Linux System Administrator

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

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

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.

Azure AD + Windows & SQL Administrator

Location: Faridabad, Haryana

Experience: 8+ Years

Employment Type: Full-time

Role Overview

We are looking for an experienced Azure AD / Microsoft Entra ID + Windows & SQL Administrator with 8+ years of hands-on experience in managing enterprise infrastructure and hybrid Microsoft environments.

The candidate will be responsible for administration, troubleshooting, security, monitoring, backup, patching, and maintenance of Azure AD/Entra ID, Active Directory, Windows Server, and Microsoft SQL Server environments.

Required Skills

• Strong hands-on experience with Microsoft Azure AD / Entra ID.
• Strong knowledge of Active Directory and Azure AD Connect / Entra Connect.
• Extensive experience in Windows Server Administration – 2016/2019/2022.
• Strong experience with Microsoft SQL Server Administration.
• Hands-on experience with SQL Backup, Restore, Patching, and Performance Tuning.
• Good knowledge of DNS, DHCP, and Group Policy (GPO).
• Strong PowerShell scripting and automation skills.
• Experience working with Hybrid Identity and Azure Infrastructure.
• Strong troubleshooting and problem-solving skills.
• Ability to work in an enterprise/global infrastructure environment.

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.

Experience Required: 2–3 Years

Employment Type: Full-time

Location: Delhi

Department: IT / Infrastructure & Data Center Operations

About the Role

We are looking for a skilled Wintel Administrator (L2) with 2–3 years of hands-on experience to manage and support our data center infrastructure, which includes a virtualized VMware environment, physical servers, database servers, and network/security appliances across LAN and DMZ zones. The ideal candidate will handle day-to-day server administration, virtualization management, backups, monitoring, and L2-level troubleshooting, while working closely with the infrastructure team on ongoing projects.

Key Responsibilities

·     Manage and maintain Active Directory, File Server, Web Server (IIS, Apache, Nginx), and Application Servers

·     Administer and support VMware ESXi hosts and vCenter (multi-host, multi-cluster environment) — VM provisioning, migration, snapshots, and resource allocation

·     Manage physical server hardware (Dell PowerEdge, HP ProLiant) including out-of-band management via iDRAC

·     Install, configure, troubleshoot, and back up database servers — MS-SQL, MySQL, MongoDB

·     Manage server backups and vReplication for disaster recovery of critical VMs and databases

·     Support and maintain monitoring tools (e.g., Zabbix) to track server/host performance, uptime, and alerts

·     Install and configure new Windows, Linux, and desktop systems

·     Install and troubleshoot Windows/Linux applications and software (VB, C#, .NET, Node.js-based apps, etc.)

·     Support DMZ and LAN zone server management, coordinating with network/security team on firewall, load balancer, and VPN (Site-to-Site) configurations

·     Assist with basic public cloud tasks (AWS) where hybrid/DR connectivity is involved

·     Manage and troubleshoot LAN/DMZ switches, WAN links, and connectivity issues at a basic level

·     Assist with patch management, deployment, and server/firmware upgrades

·     Monitor and maintain server performance, availability, and health across physical and virtual infrastructure

·     Respond to and resolve end-user issues escalated from Desktop Support (L1)

·     Maintain accurate documentation of server inventory, IP allocations, configurations, and network diagrams

·     Work on ongoing IT infrastructure projects as assigned

Required Skills & Qualifications

·     B.Tech or equivalent degree in Computer Science, IT, or related field

·     Minimum 2–3 years of hands-on experience as a Windows/Wintel Administrator

·     Strong working knowledge of Windows Server administration (2012/2016/2019/2022)

·     Hands-on experience with VMware ESXi and vCenter administration (multi-vCenter environment preferred)

·     Experience with physical server hardware management — Dell PowerEdge / HP ProLiant, iDRAC/ILO remote management

·     Hands-on experience with IIS, Apache, or Nginx web server management

·     Experience with MySQL, MS-SQL, and MongoDB — installation, configuration, troubleshooting, and backup

·     Good understanding of Active Directory, DNS, DHCP, and Group Policy

·     Working knowledge of firewall, load balancer, and basic network/VPN concepts (Site-to-Site VPN, WAN, DMZ)

·     Experience with server/VM backup and replication solutions for disaster recovery

·     Exposure to monitoring tools such as Zabbix or similar

·     Basic exposure to cloud platforms (AWS) for hybrid/DR connectivity

·     Familiarity with installing and troubleshooting applications like VB, C#, .NET

·     Ability to troubleshoot server hardware, OS-level (Windows/Linux), and virtualization issues

·     Experience with patch management and firmware/server upgrade cycles

Soft Skills

·     Strong troubleshooting and analytical skills

·     Good communication skills to coordinate with end users, network team, and cross-functional teams

·     Ability to work independently as well as escalate/collaborate with L3 when required

·     Willingness to work on-call/rotational shifts if required

·     Detail-oriented with a proactive approach to server monitoring, backups, and uptime management

About the role

We’re hiring an IT Systems Administrator for an NBFC to secure endpoints, SaaS, and networks across ~50 branches, ~250+ field staff, and ~50+ office users.

This is primarily an IT Admin + Security role, with secondary exposure to AWS cloud ops + light DevOps + basic DB access management.

If you’re an IT Admin aiming to break into AWS Cloud Ops + DevOps, this role is a strong next step — you’ll own core IT/security and get hands-on exposure to cloud operations and deployments.

Key responsibilities (Primary: IT Admin + Security)

• Manage endpoint security for laptops and mobiles (policies, patching, encryption, antivirus/EDR); drive MDM implementation now/future (e.g., Intune/Jamf).
• Administer Google Workspace (Gmail/Drive/Calendar): users, groups, permissions, SSO, MFA, sharing controls.
• Own joiner–mover–leaver lifecycle: provisioning/deprovisioning, access controls, periodic access reviews.
• Secure branch connectivity: VPN, internal Wi-Fi, internet usage controls; coordinate troubleshooting and standardization across branches.
• Manage HO security stack: firewall operations, rule changes with change control, monitoring/log review (basic but consistent).
• Secure SaaS tools (CRM/HRMS/comms like Slack/Zoom): role-based access, MFA enforcement, offboarding, integration/OAuth controls.
• Maintain IT asset inventory: procurement coordination, issuance/return, audits, warranty/AMC, license renewals; remote lock/wipe for lost devices.
• Handle security incidents: phishing, account compromise, device loss/theft — contain, investigate, recover, and prevent recurrence.
• Run backups and basic DR testing; maintain SOPs/documentation and train staff on cyber hygiene.
• Provide hands-on user support: laptop builds, software installs, Outlook/Excel issues, VPN/Wi-Fi troubleshooting, escalations and vendor coordination.

Secondary responsibilities (AWS + DevOps + DB ops support)

• Support AWS administration: IAM users/roles/policies, MFA, access key hygiene, basic log review (e.g., CloudTrail).
• Manage AWS access controls: security groups/firewall rules, IP allowlists/whitelisting (admin tools, databases, vendor access).
• Assist engineering with DevOps operations:
• CI/CD support (deployment coordination, rollbacks, environment configuration)
• Secrets/credentials management and rotation (no shared creds)
• DNS + SSL/TLS certificates, basic monitoring/alerting coordination
• Bonus: Docker/Kubernetes and Terraform exposure
• Basic database operations (admin-lite):
• DB user creation, roles/permissions, least-privilege access
• IP allowlisting/whitelisting for DB access via VPN/approved sources
• Backup/restore verification coordination and basic monitoring signals (connections/storage)

Requirements

• 3+ years in IT security / systems administration (BFSI or branch-heavy org preferred).
• Hands-on with Google Workspace or Microsoft 365 administration.
• Must have hands-on experience leading or executing an email suite migration (e.g., Google Workspace ↔ Microsoft 365), including mailbox migration, DNS cutover, MX/SPF/DKIM/DMARC reconfiguration, and user transition management.
• Strong endpoint/security fundamentals: encryption, patching, AV/EDR, remote support, device compliance.
• Comfortable with networks: VPN/Wi-Fi/LAN troubleshooting; firewall basics and change discipline.
• Strong operational discipline: asset tracking, vendor management, documentation, ticketing, user communication.
• Practical AWS familiarity (IAM, access controls, logging) and ability to support DevOps workflows.

Nice to have

• Experience implementing MDM at scale (Intune/Jamf/SureMDM).
• Exposure to SOC2 / ISO27001 evidence, controls, and audit workflows.
• Scripting for automation (PowerShell/Bash/Python).
• Familiarity with managed databases and secure access patterns.

•     Vista Plus Development & Engineering

•     Shell Scripting

•     Application installation and upgrade in Linux environments (added advantage)

•     File System Management

•     Incident, Change, and Problem Management (ITIL)

•     Basic Oracle / Database concepts

•     Production Support and Health Check Monitoring

•     Documentation and Operational Governance

Essential Skills: Candidate must have MECM/ SCCM Administration experience especially in Patch Deployment and Application Deployment. Candidate must have experience on Application Packaging using PowerShell. PowerShell Scripting knowledge Intune

Desirable Skills:

Keyword:

Skills: EUCS_TOOLS_SCCM

Experience Required: 4-6

About Nerve Solutions

Nerve Solutions is a team of engineers building products for real-time risk management and surveillance in financial markets. Our solutions enable market participants to identify, monitor, and quantify risks and anomalies in live markets, allowing them to take corrective action at sub-second speeds.

We also develop products for automated trading and have become a trusted technology partner to some of the largest financial services organizations in the region.

About the Role

We are looking for a proactive and detail-oriented IT & Information Security Engineer to manage and maintain the organization's IT infrastructure while ensuring the security, availability, and reliability of our systems. The role involves providing technical support, administering hardware and software, strengthening cybersecurity practices, monitoring network activities, and implementing security controls to safeguard organizational assets.

The ideal candidate should have strong infrastructure knowledge, a security-first mindset, and the ability to troubleshoot technical issues while continuously improving the organization's IT environment.

Roles & Responsibilities

• Manage and maintain the organization's IT infrastructure, including hardware, software, servers, and network systems.
• Provide technical support to employees by troubleshooting hardware, software, network, and system-related issues.
• Configure, deploy, and maintain desktops, laptops, peripherals, printers, and other IT equipment.
• Set up user accounts, systems, and required software for new employees and support onboarding activities.
• Monitor network performance and employee network activities to ensure system security and compliance.
• Implement and maintain endpoint security solutions, antivirus tools, firewalls, and access control mechanisms.
• Perform regular system updates, security patching, vulnerability assessments, and preventive maintenance.
• Identify infrastructure risks and recommend security enhancements to minimize vulnerabilities.
• Maintain documentation for IT assets, software licenses, network configurations, security policies, and system inventories.
• Assist in implementing information security best practices, security audits, and compliance initiatives.
• Coordinate with internal teams to ensure IT services effectively support business operations.
• Stay updated with the latest cybersecurity threats, technologies, and industry best practices.

Required Skills

• 2–4 years of experience in IT Infrastructure, System Administration, or Information Security.
• Strong knowledge of Windows operating systems, networking, servers, and IT infrastructure.
• Experience troubleshooting hardware, software, network, and user-related issues.
• Knowledge of network security, endpoint protection, firewalls, VPNs, and vulnerability management.
• Experience with Active Directory, user access management, and system administration.
• Familiarity with Microsoft 365 administration is an added advantage.
• Understanding of backup, disaster recovery, and IT asset management.
• Strong analytical and problem-solving skills with attention to detail.
• Good communication and documentation skills.
• Ability to work independently and collaboratively in a fast-paced environment.

Preferred Qualifications

• Bachelor's degree in Information Technology, Computer Science, or a related field.
• Certifications such as CompTIA A+, Network+, Security+, Microsoft, CCNA, or equivalent will be an added advantage.