Abraham S.

I maintain multiple live production systems used by universities, publishers, and e-commerce customers. My work goes beyond writing code: I take over existing applications, fix difficult problems, upgrade PHP and frameworks, manage Linux servers, and deploy changes safely without losing important data. I'm a Senior Laravel/PHP Engineer with 5+ years of experience, specializing in Laravel backend development, Open Journal Systems (OJS), production server maintenance, cloud deployments, and AI integration. I work with existing systems that have real users, real data, and real business requirements. My goal is to make them stable, secure, maintainable, and ready for continued growth. OJS DEVELOPMENT, MIGRATION & HOSTING — 5+ YEARS OJS is one of my core specialties and an established source of paid client work. I help academic publishers migrate, upgrade, secure, and maintain their journal platforms. My services include: OJS installation, configuration, and multi-journal hosting Full journal migrations while preserving articles, metadata, back issues, DOI records, and existing URLs wherever technically possible OJS upgrades, including version 3.4 to 3.5 Custom themes, templates, plugins, and journal functionality DOI configuration, metadata quality, Google Scholar indexing, and search engine troubleshooting PHP upgrades, server migrations, SSL, email configuration, backups, and security hardening AI-powered journal chatbots and workflow integrations I've worked with journals and publishers including the Iraqi Journal of Medical Sciences, Journal of Taiji Science, Meridian Scholarly Review, Dagu Journal, ERJSSH, and Tadabbur Magazine. I also handle the infrastructure behind these platforms, including Linux VPS environments, Nginx, PHP-FPM, databases, DNS, SSL, and Cloudflare. My approach is to preserve the journal's existing scholarly content and identifiers while improving the platform underneath it. I also help publishers address technical and indexing issues as they prepare for future indexing and evaluation requirements. LARAVEL & PHP BACKEND DEVELOPMENT I have 5+ years of experience building and maintaining production PHP/Laravel applications, including working on existing codebases, debugging backend issues, designing REST APIs, optimizing database queries, and implementing new features. At Jimma University's ICT Development Office, I worked across institutional platforms supporting thousands of students and employees: Student Information System: Approximately 80,000 student records and 5,000+ active students. Human Resource Management System: 10,000+ employee records and approximately 4,000 active employees. Exit Examination System: Supporting more than 2,000 students. Other institutional applications: Student registration, records management, research management, project management, LMS, and hospital systems. My responsibilities covered requirements analysis, Laravel development, database operations, deployment, maintenance, and user training. I understand the importance of making changes to established applications without breaking existing workflows, permissions, integrations, or production data. LIVE E-COMMERCE & PRODUCTION SYSTEMS I lead technical development at GojoTech, where I work on GojoShop.et, a live multi-vendor commerce and logistics platform. The platform has processed more than 21,000 orders and supports hundreds of stores and thousands of products. My work includes: Laravel backend development and REST APIs MySQL database management and optimization Redis and Meilisearch integration Telegram bot and Mini App ordering AI-powered workflows for product processing and operational intelligence Docker, AWS EC2, CloudPanel, Nginx, SSL, and Cloudflare Production troubleshooting, backups, deployment, and ongoing maintenance I continue to maintain and improve live systems rather than working exclusively on new projects or prototypes. LINUX, DOCKER & CLOUD DEPLOYMENT I work across application development and infrastructure, which allows me to investigate issues from the application layer down to the server. My practical experience includes: Linux server administration and SSH-based troubleshooting Docker and containerized application environments AWS EC2 and VPS deployments Nginx, PHP-FPM, SSL certificates, DNS, and environment configuration Cloudflare DNS, WAF, and security configuration PHP version upgrades and dependency compatibility Database backups, restoration, and production issue diagnosis Git-based development and release workflows I can investigate unfamiliar applications, inspect logs and configurations, identify the source of a problem, implement a fix, and help deliver it safely to production. AI-ASSISTED DEVELOPMENT & INTEGRATION I use Claude Code, Cursor, GitHub Copilot, and ChatGPT in my daily development workflow. I apply AI to accelerate implementation, debugging, refactoring, test development, documentation, and data processing.