Sr Software Engineer - High Performance Computing - Rates & Fees Team

The Trade Desk•New York, NY

22h•Hybrid

About The Position

The Trade Desk is a global technology company and the world’s leading independent platform for digital advertising. Our Software Engineers are end-to-end owners who design, build, and operate the systems that power our platform at scale. We are part of the High Performance Computing (HPC) team, which powers the core bidding platform by supplying large volumes of data and ensuring its availability, freshness, and quality. This foundation enables critical systems to operate reliably and efficiently in a real-time, global environment. Within HPC, the Rates & Fees team focuses on building the systems that power how our platform prices and monetizes data. We own the infrastructure that determines how data is costed, activated, and transacted across the platform, sitting at the core of how the business operates. We build highly scalable backend systems that manage complex workflows and large datasets across distributed environments. This includes everything from real-time APIs that support critical user workflows, to data pipelines that ensure information is accurate and globally available. Our work directly impacts system performance and business outcomes, requiring a strong focus on correctness, reliability, and efficiency. Our systems run 24/7, serving global traffic in a highly collaborative environment. Engineers on our team solve challenging problems around system design, data consistency, and large-scale processing—working across teams to build resilient, high-performance systems that operate at scale.

Requirements

6+ years of experience building and operating production software systems, ideally in high-scale or high-impact environments
Strong fundamentals in computer science, with hands-on experience across distributed systems and a range of technologies such as .NET/C#, Java, Linux, networking, streaming systems, and NoSQL databases
Writes high-quality, maintainable code and is diligent about testing, validation, and ensuring reliable production systems
Ability to take ownership of complex problems, drive them from ambiguity to execution, and collaborate effectively across teams
Clear communicator who can work across both technical and non-technical audiences and thrive in a fast-paced, collaborative environment
Experience building and operating distributed systems at scale
Strong focus on code quality and reliability
Important skills for the role: automated testing, unit/integration tests, validation, monitoring, observability
Experience designing and optimizing backend services: performance optimization, latency reduction, profiling, load testing
Hands-on experience with modern backend technologies: .NET/C#, Java, Linux, APIs, SQL/NoSQL databases

Nice To Haves

Keywords: high-throughput systems, event-driven architecture, streaming, concurrency, scalability
Understanding of AdTech is a plus

Responsibilities

Design, build, and own end-to-end software systems from concept through production
Develop and maintain scalable backend services and APIs
Build and optimize data pipelines that ensure data is accurate, timely, and available for real-time use
Design flexible systems that can evolve with changing business and product needs
Drive complex, cross-system changes with a focus on correctness, reliability, and scalability
Deliver high-quality code with strong automated test coverage, observability, and monitoring
Collaborate closely with product, business, and engineering partners to turn ambiguous requirements into scalable solutions
Improve system performance and reduce latency for time-sensitive workflows
Build internal tools and workflows that improve efficiency for both internal teams and external partners
Ensure systems are resilient and operate reliably at scale, supporting 24/7 global traffic
Use data to measure and communicate the impact of your work on system performance and operational efficiency
Participate in architecture and design discussions, contributing to long-term technical strategy
Mentor other engineers through code reviews, design feedback, and knowledge sharing
Participate in on-call rotations and take ownership of production systems

Benefits

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
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
Eligibility for stock-based compensation grants
Variable compensation-based incentives and commissions