Senior Security Engineer, Detection & Response - Remote

Sezzle; México; A distancia; MXN 1.025.000 - 1.947.000; Jornada completa

Descripción de la vacante

Sezzle is seeking a hands-on Senior Security Engineer, Detection & Response to strengthen security operations across our cloud infrastructure and applications. You will own SIEM/XDR to detect, investigate, and remediate security incidents, lead vulnerability management, and drive long-term fixes with engineering teams.

The role emphasizes incident response, threat hunting, and AI-enabled security automation, reporting to the Director of Information Security.

Formación

• 6+ years of experience in security, software, or infrastructure engineering, with hands-on experience securing cloud-based production systems and working with real-world security challenges
• Experience working with SIEM platforms (e.g., Wazuh, Splunk, ELK) for detection engineering, monitoring, and incident response
• Experience designing and tuning detection rules, reducing alert noise, and improving investigation workflows
• Strong hands-on experience in vulnerability management — scanning, triage and validation of scanner and bug-bounty findings, remediation coordination, and verification
• Strong knowledge of AWS, Linux, and Kubernetes infrastructure, including security architecture and operational best practices

Responsabilidades

• Build, operate, and mature SIEM/XDR capabilities, including log ingestion, detection rule development, alert tuning, and investigation workflows
• Design and implement detection strategies for suspicious activity, including data exfiltration patterns using application and database telemetry
• Extend audit and attribution coverage across the estate — Kubernetes audit logs, database audit logging, SSO and access-path telemetry
• Investigate and respond to security incidents across cloud infrastructure and applications, performing root cause analysis and driving long-term fixes
• Run proactive threat hunts across cloud and identity planes, building agentic hunting workflows that make hunts repeatable

Conocimientos

Security engineering

SIEM

Incident response

Threat hunting

Vulnerability management

AWS

Kubernetes

Cloud security

Herramientas

Wazuh

Splunk

ELK

Snyk

Trivy

Grype

Gitlab

Descripción del empleo

Sezzle is seeking a hands-on Senior Security Engineer, Detection & Response to strengthen security operations across our cloud infrastructure and applications. You will own SIEM/XDR to detect, investigate, and remediate security incidents, lead vulnerability management, and drive long-term fixes with engineering teams.

The role emphasizes incident response, threat hunting, and AI-enabled security automation, reporting to the Director of Information Security.