Job Description

Req ID: 129378
Remote Position: Yes
Region: Asia
Country: India
State/Province: Chennai
City: Guindy, Chennai
General Overview
Functional Area: Information Technology (ITM)
Career Stream: IT Infrastructure (INFR)
Role: Specialist (SPE)
Job Title: Specialist, IT Infrastructure
Job Code: SPE-ITM-INFR
Job Level: Level 08
Direct/Indirect Indicator: Indirect
Summary
This role is for a dedicated Linux Systems Administrator responsible for the installation, configuration, and maintenance of Linux servers (RHEL, CentOS, Rocky) in physical and virtual environments.
Detailed Description
Performs tasks such as, but not limited to, the following:

• Install, configure, and manage Linux servers (RHEL, CentOS, Rocky) in both physical and virtualized environments.
• Perform regular patching and upgrades, ensuring security and compliance with organizational standards.
• Implement and maintain system hardening policies (based on CIS/NIST benchmarks).
• Monitor system performance, troubleshoot issues, and resolve incidents in coordination with other teams.
• Manage user accounts, permissions, and security policies.
• Work with Ansible automation platform to streamline deployments and configurations.
• Participate in backup and recovery planning in collaboration with the Backup team.
• Support middleware, application, and database teams with Linux-related requirements.
• Prepare documentation, SOPs, and audit reports as required.
• Participate in on-call rotation for Linux operations.

Knowledge/Skills/Competencies

• Strong knowledge of RHEL or equivalent enterprise Linux distributions.
• Experience with configuration management and automation (preferably Ansible).
• Familiarity with virtualization platforms (VMware and Hyper-V ).
• Good knowledge of shell scripting (Bash, Python).
• Understanding of networking fundamentals (TCP/IP, DNS, DHCP, NFS, LDAP).
• Exposure to ITSM tools (e.g., ServiceNow) and change management processes.
• Strong troubleshooting and problem-solving skills.
• Excellent communication and teamwork abilities.

Physical Demands
Duties of this position are performed in a normal office environment.
Duties may require extended periods of sitting and sustained visual concentration on a computer monitor or on numbers and other detailed data. Repetitive manual movements (e.g., data entry, using a computer mouse, using a calculator, etc.) are frequently required.
Typical Experience

• 5 - 6 years of hands-on Linux system administration experience.

Typical Education
Bachelor's degree in Computer Science, Information Technology, or related field.
Educational Requirements may vary by Geography
Notes
This job description is not intended to be an exhaustive list of all duties and responsibilities of the position. Employees are held accountable for all duties of the job. Job duties and the % of time identified for any function are subject to change at any time.
Celestica is an equal opportunity employer. All qualified applicants will receive consideration for employment and will not be discriminated against on any protected status (including race, religion, national origin, gender, sexual orientation, age, marital status, veteran or disability status or other characteristics protected by law).
At Celestica we are committed to fostering an inclusive, accessible environment, where all employees and customers feel valued, respected and supported. Special arrangements can be made for candidates who need it throughout the hiring process. Please indicate your needs and we will work with you to meet them.
COMPANY OVERVIEW:
Celestica (NYSE, TSX: CLS) enables the world's best brands. Through our recognized customer-centric approach, we partner with leading companies in Aerospace and Defense, Communications, Enterprise, HealthTech, Industrial, Capital Equipment and Energy to deliver solutions for their most complex challenges. As a leader in design, manufacturing, hardware platform and supply chain solutions, Celestica brings global expertise and insight at every stage of product development - from drawing board to full-scale production and after-market services for products from advanced medical devices, to highly engineered aviation systems, to next-generation hardware platform solutions for the Cloud. Headquartered in Toronto, with talented teams spanning 40+ locations in 13 countries across the Americas, Europe and Asia, we imagine, develop and deliver a better future with our customers.
Celestica would like to thank all applicants, however, only qualified applicants will be contacted.
Celestica does not accept unsolicited resumes from recruitment agencies or fee based recruitment services.

Skills Required