Top Senior Cyber Security Jobs in Houston, TX

Develop, implement, and maintain security policies and controls mapped to NIST CSF; manage policy and compliance workflows in ServiceNow IRM; perform risk assessments and gap analyses; support audit readiness and vendor assessments; produce dashboards and reports; lead security awareness and AI governance training; mentor junior analysts; collaborate with IT, risk, compliance, and business teams to drive remediation and policy adoption.

Sell IonQ's quantum-security solutions to SLED accounts by identifying and closing opportunities around quantum-safe encryption and post-quantum readiness. Manage full sales cycle, engage CISOs and IT leaders, collaborate with technical teams, maintain pipeline in CRM, and represent the company at industry events. Drive strategic, solution-oriented deals in complex, consultative environments.

Design, implement, and improve security architecture across AWS and Azure. Harden identity and privilege models, integrate CNAPP/CSPM and AppSec into SDLC, drive vulnerability and patch management, enable SIEM telemetry, implement IAM/PAM/least-privilege, and promote zero trust across engineering and product teams.

Lead cross-functional security initiatives: automate security tasks and incident response, manage HITRUST/SOC2/PCI assessments and remediation, evaluate and optimize security tools, secure software development (GitHub, code scanning, AI code), respond to audits, deliver training, and investigate and remediate security incidents to advance program maturity.

Lead multiple product security engineering teams to design, implement, and operate security controls across Allstate's technology ecosystem. Architect secure digital products, drive DevSecOps, CI/CD, cloud-native and application security best practices, integrate IAM/SIEM/vulnerability management, influence stakeholders, manage security product roadmaps, mentor engineers, and own production security KPIs and compliance.

Own and scale Mozillas web bug bounty program, triage and validate incoming vulnerability reports, drive remediation with engineering teams, perform targeted JavaScript and Python code reviews, collaborate with SIRT on incidents, and develop tooling to improve program efficiency and insights.

Manage and grow a security engineering team responsible for product and platform security, embedding security into the SDLC, running red team/adversarial testing, performing hands-on web application pentesting, threat modeling, secure-coding guidance, and defining AI security guardrails.

Lead design, implementation, and management of security infrastructure across on-prem, cloud, and hybrid environments. Drive incident response, threat detection tuning, vulnerability assessments, risk and compliance (HIPAA, PCI-DSS, NIST, ISO 27001), security policy development, and security training. Collaborate with IT, DevOps, legal, and procurement to integrate security into SDLC and vendor selection.

Build and operate an internal Red Team to continuously find vulnerabilities across protocol, consensus, bridges, and execution clients. Develop Rust-based fuzzers and custom security tooling, simulate economic attacks on testnet, analyze game-theoretic risks (MEV, staking), and partner with engineering teams to review critical architecture and mitigate exploits.

Maintain and mature Mozilla's ISMS, support ISO 27001 and SOC 2 Type 2 audits, author compliance narratives, track remediation, lead policy program, scale compliance for products, and partner with cross-functional teams to drive control ownership and audit readiness.

Design and implement software security solutions for diabetes care and digital health products. Lead product security risk assessments, vulnerability remediation, secure coding practices, static analysis, and incident response. Mentor engineers, run security reviews, and ensure compliance with regulated medical software development and quality management systems.

Manage and lead engineering teams building endpoint security software: define and execute roadmaps, oversee SDLC and ISMS compliance, remove blockers, drive secure coding, coordinate with product and architects, recruit and develop staff, and manage budgets and operations.

Build and maintain data pipelines, metrics, and dashboards to quantify consumer product security risk. Perform hands-on analytics into device and authentication signals, shape risk measurement strategy, partner with product and security teams, and influence leadership reporting. Drive a unified, scalable data foundation that enables cross-team alignment and proactive risk detection.

Hands-on senior IT security systems administrator responsible for administering Google Workspace and Microsoft 365, managing Windows and Mac endpoints via MDM, operating identity and SSO/MFA systems, and running security tooling (EDR, DLP, SIEM, email security). Owns threat monitoring, incident response, vulnerability and patch management, compliance evidence, DR planning, security reporting, and vendor relationships for a remote distributed workforce.

Lead strategy, execution, and operational excellence for multiple security engineering domains. Build and develop leaders, deliver multi-year roadmaps, drive platform evolution, automation, vendor strategy, and cross-functional programs to reduce risk and scale secure operations.

Maintain and mature Mozilla's ISMS and support ISO 27001 and SOC 2 Type 2 audit programs. Author system descriptions and policies, manage risk treatment plans, track remediation, support internal audits, and partner with Engineering, Legal, Privacy, and Product to drive control ownership and audit readiness.

Own and scale Mozilla's web bug bounty program, triage and validate incoming reports, drive vulnerability remediation with engineering teams, perform targeted code reviews (JS/Python), collaborate with SIRT on incidents, and develop tooling to improve triage and program insights.

Support DoD modernization engagements by implementing and validating secure configurations, supporting ATO/eMASS activities, producing operational runbooks, coordinating cutovers and testing, remediating vulnerabilities, and automating operations (scripting/AIOps) with emphasis on mainframe/legacy environments and DoD security frameworks.

Hands-on offensive and defensive security engineer for a Layer 1 blockchain: audit Move modules, Solidity and Rust code, build fuzzers/static analysis/formal-verification tooling, threat-model protocol layers, run bug bounty triage, lead incident response, and partner with engineers and external auditors to harden the network against sophisticated adversaries.

Lead and deliver information security governance, risk, compliance, and privacy assessments; develop security programs, roadmaps, policies and executive presentations; advise C-level clients; perform PCI and CMMC advisory services; mentor staff and produce remediation recommendations and reports.

Lead enterprise security strategy for AI and cloud: design secure AI/ML architectures, enable secure cloud migrations (on‑prem to AWS/Azure), implement zero‑trust and IAM, secure data pipelines/APIs, establish governance and compliance (HIPAA/NIST), mentor teams, and drive audit‑ready security controls across AI and hybrid environments.

Design, implement, and monitor internal security tooling and controls across endpoints and infrastructure. Enforce endpoint configurations via MDM, manage identity and zero-trust SSO solutions, automate security operations with IaC and scripting, perform log analysis and incident response, and collaborate with client platform and IT teams to harden systems and support threat hunting.

Support cybersecurity engineering for a VA healthcare modernization project: secure AWS and hybrid environments, support RMF/ATO and compliance, configure and monitor AWS security services, produce SSPs/POA&Ms/SOPs, perform vulnerability assessments and DISA STIG hardening, integrate security into DevSecOps and CI/CD, and collaborate with stakeholders on security controls and remediation.

Lead design and management of security architecture (SIEM, EDR, DLP, firewalls, VPNs), drive incident response and detection tuning, perform vulnerability and risk assessments, support compliance/audits (HIPAA, PCI-DSS, NIST, ISO 27001), and provide cross-functional security guidance and training.

Manage and execute RCA's cybersecurity program: lead audits and vendor risk assessments, run security awareness/phishing programs, oversee vulnerability remediation and MDM, ensure HIPAA/HITECH/NIST compliance, build security reporting, and coordinate incident response and tabletop exercises.