Junior Site Reliability Engineer

Unified Infotech

Kolkata, West Bengal, IndiaFresher1h agovia LinkedIn

Key Responsibilities

  • Install, configure, manage and troubleshoot Linux servers and LAMP/LEMP environments.
  • Maintain and support web server technologies such as Apache and Nginx, along with MySQL databases and PHP-based applications.
  • Manage and monitor AWS services including EC2, S3, IAM, RDS and CloudWatch.
  • Monitor server health, application availability and infrastructure performance using tools such as Zabbix, Nagios, Grafana, Prometheus or similar platforms.
  • Troubleshoot server, application, database, networking and performance-related issues.
  • Analyze system and application logs and monitor CPU, memory, disk usage and other critical system metrics.
  • Respond to alerts, investigate incidents and take appropriate corrective actions to minimize downtime.
  • Support application deployments, backup and recovery processes, SSL certificate management and routine maintenance activities.
  • Perform basic security checks, access management and system updates in accordance with established procedures.
  • Maintain technical documentation, incident records and operational checklists.
  • Participate in on-call support and incident management activities as required.
  • Collaborate with development and other technical teams to resolve infrastructure and production issues.

Requirements & Tech Stack

  • Good knowledge of Linux system administration, preferably Ubuntu, CentOS or similar distributions.
  • Basic hands-on experience with AWS services such as EC2, S3, IAM, RDS and CloudWatch.
  • Working knowledge of Apache/Nginx web servers and MySQL databases.
  • Understanding of LAMP/LEMP stack environments and basic web application architecture.
  • Hands-on experience with at least one infrastructure or application monitoring tool such as Zabbix, Nagios, Grafana or Prometheus.
  • Basic knowledge of Bash/Shell scripting and Git.
  • Understanding of server logs, resource utilization, system performance and troubleshooting methodologies.
  • Basic understanding of networking concepts such as DNS, TCP/IP, ports, firewalls and connectivity troubleshooting.
  • Good analytical, problem-solving and communication skills.
  • Ability to work collaboratively and respond effectively to technical issues in a production environment.

Good to Have

  • Basic knowledge of Docker and containerization.
  • Familiarity with CI/CD pipelines and deployment workflows.
  • Exposure to Infrastructure as Code tools such as Terraform or configuration management tools such as Ansible.
  • Familiarity with Prometheus and Grafana dashboards, metrics and alerting.
  • Understanding of SSL/TLS certificates, security best practices and backup/recovery strategies.
  • Exposure to cloud infrastructure automation and performance optimization.

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