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.

The Trade Desk operates one of the largest and most performant programmatic advertising platforms in the world. The security of our customers’ data, the trust of our partners, and the velocity of our engineering teams all hinge on the strength of our application and platform security programs. As our security posture continues to mature, we are investing in the leadership required to drive that maturity forward.

We are looking for a Manager, Security Engineering to join our Cybersecurity Department. This person will lead a combined team of Application Security and Platform Security engineers, with end-to-end ownership of how TTD secures both the code we ship and the infrastructure we run it on. Reporting within the Cybersecurity organization, this leader will contribute to the strategy, roadmap, and execution of TTD’s Security Engineering function — including the KPIs, maturity model, and executive-level reporting that demonstrate measurable improvement in our overall security posture over time.

The right candidate brings deep application and platform security expertise, a track record of building and developing high-performing teams, a strong bias to action, and the ability to translate technical risk into business outcomes for engineering leaders, product leaders, and executives. Beyond the technical and program experience, we are looking for a leader with the human qualities that make a security team effective. You lead with integrity, communicate clearly, and bring empathy to your team, the engineers we partner with, and the customers whose trust we hold.

You are deeply curious about how systems work and how they break, and you pair that curiosity with a strong bias to action and ownership of outcomes. You stay calm under pressure, and you approach feedback — both giving and receiving it — with humility and a willingness to grow. Security is a team sport, and the right leader sets that tone every day.

What You'Ll Do

: Lead, grow, mentor, and develop a combined team of Application Security and Platform Security engineers; drive performance, growth, and retention across the function. Own and evolve The Trade Desk’s Security Engineering strategy, roadmap, and maturity model across both application and platform domains; define and report KPIs that demonstrate measurable improvement in security posture to senior leadership. Ensure consistency and alignment across application and platform security controls — driving unified standards, shared tooling, and integrated posture outcomes for the enterprise.

Drive shift-left integration of security into the SDLC in partnership with Engineering and Product — including threat modeling, secure design reviews, and the rollout and tuning of SAST, DAST, and SCA tooling. Mature TTD’s posture management capabilities across cloud and infrastructure — including CSPM, Infrastructure-as-Code scanning, hardening baselines, and configuration management.