Top Senior Cyber Security Jobs in Houston, TX

Designs, implements, maintains, and improves cybersecurity controls across enterprise systems, networks, cloud environments, and applications. Deploys and troubleshoots security technologies, responds to incidents, identifies security requirements, supports audits and change management, documents procedures, analyzes risks, and delivers remediation recommendations. Collaborates with architects, project managers, engineers, and stakeholders to protect organizational data and infrastructure while automating repeatable security tasks.

Leads enterprise security architecture by assessing threats, performing application security assessments and threat modeling, reviewing designs, and integrating controls into SDLC and DevSecOps environments. Advises business and engineering stakeholders on secure solutions, remediates vulnerabilities, protects APIs, web applications, and cloud workloads, and improves security processes through automation and standardization.

Designs and advances security architecture for Microsoft’s enterprise productivity environment. The role assesses evolving risk, analyzes systems and telemetry, develops reusable security patterns and tooling, partners with engineering teams on deployment, communicates risk and tradeoffs, and establishes priorities and roadmaps amid incomplete information.

Identify and remediate vulnerabilities across products and AWS infrastructure, respond to security incidents, close security tickets, integrate security controls into CI/CD, review code and infrastructure, support SOC 2 and CASA compliance, and strengthen access management, secrets handling, and cloud hardening.

Conduct advanced application security research across GitLab’s DevSecOps and AI-powered platforms. Identify and exploit novel, systemic, and chained vulnerabilities; develop proof-of-concept exploits, testing methodologies, and research automation; assess AI attack vectors and open-source dependencies; drive remediation and security improvements; advise engineering teams, contribute to roadmaps, mentor researchers, and share findings with the security community.

Design and implement secure architectures across systems, networks, servers, and cloud. Deliver end-to-end security projects, validate client architectures, identify gaps, implement identity, threat protection, data protection, SIEM/XDR, and cloud security solutions, and produce comprehensive documentation and knowledge transfer.

Leads and builds NVIDIA’s AI Safety and Security Engineering team, hiring engineers across platform, security research, evaluation, and vulnerability tooling. Owns the Find, Validate, and Patch roadmap; guides architecture and evaluation trade-offs; partners with security, platform, and evaluation leaders; and communicates engineering progress clearly. The role requires extensive software engineering and engineering management experience, with expertise in complex systems, ML infrastructure, security tooling, or distributed platforms.

Own product and protocol security across Jito’s Solana-based products. Responsibilities include threat modeling, secure design and code reviews, deployment hardening, internal audits, onchain monitoring, bug bounty operations, remediation tracking, AI-assisted security testing, and key and asset risk management. The role requires production software engineering experience, strong application security expertise, security automation skills, and familiarity with Web3, crypto, or DeFi.

Performs cloud security engineering across AWS and GCP, including system hardening, vulnerability remediation, compliance scanning, cloud operations, security tooling, incident response, and troubleshooting across infrastructure and identity layers. Supports FedRAMP, FISMA, and NIST 800-53 environments, participates in a 24×7 on-call rotation, maintains technical documentation, communicates with customers, and mentors junior engineers.

Develops secure, isolated attack scenarios across cloud, on-premises, and hybrid environments. Reproduces vulnerabilities, builds multi-step attack chains, creates automated graders and reward signals, and validates outcomes using system state and telemetry. The role also develops attack variants and benign comparisons to evaluate AI security agents, partnering with threat researchers, AI engineers, and environment engineers.

Lead security reviews, code audits, penetration testing, vulnerability research, and mitigation efforts for Microsoft Windows services. Develop reusable security tools and agents, identify attack vectors and architectural risks, demonstrate exploit impact, and collaborate with product engineering teams to design scalable defenses and improve security investments.

Designs, deploys, and manages enterprise cloud security solutions across AWS and Azure. Responsibilities include automating security controls, managing AWS WAF and CDK rules, improving policies, patching vulnerabilities, implementing DevSecOps practices, assessing cloud applications and APIs, monitoring security posture, analyzing logs, triaging issues, and supporting compliance and risk initiatives.

Architect and engineer multi-tenant SIEM, SOAR, EDR, telemetry, and cloud security platforms for managed security services. Build detection content, automate response workflows, optimize log ingestion, and secure customer connectivity. Lead technical discovery, onboarding, security assessments, remediation planning, escalations, solution design, and customer advisory engagements. Create architectures, runbooks, and documentation while shaping the MSSP technology strategy.

Engineer and operate SIEM and SOAR platforms supporting SOC and MDR services. Responsibilities include log-source onboarding, parsing, enrichment, detection engineering, playbook automation, alert and dashboard development, end-to-end pipeline troubleshooting, vendor escalations, customer onboarding, ingest-volume management, documentation, and platform incident response. The role serves as the technical escalation point and participates in an after-hours on-call rotation.

Monitor emerging vulnerabilities, assess exploitability and business risk, prioritize remediation, and develop vulnerability intelligence frameworks. Implement asset detection and monitoring across cloud and data-center environments, maintain vulnerability management KPIs, communicate security posture to technical and executive stakeholders, use CrowdStrike Falcon capabilities, and build security tooling. The role requires scripting, threat intelligence research, cloud and Linux experience, cross-functional collaboration, and AI-enabled workflow improvements.

Manage security for classified information systems across their full lifecycle, including accreditation, security controls, SSPs, RMF activities, vulnerability remediation, audits, incident response, insider threat coordination, COMSEC, and TEMPEST/EMSEC compliance. Lead security professionals, coordinate with government agencies, conduct training and self-inspections, and ensure systems meet NIST, DoD, SCI, and related regulatory requirements.

Leads the cybersecurity operations program, overseeing monitoring, incident response, vulnerability management, threat intelligence, endpoint security, identity protection, and security controls. Manages security technologies, vendors, incident playbooks, compliance support, dashboards, and on-call processes while protecting regulated healthcare and financial information. Partners with IT, compliance, legal, privacy, risk, and executive teams, and leads and develops security operations personnel.

Leads regional enterprise security sales by serving as a cloud security expert, shaping opportunities, advising account teams, managing executive relationships, and orchestrating technical teams and partners. Conducts architecture reviews, demos, proof-of-concepts, pilots, ROI/TCO analyses, and consultative engagements to promote Microsoft security solutions, Zero Trust adoption, and customer business outcomes.

Conduct manual penetration tests and secure code reviews across web applications, APIs, AWS infrastructure, and AI systems. Develop AI-assisted security tooling, test LLM applications and agents, triage SAST findings, tune detection rules, support security reviews before production, and communicate risks and remediation priorities to engineering teams.

Provides security engineering and architecture expertise for FedRAMP Cloud Service Provider assessments. Reviews full-stack architectures, authorization packages, security controls, policies, assessment reports, vulnerability scans, and penetration tests for compliance with FedRAMP, NIST, FISMA, RMF, and agency requirements. Leads vendor interviews, identifies technical and documentation gaps, supports continuous monitoring, advises government program leaders and CISOs, and provides security recommendations for cloud systems.

Build, secure, automate, and operate AWS and Kubernetes infrastructure while supporting HIPAA and SOC 2 compliance. Responsibilities include Terraform development, CI/CD security, IAM, vulnerability management, observability, SIEM integrations, incident response, infrastructure hardening, scripting, technical documentation, and cross-functional automation. The role also participates in on-call coverage and evaluates new security and infrastructure tools.

Build and scale application security for a SaaS platform by integrating SAST, SCA, DAST, secrets scanning, and container/IaC checks into CI/CD. Partner with engineering and DevOps teams on threat modeling, secure code reviews, vulnerability remediation, incident response, and secure development practices. The role also supports compliance goals and translates security risks clearly to engineers.

Implement and configure SailPoint IdentityIQ and Identity Security Cloud solutions, including identity lifecycle management, access certifications, provisioning, integrations, workflows, rules, and application onboarding. Lead or support IIQ-to-ISC migrations, gather client requirements, create technical documentation, troubleshoot deployments, and support UAT and hypercare. The role also involves client interaction, mentoring junior engineers, and contributing to reusable delivery assets in a remote consulting environment.

Leads security operations and corporate IT for a healthcare technology company handling PHI. Responsibilities include incident response, application and cloud security, IAM, endpoint management, vendor reviews, security policies, compliance support for HIPAA, SOC 2, and HITRUST, and management of three direct reports. The role also builds AI-driven automation tools and workflows for IT and security operations while partnering with executives, engineers, customers, auditors, and compliance leaders.

Monitor, investigate, and respond to global security incidents; lead incident response as an incident commander; develop security alerts, playbooks, automated actions, and escalation workflows; conduct threat hunting and threat intelligence research; improve detection, containment, and post-incident processes; collaborate with stakeholders; and participate in an on-call rotation.