Administer and maintain RHEL/Linux servers and HPC compute nodes, manage Kubernetes clusters, and ensure system reliability, security, performance, and availability. Perform tuning, patching, hardening, monitoring, capacity management, troubleshooting, and incident resolution. Automate administration with Ansible, shell scripting, and Python, integrate compute/storage/networking, and maintain documentation and operational procedures.
We are looking for Senior Linux System Administrators with strong hands-on experience in Red Hat Enterprise Linux (RHEL) and Kubernetes to administer and support the infrastructure underpinning an HPC environment. The role focuses on system reliability, security, performance, automation, and availability.
Key Responsibilities- Administer and maintain RHEL/Linux servers and HPC compute nodes.
- Install, configure, patch, upgrade, and troubleshoot Linux operating systems.
- Manage and support Kubernetes clusters, nodes, and workloads.
- Perform Linux performance tuning, system hardening, and troubleshooting.
- Monitor system health, capacity, performance, and availability.
- Automate infrastructure administration using Ansible, Shell scripting, Python, or similar tools.
- Support integration between compute, storage, networking, Kubernetes, and HPC platforms.
- Troubleshoot complex Linux, Kubernetes, and infrastructure issues.
- Implement security best practices across Linux and Kubernetes environments.
- Support incident resolution, root-cause analysis, and preventive actions.
- Maintain system configurations, technical documentation, and operational procedures.
Requirements
- Strong hands-on experience as a Linux System Administrator / Linux Engineer / RHEL Administrator.
- Expert-level administration of Red Hat Enterprise Linux (RHEL).
- Strong experience with Kubernetes administration and cluster management.
- Experience supporting HPC environments / compute clusters is highly preferred.
- Strong knowledge of:
- RHEL / Linux
- Kubernetes
- Linux performance tuning
- Linux patching and hardening
- System monitoring
- Troubleshooting
- Capacity management
- Strong automation/scripting experience with Ansible, Shell/Bash, Python, etc.
- Experience integrating compute, storage, and networking infrastructure.
- RHCE – Red Hat Certified Engineer: Mandatory
- CKA – Certified Kubernetes Administrator: Preferred
Similar Jobs
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Drives global go-to-market execution and partner growth for Mastercard’s SME ecosystem. Develops issuer activation frameworks, launch playbooks, enablement materials, adoption dashboards, governance routines, and performance insights. Coordinates Product, Sales, Services, Account Management, and regional teams to scale partner solutions, improve SME customer activation and utilization, and identify execution barriers. Supports partner business reviews, growth planning, best-practice sharing, and executive recommendations without directly owning regional execution.
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Collects, analyzes, and disseminates threat intelligence covering geopolitical, cyber, fraud, and physical security risks. Produces risk assessments, briefs executives, partners with security, crisis management, government, law enforcement, and industry stakeholders, and supports threat scenarios for red teaming, exercises, and resilience testing.
Cloud • Information Technology • Internet of Things • Machine Learning • Software • Cybersecurity • Infrastructure as a Service (IaaS)
Provides expert L3 administration, troubleshooting, and operational support for Microsoft Exchange, Active Directory, Entra ID, Windows Server, Microsoft 365, Azure, and collaboration platforms. Leads complex incident resolution, root-cause analysis, patching, upgrades, vulnerability remediation, PowerShell automation, documentation, and recovery procedures. Supports enterprise hybrid infrastructure, Azure Virtual Desktop, Intune, SharePoint, SCCM/MECM, and SCOM while collaborating across infrastructure, security, network, application, and vendor teams.
Top Skills:
Active Directory Domain ServicesAd/Entra ConnectAzureAzure Virtual DesktopDnsEnterprise VaultExchange HybridExchange OnlineFslogixGroup PolicyHpsmIntuneMicrosoft 365Microsoft Entra IdMicrosoft Exchange On-PremisesPowershellSccm/MecmScomServicenowSharepointWindows Server
What you need to know about the Mumbai Tech Scene
From haggling for the best price at Chor Bazaar to the bustle of Crawford Market, the energy of Mumbai's traditional markets is a key part of the city's charm. And while these markets will always have their place, the city also boasts a thriving e-commerce scene, ranking among the largest in the region. Driven by online sales in everything from snacks to licensed sports merchandise to children's apparel, the local industry is worth billions, with companies actively recruiting to meet the demands of continued growth.
