Senior Manager, Cybersecurity

A10 Networks, Inc•San Jose, CA

48d•$200,000 - $215,000•Hybrid

About The Position

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

Requirements

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 experience building or operating production security controls.
Strong scripting or automation experience (Python, Go, Bash, or similar).
Experience leading during high-severity production incidents.
Strong understanding of: Network and application-layer security, Identity and access security models, Detection and response workflows, Production reliability and change management principles

Nice To Haves

Experience in networking, application delivery, or infrastructure security product companies.
Experience supporting security for customer-facing service platforms.
Experience working directly with production operations or SRE organizations.
Experience implementing large-scale automation or SOAR-driven response models.
CISSP, GIAC, or equivalent certifications.

Responsibilities

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
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.
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
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
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
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.