Senior Security Engineer (Cloud SIEM)

TL;DR

Senior Security Engineer (Cloud SIEM): Developing scalable threat detection and AI-assisted security workflows for cloud-native environments with an accent on detection-as-code and high-fidelity telemetry analysis. Focus on designing agentic SOC capabilities, researching emerging attacker techniques, and automating investigation and response workflows.

Location: Hybrid in Lisbon, Portugal

Company

Datadog is a leading observability and security platform providing unified visibility across the technology stack to manage complexity at scale using AI.

What you will do

• Research attacker techniques and emerging threats to translate findings into scalable security capabilities.
• Design AI-powered investigation, threat hunting, and response workflows for agentic SOC capabilities.
• Own the full lifecycle of threat detections and automated security workflows from research to deployment.
• Develop high-fidelity detection content across cloud platforms, SaaS, identity systems, and endpoints.
• Collaborate with Product, Engineering, and Security Research teams to influence the platform roadmap.
• Mentor security engineers and drive efficiency through automation and rapid prototyping.

Requirements

• Strong experience in detection engineering, incident response, threat hunting, or defensive security.
• Proficiency in securing public cloud environments (AWS, Azure, or GCP) and cloud-native tools like Kubernetes, Docker, and Terraform.
• Experience with detection-as-code methodologies and large-scale security telemetry analysis.
• Proficiency in Python, Go, or similar languages for automation and tooling.
• Ability to drive initiatives through ambiguity in a collaborative environment.
• Must be based in or able to work in a hybrid setup in Lisbon, Portugal.

Culture & Benefits

• New hire stock equity (RSUs) and employee stock purchase plan (ESPP).
• Comprehensive mental health benefits for employees and eligible dependents.
• Continuous professional development, product training, and dedicated career growth opportunities.
• Supportive environment with mentor and buddy programs.
• Inclusive culture featuring Community Guilds and employee resource groups.