Full Profile

Olayinka Olajide

Full-Stack Developer · Founder, Yhiskotech
📍 Tutoring & Mentorship · Computer Engineering Specialist· Lagos, Nigeria

About

I don’t just write code; I build practical digital solutions that solve real-world problems. As a Computer Engineering Specialists and the founder of Yhiskotech Digital Solution Hubs, I focus on engineering full-stack web systems that are fast, efficient, and built to scale. ​My approach to development is rooted in understanding the core architecture behind the UI. I specialize in engineering robust client-side applications, scalable APIs, and efficient backends using pure Vanilla JavaScript, Node.js, and MongoDB to ensure maximum performance and clean logic. A prime example of this is YHISKO_RECORDSa system built from the ground up for speed and architectural clarity, a WhatsApp-integrated business management system I engineered to help small business owners seamlessly track sales, handle profit/loss analytics, and manage customer debts in real time. ​Beyond software development, my engineering background spans IT network defense, hardware diagnostics, phone technician and digital branding. Whether I'm optimizing web performance for high-converting platforms or securing network infrastructure, I approach every project with strict technical precision. ​I build in public, continuously refine my craft, and always design with the end-user’s growth in mind. Let’s connect and build something impactful.

What I Do

💻

Full-Stack Development

End-to-end web and backend systems — frontend, APIs, databases, deployment.

🎬

Video Editing

Content edits for YouTube, ads and social media built to hold attention.

📱

Phone Repair & Hardware

Diagnostics and repair — screens, charging ports, batteries, boards.

🔐

IT & Security Specialist

Network setup, system hardening and practical security guidance.

🎓

Tutoring & Mentorship

Teaching programming and web development to beginners and students.

🎨

Graphic Design

Logos, social media graphics and brand visuals for businesses.

Certifications

Cisco CertifiedNetworking fundamentals
Cisco CertifiedJavaScript essentials
Cisco CertifiedCybersecurity basics

Projects

Yhisko Records

WhatsApp-based business management system for Nigerian SMBs — receipts, reports, expenses, debt tracking, staff management and AI-powered insights.

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Rardel Pastries and Events Business website

A real-world project to bring a pastries and events business online. The website allows customers to explore services, see offerings, and easily reach out to the business.

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Olayinka Social(Facebook clone)

built OlayinkaSocial, a Facebook-inspired social media UI, completely from scratch. The goal was to challenge myself to create a modern, responsive, and interactive frontend that feels like a real product with light mode and dark mode system. Through this project, I focused on: Writing clean and organized frontend code Creating layouts that work on both desktop and mobile Adding dynamic interactions to make the UI feel alive Thinking like a product-minded developer, not just a coder This project is a reflection of my passion for building interfaces that users enjoy and my commitment to learning through real projects.

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LinkedIn Style Post System

I built a LinkedIn-style post system with a strong focus on how people actually create and edit content. Instead of stopping at “type and post,” I paid attention to what happens when users change their minds, make mistakes, or want more control over how their posts look. The goal of this project was to create a forgiving and flexible posting experience that feels natural to use. What the project includes: A post editor with live preview, so users can see how their post will look before publishing Drag-and-drop uploads and arrangement for images and videos The ability to edit posts even after they are published, including rearranging media A built-in undo and redo system, allowing users to recover changes at any point Edit timestamps that show when a post was last modified Core social features such as likes, comments, replies, sharing, and deleting posts A LinkedIn-style comment layout instead of inline comments Emoji support while typing and editing posts What I took away from this project: Working on this helped me understand how much thought goes into features that feel “simple” to users. I learned how to manage complex UI states, handle edge cases, and build editing experiences that stay smooth even when users make frequent changes. Tools used: JavaScript · HTML · CSS · Drag-and-drop-logic . State management

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Let's work together

Available for freelance work, full-time roles, or collaborations. I reply fast.