Job
Description
Role & responsibilities DevOps engineer with hands-on experience in architecting, deploying, and managing secure and high-performance infrastructure for PHP-based applications. Operating Systems : Ubuntu, AlmaLinux, CentOS Web Servers : Apache, Nginx Databases : MySQL, MariaDB PHP Versions : 5.x to 8.x Monitoring & ; Observability: AWS CloudWatch, New Relic Development Environments : Local PHP stack configuration, EC2 instance provisioning and configuration, load balancer (ELB) setup for high availability and traffic distribution, Version Control: Git setup and handling (branching, merging, conflict resolution, hook scripting) Log Debugging & Performance Tuning Proficient in analyzing system, web server, and application logs to identify critical errors, bottlenecks, or misconfigurations. Experienced in isolating slow or failed API/web requests using tools like AWS CloudWatch Logs, New Relic APM, and ELK Stack. Investigates key performance metrics such as Time to First Byte (TTFB), page load time, database query latency, and PHP execution time. Identifies and fixes issues related to high TTFB by tuning PHP-FPM, optimizing Apache/Nginx configurations, and managing concurrent requests. Implements and audits caching strategies at various layers OPcache for PHP, Redis/Memcached for object/session caching, and Varnish for full-page caching. Monitors and reduces repeated queries, long query execution, and large payload responses by analyzing SQL logs and query plans. Performs root cause analysis across infrastructure and application layers to ensure stability and reduce downtime. Follows a structured debugging process to replicate and resolve speed-related issues under real load conditions. Preferred candidate profile Core Competencies Infrastructure Design & Deployment: Expertise in designing and deploying scalable infrastructure for PHP applications using the LAMP stack (Linux, Apache, MySQL, PHP). Hands-on experience in provisioning EC2 instances, configuring web servers (Apache, Nginx), and setting up load balancers (ELB) for high availability. CI/CD Implementation : Skilled in implementing and managing automated CI/CD pipelines using tools like GitLab CI, Jenkins, and GitHub Actions to streamline application deployment and updates. Caching : Extensive knowledge in optimizing application performance through caching techniques, including: Redis/Memcached for session and object caching. Varnish for full-page HTTP caching . OPcache for PHP script caching to improve response times and reduce server load. CDN Integration: Proficient in integrating Cloudflare and AWS CloudFront for Content Delivery Network (CDN) to enhance global content distribution, reduce latency, and improve site performance. Session Management: Expertise in configuring centralized session management using Redis in load-balanced environments to ensure session persistence across multiple servers. Log Aggregation & Monitoring: Strong experience in configuring log aggregation, monitoring, and alerting systems using AWS CloudWatch and New Relic, ensuring proactive issue detection and real-time response to performance bottlenecks or errors. DNS Configurations: Experienced in managing DNS records (A, CNAME, MX, TXT) using platforms like AWS Route 53 and Cloudflare, ensuring high availability, Configured DNS failover strategies to ensure high availability and minimize downtime, utilizing features like latency-based routing and geo-routing. WAF Management: Proficient in configuring AWS WAF, Cloudflare WAF, and ModSecurity to safeguard applications from security vulnerabilities like SQL injection, XSS, and CSRF. Ability to create custom WAF rules, monitor traffic, and optimize security without impacting performance.
