Senior Security Engineer, Detection and Response

HackerOne • Austin, TX

23h • Hybrid

About The Position

HackerOne is a global leader in Continuous Threat Exposure Management (CTEM), leveraging agentic AI solutions and a community of security researchers to continuously discover, validate, prioritize, and remediate exposures across various systems. The company offers solutions like bug bounty, vulnerability disclosure, agentic pentesting, AI red teaming, and code security, trusted by industry leaders. HackerOne emphasizes offensive security as the standard for building trust and resilience against AI-driven adversaries, fostering a culture of customer obsession, transparency, integrity, and collaboration. The Senior Security Engineer, Detection and Response role focuses on rebuilding HackerOne's Detection & Response function with an AI-first approach, prioritizing engineering over triage. This position involves designing and delivering detection and response capabilities for a modern, cloud-native environment by writing code, building AI-powered tooling, and automating workflows end-to-end. The role spans the full detection lifecycle, from identifying observability gaps to deploying high-signal detections and leading incident response, aiming to scale team accomplishments through automation, intelligence, and AI. HackerOne embraces a Flexible Work approach, making this a remote role targeted for candidates within approximately 50 miles of Austin, Texas, to facilitate occasional in-person collaboration.

Requirements

• 5+ years of experience in detection and response, security engineering, or software engineering with a security focus
• Strong software engineering fundamentals with proficiency in Python, Go, Ruby, or similar languages, and experience working in production codebases
• Hands-on experience with cloud environments (AWS preferred), including services such as CloudTrail, GuardDuty, and VPC flow logs
• Experience with log aggregation and analysis platforms (e.g., Datadog, Splunk, ELK) and endpoint detection tools (e.g., SentinelOne, CrowdStrike)

Nice To Haves

• Experience building AI/LLM-powered security tooling or applying AI to detection, triage, or investigation workflows
• Experience with detection-as-code frameworks or building custom detection pipelines
• Familiarity with containerized environments (Docker, Kubernetes, ECS/EKS)
• Experience with threat intelligence, threat hunting, forensics, or attacker tradecraft frameworks such as MITRE ATT&CK

Responsibilities

• Design, build, and maintain detection-as-code capabilities across cloud infrastructure, SaaS applications, endpoints, and identity systems, improving coverage and signal quality through Data-Driven Decision Making
• Build automated investigation and response workflows that replace manual runbooks, leveraging AI First principles to scale triage, enrichment, containment, and remediation
• Develop and deploy AI/LLM-powered tooling to accelerate investigations, reduce alert fatigue, and extend team capacity beyond traditional headcount constraints, embedding AI First practices into daily workflows
• Lead and participate in incident response, including detection, investigation, containment, and retrospectives, applying First Principles Problem Solving to identify root causes and improve long-term resilience
• Partner cross-functionally with engineering and platform teams to expand logging, improve observability, and embed detection capabilities into the development lifecycle
• Continuously improve detection quality by analyzing alert performance, tuning for signal, and building feedback loops between incidents and detections using Data-Driven Decision Making
• Proactively identify gaps in visibility or coverage and translate ambiguous problem spaces into concrete detection and response solutions through First Principles Problem Solving
• Adapt quickly to evolving threats, tools, and priorities, helping the team maintain momentum and effectiveness through Change Agility

Benefits

• Health (medical, vision, dental), life, and disability insurance
• Equity stock options
• Retirement plans
• Paid public holidays and unlimited PTO
• Paid maternity and parental leave
• Leaves of absence (including caregiver leave and leave under CO's Healthy Families and Workplaces Act)
• Employee Assistance Program

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed
• Number of Employees: 1,001-5,000 employees