Principal Information Security Engineer
New
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SentiLinkFintech Identity Verification
Location: United StatesFull-TimePrincipal
Salary220,000 - 280,000 USD per year
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Job Details
- Experience
- 8+ years
- Required Skills
- AWSPythonTypeScriptC++GoRust
Requirements
- 8+ years of experience in security engineering, software engineering with a security focus, or closely related roles
- Proficient in at least one systems language (Go, Rust, C++) and at least one higher-level language (Python, TypeScript)
- Proven ability to design and ship production software end-to-end
- Deep AWS infrastructure expertise, including IAM, EKS, RDS, networking, and managed services
- Demonstrated ability to identify security misconfigurations and vulnerabilities across cloud architectures, application code, and the integrations between them
- Experience conducting or building tooling for penetration testing, vulnerability assessment, or red team activities
- Track record of building security automation and tooling from scratch
- Comfortable operating independently on ambiguous problems without heavy process or oversight
- Strong communication skills and the ability to partner with engineers who are not security specialists
Responsibilities
- Design and build internal security tooling from scratch, including agent-based security tooling, code analysis tooling, dynamic scanning, and security assessment tools
- Identify vulnerabilities across SentiLink's AWS-based stack, including application code, cloud service configurations, and integrations between the two
- Develop AI-assisted and agent-based tooling to scale offensive security testing beyond what a small team can do manually
- Build and maintain security automation that improves detection, response, and remediation across the organization
- Conduct hands-on penetration testing and vulnerability research against SentiLink's infrastructure and applications
- Partner with engineering teams to remediate findings and embed security into the development process without slowing them down
- Participate in the security on-call rotation, including incident response and regular response testing
- Contribute to threat modeling and security design reviews for new systems, with a focus on cloud integrations and identity flows
- Stay current on offensive security techniques, AI-assisted security tooling, and emerging attack patterns relevant to fintech and identity verification
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