Director, IT Infrastructure

Five9

Director of IT Infrastructure leading IT strategy and operations for cloud contact center software company Five9. Delivering a secure and reliable computing environment across business functions.

Posted 6/3/2026full-timeIrving • Texas • 🇺🇸 United StatesLead💰 $119,300 - $371,300 per yearWebsite

Tech Stack

Tools & technologies

AWSAzureCloudDNSGoogle Cloud Platform

About the role

Key responsibilities & impact

Own and execute the multi-year strategy and roadmap for global IT infrastructure and operations, aligned to Five9’s business priorities and growth plans.
Serve as a key member of the CIO’s leadership team; contribute to enterprise IT strategy, budget planning, and organizational design.
Build, develop, and retain a high-performing global team of IT leaders, managers, engineers, and administrators across multiple geographies.
Establish a culture of operational excellence, accountability, continuous improvement, and customer service to internal stakeholders.
Partner with the CISO and Security leadership to ensure infrastructure design, identity controls, and operational practices meet Five9’s security and compliance obligations.
Own the global enterprise network strategy: corporate LAN/WLAN, SD-WAN, remote access (ZTNA/VPN), DNS, and internet egress across all Five9 offices and remote workers.
Ensure network availability, performance, and observability meet defined SLAs across all regions.
Drive modernization initiatives — zero trust networking, secure access service edge (SASE), network automation — with clear business cases and measurable outcomes.
Manage relationships with network carriers, ISPs, and connectivity partners globally.
Own the enterprise IAM strategy and platform: single sign-on, multi-factor authentication, lifecycle management, privileged access management, and entitlement governance.
Partner with HR, Security, and application owners to ensure consistent identity governance across SaaS, infrastructure, and internal applications.
Own the strategy and operations for corporate IT cloud services.
Drive cloud FinOps discipline: cost visibility, optimization, and forecast accuracy.
Define and report on KPIs and SLAs across all functional areas: availability, MTTR, ticket resolution, change success rate, employee satisfaction (CSAT), and cost per user.

Requirements

What you’ll need

10+ years of progressive IT experience, with 5+ years in leadership roles managing global infrastructure and operations functions.
Demonstrated experience leading multiple of the in-scope domains — networking, IAM, IT services, cloud services, and Microsoft 365 — at enterprise scale.
Track record of building, developing, and retaining high-performing global IT organizations, including direct management of managers.
Deep experience operating in a cloud-first or cloud-heavy environment; comfort with public cloud platforms (Azure, AWS, GCP) and SaaS-based IT operating models.
Strong working knowledge of modern identity and zero-trust architectures.
Demonstrated ability to set strategy, build a roadmap, and execute through quarterly milestones with measurable outcomes.
Excellent communication skills, including the ability to present to executive leadership and external partners.
Experience operating in a regulated environment (SOC 2, ISO 27001, GDPR, etc.) and partnering closely with Security and Compliance functions.
Experience integrating IT environments through M&A activity.
Bachelor’s degree in Computer Science, Information Systems, or related field, or equivalent experience.

Benefits

Comp & perks

Health, dental, and vision coverage, beginning on the first day of employment.
Short & Long-Term Disability
Basic Life Insurance
401k saving plan with employer matching.
Access to an innovative mental health support platform that offers personalized care and resources.
Generous employee stock purchase plan.
Paid Time Off
Company paid holidays
Paid volunteer hours
12 weeks paid parental leave.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

networkingidentity and access management (IAM)cloud servicesMicrosoft 365zero trust architecturecloud platforms (Azure, AWS, GCP)network automationcorporate LAN/WLANSD-WANcost optimization

Soft Skills

leadershipcommunicationstrategic planningteam developmentoperational excellencecustomer servicerelationship managementorganizational designcontinuous improvementexecutive presentation

Certifications

SOC 2ISO 27001GDPR