Top Senior Cyber Security Jobs in Houston, TX

Design, implement, and administer security architectures and controls; conduct risk assessments, penetration tests, and forensic analysis; support compliance (SSAE16, FISMA, ISO27001, NERC/CIP); respond to audits and incidents; recommend remediation and disaster recovery actions; lead select security projects and provide hands-on support for SIEM, IDS/IPS, DLP, IAM, vulnerability scanning, and related tools.

Serve as the technical lead and sales engineer for security solutions, supporting regional sales to qualify opportunities, design multi-vendor security architectures, author RFP responses, create BOMs/SOWs, and present solutions to customers and executives. Mentor junior staff, maintain OEM certifications, and collaborate with delivery teams to ensure successful implementation and customer satisfaction.

Advise cloud, IAM, and engineering teams on secure configurations, architecture reviews, CSPM remediation, logging/monitoring, and incident response for primarily Azure (plus AWS/GCP). Support audits, documentation, ISO27017 activities, and participate in on-call security rotations.

Designs, implements, and maintains enterprise identity and access management (AD DS, Entra ID, SSO, MFA). Architects RBAC, JIT, conditional access and non-human identity governance. Leads PKI, privileged access, detection engineering, identity incident response, automation (PowerShell, APIs, IaC), and Tier-3 support. Collaborates across security, DevOps, and infrastructure, authors documentation and runs on-call rotation.

Manage and operate network security tools (Juniper firewalls, McAfee ePO, WSUS), administer Windows/Linux systems, analyze security events from firewalls/IDS/HIPS/AD/syslog, test and validate intrusion detection rules, investigate intrusion events, and support ICS/SCADA and process control network security.

Manage PCI/security compliance for retail POS environments: govern programs, oversee IRM deliverables, validate encryption/security testing, document designs and operations, review technical configurations, verify vendor PCI implementations, and coordinate with Trustwave.

Serves as the endpoint security subject-matter expert for support, Sales Engineering, and Customer Success. Diagnoses complex Windows and macOS endpoint issues, analyzes telemetry and logs, troubleshoots integrations with EDR, DLP, and MDM products, and provides prioritized customer recommendations. Partners with Engineering and QA on defect investigation and validation, maintains lab capabilities, and creates runbooks and documentation. The role also enables field teams to explain endpoint findings and improve customer outcomes.

Own Tribe’s corporate security, compliance, AI governance, and client-facing security programs. Lead SOC 2 and future certification efforts, enterprise security reviews, risk management, security controls, incident response, vendor risk, and Trust Center operations. Establish governance for AI agents, assistants, model providers, and subprocessors while partnering with engineering on architecture reviews, threat modeling, secure SDLC, data flows, and production readiness. Translate customer requirements into scalable security controls and operating processes.

Serve as the senior network-security subject-matter expert for support, sales engineering, and customer success. Review firewall rules, segmentation, controls, and product findings; troubleshoot integrations across enterprise network-security platforms; diagnose issues using packet captures, flow data, logs, and protocol behavior; and provide actionable root-cause guidance. Partner with Engineering and QA on defects and fixes, maintain network test capabilities, and author runbooks and documentation. Coach sales engineers and help harden the product through escalations and feedback.

Build and maintain cloud security improvements across AWS/GCP, Kubernetes, and CI/CD environments. Design detection and response capabilities using SIEM, EDR/MDR, cloud-native detections, and CNAPP tools. Investigate and respond to security incidents end to end, develop detection logic and playbooks, and create security tooling and automations using Python, Terraform, and infrastructure-as-code. The role also supports endpoint security and secure DevOps practices.

Lead Fireworks AI’s security operations function, including CrowdStrike deployment, detection engineering, incident response, SOAR workflows, threat intelligence, playbooks, metrics, and cross-functional incident coordination. Build and tune detections, operationalize response processes, run post-incident reviews, and improve coverage against MITRE ATT&CK. The role begins as a hands-on individual contributor and may grow into team leadership, including hiring and expanding 24/7 coverage and capabilities such as cloud detection engineering and red/purple team operations.

Own and mature Neumo’s Governance, Risk, and Compliance program, including SOC 1, SOC 2, and PCI DSS audits, risk registers, data governance, control automation, vendor assessments, and exception processes. Manage 1–2 direct reports, coordinate remediation, leverage AI/LLM tools, participate in incident management, and communicate compliance posture and risk trends to executives and the board.

Lead security assessments and controls across cloud-hosted applications, APIs, mobile (Flutter), CI/CD, and infrastructure. Implement and harden shared security tooling (dependency/secret/static/container scanning), review IAM and privileged access, support incident readiness and monitoring, evaluate SRE/recovery changes for security impact, and coordinate remediation with system owners. Establish security policies, automation, and review triggers to integrate practical controls into engineering workflows.

Own technical pre-sales for enterprise AI security: lead discovery, design demos, execute end-to-end POCs, partner with AEs, surface product feedback, and advise customers on complex technical decisions.

Lead product marketing for Keeper's cybersecurity products: define messaging, positioning and use cases; execute cross-functional launches; create content and SEO-optimized assets; coordinate webinars and partner co-marketing; gather customer feedback and conduct market and competitor research to drive awareness and pipeline.

The Senior Application Security Engineer ensures the security of systems and data by monitoring vulnerabilities, responding to incidents, and promoting security best practices within the organization.

Lead security initiatives by establishing secure development practices, conducting security reviews, as well as managing threat modeling and security assessments.

Lead Wikimedia Foundation’s product security strategy, prioritize security and privacy engineering initiatives, develop platform interventions against threats, strengthen organizational security culture, and communicate with Wikimedia communities. The role partners with cross-functional and departmental leaders on information security, represents the Foundation to volunteers, and applies AI-based tools to security analysis, code review, and software engineering. Prior product management experience is not required, but strong technical, security, communication, and online-community experience are important.

Supports client engagements focused on cryptographic risk, post-quantum readiness, encryption modernization, PKI, and key lifecycle management. Responsibilities include cryptographic asset discovery, inventory development, risk analysis, PKI and TLS assessments, PQC migration planning, remediation tracking, standards alignment, client workshops, documentation, and presenting findings to technical stakeholders.

Lead the engineering modernization of enterprise data protection and DLP capabilities across cloud, SaaS, endpoints, email, and collaboration platforms. Build automated Policy-as-Code workflows, CI/CD pipelines, reusable controls, integrations, detection logic, guardrails, and operational metrics. Partner with technical, compliance, privacy, legal, and business teams to improve security effectiveness, reduce false positives, automate governance, investigate events, and demonstrate measurable risk reduction.

Lead pre-sales security architecture engagements by designing and validating defense-in-depth solutions across hybrid, cloud, application, identity, endpoint, network, and data environments. Conduct security assessments, create remediation roadmaps, integrate security platforms, and support DevSecOps, SOC, detection engineering, incident response, compliance, and risk programs. Collaborate with sales, engineering, clients, and executive stakeholders to communicate technical trade-offs and deliver scalable enterprise security strategies.

Design, develop, and maintain secure Linux endpoint privilege-management capabilities across Rust, C, and .NET. Build kernel-facing agents, PAM modules, privileged services, authentication and authorization workflows, systemd services, and Linux packages. Troubleshoot low-level security and execution issues involving permissions, SELinux, AppArmor, and race conditions. Collaborate with engineering and QA teams on architecture, testing, production support, and cross-platform functionality while using AI-assisted development tools.

Lead alliance and technical product marketing: build joint positioning and go-to-market enablement with strategic partners, own competitive intelligence and technical differentiation, create content and launch programs that drive pipeline and inform product and GTM strategy.

Lead design and implementation of security controls, drive audit readiness across multiple frameworks (FedRAMP, SOC2, ISO, CMMC), gather audit evidence, liaise with auditors and government officials, translate compliance into practical controls with engineering/product teams, draft policies, automate compliance processes, and represent the program in customer security reviews.

Design and execute integration and security-focused test plans for PAM and Keeper Secrets Manager. Validate integrations across cloud providers, IAM, CI/CD, and OS/databases; perform reliability and security testing; analyze logs and defects; contribute to automation and collaborate with engineering, product, and security teams to ensure reliability and compliance.