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About the Role

Software Engineers at The Trade Desk are end-to-end owners who design, build, and operate the systems powering the company's digital advertising platform. This role is within the High Performance Computing (HPC) team, specifically focusing on the First Party taskforce, which handles how advertisers bring their data onto the platform, and how that data is priced and monetized. The work involves building and maintaining backend services, GraphQL APIs, and asynchronous pipelines for data ingestion, anonymization, and real-time processing.

Responsibilities

Own systems end to end — design, production, and on-call.
Build and maintain backend services and GraphQL APIs used by internal teams, customers, and partner integrations.
Build pipelines that ingest, validate, and anonymize first party data, turning advertiser PII into tokens for platform targeting.
Work within a secure enclave where PII must never touch general-purpose infrastructure, designing around this constraint.
Ensure asynchronous correctness, handling retries, ordering, idempotency, and partial failures in message processing.
Own cross-system changes across services, APIs, and databases, ensuring adequate test coverage, observability, and monitoring.
Translate ambiguous requirements from product and business partners into designs and shape long-term technical strategy.
Improve team standards through code review, design feedback, and mentoring.
Welcome ideas different from your own and work to build from common ground, valuing and fostering diversity.

Requirements

Extensive experience building and operating production systems in high-scale or high-impact environments.
Solid CS fundamentals and hands-on breadth across distributed systems.
Experience with event-driven, asynchronous systems, including message-based processing, schema and data-model design, and consistency across services.
Writes maintainable code and is diligent about testing, validation, and production reliability.
Takes complex problems from ambiguity to execution.
Collaborates across teams to solve problems.
Communicates clearly with technical and non-technical audiences.

Skills

.NET/C#
Kotlin
JVM language
Linux
Networking
Message brokers (e.g., Kafka)
SQL databases
NoSQL databases
GraphQL API design
Systems handling PII or regulated data
Quick learning
Critical thinking
Thoughtful solution building

Location

Global

Work Type

Full-time

Experience Level

Extensive experience

About the Company

The Trade Desk is a global technology company and the world’s leading independent platform for digital advertising.
Our technology helps advertisers reach the right audiences across the open internet.
Advertising powers the content people love, supporting 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.
We welcome diverse perspectives, encourage curiosity, and build teams that learn from one another.

Equal Opportunity

As an Equal Opportunity Employer, The Trade Desk is committed to creating an inclusive hiring experience where everyone has the opportunity to thrive.
Please reach out to us at accommodations@thetradedesk.com to request an accommodation or discuss any accessibility needs you may require to access our Company Website or navigate any part of the hiring process.
When you contact us, please include your preferred contact details and specify the nature of your accommodation request or questions.
Any information you share will be handled confidentially and will not impact our hiring decisions.