Karvendhan Nagaraj

Software Development Lead with 7+ years of experience designing, developing, and scaling enterprise web applications, backend systems, and platform infrastructure. I specialize in PHP (Laravel, CodeIgniter), Node.js, MySQL/MariaDB, system architecture, performance optimization, and technical leadership. Currently leading Agile development teams while driving modernization initiatives, establishing engineering standards, and delivering scalable, high-performance solutions. My responsibilities span application development, infrastructure management, DevOps practices, security hardening, and performance engineering. Key Achievements: ✔ Led modernization of legacy applications, improving maintainability and development efficiency. ✔ Built and managed production-grade VPS infrastructure supporting business-critical applications. ✔ Implemented self-hosted Grafana and SonarQube Community Edition, reducing licensing costs while improving monitoring and code quality governance. ✔ Established CI/CD deployment pipelines, improving release consistency and reducing deployment effort. ✔ Optimized MySQL/MariaDB databases through indexing strategies, query tuning, and performance analysis. ✔ Tuned Nginx, Apache, application servers, and databases to support growing workloads and improve system stability. ✔ Identified and remediated security vulnerabilities through vulnerability assessments, configuration hardening, and best-practice implementation. ✔ Standardized Git workflows, release processes, and development practices across teams. Core Expertise • Backend Architecture & System Design • PHP (Laravel, CodeIgniter) & Node.js • REST APIs & Secure Integrations • MySQL/MariaDB Performance Optimization • Linux & Windows Server Administration • CI/CD & Release Automation • Grafana, Prometheus & Observability • SonarQube & Code Quality Governance • Nginx & Apache Performance Tuning • Security Hardening & Vulnerability Remediation • Technical Leadership & Team Mentoring Throughout my career, I have contributed to e-commerce platforms, enterprise applications, and high-volume backend systems with a strong focus on scalability, reliability, security, and operational excellence. Currently expanding my expertise in AI-powered application integration, intelligent automation, and modern software architecture. Let's connect and discuss Backend Engineering, Platform Engineering, DevOps, System Architecture, and AI Integration.