Opendoor
Application Security Engineer
Miami, FL · On-site · Full-time · Posted Jun 17, 2026
- Experience
- No years specified.
About the job
Own and improve application security across Opendoor’s products, APIs, infrastructure, and AI-enabled engineering workflows through vulnerability management, security design, and automation.
What you'll do
- Build and operate vulnerability identification, triage, and remediation capabilities, integrating security findings into developer workflows and maturing the HackerOne program.
- Lead threat modeling, security design reviews, and offensive testing; turn findings into secure design standards, rules, and CI guardrails.
- Build AI agents and automated workflows for vulnerability triage, exploit verification, and remediation drafting; partner with engineering teams to harden applications and services.
What they ask for
- Application security or software engineering experience with a security focus; strong skills in at least one of Python, Go, TypeScript, or Ruby, and ability to read and write code across the others.
- Hands-on deployment experience with GitHub Advanced Security, Semgrep, or equivalent security risk detection tools.
- Strong understanding of application and API vulnerability classes, including GraphQL, REST, and gRPC security pitfalls; practical threat modeling skills.
- Experience with cloud and container security on AWS and Kubernetes, including IAM, secrets management, and CI/CD pipeline security.
Nice to have
- Offensive security, bug bounty or coordinated disclosure program experience, or mobile application security review experience.
- Experience securing AI/ML pipelines, agent frameworks, or MCP-style integrations; OSCP, OSWE, or similar offensive certifications.
Tools
Go, Python, TypeScript, Ruby, Terraform, AWS, Kubernetes, Apollo GraphQL
AI focus
Build AI agents and automated workflows for vulnerability triage, exploit verification, and remediation drafting; establish secure-by-default practices for AI-enabled engineering, agents, and MCP integrations.
Model-written summary · the original posting is authoritative