Incident-Response Security Engineer: Lead & Automate IR

Replit; United States; Remote; USD 130,000 - 180,000; Full time

Job summary

Replit is seeking a Security Engineer with deep incident response experience to defend our cloud-native platform. You’ll lead investigations from first signal to root cause, coordinate containment across Security, SRE, and Engineering, and inform stakeholders as incidents unfold.

You’ll build scripts and tooling to speed triage, evidence collection, and containment, and turn findings into stronger detections, playbooks, and platform hardening for future incidents.

Qualifications

• Proven experience leading or serving as technical lead on security incidents in a cloud or SaaS environment.
• Strong hands-on investigation skills with SIEM, cloud audit logs, and log-based analysis.

Responsibilities

• Incident Response: Serve as incident commander or technical lead for security incidents, from detection and triage through containment, eradication, recovery, and post-incident review.
• Coordinate response across Security, SRE, Engineering, Legal, and leadership. Drive decisions under pressure and keep a clear record of actions taken.
• Communicate incident status, impact, and risk clearly to technical and executive audiences.
• Participate in and help shape the security on-call rotation.
• Investigation Forensics: Investigate suspicious activity across cloud infrastructure, containers, identity systems, and application layers using SIEM, Cloud Logging, telemetry, and host and container artifacts.
• Determine scope, root cause, attacker behavior, and blast radius for confirmed incidents.
• Quickly assess whether emerging threats (0-days, active exploitation campaigns, bug bounty findings, customer reports) apply to Replit, and whether we're already affected.
• IR Automation Tooling: Build scripts, automations, and tools (Python, Go, Bash, or directly on Replit) that speed up response, such as automated enrichment, evidence collection, credential and session revocation, workload isolation, and alert triage.
• Develop and maintain response playbooks and runbooks, and automate them where possible.
• Integrate response workflows with SIEM, SOAR, ticketing, and chat tooling to cut time-to-contain.
• Detection Continuous Improvement: Turn incident findings into new or improved detections, logging coverage, and visibility.
• Lead blameless post-incident reviews and drive remediation items to completion.
• Run tabletop exercises and simulations to test readiness and find gaps.

Skills

Incident response leadership

SIEM analysis

Cloud security SaaS

Job description

Replit is seeking a Security Engineer with deep incident response experience to defend our cloud-native platform. You’ll lead investigations from first signal to root cause, coordinate containment across Security, SRE, and Engineering, and inform stakeholders as incidents unfold.

You’ll build scripts and tooling to speed triage, evidence collection, and containment, and turn findings into stronger detections, playbooks, and platform hardening for future incidents.