Senior Manager, Cybersecurity

Senior Manager, Cybersecurity

A10 Networks is seeking a Senior Manager, Production Operations & Data Center Security to lead security strategy and operational execution across production infrastructure, cloud environments, and data center platforms.

Reporting to A10's CISO, this is a hands-on leadership role responsible for building, operating, and continuously improving security controls and practices that protect both internal infrastructure and customer-facing services. This leader will lead cross-functional teams operating deeply within production environments, partnering closely with Production Operations, SRE, and Infrastructure Engineering to deliver comprehensive and measurable security outcomes.

The ideal candidate brings a strong builder mentality, deep technical background in production security, and a track record of scaling security practices through automation, mentorship, and operational excellence.

Core Leadership Philosophy

This role is expected to:

* Lead through technical credibility and hands-on engagement

* Own security controls as operational systems, not theoretical frameworks

* Build and improve - not just manage - security capabilities

* Operate as an incident leader during high-severity production events

* Mentor engineers and analysts into stronger production security operators

Key Responsibilities

Production & Data Center Security Ownership

* Oversee a mature customer-facing SOC team to ensure continuity of great customer service

* Own security posture across production data centers, cloud platforms, and hybrid infrastructure

* Partner with Infrastructure and SRE teams to embed security controls into platform design and deployment pipelines

* Ensure security controls operate reliably under production performance and availability constraints

* Lead security reviews of production architecture, traffic flows, and service dependencies

* Drive hardening standards across compute, network, identity, and application control layers

Security Control Engineering & Operationalization

* Own lifecycle of security controls including:

* Detection controls

* Preventative controls

* Compensating controls

* Response controls

* Lead control validation and continuous verification programs.

* Drive reduction of manual operational overhead through automation.

* Ensure security telemetry is actionable, high fidelity, and aligned to response automation.

Incident Response & Production Event Leadership

* Serve as senior incident commander for production security incidents

* Build response workflows aligned to production change control and reliability engineering practices

* Integrate security response into production incident management processes

* Lead post-incident analysis focused on control improvement and systemic risk reduction

Cloud & Hybrid Infrastructure Security

* Lead security practices across public cloud and hybrid infrastructure environments

* Partner with platform teams to secure:

* Identity and access models

* Network segmentation and service mesh security

* Container and orchestration environments

* Infrastructure-as-Code security controls

* Drive continuous cloud security posture improvement

Automation, Scripting & Tooling

* Lead development of automation and orchestration to:

* Reduce alert triage time

* Automate containment and enrichment

* Improve control deployment consistency

* Contribute directly to scripting and automation initiatives where appropriate

* Champion infrastructure-as-code and security-as-code practices

Mentorship & Technical Leadership

* Act as a player-coach across security and production teams.

* Mentor engineers in secure production design and incident response practices.

* Build growth paths for security engineers operating in production environments.

* Foster culture of ownership, operational accountability, and continuous learning.

Required Qualifications

* 10+ years in cybersecurity, infrastructure security, or production security engineering.

* 5+ years leading technical teams in production or security operations environments.

* Strong hands-on experience operating in:

* Data center infrastructure environments

* Cloud platforms (OCI, AWS, Azure, GCP)

* Hybrid infrastructure models

* Demonstrated…