Chris Joshua — Fullstack Developer & Technical Lead

Introduction

About me

Passionate and skilled Full Stack Developer with a strong foundation in both frontend and backend development. Proficient in modern web technologies and frameworks, with a focus on creating responsive and user-friendly web applications. Adept in problem-solving and cybersecurity practices, ensuring secure and efficient solutions. Currently serving as Technical Lead at Helparr AI Limited, overseeing cloud infrastructure, AI model training, and DevOps operations.

Languages

HTML, CSS, JavaScript, Vue.js/Nuxt.js, PHP/Laravel, React Native, Express.js, C#
Education

High School, undergoing Computer Science
Projects

Built 8+ projects across 5+ companies

Tools i use

Featured Role

Built at Helparr AI

As Technical Lead at Helparr AI Limited, I architected and shipped these core platform modules — from cloud infrastructure to AI-powered services.

Technical Lead · Jul 2025 – Present

01 / 06

helparr.com

Active Users

2,847

Artisans

1,205

Core Platform

Helparr AI Platform

The central hub connecting skilled artisans and service providers with customers across Africa. I led the full technical architecture — from the web platform to the backend API layer powering all Helparr services.

✓ End-to-end platform architecture & leadership
✓ Multi-service ecosystem (Pay, Sells, Save, Academy)
✓ Scalable API design serving thousands of users

Nuxt.js Laravel PostgreSQL Redis WebSocket

Visit helparr.com →

helparr.com/sells

🛒

CHECKOUT — ₦24,500

📱

Helparr Sells
Insert screenshot here

E-Commerce

Helparr Sells

A full-featured e-commerce module allowing artisans and sellers to list, manage, and sell products directly through the Helparr ecosystem. Integrated with Helparr Pay for seamless checkout.

✓ Product listing, cart & checkout flow
✓ Integrated with Helparr Pay for payments
✓ Seller dashboard & inventory management
✓ Real-time order tracking & notifications

Nuxt.js Express.js PostgreSQL Paystack

console.cloud.google.com

GCP — E2-standard-4

VM1

VM2

CPU

34%

RAM

6.2G

Disk

128G

Uptime: 99.97% · CentOS + CloudLinux

Infrastructure

Cloud Architecture

Designed and managed the entire cloud infrastructure on Google Cloud Platform — ensuring high availability, security, and cost efficiency for Helparr's growing user base across Africa.

✓ GCP E2-standard-4 with CentOS & CloudLinux
✓ Persistent disk volumes & load balancing
✓ WHM/cPanel & CloudWatch monitoring
✓ Auto-scaling & security hardening

Google Cloud CloudLinux Nginx WHM/cPanel

runpod.io / inference

Qlura Transformer — Fine-tuning

Accuracy

94.2%

Latency

120ms

Artificial Intelligence

AI Model Training & Deployment

Fine-tuned and deployed custom AI models powering Helparr's intelligent artisan recommendation system — trained on instruction-based datasets for contextual understanding.

✓ Fine-tuned with Luara & Qlura Transformers
✓ Advanced quantization for cost efficiency
✓ GPU-dedicated pods on RunPod.io
✓ Custom instruction datasets for accuracy

Qlura Luara RunPod.io Transformers

Mobile

Helparr Mobile App

Built the Helparr mobile application with React Native and Expo, featuring location-based artisan discovery with React Native Maps, push notifications, and seamless over-the-air updates.

✓ Location-based artisan discovery with maps
✓ Google Play Store & App Store deployment
✓ OTA updates via Expo for instant patches
✓ Optimized for African mobile networks

React Native RN Maps Expo OTA Express.js

terminal — bash

chris@helparr-prod:~$git log --oneline -5

a3f9c21 feat: add Expo OTA pipeline

b7d4e18 fix: SSH key rotation script

c2a6f90 chore: update nginx conf

d8b1c37 feat: Google Workspace setup

e5f2a84 fix: cPanel SSL renewal

chris@helparr-prod:~$ssh deploy@prod-server

Connected to helparr-prod (GCP e2-standard-4)

Last login: Sat Feb 07 2026 10:23:41

deploy@prod:~$systemctl status nginx

●nginx.service - active (running)

deploy@prod:~$

Operations

DevOps & Infrastructure

Established the full DevOps pipeline, team collaboration tools, and deployment workflows — from Git-based version control to Expo OTA updates for instant mobile patches.

✓ Git-based CI/CD deployment workflows
✓ SSH security hardening & key management
✓ Expo OTA for instant mobile updates
✓ Google Workspace under company domain

Git SSH Expo OTA Nginx G Workspace

Hi! I'm Christopher Joshua

Fullstack Developer & Technical Lead based in Nigeria

Introduction

About me

Languages

Education

Projects

Tools i use

What i offer

My services

Front-end Dev

Back-end Dev

Cloud & DevOps

Featured Role

Built at Helparr AI

Helparr AI Platform

Helparr Sells

Cloud Architecture

AI Model Training & Deployment

Helparr Mobile App

DevOps & Infrastructure

My portfolio

My latest work

Exquisite Escape

SyncU

Tech-Care

Jons World

Connect with me

Get in touch