System Administrator / Infrastructure Engineer

Must Have Experience & Skills

- Bachelors degree in science.
- Strong hands-on experience with Linux system administration:
- Strong command-line proficiency, including navigation, file editing/manipulation, process management, and troubleshooting.
- Good understanding of Linux filesystem layout.
- User, group, permissions, and file access management.
- Software installation, patching, and upgrades using package management tools such as yum/rpm and apt/dpkg.
- Service management, log analysis, process/resource troubleshooting, and system configuration.
- Monitoring system performance, availability, and resource utilization.
- Practical experience with Bash scripting and automation of routine system administration tasks.
- Practical experience with Git and Git-based development workflows:
- Working with repositories, branches, commits, merges, pull/merge requests, and resolving conflicts.
- Ability to make changes to infrastructure and configuration code maintained in Git repositories.
- Hands-on experience with Infrastructure as Code (IaC), preferably Terraform:
- Writing and modifying Terraform configurations.
- Managing infrastructure through Terraform plans and applies.
- Understanding Terraform state, variables, modules, and reusable configurations.
- Troubleshooting Terraform/IaC deployment issues.
- Practical experience with cloud infrastructure, preferably Amazon Web Services (AWS).
- Hands-on experience with services such as EC2, EBS, S3, VPC, IAM, CloudWatch, and related AWS services.
- Ability to provision, configure, troubleshoot, and maintain cloud-based environments.
- Working knowledge of CI/CD concepts and pipelines:
- Understanding automated build, deployment, and release processes.




- Ability to troubleshoot pipeline failures and work with application/infrastructure deployment workflows.
- Experience working with CI/CD tools such as Jenkins, GitLab CI, GitHub Actions, AWS CodePipeline, or similar is desirable.
- Experience with environment provisioning and configuration:
- Ability to build and configure development, QA, staging, and production environments.
- Understanding of environment consistency, configuration management, deployment, and change management.
- Ability to automate setting builds and repetitive infrastructure tasks.
- General knowledge of networking concepts and protocols and the ability to troubleshoot connectivity and application/network issues.
- Ability to diagnose and troubleshoot software, operating system, infrastructure, and hardware-related issues.
- Ability to communicate effectively in English (read/write/speak) to support US-based teams.
- Ability to collaborate with fellow employees and work odd hours / on-call schedules as required.
- Highly motivated and driven, with the ability to work independently, take ownership, and demonstrate strong work ethics.

Good to Have Experience & Skills

- Practical experience with an interpreted/scripting language such as Python, Ruby, or Perl.
- Experience with configuration management and automation tools, such as Ansible, Puppet, Chef, etc.
- Practical experience with DBMS technologies such as MySQL, PostgreSQL, etc., including familiarity with their respective client tools.
- Working knowledge of Windows desktops to troubleshoot tools/applications such as Eclipse, SQLyog, etc.
- Experience with containers and container orchestration, such as Docker and Kubernetes.
- Knowledge of monitoring, logging, and observability platforms.
- Knowledge of IT service management / ticketing systems for incident tracking, change management, and operational record keeping.

📌 System Administrator / Infrastructure Engineer (Kolkata)
🏢 Applied Research Works India
📍 Kolkata