Remote Senior Product Security Engineer - AI-Driven

Openkrill; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

Close is seeking a Product Security Engineer to join our remote engineering team. You will identify vulnerabilities across backend and frontend surfaces, reproduce issues, and drive secure fixes in collaboration with Infrastructure and Security & Trust leads.

The role emphasizes automation, AI-assisted review, and secure cloud practices. The ideal candidate writes production-grade code in Python or TypeScript, can threat-model designs, and maintains rigorous standards for security testing,

Qualifications

• Strong Python or TypeScript experience.
• Ability to threat-model designs and review code.
• Experience with vulnerability management and remediation.
• Familiarity with SAST/DAST, secrets scanning, and cloud security tooling.

Responsibilities

• Own vulnerability intake and remediation across backend, frontend, and integrations.
• Build safe proofs-of-concept and drive fixes to production.
• Collaborate with Infrastructure and Trust teams on cloud security and compliance goals.
• Automate security testing and integrate with engineering workflows.
• Lead or support bug bounty program coordination.

Skills

Python

TypeScript

Threat modeling

Security testing

Automation

AI-assisted review

Full-stack

Tools

Docker

Kubernetes

AWS

Job description

Close is seeking a Product Security Engineer to join our remote engineering team. You will identify vulnerabilities across backend and frontend surfaces, reproduce issues, and drive secure fixes in collaboration with Infrastructure and Security & Trust leads.

The role emphasizes automation, AI-assisted review, and secure cloud practices. The ideal candidate writes production-grade code in Python or TypeScript, can threat-model designs, and maintains rigorous standards for security testing,