Top Senior Cyber Security Jobs in Dallas, TX

Serve as the cybersecurity SME for the generation fleet: lead segmented architecture deployments and vulnerability remediation, develop fleet-wide standards, oversee compliance audits, lead incident root-cause analysis, build dashboards/metrics, and represent cybersecurity on capital projects and plant upgrades.

Serve as primary SIEM/SOC escalation point: investigate and triage network security events, document findings, communicate with stakeholders, tune detections, oversee threat and vulnerability management, implement automations with platform teams, and lead brand collaboration calls. Provide incident response, threat intelligence analysis, and occasional on-call support across a global enterprise.

Serve on the CISO Cybersecurity Architecture team to embed security into Azure-native and hybrid cloud solutions, define reusable security patterns across Microsoft ecosystems, evaluate designs/PoCs, mentor engineering teams on secure coding and cloud-native controls, and drive governed, scalable security architectures that support AI, low-code, and data governance adoption.

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 vulnerability management strategy and execution across cloud and hybrid environments. Own end-to-end vulnerability lifecycle, drive automation, perform data-driven prioritization with advanced SQL, and partner with engineering, risk, and incident response teams. Provide hands-on engineering, on-call support, mentoring, and offensive security research to reduce exposure and improve operational reliability.

Lead Oracle Identity and Access Management implementations: consult on business processes and architecture, develop/lead Oracle IDAM work, integrate Active Directory, manage SDLC deployments, perform identity administration, reconciliation and reporting, handle environment migrations and audit log retention, and coordinate stakeholders and offshore teams.

Lead security architecture design, implement and troubleshoot firewall and network security solutions, operate FireMon policy optimization, provide Level 2-3 support, handle work orders/change requests/incidents, and deliver on-site/remote consulting and 24x7 response for critical incidents.

Analyze system architectures and develop security requirements to enforce client policies and standards. Manage multiple fast-paced projects, identify and document security risks with threat analyses and proposed controls, and communicate findings clearly to stakeholders.

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.

Secure enterprise information by monitoring, implementing, and reviewing security systems. Identify and remediate threats and vulnerabilities, perform risk assessments, develop global security strategies, and implement security policies and controls. Focus on network security, multi-OS environments, and McAfee ePolicy Orchestrator operations across a global enterprise.

Lead network security architecture and firewall projects, implement and operationalize FireMon policy optimization, provide L2-L3 support and 24x7 response for priority incidents, handle work orders, change requests, and customer-facing consulting engagements.

Lead security architecture design and implementations, provide L2-L3 support and 24x7 incident response, manage work orders/change requests, perform on-site technical implementations and client consulting, and ensure delivery of enterprise security solutions.

Senior Systems Engineer responsible for auditing network security compliance, designing and supporting network infrastructure, and hands-on implementation/configuration. Requires deep Windows and IIS administration, Active Directory expertise, and experience with VPNs, firewalls, load balancers, routing, and Ethernet technologies.

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.

Perform full life-cycle RMF/DIACAP Assessment & Authorization (A&A) activities to support DoC systems achieving ATO. Conduct security assessments per NIST SP 800-53, manage risk registries, provide configuration and vulnerability management guidance (HBSS/ACAS, IAVM), produce A&A documentation (STIG/IAVA, eMASS), and recommend mitigations to leadership.

Contract SAP Security consultant role requiring hands-on experience with SAP GRC 10. 3-month engagement (possible extension) based in Plano, TX. Must have 5–7 years of relevant experience and strong communication skills. Start date around May 1.

Lead complex, consultative enterprise sales to $1B+ organizations by engaging CISOs/CIOs/CFOs, managing 6-12 month multi-stakeholder deals, driving platform adoption, partnering with Solutions, Services and channel partners, and consistently exceeding revenue and margin targets using methodologies like MEDDPICC.