Senior Cloud Security Engineer

Delta Exchange is hiring a Senior Cloud Security Engineer in Security (Remote).

About Delta Exchange

Delta Exchange is a high-performance cryptocurrency derivatives exchange offering futures, options, interest rate swaps, and calendar spreads on Bitcoin, Ethereum, and 100+ digital assets. Delta trades ~$0.5B a day and provides institutional-grade risk management and deep liquidity.

About the Role

You'll be the dedicated security engineer at a high-volume derivatives exchange (~250 people, 50-100 person dev team). All infrastructure is AWS. DevOps builds it; you make sure it's secure and can prove it. You'll be hands-on - reviewing Terraform PRs for security gaps, building automated drift detection, writing SIEM rules, and owning the credential lifecycle.

Key Responsibilities

• Verify that infra implementations match the security model continuously, not quarterly.
• Build automated compliance checks and drift detection (AWS Config, Steampipe, custom tooling).
• Review Terraform PRs for IAM, SCP, and network security gaps before they hit production.
• Own credential lifecycle: rotation, PAM, JIT access, session recording.
• Write and tune detection rules in OpenSearch SIEM.
• Build evidence dashboards that prove security posture to non-security leadership.
• Evaluate security tooling (build vs buy) and own recommendations with documented tradeoffs.

Qualifications & Requirements

• 5+ years in infrastructure or security engineering, with at least 2 years focused on AWS security.
• Deep practical understanding of IAM policy evaluation logic, permission boundaries, and cross-account access patterns.
• Demonstrated experience building automated security checks that run in production.
• Proficiency in reading and critically reviewing Terraform code for security posture.
• Experience operating PAM tooling or credential rotation in production.
• Comfortable owning a security domain end-to-end in a fast-moving fintech or exchange environment.