Mathematics, FUNAAB',
architecture: ['Clean Architecture', 'Service/Controller', 'Serverless'],
backend: ['Node.js', 'Express', 'Prisma', 'Joi', '.NET Core', 'C#'],
frontend: ['Flutter', 'Swift/iOS', 'React/Next.js', 'TailwindCSS'],
cloud: ['AWS Lambda', 'API Gateway', 'S3', 'Azure', 'CI/CD']
};
// Currently architecting scalable systems.// engineering philosophy
How I work.
02 — Data Integrity
Validation & Type Safety First
Engineering robust validation layers using Joi and TypeScript. Architecting complex relational models in PostgreSQL/Prisma to guarantee 100% data integrity for user content.
03 — Cross-Platform
Clean Architecture & Reactive State
Building modular apps using Riverpod for reactive state. Implementing offline persistence with Hive, and sophisticated real-time features via WebSockets and FCM.