Role Summary The Senior Security Engineer is a hands-on technical expert responsible for designing, implementing, and operating security technologies in mid-size Enterprise environment. This position focuses on engineering, maintaining, and continuously improving enterprise security controls across identity, endpoint, network, and application security domains. The engineer collaborates closely with infrastructure, networking, and development teams to ensure security controls are seamlessly integrated into enterprise systems and services, thereby strengthening and advancing the organization’s overall security posture. Core Skills & Technical Requirements Identity and Endpoint Security (Advanced–Expert) Strong hands-on experience securing Microsoft enterprise environments, including: • Microsoft Entra ID identity governance and administration • Privileged Identity Management (PIM) implementation and operations • Endpoint and identity protection using Microsoft Defender XDR • Endpoint management and hardening with Microsoft Intune • Data protection and monitoring using Microsoft Purview including: ○ Data Loss Prevention (DLP) ○ Insider Risk Management / Insider Threat monitoring Candidate should be able to design, deploy, and operate these controls, not just administer them.

Privileged Access Management (Advanced-Expert) Deep operational and engineering experience with: • CyberArk Privileged Access Manager Required capabilities: • Vault architecture and deployment • Privileged account onboarding • Session management and monitoring • High availability and disaster recovery • Platform integrations PKI and Certificate Management (Advanced) Experience designing and managing enterprise PKI environments including: • Microsoft Active Directory Certificate Services • Certificate lifecycle management platform (Keyfactor, Secitgo, etc) • TLS certificate automation and renewal processes Experience securing certificates used for: • Web applications • APIs • Internal services • Machine identities Network and Application Security Infrastructure (Advanced–Expert) Hands-on engineering experience with enterprise network security platforms: • F5 BIG-IP Local Traffic Manager (LTM) • F5 Advanced WAF / Web Application Firewall configuration • Load balancing architecture and traffic management • High availability and disaster recovery design for network security platforms • Cisco Secure Access – Web Security Candidates should be able to architect and troubleshoot production-grade deployments. Infrastructure & Networking Knowledge (Advanced) Strong foundational knowledge in: • Enterprise networking (routing, segmentation, firewalls, load balancing) • Windows enterprise environments • Active Directory architecture and security • Authentication protocols and identity infrastructure • VMware ESXi Architecture & operation Security Operations & Threat Defense (Advanced) Strong capability in security operations including: • Threat hunting • Incident detection and response • Incident containment and remediation • Root cause analysis and post-incident improvements Candidate should be capable of leading investigations and coordinating response actions. Application Security (Advanced) Strong understanding of secure application development and application security practices: • Secure coding principles • API security architecture • Authentication and authorization design • Application threat modeling • Integration of security into development pipelines Security Frameworks and Governance Strong working knowledge of security frameworks and control standards including: • National Institute of Standards and Technology (NIST) security frameworks • ISO/IEC 27002 security controls

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Houston, TX
onsite
Temporary / Contract
55 - 65 USD / Hourly
Role Summary The Senior Security Engineer is a hands-on technical expert responsible for designing, implementing, and operating security technologies in mid-size Enterprise environment. This position focuses on engineering, maintaining, and continuously improving enterprise security controls across identity, endpoint, network, and application security domains. The engineer collaborates closely with infrastructure, networking, and development teams to ensure security controls are seamlessly integrated into enterprise systems and services, thereby strengthening and advancing the organization’s overall security posture. Core Skills & Technical Requirements Identity and Endpoint Security (Advanced–Expert) Strong hands-on experience securing Microsoft enterprise environments, including: • Microsoft Entra ID identity governance and administration • Privileged Identity Management (PIM) implementation and operations • Endpoint and identity protection using Microsoft Defender XDR • Endpoint management and hardening with Microsoft Intune • Data protection and monitoring using Microsoft Purview including: ○ Data Loss Prevention (DLP) ○ Insider Risk Management / Insider Threat monitoring Candidate should be able to design, deploy, and operate these controls, not just administer them.
2026-05-18T00:00:00Z

Security Engineer Job in Houston, TX | Robert Half