Santhosh raja

I am a hybrid software engineer and systems administrator specializing in end-to-end web application development and secure, scalable IT infrastructure. I bridge the gap between building dynamic, user-focused web platforms and engineering the robust backend environments required to host them reliably.

Web Application Development: I build comprehensive, full-stack applications—ranging from e-commerce platforms to multi-tenant management portals and automated approval systems. My frontend architectures leverage React, Next.js, and modular CSS for polished, responsive user interfaces, while my backend services are powered by Node.js, Express, and Python. I specialize in designing high-throughput data pipelines using robust databases like ClickHouse, PostgreSQL, and MongoDB.

Linux Administration & Infrastructure: Beyond writing code, I architect and manage the deployment environments. I have extensive experience administering Linux server distributions (Ubuntu, RHEL, AlmaLinux, Rocky Linux) and deploying across multi-cloud environments including AWS, GCP, Azure, and bare-metal servers. My infrastructure services include managing Nginx reverse proxies, configuring systemd daemons and PM2 process managers, and automating workflows.

Security & Monitoring: I bring a security-first mindset to all my deployments. I implement strict role-based access controls, AES-256 encryption for sensitive records, and automated database backup pipelines. I also have deep expertise in configuring network security, firewalls, and active monitoring platforms like Wazuh and Zabbix to ensure maximum uptime and system integrity.