Lead Architect – Application Security

F5
San Jose, Seattle
Workplace: HybridFull timeUSD 297,600 - 446,400 annuallyFunction: CybersecurityExperience: 20+ yearsSkills: ["Attention to detail","Problem-solving","Communication","Mentorship"]

Lead the application security architecture across F5’s security portfolio, spanning WAF, DDoS mitigation, AI security, bot defense, API security, TLS inspection, and identity-aware access. Own cross-portfolio architectural strategy, modernization from legacy to composable API-driven services, and threat modeling/governance. Drive alignment across product, engineering, SRE, and infrastructure while mentoring senior architects and representing F5’s security vision externally.

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FursaFursa
F5
F5
1 month ago

Lead Architect – Application Security

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Source: Company careers pageValidated by: Fursa AI
Last checked: 12 days agoStatus: Live

Job Summary

Lead the application security architecture across F5’s security portfolio, spanning WAF, DDoS mitigation, AI security, bot defense, API security, TLS inspection, and identity-aware access. Own cross-portfolio architectural strategy, modernization from legacy to composable API-driven services, and threat modeling/governance. Drive alignment across product, engineering, SRE, and infrastructure while mentoring senior architects and representing F5’s security vision externally.
Location: San Jose, Seattle
Workplace: Hybrid
Employment Type: Full time
Job Function: Cybersecurity

Key Responsibilities

  • •Define cross-portfolio application security architecture strategy across hardware, software, and cloud-native solutions and align it to F5’s long-term vision.
  • •Establish architectural principles, patterns, and roadmaps for WAF/WAAP, API security, DDoS, identity, client-side protection, and AI/ML-powered detection and response.
  • •Lead modernization to evolve monolithic or appliance-based capabilities into composable, API-driven services within a SaaS-native security control plane.
  • •Champion architectural governance, threat modeling, telemetry/feedback loops, and scalability/observability/resiliency/secure-by-default practices across teams.
  • •Drive cross-functional alignment across product, engineering, SRE, and infrastructure and represent F5’s security vision through customer and industry engagements.

Pay and Benefits

Salary: USD 297,600 - 446,400 annually
Equity and Bonus:Equity

Key Requirements

  • •20+ years of experience in software and security architecture, including at least 10 years focused on application-layer security.
  • •Proven ability architecting complex application security systems across WAAP, API security, DDoS mitigation, bot protection, and malware detection.
  • •Deep understanding of L7 protocols (HTTP/2, HTTP/3, WebSockets, gRPC) and application security standards (OWASP Top 10, NIST, MITRE ATT&CK).
  • •Strong technical knowledge of TLS/certificate management and identity & access protocols (OAuth2, OIDC, SAML) with secure session management.
  • •Familiarity with zero trust, policy-as-code, multi-tenant SaaS designs, and runtime enforcement in Kubernetes-based container platforms (Kubernetes, Istio, Envoy).
Experience:20+ yearsCybersecurityApplication-layer securityWAAPSaaSCloud-native
Skills:Attention to detailProblem-solvingCommunicationMentorship
Tech Stack:WAFDDoS mitigationAI SecurityBot DefenseAPI SecurityTLS inspectionIdentity-aware accessF5 Distributed Cloud ServicesBIG-IPNGINXHTTP/2HTTP/3WebSocketsGRPCOWASP Top 10NISTMITRE ATT&CKTLSCertificate managementOAuth2

Company Brief

F5
Provides application delivery networking, load balancing, and security solutions for on-premises and cloud environments, helping organizations optimize, secure, and scale applications and APIs across multi-cloud infrastructures.
Industry: Networking Equipment
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: Seattle, United States
Founded: 1996
Glassdoor
Glassdoor: 3.8
WebsiteLinkedIn