IT Infrastructure Specialist (Linux)

Colt Technology Services; Bengaluru; Hybrid; INR 1,500,000 - 2,500,000; Full time

Benefits offered by this job

Flexible working hours

Extensive induction program

Opportunities for further development

Global Family Leave Policy

Employee Assistance Program

Internal inclusion & diversity networks

Job summary

Colt Technology Services is looking for an IT Infrastructure Specialist in Bengaluru to take on the role of a Linux expert. You will design and optimize a large-scale Linux infrastructure, ensuring security and high availability while collaborating with multiple teams.

Ideal candidates have over five years of enterprise Linux experience and strong skills in automation with Ansible and scripting. This position offers flexible working hours, mentoring, and further development opportunities.

Qualifications

• 5+ years’ experience in enterprise Linux administration.
• Strong expertise in Red Hat, CentOS, and Ubuntu.
• Experience with automation at scale and scripting (Bash, Python).

Responsibilities

• Act as the technical authority for Linux platforms.
• Drive automation-first operations using Ansible.
• Ensure security compliance and embed security principles.

Skills

Linux administration

Red Hat

CentOS

Ubuntu

Ansible automation

DNS and LDAP

Scripting (Bash, Python)

High availability solutions

Disaster recovery solutions

Problem-solving skills

Job description

IT Infrastructure Specialist

Location: Gurgaon/Bangalore, India. Job Level: S2 Core. Employment Type: Full-time Employee.

Why We Need This Role

We are seeking a Linux Specialist to act as a technical subject matter expert within the Linux Engineering team. This role is responsible for the design, implementation, support, and optimisation of a large‑scale Linux estate supporting critical business applications. You will work across approximately 4000 Linux systems, driving automation, standardisation, security, and reliability, while contributing to platform strategy and continuous improvement. The role requires deep technical expertise, strong troubleshooting capability, and effective cross‑team collaboration.

What You Will Do

• Platform Engineering & Ownership
• Act as the technical authority for Linux platforms (RHEL, CentOS, Ubuntu)
• Design and deliver secure, scalable, and highly available infrastructure solutions
• Contribute to and execute the Linux platform roadmap
• Automation & Efficiency: Drive automation‑first operations using Ansible and scripting; implement Infrastructure as Code (IaC) and configuration standards; deliver scalable efficiency improvements across the estate
• Operations & Reliability: Lead complex incident resolution and root cause analysis; manage patching, configuration, and lifecycle activities; improve performance, observability, and system resilience
• Security & Compliance: Apply CIS hardening and ISO27001‑aligned controls; embed secure‑by‑design principles into engineering; support audits and maintain compliance artefacts
• Core Services (DNS & Identity): Support and enhance DNS and LDAP services (Red Hat / Oracle); contribute to enterprise identity integration and authentication
• Collaboration & Documentation: Produce high‑quality technical documentation and runbooks; work closely with architecture, security, and application teams; provide technical leadership and mentoring
• Operational Support: Participate in an on‑call rota for priority incident support

What We’re Looking For

Required Skills & Experience

• 5+ years’ experience in enterprise Linux administration
• Strong expertise in Red Hat, CentOS, Ubuntu, Ansible automation at scale, DNS and LDAP (Red Hat / Oracle)
• Experience with high availability and disaster recovery solutions, security frameworks (ISO 27001, CIS benchmarks), scripting (Bash, Python) and IaC principles
• Proven ability to manage large‑scale environments (1000+ servers)
• Strong problem‑solving, troubleshooting, and communication skills

What We Offer You

We provide a variety of benefits to support your work‑life balance and professional growth.

Benefits

• Flexible working hours and the option to work from home
• Extensive induction program with experienced mentors and buddies
• Opportunities for further development and educational opportunities
• Global Family Leave Policy
• Employee Assistance Program
• Internal inclusion & diversity employee networks

Diversity and Inclusion

• Inclusion and valuing diversity of thought and experience are at the heart of our culture. We welcome people with diverse backgrounds and experiences, regardless of gender identity or expression, sexual orientation, race, religion, disability, neurodiversity, age, marital status, pregnancy status or place of birth.