Sr. Linux System Admin

Job Description – Linux Administrator

Role: Linux Administrator

Experience: 8+Years

Location: chennai

Required Skills

Experience with Linux servers in virtualized environmentsExperience installing| configuring| and maintaining services such as Bind| Apache| nginx| etc.Familiarity with the fundamentals of Linux scripting languagesAbility to build and monitor services on production serversExperience with virtualization technologies| such as Nutanix or VMWareProficient with network tools such as iptables| firewalld| netstat| Experience on SSSD service for domain joiningMaintain and monitor all patch releases and design various patch installation strategies and maintain all systems according to NIST standardization.Proficient with network tools such as iptables| Linux IPVS| HAProxy| etcMonitor everyday systems and evaluate availability of all server resources and perform all activities for Linux servers.Nutanix AHV Administration Basic Ansible Scripting

Desirable Skills:

Keyword:

• Skills: RedHat Linux

Location : Mumbai

Big Picture (The Opportunity) :

Are you looking for an opportunity to advance your Career? & If you are able to maintain a positive attitude even when everything goes wrong, if you are detail oriented and self motivated with a passion to learn and improve your skills and knowledge, we have a perfect job for you !

What do we want from you ? (Our Expectations) :

• Zero to 2 years experience in Linux Operating System.
• Flexible working hours - able to support occasional nights, weekends, and call-ins, able to quickly adapt to a constantly changing faced paced environment. Open to travel to sites.
• An ideal person who is excited and motivated about running and supporting a production - grade critical infrastructure and looks for opportunities to improve processes with automation.

What are you required to do ? (Your Responsibilities) :

• Proactively maintain and develop all linux infrastructure technology to maintain a 24*7*365 uptime service.
• Engineering of systems administration-related various solutions for our various SAAS products and projects as well as operational needs.
• Proactively monitoring system performance and capacity planning.
• Providing technical support to customers for Applications, Operating systems, and networking.
• Will also be the first point of contact for our clients, where installations are placed on a permanent basis, for basic troubleshooting and problem solving.
• Fault finding, analysis and logging information for reporting of performance exceptions.
• Maintain best practices on managing systems and services across all environments.

Skills & Qualification Required (Add Value) :

• Graduate - Preferred to have Bachelor‘s Degree in Engineering, Computer Science or related field.
• He / She should be familiar with the installation and configuration of Linux operating systems and setup and operation of TCP/IP networking on Linux systems also familiar with Internet concepts including SMTP, IMAP, POP, HTTP, DNS, LDAP and related protocols.
• You should possess excellent communication skills .
• Knowledge of Email concepts, Helpdesk Concept , VoIP Concept , Cloud computing will be an added advantage.

Job Description

Position Title: System Administrator

Employment Type: Full-Time, Permanent

Department: Research and Development

Reports To: R&D Manager, India Development Centre

Work from Office; No Remote; No Hybrid

About the Company

We are a software product and solutions company that builds mission-critical platforms used in regulated industries such as life sciences, biotech research, public health, and government compliance. Our systems are used to manage workflows, audits, research approvals, data security, compliance, and more—helping institutions reduce risk, increase transparency, and advance human well-being.

Our product line includes dynamic form engines, workflow automation, rules engines, analytics, AI/ML integrations, and user-centric digital tools for a global customer base.

Job Summary

We are looking for a skilled Windows & Linux System Administrator / Desktop Engineer responsible for managing, maintaining, monitoring, and troubleshooting the organization's IT infrastructure, including Windows and Linux servers, desktops, laptops, networks, applications, and end-user systems.

The role requires a combination of system administration, desktop support, troubleshooting, security, user management, and infrastructure monitoring. The candidate should be comfortable working independently, resolving technical issues, and providing timely support to employees.

Key Responsibilities

• Install, configure, maintain, and troubleshoot Windows and Linux servers.
• Manage Active Directory, DNS, DHCP, Group Policies, users, and access permissions.
• Perform server monitoring, patching, updates, backup checks, and basic security administration.
• Provide desktop and laptop support, including OS, software, hardware, printer, email, VPN, and connectivity troubleshooting.
• Troubleshoot basic LAN, Wi-Fi, TCP/IP, DNS, and VPN issues.
• Manage employee IT setup, onboarding/offboarding, and IT asset allocation.
• Monitor antivirus/endpoint security and ensure systems are updated and secure.
• Maintain IT inventory, system documentation, and helpdesk/ticket records.
• Coordinate with vendors and escalate infrastructure issues when required.
• Support virtualization, cloud, backup, and disaster-recovery activities as needed.

Required Skills

• Windows 10/11, Windows Server, Active Directory, DNS, DHCP, Group Policy
• Linux (Ubuntu/RHEL/CentOS) and basic Shell scripting
• Desktop/laptop hardware and software troubleshooting
• Basic networking: TCP/IP, LAN, Wi-Fi, VPN
• Backup, patch management, antivirus, and system monitoring
• Good troubleshooting, communication, and documentation skills
• Qualification
• Bachelor's degree/Diploma in Computer Science, IT, Electronics, or a related field.
• Preferred
• Exposure to VMware/Hyper-V, AWS/Azure, PowerShell/Bash, and IT helpdesk/ticketing tools.

Senior System Administrator

Location: Chennai

Experience: 10+ Years

Job Summary

We are looking for a skilled Senior System Administrator to manage and maintain enterprise infrastructure across Windows Server, VMware virtualization, and enterprise storage environments. The role will be responsible for ensuring high availability, performance, security, and reliability of IT infrastructure supporting business operations.

Key Responsibilities

Windows Server Administration

• Install, configure, maintain and troubleshoot Windows Server environments.
• Administer Active Directory, Group Policy, DNS, DHCP and File Services.
• Resolve server-related incidents and access issues.

VMware Administration

• Manage VMware vSphere, ESXi and vCenter environments.
• Perform VM migrations using vMotion.
• Manage snapshots and optimize VM resources.

Storage Administration

• Manage enterprise SAN/NAS storage environments.
• Work with storage platforms such as Dell EMC, NetApp, HPE or equivalent.
• Configure and manage LUNs, RAID, storage allocation and replication.
• Monitor storage performance and capacity.
• Support storage integration with backup environments.

Compliance & IT Operations

• Ensure infrastructure adherence to IT security policies and organizational standards.
• Support internal/external audits and compliance requirements, including ISO/SOX where applicable.
• Maintain infrastructure documentation, configurations and change records.
• Ensure patch compliance and vulnerability remediation.
• Support IT governance and implementation of standard operating procedures.

Required Skills

• Strong hands-on experience in Windows Server Administration.
• Good experience with Active Directory, Group Policy, DNS and DHCP.
• Hands-on experience with VMware vSphere, ESXi and vCenter.
• Practical knowledge of vMotion, VM snapshots and resource management.
• Experience with SAN/NAS storage administration.
• Knowledge of LUN, RAID, storage allocation and replication.
• Experience with infrastructure patching and vulnerability remediation.
• Good troubleshooting and incident-resolution skills.
• Good communication and documentation skills.
• Exposure to Linux administration.

Education & Experience

• Bachelor's degree in Computer Science, Information Technology, Electronics or related field; B.Tech/B.E/BCA/MCA or equivalent preferred.
• 10+ years of relevant infrastructure/system administration experience.

Good to Have

• Microsoft MCSA / MCSE / AZ-800 / AZ-801
• VMware VCP – Data Center Virtualization
• Dell EMC / NetApp / HPE Storage certifications
• ITIL Foundation

Key Technologies

Windows Server | Active Directory | GPO | DNS | DHCP | VMware | ESXi | vCenter | vSphere | vMotion | SAN | NAS | Dell EMC | NetApp | HPE Storage | LUN | RAID | Replication | Linux | Patch Management | Vulnerability Management

We are seeking a skilled System Administrator and DevOps Engineer to join AmpereHour Energy, where you will play a crucial role in making sure our software systems run without downtime and our infrastructure scales well. This position involves working on cloud and physical servers across multiple operating systems and fundamental understanding of computers and networking.

At AmpereHour Energy, we are dedicated to advancing sustainable energy solutions. Our team thrives on collaboration and innovation, driving impactful projects that contribute to a greener future. We value expertise and creativity, making it an exciting place for tech professionals to grow.

If you are interested in this opportunity and meet the qualifications outlined in the job description, we encourage you to apply and explore how you can contribute to our mission.

Job Overview

We are seeking a highly experienced Senior Linux Infrastructure Engineer with deep expertise in Linux administration, bare metal infrastructure, enterprise storage, and next-generation AI Factory / GPU infrastructure platforms. This role is focused on designing, deploying, operating, and troubleshooting large-scale Linux-based infrastructure that powers both traditional enterprise workloads and modern AI/ML environments.

This is not a DevOps-focused role. We already have a dedicated DevOps team and are looking for an engineer with extensive hands-on experience in Bare Metal as a Service (BMaaS), GPU infrastructure, high-performance storage, data center operations, and enterprise Linux platforms.

The ideal candidate will have experience building and managing infrastructure from the hardware layer up, including servers, networking, storage, GPU clusters, and AI-ready platforms. They should be comfortable working with high-performance computing (HPC), AI Factory environments, and large-scale Linux deployments where performance, reliability, and operational excellence are critical.

Key Responsibilities & Required Skills

Linux & Bare Metal Infrastructure

• Expert-level Linux administration (Ubuntu required; Red Hat and SUSE preferred)
• Deep expertise in bare metal server deployment, architecture, provisioning, and lifecycle management
• Experience operating Bare Metal as a Service (BMaaS) platforms and large-scale infrastructure environments
• Strong understanding of server hardware, including:
• BIOS/UEFI
• RAID controllers
• Firmware management
• iLO/iDRAC/IPMI
• NICs and SmartNICs
• HBA cards
• Hardware diagnostics and troubleshooting
• Experience designing, implementing, and supporting enterprise Linux infrastructure at scale

AI Factory & GPU Infrastructure

• Experience deploying and managing GPU-accelerated infrastructure for AI/ML workloads
• Understanding of NVIDIA GPU technologies including:
• A100, H100, H200, B200, or equivalent GPU platforms
• NVIDIA DGX and OEM GPU servers
• GPU provisioning and lifecycle management
• GPU monitoring and performance optimization
• Knowledge of AI Factory architecture and infrastructure requirements
• Experience supporting GPU clusters, AI training environments, and high-performance computing (HPC) workloads
• Understanding of:
• GPU resource allocation and scheduling
• Multi-GPU systems
• GPU networking requirements
• High-bandwidth, low-latency infrastructure design
• Familiarity with NVIDIA ecosystem technologies such as:
• CUDA
• NCCL
• GPUDirect Storage
• NVIDIA Fabric Manager
• NVIDIA Base Command (preferred)

Enterprise Storage & Data Platforms

• Advanced Linux storage administration:
• LVM
• XFS, EXT4
• NFS
• iSCSI
• Fibre Channel SAN
• Multipath I/O
• Strong hands-on experience with Ceph, including:
• Cluster architecture
• MON, OSD, MDS
• RBD, CephFS, RGW
• Capacity planning
• Performance tuning
• Failure recovery
• Experience with high-performance AI storage platforms such as:
• WEKA
• VAST Data
• Dell PowerScale
• Pure Storage FlashBlade
• NetApp
• Understanding of:
• NVMe-over-Fabrics (NVMe-oF)
• RDMA
• GPUDirect Storage
• Parallel file systems
• AI data pipelines

Networking & Infrastructure

• Strong networking knowledge:
• Bonding
• VLANs
• Routing
• MTU optimization
• DNS
• DHCP
• Experience with high-performance data center networking:
• 100G/200G/400G Ethernet
• RoCE
• RDMA
• Spine-Leaf architectures
• Familiarity with NVIDIA Spectrum-X, Mellanox/NVIDIA ConnectX adapters, or equivalent technologies
• Strong understanding of Layer 2 and Layer 3 infrastructure design and troubleshooting

Operations & Reliability

• Experience with high availability, clustering, and disaster recovery
• Strong troubleshooting skills across:
• Linux operating systems
• Hardware platforms
• GPU infrastructure
• Networking
• Enterprise storage
• Experience supporting mission-critical production environments
• Bash and Python scripting for automation and operational efficiency
• Experience creating operational documentation, runbooks, and infrastructure standards

Nice to Have

• Kubernetes infrastructure (especially AI/ML and GPU integration)
• KVM, VMware, OpenShift Virtualization, or similar virtualization platforms
• Ansible automation
• NVIDIA Base Command Manager
• Slurm or HPC workload schedulers
• Observability and monitoring platforms (Prometheus, Grafana, OpenTelemetry)
• Data Center Infrastructure Management (DCIM) tools
• IPAM solutions
• AWS, Azure, or hybrid cloud exposure

Job Description

We are looking for a Windows Administrator with strong hands-on experience in Windows Server administration, upgrades, patching, vulnerability remediation, and troubleshooting.

Key Responsibilities

• Perform Windows Server administration, upgrades, and patching.
• Plan and execute OS upgrades, security patches, and hotfixes.
• Identify and remediate Windows vulnerabilities and security issues.
• Troubleshoot server, OS, application, and performance-related issues.
• Monitor CPU, memory, disk, services, and overall server health.
• Perform incident management and root-cause analysis.
• Manage Active Directory, DNS, DHCP, and Group Policy.
• Support VMware / Hyper-V virtualized environments.
• Automate administrative and remediation activities using PowerShell.
• Coordinate with security, application, network, and cloud teams.
• Maintain system documentation and ensure compliance with operational standards.

Primary Skills

• Windows Server Administration
• Windows Upgrades & Patching
• Vulnerability Remediation
• Troubleshooting & RCA
• Active Directory
• DNS / DHCP / Group Policy
• PowerShell
• VMware / Hyper-V