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I am a results-driven backend developer specializing in PHP, Laravel, Yii2, and RESTful API engineering. I enjoy designing scalable systems, secure authentication workflows, multi-tenant architectures, payment integrations, and real-time messaging solutions. My experience includes building platforms for trading, e-commerce, healthcare, digital signage, and live streaming, with a strong focus on maintainable architecture and reliable performance. I am comfortable working across application development, databases, containerized deployments, background processing, and third-party integrations. I have built vendor management APIs, Paystack payment flows, WebSocket-powered features, and asynchronous notification systems, while collaborating effectively in remote teams. I bring a friendly, analytical, and quality-focused approach to solving technical problems and continuously expanding my skills.…I am a results-driven backend developer specializing in PHP, Laravel, Yii2, and RESTful API engineering. I enjoy designing scalable systems, secure authentication workflows, multi-tenant architectures, payment integrations, and real-time messaging solutions. My experience includes building platforms for trading, e-commerce, healthcare, digital signage, and live streaming, with a strong focus on maintainable architecture and reliable performance. I am comfortable working across application development, databases, containerized deployments, background processing, and third-party integrations. I have built vendor management APIs, Paystack payment flows, WebSocket-powered features, and asynchronous notification systems, while collaborating effectively in remote teams. I bring a friendly, analytical, and quality-focused approach to solving technical problems and continuously expanding my skills.

Henry-Damian Melchizedek Chinomnso

Back-End Developer, Developer, Programmer, +3

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I am a results-driven backend developer specializing in PHP, Laravel, Yii2, and RESTful API engineering. I enjoy designing scalable systems, secure authentication workflows, multi-tenant architectures, payment integrations, and real-time messaging solutions. My experience includes building platforms for trading, e-commerce, healthcare, digital signage, and live streaming, with a strong focus on maintainable architecture and reliable performance. I am comfortable working across application development, databases, containerized deployments, background processing, and third-party integrations. I have built vendor management APIs, Paystack payment flows, WebSocket-powered features, and asynchronous notification systems, while collaborating effectively in remote teams. I bring a friendly, analytical, and quality-focused approach to solving technical problems and continuously expanding my skills.…I am a results-driven backend developer specializing in PHP, Laravel, Yii2, and RESTful API engineering. I enjoy designing scalable systems, secure authentication workflows, multi-tenant architectures, payment integrations, and real-time messaging solutions. My experience includes building platforms for trading, e-commerce, healthcare, digital signage, and live streaming, with a strong focus on maintainable architecture and reliable performance. I am comfortable working across application development, databases, containerized deployments, background processing, and third-party integrations. I have built vendor management APIs, Paystack payment flows, WebSocket-powered features, and asynchronous notification systems, while collaborating effectively in remote teams. I bring a friendly, analytical, and quality-focused approach to solving technical problems and continuously expanding my skills.

Available to hire

I am a results-driven backend developer specializing in PHP, Laravel, Yii2, and RESTful API engineering. I enjoy designing scalable systems, secure authentication workflows, multi-tenant architectures, payment integrations, and real-time messaging solutions. My experience includes building platforms for trading, e-commerce, healthcare, digital signage, and live streaming, with a strong focus on maintainable architecture and reliable performance.

I am comfortable working across application development, databases, containerized deployments, background processing, and third-party integrations. I have built vendor management APIs, Paystack payment flows, WebSocket-powered features, and asynchronous notification systems, while collaborating effectively in remote teams. I bring a friendly, analytical, and quality-focused approach to solving technical problems and continuously expanding my skills.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

German

Intermediate

Work Experience

Backend Developer at Visibility Logic

May 1, 2026 - June 1, 2026

Contributed to backend development of a white-label, multi-tenant SaaS trading platform using Laravel 11, Sanctum, Redis, Pusher, and Reverb. Worked on isolated per-tenant data environments using global-scope tenancy architecture. Resolved an admin user deletion 404 bug caused by route model binding conflicts with the BelongsToCompany global scope by implementing manual scope-free lookup and cross-tenant 403 protection. Also built an authenticated asset categories endpoint using MySQL aggregation queries to support dynamic trading interface navigation.

Backend Developer (PHP / Yii2) at Kofacart Inc.

April 1, 2026 - June 1, 2026

Architected and delivered the PHP/Yii2 backend for a multi-vendor food and fashion marketplace serving Canadian and Nigerian markets. Configured a Docker environment with Apache, MariaDB, Redis, Memcached, cron scheduling, and Traefik. Built 13 vendor REST API controllers covering product variants, add-ons, coupons, orders, bank details, withdrawals, transactions, subscriptions, and store management. Engineered asynchronous SMS and WhatsApp order notifications using Termii API and a cron-processed database queue.

Backend Developer at MooreAdvice

October 1, 2025 - January 1, 2026

Contributed to a multi-tenant digital signage and content management platform for enterprise clients across multiple regions. Designed and implemented a secure password reset and OTP authentication system using pure PHP and SMTP email integration, handling more than 200 verification requests weekly. Built dashboard functionality for user activity tracking, website analytics monitoring, and system reporting to improve administrative visibility and operational decision-making.

Web Developer at GN128 SOLUTIONS

August 1, 2025 - October 1, 2025

Developed and integrated RESTful APIs for a healthcare management system covering patient records, appointment scheduling, and medical data workflows. Collaborated with frontend developers to connect HTML, CSS, and JavaScript interfaces with backend endpoints. Deployed the application on cPanel, managed domains and SSL certificates, and optimized the MySQL database.

Laravel Developer at BeeYarn

June 3, 2025 - July 12, 2025

Designed and developed RESTful APIs for a social media startup app using Laravel, following the MVC architectural pattern to ensure clean code organization and scalability. Implemented JWT authentication for secure user login, token generation, and session management. Integrated Firebase services for real-time data features and push notifications. Integrated and tested Paystack for secure payment processing, including transactions and verification flows. Ensured high code quality through unit testing and clear documentation. Participated in weekly sprint meetings, providing updates and resolving blockers. Architected event-driven notification system using Laravel events, listeners, and queues to handle user interactions, email notifications, and background processing asynchronously. Led backend API development, contributing approximately 90% of the production-ready codebase used during the platform's initial launch.

Backend Developer at BEEYARN

March 1, 2025 - April 1, 2026

Architected and delivered a live streaming system integrating the 100ms.live SDK and Pusher for low-latency communication. Implemented host and co-host roles, real-time chat, viewer tracking, and automated yarn-point rewards. Developed more than 30 RESTful API endpoints and integrated Paystack transaction processing, verification, webhooks, and reconciliation. Applied service-oriented architecture with dedicated service classes, improving maintainability across more than 15 endpoints.

Backend Developer Intern at Mactavis Digital

December 25, 2024 - July 12, 2025

Followed a structured learning plan to develop backend skills using PHP and Laravel. Participated in weekly progress meetings to present updates and discuss technical challenges. Built mini backend projects while collaborating with frontend developers to integrate APIs. Completed online training courses in PHP, Laravel, and RESTful API development. Developed understanding of MVC architecture, Service Repository Pattern, routing, controllers, and database management using MySQL.