Senior Security Engineer
Senior Security Engineer conducts offensive security testing on AI systems, cloud infrastructure, and applications at a fintech startup. Collaborates with engineers to remediate vulnerabilities and builds automated tools, requiring 6+ years experience in red teaming and AWS security.
About the job
Responsibilities
- Probe AI systems, infrastructure, and applications for weaknesses through red teaming and penetration testing.
- Work directly with engineers to remediate vulnerabilities.
- Develop detection and response capabilities for threats.
- Analyze AI-specific risks like training pipelines, inference systems, model architectures, and supply chain threats.
- Build automated security testing tools.
- Contribute to security metrics and raise engineering team's security awareness.
Requirements
- 6+ years of professional security engineering experience.
- Deep hands-on experience with offensive security: red teaming, penetration testing, or vulnerability research.
- Experience assessing cloud infrastructure security, preferably AWS (EC2, ECS, RDS, S3, IAM).
- Ability to develop custom tools and automation (Python, Go).
- Experience analyzing and exploiting web application vulnerabilities.
- Strong understanding of threat actor techniques, tactics, and procedures (TTPs).
- Ability to translate technical findings into actionable recommendations.
- Bachelor's degree in Computer Science, Cybersecurity, or equivalent.
Nice-to-Haves
- Experience with AI/ML system security: training pipelines, inference systems, model architectures.
- Familiarity with AI-specific attacks: prompt injection, model poisoning, data extraction.
- Fintech or financial services security experience.
- Experience building security metrics and reporting.
- Startup experience.
- Certifications: OSCP, OSCE, GXPN.
Benefits
- 100% employer-covered medical insurance for employees (75% dependents), dental, vision.
- 401(k) retirement savings.
- Paid time off + federal holidays.
- Parental leave.
- Meals and fitness stipend.
- Equity and career growth opportunities.
Skills
AWS, Python, Go, Penetration Testing, Red Teaming, Web Application Security, Ai/Ml Security, Cloud Infrastructure, Prompt Injection, Model Poisoning
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