Application Security Engineer II
thetradedesk
Bellevue; Ventura
Posted Jul 21, 2026
- Full-time
- Information Security
thetradedesk
Bellevue; Ventura
Posted Jul 21, 2026
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:
Who you are:
Nice to have
The Trade Desk does not accept unsolicited resumes from search firm recruiters. Fees will not be paid in the event a candidate submitted by a recruiter without an agreement in place is hired; such resumes will be deemed the sole property of The Trade Desk. The Trade Desk is an equal opportunity employer. All aspects of employment will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other status protected under federal, state, or local law.
[LA JOBS ONLY] The Trade Desk will consider qualified applicants with criminal histories for employment in a manner consistent with the requirements of the Los Angeles Fair Chance Initiative for Hiring, Ordinance No. 184652.
[SF JOBS ONLY] Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.
In accordance with various US state laws, the range provided is the Trade Desk's reasonable estimate of the base compensation for this role. The actual amount may differ based on non-discriminatory factors such as experience, knowledge, skills, and location. All employees may be eligible to become The Trade Desk shareholders through eligibility for stock-based compensation grants, which are awarded to employees based on company and individual performance. The Trade Desk also offers other compensation depending on the role such as variable compensation-based incentives and commissions. Plus, expected benefits for this role include comprehensive healthcare (medical, dental, and vision) with premiums paid in full for employees and dependents, retirement benefits such as a 401k plan and company match, short and long-term disability coverage, basic life insurance, well-being benefits, reimbursement for certain tuition expenses, parental leave, sick time of 1 hour per 30 hours worked, vacation time for full-time employees up to 120 hours thru the first year and 160 hours thereafter, and around 13 paid holidays per year. Employees can also purchase The Trade Desk stock at a discount through The Trade Desk’s Employee Stock Purchase Plan.
The Trade Desk also offers a competitive benefits package. Click here to learn more.
Note: Interns are not eligible for variable incentive awards such as stock-based compensation, retirement plan, vacation, tuition reimbursement or parental leave
As an Equal Opportunity Employer, The Trade Desk is committed to creating an inclusive hiring experience where everyone has the opportunity to thrive.
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