Technical Support Practitioner

Infrastructure Consulting Practitioner

Project Role : Infrastructure Consulting Practitioner
Project Role Description : Support clients to design, build and run an agile, scalable IT infrastructure that is standardized and optimized to deliver operational efficiencies, improve employee and workplace performance and meet dynamic business demands. Apply infrastructure improvements across the workplace, network, data center and operations as well as provide resources to manage and run the infrastructure on a managed or capacity services basis.
Must have skills : Linux Operations
Good to have skills : NA
Minimum 5 year(s) of experience is required
Educational Qualification : 15 years full time education

Summary:
As an Infrastructure Consulting Practitioner, you will support clients in designing, building, and running agile and scalable IT infrastructures. Your typical day will involve collaborating with various stakeholders to optimize operational efficiencies, enhance employee performance, and adapt to evolving business needs. You will apply infrastructure improvements across multiple domains, including workplace, network, data center, and operations, ensuring that the infrastructure is standardized and optimized for maximum effectiveness. Additionally, you will provide resources to manage and operate the infrastructure, whether on a managed or capacity services basis, contributing to the overall success of client projects.

Roles & Responsibilities:
System Administration
Install, configure, and maintain Red Hat Enterprise Linux (RHEL 7/8/9) servers
Manage system services, users, groups, permissions, and sudo access
Perform system monitoring, tuning, and performance optimization
Manage storage (LVM, file systems, mount points, multipath)
Security & Compliance
Implement and maintain OS-level security hardening
Manage SELinux, firewalld/iptables policies
Work with endpoint security tools such as CrowdStrike, Qualys, antivirus agents
Apply security patches and vulnerability remediation
Support audit, compliance, and vulnerability assessments
Networking
Configure and troubleshoot network interfaces, routing, DNS, and NTP
Diagnose connectivity issues (SSH, TCP/IP, firewall rules)
Work with jump/bastion hosts and zero-trust security models
Patch & Package Management
Manage YUM/DNF repositories and package installations
Perform OS patching and upgrades using Red Hat best practices
Handle kernel updates and system reboots with minimal downtime
Automation & Scripting
Develop and maintain shell scripts for automation
Use configuration management tools (Ansible preferred)
Automate routine tasks such as patching, user management, and health checks
Troubleshooting & Support
Provide L2/L3 support for Linux-related incidents and problems
Perform root cause analysis for system and application issues
Coordinate with network, security, and application teams
Virtualization & Cloud (optional based on role)
Support Linux systems on VMware, AWS, Azure, or GCP
Understand cloud security groups, NSGs, and IAM concepts
Documentation & Change Management
Maintain system documentation and SOPs
Participate in change management and on-call rotations
Follow ITIL processes (incident, problem, change)