Senior Linux Administrator

Overview

Senior Linux Administrator responsible for Linux administration, cloud infrastructure and automation, supporting highly available Linux environments across on-premises and cloud platforms.

What you'll do

• Automate the administration and end-to-end life-cycle management of RHEL servers, including provisioning, installation, software packaging, patching, planned and unplanned maintenance, service configuration and integration with the monitoring platform.
• Develop and continuously enhance tools, utilities, reports and frameworks to assist production support, operational processes and re-engineering efforts.
• Work closely with Cloud Engineering to enable development of end-to-end automated platforms.
• Develop new automations in Ansible or new Lambdas (self-healing and incident minimization).
• Contribute towards API gateway-related deliverables and proactively move towards server-less infrastructure.
• Contribute towards developing a holistic front-end for Core Infrastructure services for operational visibility and frequently needed information for app teams.
• Move towards AI/ML driven data visualization and self-healing, using Python.

What you'll need

• Degree in Computer Science, Engineering, or equivalent academic qualification.
• 3-6 years of System Administration experience supporting, engineering, developing and optimizing automation solutions on RHEL based on-premises or post-premise environments, currently working as L2/L3 team member in a Service Delivery model.
• Exposure to basic ITIL concepts: Incident, Change, Problem and Request management.
• Mandatory: 3+ years of expertise with RHEL Linux System Administration.
• Mandatory: Hands-on experience or knowledge of AWS EC2, S3, EBS, VPC, CloudTrail, Systems Manager, CloudFormation or Lambda.
• Mandatory: 2+ years of hands-on experience managing Ansible Tower or Ansible CLI and working with Modules as a configuration management tool.
• Certifications: RHCSA or RHCE (RHEL 9/10) and AWS Solutions Architect or AWS SysOps Administrator.
• Proficiency in handling system security vulnerabilities and OS configuration deviations to improve overall security posture.
• Proficiency with platform and infrastructure OS patching, releases, upgrades, migration and refresh.
• Experience handling NFS/CIFS issues on production or non-production environments.
• Experience handling operational issues supporting native AWS/Azure services.
• Detail oriented, self-starter, capable of working independently, with excellent written and verbal communication skills.
• Strong analytical, problem-solving and customer service abilities, with the ability to articulate technical information across organizational levels.
• Solid understanding of monitoring tools and techniques, focused on problem determination and prevention.
• Decent understanding of storage layout (SAN/NAS) and configuration best practices from a server/client perspective.

Nice to have

• Hands-on experience or knowledge in writing Shell (Bash) or Python scripts.
• Hands-on experience writing Terraform modules for AWS and Azure services, crafting IAM policies, and experience with policy-as-code tools such as checkov.
• Exposure to ServiceNow and JIRA.
• Experience with Git and Bitbucket for version control.
• Familiarity with Agile/Scrum methodologies and experience working in a sprint-driven support group.
• Exposure to server QA/validation, server build (design, delivery and asset management) and server decommissioning.
• Windows Active Directory and/or LDAP knowledge.
• Professional experience administering, configuring and supporting Red Hat Enterprise Linux 8.x, 9.x and 10.x.
• Expertise in writing software packaging and deploying into a fully automated environment.
• Hands-on or basic experience managing Amazon Linux (AMZ Linux) systems.
• Fundamental exposure to ITIL-governed IT environments, including change, incident (RCA) and problem management.
• Intermediate MS Excel skills: VLOOKUP, pivoting, formulas, macros, data comparison.
• Expertise in writing Python scripts and Ansible playbooks deployed into a fully automated environment.
• ITIL Foundation certification (desirable).

Details

• Location: Noida, Uttar Pradesh, India.
• Full-time role, timings 2:00p-10:30p.
• In-office: at least three (3) days per week, with flexibility to work from home two (2) days per week. Some roles may require additional in-office time.