Sr. Application Security Engineer

SentinelOne

6d•$132,000 - $160,000•Remote

About The Position

SentinelOne is seeking a Sr. Application Security Engineer to join their Wayfinder Frontier AI Services team. This role involves providing expert source code assessments for C, C++, Rust, and Java, working with AI-driven code scanning tools, and acting as a trusted advisor to customers. The engineer will validate findings, present results to various audiences, and contribute to the methodology and scaling of the practice. The position is customer-facing and requires a strong software development background and excellent communication skills.

Requirements

5+ years in application security or product security with a strong software development background
A proven track record translating complex findings into technical and executive-level debriefs; excellent written and verbal communication is essential
Experience delivering customer-facing or consulting-style engagements end-to-end, comfortable in a distributed remote organization
Proficiency in at least two of C, C++, Rust, and Java, having previously identified and explained vulnerabilities at the framework level, not just the application level
Proficiency in at least two of C, C++, Rust, and Java, with a strong understanding of vulnerabilities and secure coding methodologies
Strong knowledge of OWASP Top 10, CWE Top 25, and modern authentication infrastructure (SAML, OAuth, OIDC, JWT internals); experience driving an application through ASVS Level 4 verification is a plus
Hands-on experience authoring custom static-analysis rules and queries for modern SAST engines; familiarity with AI-assisted code review workflows and validating findings produced by automated and agentic analysis pipelines
Strong threat modeling experience throughout the secure SDLC
Fluency with Git-based source control and CI/CD pipelines, including build-pipeline security controls, runner hardening, and release-gate enforcement
Experience with AI-accelerated development or code scanning methodologies

Nice To Haves

Working depth in Python (Django/Flask) and Node.js (Express) for cross-language reviews.
Reverse engineering of compiled C, C++, Rust, Java (IDA Pro, Binary Ninja, Ghidra).
OSWE, CSSLP, GWAPT, published CVEs, or conference talks.
Familiarity with SOC 2, ISO 27001, or FedRAMP control mapping.

Responsibilities

Support Wayfinder Frontier AI Services customer engagements end-to-end, scope the work, deliver the technical findings, and present results to executive and technical stakeholders
Review and triage findings from our agentic code scanning pipeline against customer C, C++, Rust, and Java codebases; validate true positives, eliminate noise, and ensure every finding that reaches the customer is a decision they can act on
Conduct deep code review across C, C++, Rust, and Java code and common frameworks
Present findings to stakeholders, translate technical risk into business impact, and map exposures into end-to-end exploitation chains
Author and maintain SAST rule packs that scale across the customer base, and partner with our AI/ML engineers to improve our agentic scanning engine
Provide expert remediation guidance to customer development teams and validate fixes through follow-up review
Work closely with our engineering teams to enhance our agentic code scanning pipeline and reduce false positives
Collaborate with team members and software-focused threat hunters to elevate team technical standards