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Nexxen

Programmatic advertising platform with data management

Senior IT Systems Engineer

System AdministrationConfirmed live in the last 24 hours
Full-timeNew York, NY, USA

About the Job

Requirements

  • At least 7 years of experience in systems engineering, infrastructure engineering, or related enterprise IT roles.
  • Demonstrated experience managing complex enterprise environments across cloud, SaaS, and on-premises platforms.
  • Strong expertise with AWS cloud infrastructure and services, Microsoft 365 and Entra ID, Active Directory and identity services, VMware administration, and enterprise networking, routing, switching, firewalls, VPNs, and high-availability architectures.
  • Experience implementing and supporting single sign-on (SSO), multi-factor authentication (MFA), SCIM provisioning, role-based access control (RBAC), and access governance.
  • Advanced PowerShell scripting and automation experience using APIs and Microsoft Graph.
  • Strong knowledge of cybersecurity principles, vulnerability management, risk management, and compliance frameworks.
  • Experience leading infrastructure projects, migrations, and operational improvement initiatives.
  • Proven ability to perform advanced troubleshooting and root cause analysis across infrastructure, networking, cloud, and SaaS technologies.
  • Strong documentation, communication, and cross-functional collaboration skills.

Responsibilities

  • Design, implement, and support enterprise infrastructure across AWS, Azure, Microsoft 365, SaaS platforms, and on-premises environments.
  • Lead infrastructure modernization, platform standardization, migration, and lifecycle management initiatives.
  • Design and support highly available, scalable, and resilient systems, including disaster recovery and business continuity capabilities.
  • Perform capacity planning, performance optimization, proactive monitoring, and operational health management.
  • Lead complex troubleshooting efforts, root cause analysis, and post-incident remediation activities.
  • Serve as the highest-level escalation point for infrastructure, networking, cloud, and identity-related issues.
  • Architect and administer Active Directory and Microsoft Entra ID environments.
  • Lead enterprise identity initiatives, including SSO, SCIM provisioning, MFA, and identity lifecycle management.
  • Implement and maintain RBAC, privileged access controls, and least-privilege security models.
  • Partner with application owners to integrate enterprise authentication and access governance solutions.
  • Administer and optimize Microsoft 365 services, including Exchange Online, SharePoint Online, Teams, and OneDrive.
  • Develop automation solutions using PowerShell, Microsoft Graph, APIs, and cloud-native technologies.
  • Implement AI-enabled operational efficiencies while maintaining governance, security, and compliance controls.
  • Support and integrate enterprise collaboration platforms, including Microsoft 365, Slack, and Jira Cloud.
  • Administer and optimize enterprise network infrastructure, including Cisco Meraki and Palo Alto Prisma Access/GlobalProtect environments.
  • Design and maintain secure remote access, VPN, segmentation, firewall, and network security architectures.
  • Implement security controls across cloud, identity, endpoint, and network environments.
  • Lead vulnerability management, patch management, endpoint protection, and remediation programs.
  • Assess infrastructure and technology risks and recommend appropriate mitigation strategies.
  • Define and maintain backup, retention, recovery, logging, and business continuity standards.
  • Support SOX, SOC 2, and other regulatory or audit requirements through control validation and documentation.
  • Develop and maintain architecture documentation, runbooks, operational procedures, and engineering standards.
  • Lead large-scale projects, technology migrations, integrations, and strategic initiatives.
  • Mentor engineers and contribute to technical leadership, knowledge sharing, and continuous improvement efforts.

Desired Qualifications

  • Industry certifications in AWS, Microsoft, VMware, security, or networking.
  • Experience with Google Cloud Platform (GCP).
  • Experience administering PagerDuty or similar incident management platforms.
  • Experience supporting global, geographically distributed organizations.

About the Company

Nexxen

Programmatic advertising platform with data management

Nexxen offers a full-stack programmatic advertising platform that combines demand- and sell-side capabilities with a data management layer and an in-house creative studio. It helps advertisers, brands, retailers, entertainment companies, and non-profits plan, activate, measure, and optimize cross‑platform campaigns across digital and linear media. The platform uses customer data to tailor advertising strategies while prioritizing privacy and GDPR compliance. Users manage data, creative assets, and media buying in a single interface, aiming to improve ROI and operational efficiency. Nexxen differentiates itself by providing an integrated solution that covers planning, activation, measurement, optimization, and education (via Nexxen U) in one place, along with a privacy‑conscious approach. Its goal is to help customers reach target consumers effectively while maximizing ROI and simplifying converged media campaigns.

Company size
501-1,000
Company stage
IPO
Headquarters
New York City, New York
Founded
2007

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