Tata Consultancy Services · 1 day ago
Linux administrator
Minneapolis, MN
Full-time
Onsite
Mid Level
$90K/yr - $110K/yr
3+ years expTata Consultancy Services is seeking an experienced Linux System Administrator to manage, maintain, and optimize their Linux-based infrastructure. The ideal candidate will ensure the reliability, security, and performance of server environments while supporting development teams and business operations.
Enterprise SoftwareCloud ComputingConsultingInformation TechnologyBusiness Information SystemsIT Management
Responsibilities
Install, configure, and maintain Linux servers across multiple distributions (RHEL, CentOS, Ubuntu, Debian, SUSE)
Manage physical, virtual Linux environments (VMware)
Perform system updates, patches, and security hardening following best practices
Configure and manage system services, daemons, and startup processes (systemd, init.d)
Implement and maintain user account management, access controls, and sudo policies
Monitor system performance, resource utilization, and capacity planning
Manage disk storage, LVM, filesystems, and partition schemes
Configure and optimize kernel parameters and system tuning Server Infrastructure & Deployment
Deploy and provision new Linux servers using automation tools and kickstart/preseed configurations
Manage server lifecycle from provisioning to decommissioning
Implement load balancing and failover mechanisms
Manage virtual machine environments and hypervisors
Optimize server performance through tuning and resource allocation
Configure network interfaces, routing, VLANs, and bonding/teaming
Manage firewalls using iptables, firewalld, or nftables
Configure DNS, DHCP, and network services
Implement VPN solutions (OpenVPN, IPsec, WireGuard)
Troubleshoot network connectivity and performance issues
Configure SELinux/AppArmor security policies
Manage SSL/TLS certificates and key management
Configure and manage local and network storage (NFS, CIFS/Samba, iSCSI)
Implement RAID configurations and disk redundancy
Manage logical volume management (LVM) and filesystem optimization
Design and implement backup and recovery strategies
Configure and maintain backup solutions (rsync, Bacula, Amanda, Veeam, Commvault)
Perform regular backup testing and disaster recovery drills
Manage data retention policies and archival strategies
Implement security best practices and hardening standards (CIS benchmarks, STIG)
Configure and manage authentication systems (LDAP, Active Directory integration, Kerberos)
Implement SSH key management and secure remote access
Configure intrusion detection/prevention systems (IDS/IPS)
Perform regular security audits and vulnerability assessments
Manage security patches and emergency updates
Implement file integrity monitoring (AIDE, Tripwire)
Configure audit logging and centralized log management
Ensure compliance with security policies and regulatory requirements (PCI-DSS, HIPAA, SOC 2)
Implement comprehensive monitoring using tools like Datadog
Configure alerting for critical system events and thresholds
Monitor system logs using centralized logging solutions (ELK Stack, Splunk, rsyslog)
Analyze system performance metrics (CPU, memory, disk I/O, network)
Optimize system performance through kernel tuning and resource management
Troubleshoot performance bottlenecks and resource contention
Implement capacity planning based on growth trends
Develop shell scripts (Bash, Python, Perl) for automation and task scheduling
Develop monitoring scripts and health check utilities
Automate backup and recovery procedures
Install and configure web servers (Apache, Nginx)
Manage application servers (Tomcat, JBoss, WebLogic)
Configure reverse proxies and SSL/TLS termination
Optimize web server performance and caching
Implement log rotation and management
Support development teams with server configurations
Install and configure database servers (MySQL, PostgreSQL, Oracle)
Perform basic database administration tasks and backups
Monitor database server performance and resource usage
Coordinate with DBAs for advanced database operations
Implement database replication and high availability
Diagnose and resolve system issues, crashes, and performance problems
Troubleshoot boot failures, kernel panics, and hardware issues
Analyze system logs and error messages for root cause analysis
Respond to incidents and service requests in a timely manner
Escalate complex issues to appropriate teams or vendors
Document troubleshooting procedures and resolutions
Qualification
Required
3-5 years of hands-on Linux system administration experience in production environments
Strong knowledge of Linux distributions (RHEL/CentOS, Ubuntu/Debian preferred)
Proficiency in shell scripting (Bash) and at least one scripting language (Python, Perl)
Experience with package management (yum/dnf, apt/dpkg, zypper)
Strong understanding of networking concepts (TCP/IP, DNS, routing, firewalls)
Experience with configuration management tools (Ansible, Puppet, Chef, or SaltStack)
Knowledge of virtualization technologies (VMware, KVM, Xen)
Experience with monitoring and logging tools
Understanding of security best practices and hardening techniques
Strong troubleshooting and problem-solving skills
BACHELOR OF COMPUTER SCIENCE
Preferred
Linux certifications (RHCSA, RHCE, LPIC-1, LPIC-2, CompTIA Linux+)
Familiarity with infrastructure as code (Terraform, CloudFormation)
Experience with web servers and load balancers (Apache, Nginx, HAProxy)
Experience with enterprise backup solutions
Understanding of storage technologies (SAN, NAS, distributed filesystems)
Familiarity with DevOps practices and methodologies
Company
Tata Consultancy Services
Tata Consultancy Services is a business solutions company that specializes on information technology services and consulting.
10001+ employees
H1B Sponsorship
Tata Consultancy Services has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (7880)
2024 (9690)
2023 (8537)
2022 (11159)
2021 (9813)
2020 (11984)
Funding
Current Stage
Public CompanyTotal Funding
unknown2004-08-25IPO
Leadership Team
K. Krithivasan
Chief Executive Officer & Managing Director
Aarthi Subramanian
President and Chief Operating Officer
Recent News
2026-02-12
2026-02-12
Company data provided by crunchbase