Senior Security Engineer

### About Crexi

Commercial real estate is one of the largest asset classes on earth and one of the last to go digital. Deals still get done over email threads, PDFs, and relationships nobody can search for. Crexi is the exchange betting that doesn't have to be true anymore: we're building the platform where an entire industry finds, evaluates, and closes deals, and we're betting hard on AI to get there faster than anyone thought this industry could move. There's no playbook for turning a trillion-dollar, relationship-driven industry into a modern marketplace which means the people building it get to write it.

About the Role

The Senior Security Engineer designs, implements, and maintains security controls across Crexi's systems. This role serves as a subject matter expert on security tooling and practices, leads remediation of complex vulnerabilities, and shares expertise with less experienced engineers. The Senior Security Engineer partners with engineering and IT to embed security into the full software lifecycle.

What You'll Do

• Independently designs and implements security controls and tooling across cloud (AWS) and on-prem environments.
• Leads execution of the vulnerability management program, prioritizing and driving remediation across teams.
• Serves as subject matter expert on SIEM, SAST/DAST tooling, and IAM practices.
• Partners with engineering teams to embed security requirements into the software development lifecycle.
• Leads investigation and response for security incidents, including root cause analysis.
• Mentors less experienced engineers on security tooling and best practices.
• Supports audit readiness, gathering and organizing evidence for SOC 2 and ISO 27001.
• Identifies gaps in existing controls and recommends improvements.

Qualifications

• Required: Bachelor's degree in Computer Science, Cybersecurity, or a related field, or equivalent practical experience.
• Required: 5+ years of security