Top Senior Cyber Security Jobs in Los Angeles, CA

Designs and implements enterprise security solutions across infrastructure, SaaS applications, endpoints, cloud environments, and identity systems. Responsibilities include system hardening, security logging, SOAR, vulnerability remediation, security architecture, DLP, IAM, threat modeling, compliance oversight, risk assessments, and automation. The role provides technical leadership, manages security projects, defines roadmaps and controls, and communicates security risks to technical and business stakeholders.

Leads end-to-end delivery of AI security solutions for enterprise public-sector customers. Deploys and optimizes Zscaler AI Guard, AI Protect, and SPLX across cloud and Kubernetes environments; designs networking and firewall connectivity; performs automated AI red-teaming, vulnerability probing, and lab replication. Acts as a trusted technical advisor, produces documentation and demos, advocates customer needs, and supports product development. Requires expertise in LLMs, cloud networking, APIs, containers, and security, plus U.S. citizenship, clearance eligibility, and travel up to 40%.

Designs, deploys, and operates IAM controls across cloud and on-premises infrastructure. The role secures human, service, workload, and AI-agent identities through authentication, authorization, least privilege, lifecycle automation, policy guardrails, monitoring, and incident response. Responsibilities include implementing IAM integrations, access reviews, threat modeling, security automation, and reliable on-call operations while partnering with infrastructure, platform, and incident response teams.

Designs, implements, validates, and maintains cybersecurity and information system security solutions across the program lifecycle. Assesses assets, risks, threats, and vulnerabilities; supports RMF accreditation and authorization; develops remediation estimates; and applies security standards including NIST 800-53, JSIG, and NISPOM. Coordinates with engineering, network, software, testing, administration, and program management teams. Requires active TS/SCI clearance, DoD 8570 IAT Level II certification, and 9 or more years of related experience.

Design, deploy, and operate security controls for Dropbox’s AI and agentic infrastructure across cloud, Kubernetes, data stores, and on-premise systems. Secure authentication, authorization, networking, AI tools, and non-human workloads while addressing prompt injection, poisoning, supply-chain, and MCP risks. Lead security initiatives, harden infrastructure, automate policy and security operations, and collaborate cross-functionally to protect customer data. Participate in on-call rotations as required.

Own and improve Octus’s enterprise security technology across endpoints, identity, SaaS, email, DLP, AI tools, cloud, and applications. Responsibilities include managing security platforms, hardening systems, tuning SIEM detections, responding to incidents, driving remediation, supporting audits and client reviews, assessing vendor risk, automating workflows, and mentoring teammates. The role requires broad hands-on cybersecurity expertise across Mac and Windows environments, identity platforms, secure web gateways, DLP, compliance frameworks, scripting, and REST APIs.

Build and operate central security systems, automation, tooling, and controls across cloud infrastructure, identity, access, products, partners, and vendors. Develop AI-assisted security workflows, lead external assessments through verified remediation, identify and validate vulnerabilities, guide engineering teams, and participate in incident response. The role requires production security engineering experience, strong programming skills, cloud security expertise, and fintech, payments, or crypto experience.

Lead security architecture and design reviews, define standards for protecting sensitive healthcare data, build automated defenses, improve monitoring and incident response, redirect technical strategy, translate complex security objectives into engineering requirements, and mentor engineers through rigorous code and design reviews.

Partners with Sales to lead technical discovery, solution design, demonstrations, proof-of-value engagements, and customer validations for cybersecurity, identity, exposure management, and risk solutions. Advises enterprise security, identity, infrastructure, IT, risk, and executive stakeholders; explains network integrations and business outcomes; develops technical content and training; and supports sales pursuits, events, and competitive evaluations. Travel is typically 25–50%.

Own internal offensive security assessments across applications, APIs, cloud infrastructure, and corporate systems. Plan and execute penetration tests, validate vulnerabilities safely, review source code, and partner with engineering teams through remediation and retesting. Build automated security testing tools and workflows, lead adoption of AI-assisted offensive security capabilities, support third-party testing, improve detection and incident response, and participate in on-call responsibilities.

Designs and implements enterprise security solutions across infrastructure, SaaS applications, endpoints, cloud environments, and identity systems. Responsibilities include system hardening, security logging, SOAR, vulnerability remediation, threat modeling, DLP, IAM architecture, risk assessment, compliance oversight, and automation. Provides technical leadership, defines security roadmaps, manages projects, and partners with technical and business teams to improve enterprise security posture.

Leads enterprise network security architecture, engineering, and modernization across cloud and on-premises environments. Designs firewalls, WAF, DDoS protection, Azure connectivity, microsegmentation, Zero Trust, SASE, and SD-WAN solutions. Serves as a Level 3 incident escalation point, drives root-cause analysis and resilience improvements, establishes automation and DevSecOps standards, and mentors engineers. Partners with stakeholders and vendors to deliver secure, scalable network security platforms.

Own the architecture, security, reliability, observability, and scalability of AWS infrastructure supporting a Medicaid EHR platform. Design secure networking, IAM, encryption, monitoring, disaster recovery, vulnerability remediation, and audit readiness. Improve Azure DevOps CI/CD pipelines with safer releases and security gates, mature infrastructure-as-code practices, and partner with engineering on production architecture and operational decisions.

Protects player accounts and Riot’s service ecosystem by analyzing attacker behavior, building scalable detection systems and event-driven security services, conducting threat hunts, and improving security capabilities. The role collaborates with engineering, data, and security teams on architecture, implementation, and defensive solutions.

Build and maintain network edge security systems that improve API security posture, detect and mitigate abusive traffic, and respond to emerging threats. Responsibilities include developing streaming analytics pipelines, integrating CDN and security vendors, managing production systems, contributing to machine learning models, and implementing AI-driven traffic classification. The role requires software or security engineering experience, expertise in Java, Kotlin, TypeScript, Python, SQL, Spark, CDN platforms, and AWS.

Supports cybersecurity architecture, system and network administration, security operations, and mission-critical government environments. Responsibilities include managing security tools, developing secure configurations and architectures, conducting threat and impact analyses, documenting procedures, automating operations, reviewing compliance with government standards, and mentoring teammates. The role requires experience with Forescout, DLP, SIEM, malware detection, WAF, IDPS, Windows and Linux systems, networking, scripting, and enterprise security operations.

Leads security solution strategy and technical engagements for global enterprise customers. Advises technical decision-makers, drives secure cloud adoption, designs architectures, leads demonstrations and proof-of-concepts, coaches technical sellers, and develops solution roadmaps. Partners with account teams, product and engineering groups, and external partners to deliver integrated Microsoft security solutions across cloud, hybrid, and on-premises environments.

Lead technical pre-sales engagements for cybersecurity, cloud, compliance, and AI solutions. Deliver presentations, demonstrations, workshops, architecture sessions, and production-ready pilots. Design solutions involving XDR, zero trust, cloud security, Microsoft Purview, data protection, governance, privacy, and regulatory compliance. Coordinate internal and external partners, resolve technical and competitive blockers, influence strategy, and guide implementation across Microsoft and non-Microsoft environments.

Designs, deploys, and maintains enterprise security platforms for vulnerability management, patching, endpoint management, and privileged access. Engineers asset discovery, remediation workflows, access controls, automation, monitoring, and integrations across infrastructure and cloud workloads. Troubleshoots platform outages, agents, operating systems, networks, certificates, credentials, APIs, and production services. The role also owns incident response, root cause analysis, upgrades, backup validation, runbooks, and support handoff.

Leads consulting projects involving Cisco network security and enterprise networking solutions. Designs, implements, migrates, troubleshoots, and integrates Secure Access, SD-WAN, firewalls, identity platforms, XDR, and related technologies. Authors technical designs and migration plans, manages workstream delivery, risks, documentation, testing, and client relationships. Supports presales, estimates, statements of work, vendor engagement, mentoring, certifications, and solution development. Requires strong Cisco security expertise and up to 50% client travel.

Provides network security engineering support for network transformation and operations. Designs, deploys, configures, and troubleshoots routing, switching, firewalls, wireless, cloud, data center, and enterprise security environments. Leads incident remediation, documents operational procedures, supports roadmap development, communicates with management and stakeholders, and participates in on-call rotations. Requires extensive networking and security experience, customer-facing expertise, cloud knowledge, and familiarity with major networking and security platforms.

Lead the architecture, development, security, integration, modernization, and technical governance of enterprise Salesforce platforms. Design data models, APIs, identity and access controls, automation, reporting, and cloud integrations. Support migrations, testing, deployments, CI/CD, DevSecOps, security assessments, and remediation. Establish standards, mentor technical teams, and collaborate with business, cybersecurity, infrastructure, and government stakeholders.

Audit and harden Injective’s Cosmos-SDK chain, EVM contracts, integrations, and cross-chain components. Responsibilities include threat modeling, vulnerability remediation, security tooling, fuzzing, invariant testing, static analysis, monitoring, upgrade reviews, incident response, and security reporting. The role requires strong Go and/or Solidity skills, blockchain and DeFi expertise, cryptography knowledge, and experience auditing blockchain or DeFi protocols.

Leads hands-on cybersecurity and DevSecOps engineering for VA cloud platforms. Responsibilities include remediating vulnerabilities and NIST control deficiencies, securing AWS infrastructure and CI/CD pipelines, implementing automated security gates, managing secrets and configurations, improving monitoring, and supporting RMF evidence and incident response. The role provides technical security leadership, collaborates across engineering and security teams, and participates in a 24/7 on-call rotation.

Designs, deploys, and operates security platforms across endpoints, cloud, identity, email, privileged access, and GitHub. Administers CrowdStrike, SIEM, PAM, Mimecast, AWS, Microsoft 365, and GitHub security controls; develops detections, automation, and SOAR workflows; investigates threats; secures cloud and CI/CD environments; and supports vulnerability management, incident response, audits, documentation, and on-call operations in a regulated environment.