Linux Administrator

Stratacent; Pune District; On-site; INR 1,800,000 - 3,200,000; Full time

Benefits offered by this job

Group Medical Insurance

Creche facility

Job summary

Stratacent in Pune is seeking an experienced Linux systems administrator to manage enterprise Linux estates, ensure security, and drive migrations to AWS using MGN, DataSync, and related tools.

You will implement infrastructure as code with Terraform or CloudFormation, automate with Ansible and Python, and collaborate across teams to support production workloads.

Qualifications

• 6+ years administering enterprise Linux in production environments.
• 2+ years hands-on with AWS services and migration tools.
• Experience with on-prem to AWS migrations and Linux performance tuning.
• Strong scripting and automation skills with IaC tooling.

Responsibilities

• Administer Linux (RHEL/CentOS/Ubuntu/Amazon Linux) in production.
• Plan and execute migrations to AWS using MGN, DataSync and related tools.
• Automate infrastructure with Terraform or CloudFormation and configure via Ansible.
• Implement security, IAM, encryption, and compliance controls.
• Build runbooks, monitor with CloudWatch, and support post-cutover operations.

Skills

Linux administration

Troubleshooting

Scripting (Bash, Python)

Change management / ITIL

Git-based workflows

Tools

AWS (EC2, VPC, EBS, EFS, S3, IAM, Route 53, ELB, CloudWatch, Systems Manager)

Terraform

CloudFormation

Ansible

Packer

VMware virtualization

Job description

Shift Time: 2PM-11PM IST / 3PM-12AM IST

Key responsibilities

Discovery and planning

• Inventory on-prem Linux servers (RHEL), applications, dependencies, storage and network flows using tools such as AWS Application Discovery Service or Migration Evaluator.
• Classify workloads by migration strategy (rehost, replatform, refactor, retire) and group them into migration waves.
• Define target-state designs: instance sizing, OS versions, EBS/EFS/FSx storage, VPC placement and security groups.
• Migrate servers with AWS Application Migration Service (MGN), plus rsync, LVM snapshots or image-based methods where needed.
• Move file shares and data using AWS DataSync, Snowball or S3 transfer as appropriate.
• Upgrade or re-platform legacy OS versions (e.g., RHEL ) during migration.
• Plan and run cutovers, including DNS changes, rollback plans and post-migration validation with application owners.
• Build, patch and maintain Linux on EC2 using AMIs, Systems Manager (Patch Manager, Session Manager, Run Command) and Auto Scaling.
• Manage users, sudo, SSH keys and directory integration (Active Directory / SSSD / AWS Managed Microsoft AD).
• Monitor health and performance with CloudWatch metrics, logs and alarms; tune kernel, memory, disk I/O and network settings.
• Set up backup and DR with AWS Backup, EBS snapshots and cross-region copies; test restores.

Automation and infrastructure as code

• Provision infrastructure with Terraform or CloudFormation.
• Automate configuration and builds with Ansible, Bash and Python; build golden AMIs with EC2 Image Builder or Packer.
• Contribute to CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins or CodePipeline) for infrastructure changes.

Security and compliance

• Apply CIS benchmarks and OS hardening; manage IAM roles and instance profiles on least privilege.
• Encrypt data at rest and in transit (KMS, TLS); manage secrets with Secrets Manager or Parameter Store.
• Support audits with evidence from CloudTrail, AWS Config, Security Hub and Inspector.

Hypercare and handover

• Provide post-cutover support, resolve incidents and drive root-cause analysis.
• Write runbooks, architecture diagrams and SOPs; hand over to steady-state operations teams.
• Track cost and right-size instances using Cost Explorer and Compute Optimizer.

Required qualifications

• 6+ years administering enterprise Linux (RHEL/CentOS, Ubuntu, Amazon Linux) in production.
• 2+ years hands-on with AWS: EC2, VPC, EBS, EFS, S3, IAM, Route 53, ELB, CloudWatch and Systems Manager.
• Completed at least one on-prem to AWS migration, including server rehost with AWS MGN or an equivalent tool.
• Strong troubleshooting across boot, kernel, filesystems (LVM, XFS, ext4), networking (TCP/IP, DNS, firewalld/iptables) and performance.
• Scripting in Bash and Python; configuration management with Ansible.
• Infrastructure as code with Terraform or CloudFormation.
• Working knowledge of VMware or other on-prem virtualization as a migration source.
• Experience with Git-based workflows and change management (ITIL, ServiceNow or Jira).

Preferred qualifications

• AWS Certified SysOps Administrator – Associate or Solutions Architect – Associate (Professional level a plus).
• Red Hat Certified System Administrator (RHCSA) or Engineer (RHCE).
• Familiarity with the AWS Migration Acceleration Program (MAP) and the Well-Architected Framework.
• Exposure to containers (Docker, Amazon ECS or EKS) and serverless services.
• Experience migrating databases or middleware hosted on Linux (Oracle, PostgreSQL, MySQL, Tomcat, JBoss, Apache, NGINX).
• Hybrid connectivity: Site-to-Site VPN, Direct Connect, Transit Gateway.
• Background in regulated environments (financial services, SOX, PCI DSS).
• Deliver runbooks and a clean handover to operations.

Employee Benefits:

• Group Medical Insurance
• Creche facility

Company Profile

Stratacent is an IT Consulting and Services firm, headquartered in Jersey City, NJ, with two global delivery centres in New York City area and New Delhi area plus offices in London, Canada and Pune, India.

We are a leading IT services provider focusing in Financial Services, Insurance, Healthcare and Life Sciences. We help our customers in their digital transformation journey and provides services/ solutions around Cloud Infrastructure, Data and Analytics, Automation, Application Development and ITSM. We have partnerships with SAS, Automation Anywhere, Snowflake, Azure, AWS and GCP.

URL - http://stratacent.com

Disclaimer

Stratacent India Private Limited is an equal opportunity employer and will not discriminate against any employee or applicant for employment on the basis of race, color, creed, religion, age, sex, national origin, ancestry, handicap, or any other factors.