Senior Threat Detection Engineer

Grab is Southeast Asia's leading superapp, providing various services such as food delivery, financial management, and ride-hailing.

We are looking for a Senior Threat Detection Engineer to join our Detection Engineering function in Cyber Defence, which is responsible for detecting, managing, and responding to malicious activity across Grab's infrastructure.

Responsibilities

• Research new detections and build new detection capabilities, focusing on Amazon EKS and containerized microservices, AI/MCP and agentic systems security detections, autonomous vehicle/IOT platforms and supporting infrastructure, and other new threats.
• Collaborate with threat intel, red/purple team, incident responders, and platform teams to turn incident insights and threat intel into proactive detections.
• Implement high-fidelity detection rules and analytics across SIEM, EDR, SOAR, and custom detection frameworks.
• Lead the detection lifecycle and tuning, participating in daily detection lifecycle activities, reviewing alert quality, and creating targeted fine-tuning and suppression strategies.
• Support incident response, triaging and investigating alerts, validating detection hypotheses, and delivering emergency detections.
• Produce high-quality detection documentation and present new detections and alerts to Cyber Defence.

Qualifications

• A degree in Computer Science, Software Engineering, Cyber Security or related fields.
• Hands-on security response experience with experience investigating incidents, writing timelines, and driving remediation.
• 3+ years of experience with at least one cloud platform (Azure, AWS, GCP).
• Direct experience working with SIEM, EDR and SOAR platforms in an operational environment.
• Coding skills in at least one general-purpose language (Python/Go).
• Comfortable writing detection and investigation queries in SQL.

Benefits

• Term Life Insurance and comprehensive Medical Insurance.
• GrabFlex benefits package.
• Parental and Birthday leave.
• Love-all-Serve-all (LASA) volunteering leave.
• Confidential Grabber Assistance Programme.
• FlexWork arrangements.