Senior Software Engineer — OpenPath

The Trade Desk is a global technology company with a mission to create a better, more open internet for everyone through principled, intelligent advertising. Handling over 1 trillion queries per day, our platform operates at an unprecedented scale. We have also built something even stronger and more valuable: an award-winning culture based on trust, ownership, empathy, and collaboration. We value the unique experiences and perspectives that each person brings to The Trade Desk, and we are committed to fostering inclusive spaces where everyone can bring their authentic selves to work every day.Do you have a passion for solving hard problems at scale? Are you eager to join a dynamic, globally- connected team where your contributions will make a meaningful difference in building a better media ecosystem? Come and see why Fortune magazine consistently ranks The Trade Desk among the best small- to medium-sized workplaces globally.About OpenPath:OpenPath provides a direct, transparent connection between The Trade Desk and leading premium publishers—enabling efficient, objective, and high-quality access to inventory for advertisers. By simplifying the programmatic supply chain and reducing intermediaries, OpenPath brings supply path transparency, cost efficiency, and improved visibility into each impression’s value and source.Objective:OpenPath focuses on creating and managing direct integrations with publishers while providing a robust publisher platform. Unlike an SSP, The Trade Desk remains buy-side focused—we do not optimize publisher yield or manage direct deals. Our mission is to deliver transparency and competition that lead to better outcomes for advertisers.Key Features:

• Direct access to inventory from top publishers through The Trade Desk platform
• Infrastructure designed to integrate with transparent demand solutions, including Prebid’s open-source header bidding
• Emphasis on supply path transparency, cost efficiency, and visibility into cost/value
• A buy-side-only approach supporting competition, innovation, and objective decision-making

Benefits for Advertisers:

• Fewer supply chain hops and greater efficiency
• Objective evaluation of supply paths with no preferential treatment
• Increased transparency into cost drivers, supply sources, and impression value

The Role:As a Senior Software Engineer on the OpenPath team, you will serve as a key technical leader responsible for architecting and building the systems that power direct publisher integrations and the publisher platform. You will work on highly impactful greenfield projects that shape the industry’s future—improving transparency, efficiency, and control across billions of impressions and dollars in programmatic spend.What You'll DoTechnical Leadership & Architecture:

• Architect and design scalable, high-performance systems that enable direct publisher integrations and transparent supply paths
• Lead platform infrastructure efforts, including components that support Prebid header bidding and publisher tooling
• Drive key architectural decisions for greenfield codebases and next-generation services

Execution & Collaboration:

• Partner closely with product managers, data scientists, client services, data partnerships, inventory teams, and FP&A to translate business needs into technical solutions
• Develop and maintain the publisher platform that empowers publishers to manage their integrations
• Drive system performance improvements to support large datasets (e.g., 100% avails, user data) with high availability and low latency

Leadership & Influence:

• Mentor engineers across the team and elevate engineering practices
• Champion an iterative, fail-fast culture—rapidly prototyping, learning, and evolving solutions
• Set and uphold technical standards for distributed systems, reliability, and platform development

Technologies We Use:

• Backend: C#, Scala, Go
• Frontend: React, Redux, TypeScript, Puppeteer, Jest
• Data: SQL, Spark
• Databases: SQL Server, Vertica, Aerospike
• Infrastructure: Docker, Kubernetes

Who You Are

• Staff Software Engineers own proven experience building and scaling large distributed systems
• Strong architectural instincts and the ability to design systems for reliability, performance, and scale
• A technical leader with experience mentoring engineers and leading cross-team initiatives
• Deeply curious about the business and passionate about using technology to transform outcomes
• Comfortable operating in ambiguity, iterating quickly, and pivoting when needed
• Collaborative and energized by working across multiple teams and disciplines
• Motivated by transparency, simplicity, and building principled systems
• Experience with high-scale, real-time systems or platform development is a strong plus

Who Won’t Enjoy Working on OpenPath

• Engineers who want purely technical challenges without business context
• Anyone uncomfortable with failing fast, discarding ideas, or pivoting quickly
• People who prefer rigid structures and slow-moving development cycles
• Folks who take work too seriously and don’t enjoy a fun, collaborative environment

Why OpenPath Is a Great Team

• Massive business impact: Influence billions in ad spend and reshape how premium inventory is accessed
• Extreme scale: Work with high-volume publisher integrations, 100% avails, user data, and real-time systems
• Broad technical exposure: Touch multiple services across the company—from publisher integrations to demand-side infrastructure
• Deep cross-functional engagement: Collaborate closely with engineering, product, data science, operations, and commercial teams
• Greenfield development: Build several new services and platforms from the ground up
• Innovation culture: Help define the future of transparent, efficient supply paths in programmatic advertising
• Modern technology stack: Build cutting-edge services and lead the evolution toward agile architectures

Position ImpactOpenPath is a major strategic initiative that introduces a transparent, efficient alternative supply path for advertisers. As a Staff Engineer, you will shape the foundational infrastructure that connects advertisers directly to premium publishers—driving industry-wide transparency and improving outcomes at global scale.Variety of technical opportunity is one of the best things about working at The Trade Desk as a software engineer which is why we do not expect you to know every technology we use when you start. What we care about is that you can learn quickly and find solutions to complex problems using the optimum tools for the job. What you know is less important than how well you learn and innovate. We don't need engineers who know all the answers; we need engineers who can invent the answers no one has thought of yet, to the questions yet to be asked.  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.

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CO, CA, IL, NY, WA, and Washington DC residents only: In accordance with CO, CA, IL, NY, WA, and Washington DC law, 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, abilities, 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 sales-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

At the Trade Desk, Base Salary is one part of our competitive total compensation and benefits package and is determined using a salary range. The base salary range for this role is $183,000—$274,000 USD

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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