Nextracker - System Administrator

Description :

We are looking for a dynamic and experienced Systems Administrator to join our global IT team.

This role will be responsible for supporting and evolving a modern hybrid infrastructure that spans on-premises data centers, cloud platforms, and globally distributed networks.

The ideal candidate should be well-versed in next-generation network technologies, security best practices, system migrations, and multi-region infrastructure support.

A strong drive to learn, adapt, and contribute proactively is essential.

Key Responsibilities :

Infrastructure & Systems Operations :

- Job involves maintaining, configuring, and ensuring the reliable operation of an organization's computer systems, servers, and IT infrastructure, including user support, security, backups, performance monitoring, and hardware/software management to minimize disruptions and meet business needs.

- Key tasks include managing user accounts, troubleshooting complex issues, implementing security measures (firewalls, updates), performing backups, optimizing system performance, and providing help desk support.

- Infrastructure Management : Setting up, configuring, and maintaining servers (Windows, Linux), networks, and cloud environments.

- User & Account Management : Onboarding/offboarding users, managing permissions, and access controls (like SSO).

- Security & Compliance : Implementing security policies, monitoring threats, managing firewalls, and ensuring data protection.

- Backup & Disaster Recovery : Performing regular data backups and planning for business continuity.

- Performance Monitoring : Optimizing system performance and reducing downtime.

- Technical Support : Acting as a help desk for internal users, troubleshooting hardware/software/network issues.

- Software & Hardware : Installing, upgrading, and maintaining applications and computer hardware.

- Asset Management : Keeping IT asset inventory up-to-date.

- Strong knowledge of operating systems (Windows Server, Linux).

- Understanding of networking principles (LAN/WAN, firewalls).

- Problem-solving and critical thinking.

- Ability to communicate technical information clearly.

- Administer and optimize physical and virtual servers across global sites.

- Manage hybrid environments that include both on-prem and public cloud platforms.

- Monitor and enhance performance, availability, and capacity of systems.

- Automate recurring tasks and improve system reliability using scripting and orchestration tools.

Cloud & Migration Projects :

- Contribute to cloud adoption, migration, and modernization initiatives across infrastructure and applications.

- Support identity federation, secure access, and cloud-based networking configurations.

- Assist in workload migrations between environments while ensuring minimal downtime and maximum security.

Security & Compliance :

- Apply industry-standard security best practices across systems, networks, and web-facing platforms.

- Ensure secure configuration, access control, and data protection policies are enforced across all environments.

- Collaborate with internal security teams on patch management, threat detection, and compliance audits.

- Support logging, monitoring, and alerting integrations with centralized systems (e.g., SIEM).

Web Infrastructure & Secure Hosting :

- Administer hosting environments for corporate and product websites, ensuring availability, performance, and security.

- Implement web security layers such as encryption, secure DNS, firewalls, and attack mitigation practices.

Documentation & Operational Readiness :

- Maintain accurate documentation of network topologies, IP schemas, system configurations, and procedures.

- Create infrastructure playbooks, support runbooks, and change control records.

- Contribute to DR/BCP planning and regularly test backup and recovery processes.

Collaboration & Support :

- Provide Tier 2/3 support for escalated infrastructure incidents.

- Collaborate with globally distributed teams to support critical projects and service uptime.

- Participate in infrastructure upgrades, migrations, and innovation initiatives.

Qualifications :

Education & Certifications :

- Bachelor's degree in Information Technology, Computer Science, or related field. Relevant certifications (networking, cloud, virtualization, or security) are a plus.

Experience :

- 5+ years of experience in enterprise system and network administration roles.

- Strong background in managing modern infrastructure across on-prem and cloud environments.

- Experience in network modernization projects including SDN, SD-WAN, or zero trust implementations.

- Familiarity with cloud IaaS/PaaS platforms, directory services, and hybrid identity management.

Skills & Competencies :

- Solid understanding of core infrastructure services : DNS, DHCP, VPN, VLANs, firewalls, access controls.

- Experience with virtualization, cloud-based workloads, and scripting languages (e.g., PowerShell, Bash).

- Comfortable with monitoring tools, system health checks, and performance tuning.

- Strong analytical, communication, and troubleshooting skills.

- Self-motivated, eager to learn, and enthusiastic about supporting a global organization.