Infrastructure Engineer III

What You Will Do

First 30 days

• Onboard with your squad and the broader engineering organization
• Learn HackerOne’s infrastructure, tooling, and workflows (AWS, Terraform, Kubernetes, Ruby on Rails, GraphQL, etc.)
• Become familiar with our reliability, security, and incident management practices

By 60 days

• Participate in the on-call rotation with support from teammates
• Take ownership of a scoped infrastructure project and deliver incremental improvements
• Build working relationships across engineering and adjacent functions

Beyond 90 days

• Independently deliver infrastructure changes that improve reliability, performance, or security
• Understand how infrastructure supports product and customer needs, and translate requirements into practical technical solutions
• Contribute to operational excellence through runbooks, automation, and system improvements

Ongoing Responsibilities

• Design, implement, and maintain cloud infrastructure using infrastructure-as-code
• Collaborate with cross-functional partners to execute on infrastructure initiatives
• Participate in an on-call rotation (one week every four weeks) and help maintain system reliability
• Contribute to a positive team culture by sharing knowledge and supporting teammates
• Continuously improve your technical skills and operational effectiveness

Minimum Qualifications

• 3+ years of experience working with Linux-based systems and cloud infrastructure
• Hands-on experience with AWS, Terraform, Kubernetes, Datadog, Cloudflare, and OpenSearch
• Experience operating and supporting production systems in an on-call environment
• Familiarity with modern DevOps tooling and CI/CD pipelines (GitLab CI or GitHub Actions)
• Experience delivering projects with dependencies across technical and non-technical teams
• Strong understanding of reliability, observability, and secure infrastructure practices
• Interest in secure-by-default infrastructure design and compliance requirements
• Clear communicator and effective team collaborator
• Willingness to participate in on-call rotation between 9am–9pm PT / 12pm–12am ET once every four weeks (Sunday–Monday).

Preferred Qualifications

• Familiarity with FedRAMP, SOC 2, or ISO 27001 environments
• Exposure to AI-related infrastructure concerns (e.g., model deployment, data handling, compliance)

Compensation$140,000 to $175,000 (+ equity)

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