Staff Application Security Engineer

ServiceTitan is transforming product security into a core part of how engineering delivers software. The Staff Application Security Engineer will define and scale secure software development practices, automate vulnerability detection and remediation, and lead security initiatives while partnering closely with engineering teams.

Responsibilities:

• Build the Secure Paved Road (Pipeline and Code)
• Pipeline Automation: Deeply integrate GitHub Advanced Security into the CI/CD pipeline to act as automated checkpoints, providing fast feedback to engineers without manual intervention
• Secure by Default Code: Collaborate with Engineering to develop and maintain secure microservice templates and libraries with embedded security controls
• Secrets and Supply Chain: Lead hardcoded secrets mitigation efforts by automating detection and building workflows to validate compromised credentials via API
• Secure SDLC Practices: Drive cross functional initiatives to establish and continuously improve secure software development lifecycle practices across the organization
• Continuous Security Testing and Validation
• Penetration Testing: Lead onboarding and operation of continuous penetration testing capabilities across web applications and services
• Security Assessments: Participate in and help scale internal security assessments, penetration testing, and bug bounty programs
• Tooling Ownership: Evaluate, prototype, implement, and operate security tools including DAST, SAST, and SCA
• Simulation and Validation: Run proactive simulations based on emerging threats to validate defenses and identify gaps
• Architecture and Threat Modeling
• Security Design Reviews: Lead security design reviews and threat modeling for new and existing services
• Secure Architecture: Develop and maintain secure architecture standards, frameworks, and reusable patterns across multiple layers of the stack
• Emerging Threat Analysis: Continuously analyze evolving security threats, determine relevance, and implement centralized mitigations
• Operational Support and Engineering Partnership
• Technical Leadership: Act as the AppSec technical expert for the Security Champions Program, guiding engineers on vulnerability remediation and secure coding practices
• Contextual Training: Implement just in time training mechanisms that help engineers remediate vulnerabilities as they are introduced
• Triage to Automate: Own initial triage of vulnerability findings, identify patterns, and drive automation and guardrails to reduce recurring issues
• Incident Response: Participate in security incident response and support post incident analysis and remediation efforts
• Continuous Improvement and Expertise
• Maintain strong knowledge of current security threats, vulnerabilities, and operational best practices, applying that knowledge to continuously improve the organization’s security posture

Requirements:

• 7-10+ years of experience in Product/Application Security, with a strong background in software engineering
• Proficiency in C#/.NET (preferred) or Go/Java. You must be able to read code to find vulnerabilities and write code to fix them
• Experience moving security 'left' using tools like GitHub Advanced Security (GHAS), dependency scanners, and secret detectors
• Proven ability to script (Python, Go, PowerShell) and automate security tasks
• Interest in the intersection of AI and Security, specifically in securing AI workloads, leveraging AI capabilities to embed security throughout the SDLC, and using AI agents for defense