Hello, I'm

Daniel Henry. I build systems that scale.

Full Stack WebApplication/Software Engineer and IT Professional specializing in Information system infrastructure (Server Engineering and Cloud Administration). Currently the backend engineer for tands Data services (VTU system) and founder of sys14-Digital Nigeria

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Explore My Work Let's Collaborate
Daniel Henry Gandu
daniel@portfolio: ~
daniel@portfolio:~$ ./run_digital_rep.sh
Loading AI Representative... [OK]

Greetings. I am the digital representative of Daniel Henry Gandu.
My role is to guide you through Daniel's technical journey. He is a master of bridging the gap between software development and IT operations.

Whether you need a dynamic React frontend, a powerful Laravel API, or a resilient Linux Server architecture, Daniel possesses the engineering depth to deliver excellence.

Feel free to explore his expertise below. daniel@portfolio:~$ _
Flagship Product

See what we are building with T&S Data

T&S Data is a high-performance, data-only VTU platform built to optimize connectivity transactions. Designed with instant point-to-cash conversions, automated settlements, scheduled subscription processing, and secure group sharing, it is a showcase of full-stack engineering excellence.

Point Conversion

Earn points on purchases and convert them directly to wallet balance for seamless transactions.

Schedule Data Purchase

Set up recurring subscription automation so your devices never lose network connectivity.

Data Pool sharing

Pool data packages together and share allocations dynamically among multiple devices and users.

Instant Funding

Dedicated virtual accounts linked to settlement providers guarantee instant wallet top-ups.

Visit tands.com.ng Let's Collaborate
T&S Data Dashboard Showcase
Blockchain Project

Building Decentralized Feedback with NEXT.ai

NEXT.ai leverages the Cardano blockchain to provide a transparent, immutable feedback system for platform users. The solution records user responses, ratings, and comments on-chain, ensuring trustless verification and rewarding contributors with native tokens.

On-Chain Feedback

Store user feedback securely on Cardano, guaranteeing immutability and auditability.

Token Incentives

Reward participants with native tokens for valuable contributions.

Analytics Dashboard

Real-time insights into feedback trends and sentiment analysis.

View Code Live Platform
NEXT.ai Dashboard Showcase

Technical Expertise

Laravel & PHP

Architecting secure, scalable APIs and enterprise backend systems with advanced database optimization and queue management.

React & TypeScript

Building highly interactive, type-safe, and performant user interfaces that deliver exceptional user experiences.

Linux Administration

Expert-level server provisioning, security hardening, bash scripting, and performance tuning for high-availability environments.

Enterprise Networking

Designing robust network architectures, implementing firewalls, VPNs, and ensuring secure data transmission protocols.

API Engineering

Designing RESTful and GraphQL APIs with comprehensive documentation, versioning, and strict authentication flows.

Cloud Deployments

Deploying scalable applications via Docker, managing CI/CD pipelines, and utilizing AWS/DigitalOcean infrastructure.

Technical Consultation

Providing expert guidance on architecture, best practices, and technology selection to accelerate project success.

Cyber Security

Implementing robust security measures, threat modeling, and vulnerability mitigation to protect systems and data.

Featured Projects

Blockchain & AI Intelligence

NEXT.ai Platform

A decentralized intelligence system combining AI-driven surveys with blockchain validation. Implemented optimized Firestore security rules and automated real-time data deduplication mechanisms.

React Node.js Blockchain Firestore
View Code Case Study
Telecom & billing

tands VTU Portal

A high-performance Virtual Top-Up platform enabling instant mobile airtime, data subscription, and utility bill processing with integrated telecommunications carrier APIs.

Laravel PHP RESTful API MySQL
View Code Case Study
Enterprise Transaction Engine

s3c VTU Engine

A secure, high-throughput telecommunication billing engine handling high-volume transaction routing, automated retries, and real-time transaction ledger accounting.

Laravel Redis MySQL Queue Systems
View Code Case Study
Non-Profit Platform

ucsi NGO Portal

A web portal and admin management system for a non-governmental organization, facilitating campaign tracking, donor communications, and public survey distributions.

React TypeScript TailwindCSS Express
View Code Case Study
Agricultural ERP

Kuyash Farms Accounts

A financial accounting and inventory management system designed for farm management, tracking product sales logbooks, crop yields, and double-entry transaction ledgers.

Laravel PostgreSQL Database design Accounting API
View Code Case Study
Laravel API & Seeding

Sarkin Mota Autos

A premium vehicle inventory management system featuring normalized, high-performance database seeders and human-readable brand schemas designed for high-concurrency requests.

Laravel PHP MySQL Database Design
View Code Case Study
Full Stack Booking Stack

UniStay Real-time Hub

A student housing booking dashboard integrated with Firestore real-time financial tracking, custom security policies, automated query structures, and cron billing tasks.

React Firebase Firestore Node.js
View Code Case Study
Telecom Reward Integration

SP Sub Referral API

A secure API microservice for telecom subscriptions, featuring encrypted referral rewards, alphanumeric hash engines, and fully documented OpenAPI/Swagger specifications.

Laravel REST API Swagger Encryption
View Code Case Study

Engineering Philosophy

I believe that great software isn't just about writing code; it's about solving complex business problems through reliable, scalable, and maintainable systems.

My unique background spanning both Software Engineering and IT Infrastructure allows me to see the full picture. I don't just build the application—I understand how it behaves over the network, how it utilizes server resources, and how to secure it against vulnerabilities.

Get in touch

1. Scalability First

Designing architectures that handle growth elegantly without requiring complete rewrites.

2. Security by Design

Implementing rigorous security measures from the initial commit to the final cloud deployment.

3. Clean & Maintainable

Writing self-documenting, type-safe code that teams love to collaborate on.

Core Technologies

Backend & DBs

Laravel PHP MySQL PostgreSQL RESTful APIs GraphQL Redis

Frontend & UI

React.js TypeScript JavaScript HTML5 / CSS3 TailwindCSS Responsive Design

DevOps & Cloud

Linux (Ubuntu/CentOS) Docker AWS DigitalOcean CI/CD Pipelines Bash Scripting Nginx / Apache

Networks & Security

Cisco Routing & Switching pfSense / Firewalls VPNs / IPsec Network Security SSL / TLS Certs Vulnerability Mitigation

Professional Journey

2024 - PRESENT

Full Stack Software Engineer

Techsuite Engineering

Architecting robust PHP/Laravel APIs, building interactive React applications, and integrating complex payment and database solutions while maintaining clean code guidelines.

2022 - 2024

Linux & Cloud Administrator

Infrastructure Solutions

Securing and provisioning cloud servers, configuring automated backup cron jobs, administering containerized services via Docker, and writing custom Shell scripts for system automation.

2020 - 2022

Enterprise Network Engineer

Global IT Networks

Designing, deploying, and supporting enterprise networking topologies, configuring pfSense firewalls, managed switches, VPN gateways, and enforcing strict access control lists.

Professional Credentials

Cisco CCNA

Cisco Systems

AWS Certified SysOps

Amazon Web Services

RHCSA (Linux Admin)

Red Hat Enterprise

Cyber Security Specialist

CompTIA Security+

Latest Articles

Insights on technology, backend architecture, and blockchain systems.

View All Articles

Get in Touch

Have a project in mind, need technical consultation, or looking to add a versatile engineer to your team? Reach out directly or send a message.

Email
ganduhenry19@gmail.com
WhatsApp / Phone
+234 806 862 2951
Location
Kaduna, Nigeria (GMT+1)

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