Security Engineer: Cloud, Threat Response & Automation

Fleet AI, Inc.; San Francisco, Northern (CA, KY); Hybrid; USD 300,000 - 400,000; Full time

Job summary

Fleet AI, Inc. is seeking a hands-on Member of Technical Staff, Security Engineer to own the detection and response loop across Fleet’s cloud and corporate systems.

You’ll investigate alerts, lead incident responses, and ship durable remediations that improve the security posture while preserving speed. You will harden foundational security by strengthening access controls, networks, telemetry, and deployment paths, and automate routines to scale the security function across a fast-moving

Qualifications

• Experience owning detection and response, cloud security, and security engineering in production.
• Ability to investigate logs, code, and infrastructure and translate findings into lasting improvements.
• Strong understanding of cloud infrastructure, IAM, networking, logging, containers, and modern app environments.
• Proficient in coding, integrations, and managing changes through versioned infrastructure and configuration.
• Experience using AI tools and agents to build fast, reliable security capabilities.
• Good judgment on blast radius, testing, rollout, monitoring, and rollback.

Responsibilities

• See what matters: build and tune high-signal detections across cloud infrastructure, identity, endpoints, and business systems.
• Lead the response: investigate suspicious activity, contain threats, find root causes, and strengthen security after incidents.
• Turn findings into fixes: trace security reports and vulnerabilities, ship durable remediations, verify effectiveness.
• Harden the foundation: strengthen cloud access, workloads, networking, secrets, telemetry, and deployment paths.
• Automate the function: use agents, APIs, code, and workflows to accelerate detection, investigation, remediation, and verification.

Skills

Detection & response

Cloud security

Infrastructure security

Security engineering

Coding

AI tooling

Risk assessment

Job description

Fleet AI, Inc. is seeking a hands-on Member of Technical Staff, Security Engineer to own the detection and response loop across Fleet’s cloud and corporate systems.

You’ll investigate alerts, lead incident responses, and ship durable remediations that improve the security posture while preserving speed. You will harden foundational security by strengthening access controls, networks, telemetry, and deployment paths, and automate routines to scale the security function across a fast-moving