Top Senior Cyber Security Jobs in San Antonio, TX

Own and operate the organisation's accounts, access, and cloud subscriptions; set practical security standards; identify and remediate risks hands-on; manage onboarding/offboarding access across core platforms; partner with engineers and researchers to ensure secure, usable controls.

Manage and perform red and purple team engagements, external/internal penetration tests, wireless/web/mobile/embedded assessments, ransomware readiness and social engineering. Develop tools, incorporate threat intelligence, present findings to technical and executive audiences, and mentor and expand offensive security capabilities. Occasional travel (~10%).

Lead and build vdBA's Managed Detection and Response service line for life sciences: own roadmap, tooling, SLAs, incident response, compliance (SOC 2/HITRUST/ISO), client engagements, and scale the security operations team while integrating security into delivery and sales.

Design, build, and maintain automated API and security test frameworks. Validate authentication, authorization, rate limiting, and error handling. Conduct fuzzing, token validation, access control testing, and integrate tests into CI/CD. Analyze failures, test integrations, ensure API contract adherence, and mentor automation engineers to improve coverage and reliability.

Lead technical discovery and solution design for enterprise identity and privileged access management opportunities. Build reference architectures, guide PoC/PoV engagements, present to executive and technical stakeholders, collaborate with Sales Engineering, Product and Sales leadership, and represent Keeper at customer and market events while staying current on identity security landscape.

Lead Datadog-first security observability and detection engineering: design, scale and tune Datadog Cloud SIEM, log pipelines, detection rules and telemetry. Correlate signals across EDR, cloud and identity, automate detection-as-code, reduce false positives, and build dashboards, monitors and workflows in partnership with Security Ops, SRE and Engineering.

Operate and improve security operations and enterprise controls: incident response, playbooks, endpoint/SaaS/cloud tooling, remediation coordination, access governance, compliance evidence, and automation to reduce risk.

Serve as the ISSO for assigned systems, maintain system security documentation (SSPs, control narratives, POA&Ms), support FedRAMP/GovRAMP/DoD authorization and continuous monitoring, coordinate remediation and assessments with engineering and auditors, support incident response and audit readiness, and track security metrics and evidence.

Lead implementations of Proofpoint Information Protection to meet information protection and compliance objectives. Engage enterprise customers, configure Email/Cloud/Endpoint DLP, conduct DLP and data exfiltration investigations, build playbooks, mentor team members, and document best practices while coordinating cross-functional teams to ensure successful project outcomes.

Lead and own the enterprise SSPM program: implement and manage SSPM platform, onboard SaaS apps, tune controls, integrate with SIEM/SOAR/ITSM/identity, perform threat modeling and risk assessments, drive remediation, support compliance mapping, report metrics, and partner across cyber, IT, risk, and business teams to reduce data exposure and improve SaaS security posture.

Lead design, deployment, and scaling of enterprise DLP across cloud, endpoint, SaaS, and network with a focus on AI-driven automation. Build automated classification, remediation, and workflows, integrate DLP with SIEM/SOAR/identity/cloud, develop policies for regulatory compliance, mentor engineers, and present program insights to leadership.

Design and implement automated cloud security controls across multi-cloud environments. Integrate security into CI/CD pipelines, harden infrastructure and IaC, manage IAM and secrets, advance container and workload security, protect AI/ML systems and data, and support monitoring, detection, and incident response for cloud applications.

Lead and improve ZODL security posture, manage incident response, coordinate external audits, advise staff on operational and personal security, prioritize mitigations, recruit security talent, and collaborate with engineering and research to secure Zcash software and protocols.

Perform advanced offensive security work: conduct complex penetration tests, teach and integrate offensive tradecraft into the AI platform, harden product and company defenses, and collaborate with core engineers to build and ship capabilities that automate red-team techniques.

Lead and execute OT/IoT security assessments, design and implement OT security architectures, perform technical testing, produce remediation recommendations and documentation, and guide organizational change for energy/water/manufacturing clients.

Own product security across the SDLC: threat modeling, secure design reviews, application security testing (code review, SAST/DAST), supply-chain/dependency hardening, CI/CD security, and building automated security tooling and guardrails while partnering with engineering and product.

Own and harden corporate security for endpoints, identity, and SaaS. Implement Zero Trust and device-trust patterns, build automation and tooling, run detection/response for enterprise systems, and serve as the internal security SME for corporate workflows.

Lead cloud and cybersecurity engineering engagements: design and implement multi-cloud security architectures, detect and respond to threats, manage identity and access, enforce compliance baselines (SOC 2, ISO 27001, PCI, HIPAA), secure cloud infrastructure and DevSecOps pipelines, mentor staff, and develop AI-accelerated internal tooling and automation.

Manage and lead cybersecurity advisory engagements: implement GRC programs, assess ITGC and IT risk, develop remediation roadmaps, run incident response tabletop exercises, manage GRC platforms, conduct vendor risk reviews, develop policies/SOPs, mentor staff, and support business development.

Lead delivery of cybersecurity strategy and advisory engagements as the primary client contact. Conduct security and maturity assessments, risk analyses, program roadmaps, workshops, and executive presentations. Mentor junior staff, support scoping/proposals, collaborate with GRC and engineering teams, and contribute to practice development and business development activities.

Lead cybersecurity advisory engagements including building GRC programs, conducting compliance readiness and ITGC assessments, executing remediation roadmaps, directing incident response exercises, performing IT risk assessments, managing GRC platforms, and delivering client-facing recommendations and project management.

Lead design, implementation, and maintenance of enterprise PKI systems. Support certificate lifecycle management (CLM), configure CAs and templates, manage HSMs and RAs, automate processes with Ansible, Terraform, and PowerShell, enforce key-management policies, and troubleshoot certificate/TLS issues to maintain secure operations.

Lead design, deploy, operate, and maintain endpoint security solutions (CrowdStrike, Skyhigh, Symantec DLP, Zscaler). Monitor telemetry into SIEM/SOAR, perform upgrades/migrations, troubleshoot detections, drive automation, evaluation of new tech, and maintain documentation to strengthen endpoint security posture.

Support and coordinate enterprise cyber risk governance: maintain frameworks, policies, control mappings, taxonomies, and reporting. Facilitate assessments, evidence collection, stakeholder coordination, and reporting to senior management and governance forums, ensuring regulatory and audit traceability.

Design, implement, and maintain a cross-platform endpoint security agent (Windows, macOS, Linux) using Go and JavaScript. Build low-level system automation, telemetry collection, secure agent-cloud communication, real-time threat detection, update mechanisms, and monitoring tools. Optimize performance, ensure multi-OS compatibility, and collaborate with security teams on detection rules and compliance checks.