Senior Security Analyst — AI-Driven MDR Lead

OpenKrill; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Artemis is building AI-driven cybersecurity and seeks a Senior Security Analyst to join Apollo, the managed detection and response service. You will lead investigations across cloud, identity, endpoint, and SaaS, decide on cases, and guide customers through resolutions.

You will work with engineers to refine platform capabilities, influence detection engineering, and support rapid response across diverse customer environments. This is a high-impact, 24x7 role.

Qualifications

• 4+ years in security operations at senior or Tier 3 level with decision authority.
• Experience across identity, cloud, endpoint, and SaaS telemetry.
• Familiarity with MITRE ATT&CK and real telemetry patterns.

Responsibilities

• Own the investigation and the decision from pickup to close.
• Reconstruct attacker activity across identity, cloud, endpoint, and SaaS telemetry.
• Containment recommendations with clear impact and reversible steps.
• Prioritize actions by risk and severity to move fast.
• Communicate findings clearly to customers in plain language.
• Hunt for threats with AI-assisted methods and create new cases.
• Help shape Apollo’s standards, workflows, and product integration.
• Collaborate with engineers to improve detection and response capabilities.

Skills

Security operations

SOC

MDR

MSSP

Investigation depth

MITRE ATT&CK

AI-assisted investigation

Customer-facing

Written communication

24x7 shift

Tools

Okta

Entra ID

AWS

Azure

GCP

EDR

Microsoft 365

Google Workspace

Job description

Artemis is building AI-driven cybersecurity and seeks a Senior Security Analyst to join Apollo, the managed detection and response service. You will lead investigations across cloud, identity, endpoint, and SaaS, decide on cases, and guide customers through resolutions.

You will work with engineers to refine platform capabilities, influence detection engineering, and support rapid response across diverse customer environments. This is a high-impact, 24x7 role.