Assembled
Security Engineer
$180K–$280K
New York City, NY +1 · On-site · Full-time · Posted Sep 18, 2026
- Location
- New York City, NY
San Francisco, CA - Experience
- 3+ years of hands-on application security experience.
- Visa sponsorship
- For U.S. applicants, Assembled participates in E-Verify to confirm work authorization using Form I-9 information. For U.K. applicants, Assembled conducts a Right to Work check before employment.
About the job
Lead application security across Assembled’s SaaS and AI products by setting security practices, shaping architecture, and managing vulnerabilities through remediation and verification.
What you'll do
- Lead threat modeling, secure design reviews, vulnerability management, and application security testing.
- Automate security controls in engineering workflows and CI/CD; train engineers and coordinate incident response.
- Support customer security discussions and technical assurance work, including SOC 2, while shaping the security roadmap.
What they ask for
- 3+ years of hands-on application security experience, including threat modeling, security code reviews, and vulnerability remediation.
- Experience writing and reviewing production code.
- Active use of AI tools for security investigation, testing, or remediation, with ability to evaluate their limitations.
Nice to have
- Experience securing large-scale, multi-tenant SaaS applications or AI/ML applications.
- Familiarity with the listed tech stack, enterprise compliance requirements, or being an early security hire.
Pay
$180K – $280K USD base salary
Tools
TypeScript, React, Go, Python, PostgreSQL, Redis, Snowflake, AWS
AI focus
Secures AI products and customer-facing AI agents, including adversarial detection and protections against prompt injection, unauthorized tool use, and adversarial inputs; uses AI tools for security investigation, testing, or remediation.
Model-written summary · the original posting is authoritative