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Application Security Engineer II

The Trade Desk
CompanyThe Trade Desk
CategoryUncategorised
LocationBellevue; Ventura
RemoteOn-site (inferred)
EmploymentNot stated
LevelNot stated
SalaryNot stated by the employer
Posted21 Jul 2026
Last verified30 Jul 2026
SourceEmployer career page (greenhouse)
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Description
The Trade Desk is a global technology company and the world’s leading independent platform for digital advertising, with nearly 4,000 employees across more than 30 offices. Our technology helps advertisers reach the right audiences across the open internet — from streaming TV and podcasts to mobile apps, news, and more.  Advertising powers the content people love. By making it more transparent, effective, and responsible, we help support trusted journalism, quality entertainment, and creators worldwide. The world’s brands and agencies rely on us to reach their customers and grow their businesses responsibly. The scale of our platform brings unique technical challenges — from processing massive datasets in real time to building systems that operate reliably on a global scale. When you work here, your impact is worldwide. We welcome diverse perspectives, encourage curiosity, and build teams that learn from one another. If you’re driven to solve meaningful challenges, we’d love to meet you. What we do: We are looking for an Application Security Engineer to join our Cybersecurity Department. This role is ideal for a software engineer who enjoys building tools, solving complex technical problems, and wants to grow into a career in application security. You'll work alongside experienced security engineers to help improve the security of our applications, build developer-focused security tooling, and contribute to protecting a platform used daily by many of the world's largest brands. As an Application Security Engineer, you'll partner closely with engineering teams to improve the security of the products they build. You'll investigate vulnerabilities, contribute to security tooling and automation, participate in design and code reviews, and help improve the developer experience through practical, security-focused engineering. As software development continues to evolve with AI-assisted engineering, you'll have the opportunity to help shape the tools, workflows, and practices that enable developers to move quickly without compromising security. We're looking for someone who is curious, collaborative, and enjoys building things. You don't need to be an application security expert on day one; we're looking for a strong engineer with an interest in security and the motivation to learn. If you enjoy understanding how systems work, solving difficult problems, and creating tools that make other engineers more effective, you'll find plenty of opportunities to grow here. We believe security is most successful when it's built in partnership with engineering, and we're looking for someone who shares that mindset What you'll do: Build tools, automations, and integrations that help engineers develop more secure software with less friction. Partner with software engineering teams to identify security issues, understand root causes, and implement practical solutions. Develop and improve integrations with application security tooling, including SAST, DAST, SCA, and CI/CD pipelines. Investigate security findings from internal testing, automated tooling, and our bug bounty program, validating results and helping engineering teams prioritize and remediate vulnerabilities. Participate in design reviews and code reviews, learning how to identify security risks early in the software development lifecycle. Write production-quality code that improves the capabilities and scalability of the Application Security program. Help evaluate emerging development technologies, including AI-assisted software development, and contribute to secure engineering practices. Learn from experienced Application Security engineers while growing your expertise in secure software design, application security, and developer enablement. Who you are:  BS degree in Computer Science, Software Engineering, Cybersecurity, or a related technical field, or equivalent practical experience. 4+ years of professional softwar
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Application Security Engineer II — The Trade Desk · Job Opportunities API