Staff Security Engineer, Application Security

NinjaTrader

Staff Security Engineer at NinjaTrader promoting secure design across application security. Leading key security initiatives and driving improvements in security coverage and automation.

Posted 7/7/2026full-timeChicago • California, Colorado, District of Columbia, Florida, Illinois, Minnesota, Montana, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, South Carolina, Texas, Utah, Vermont, Virginia, Washington, Wisconsin • 🇺🇸 United StatesLead💰 $210,000 - $260,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudGoGoogle Cloud PlatformPython

About the role

Key responsibilities & impact

Own key security domains such as vulnerability management, application security, API security, and supply chain security
Drive improvements in security coverage, prioritization, and remediation workflows
Partner with engineering teams to integrate security into design reviews, threat modeling, CI/CD pipelines, and developer workflows
Provide actionable, pragmatic guidance that helps teams ship securely
Develop and improve security tooling and automation to reduce manual effort
Implement and tune tools for SAST, SCA, DAST, dependency security, and container security
Leverage AI/LLMs where appropriate to improve triage, detection, and review processes
Triage and prioritize vulnerabilities using risk-based approaches
Partner with teams to ensure timely remediation of critical issues
Help define and improve SLAs, metrics, and reporting
Conduct threat modeling, design reviews, and security assessments
Contribute to incident response and postmortems for security events
Identify and help remediate systemic risks

Requirements

What you’ll need

7+ years of experience in Application Security, Product Security, or Security Engineering
Strong hands-on experience with threat modeling and secure design
Experience with vulnerability management and application security tooling
Experience working in cloud-native environments such as AWS and GCP
Experience integrating security into CI/CD pipelines and developer workflows
Ability to write code in Python, Go, or similar languages for automation and tooling
Strong ability to work cross-functionally with engineering teams

Benefits

Comp & perks

Generous PTO
7 Paid Holidays Annually + 5 Conditional Holidays Annually
1 Service Day Annually
401k with 3.5% Company Match
Paid Parental Bonding Leave
Health, Vision, Dental Coverage
Life and Disability Insurance Covered 100% by NinjaTrader

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Vulnerability ManagementApplication Security ToolingThreat ModelingSecure DesignAutomation in PythonAutomation in GoSecurity AssessmentsIncident ResponseRisk-Based ApproachesSecurity Metrics

Soft Skills

Cross-Functional CollaborationPragmatic Guidance