Sr Software Engineer - Backend API Platform
The Trade Desk · Seattle ·
- Seniority
- Senior
- Employment
- Contract
- Category
- Backend
- Experience
- 6+ years
- Company size
- 1000+
- Salary
- USD 124,900 – 228,900
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Build and operate the core API platform for a new Smart TV operating system, designing identity, authorization, and monetization systems that power ads and user access across millions of devices.
The Trade Desk is a global technology company and the world’s leading independent platform for digital advertising, with over 3,000 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.
Ventura OS is a new Smart TV operating system being built inside The Trade Desk, the world’s leading independent platform for digital advertising. Where the wider company runs a global-scale DSP, Ventura is closer to a startup inside it: a small team, direct influence over product direction, and a real OS shipping to real devices in real living rooms.
We’re deliberately building the CTV supply chain differently: more efficient for advertisers and publishers, more relevant for viewers, and more transparent end-to-end. The backend that powers all of it is being built now, and API Platform sits at the center of it.
The API Platform team is the front door to Ventura: every boot, every sign-in, and every API call from a TV in the wild passes through us. That makes us the layer the rest of Ventura builds on. We own the APIs the OS calls as it starts up and runs, the identity provider that authenticates each device and user, the portals operators and partners work through, and the pipelines that carry ads and monetization data out to the wider TTD platform.
You’ll be an end-to-end owner of the systems this team runs, designing, building, and operating them in production while setting the standards other Ventura teams inherit. This role sits at the intersection of API design, identity engineering, and platform work: the problem space spans OAuth and OIDC flows, device attestation, and the authorization model that scopes every request to the right partner, user, and device. You’ll also design under a constraint most API work doesn’t have: you can’t force an upgrade on a TV in someone’s living room, so every API decision is close to permanent. Scale, reliability, and security all have to be true at the same time. There’s no room to trade one against the others.
In addition to the core responsibilities of our backend engineers, you will share ownership of:
One of the best things about working here is the variety of technical opportunities. We don’t expect you to know every technology we use from day one. What matters most is that you can learn quickly and solve complex problems using the best tool for the job. What you know is less important than how well you adapt, innovate, and think critically.
We’re not looking for engineers who know all the answers. We’re looking for engineers who can invent the answers no one has thought of yet, to the questions yet to be asked.
Culture matters. Ventura is a small, high-impact team inside The Trade Desk, and we take pride in our engineers being trust-builders, generous givers, scrappy problem solvers, and gritty pursuers of excellence.
You don’t have to meet every requirement below, but if you check most of these boxes, you’re likely to thrive in this role.
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.
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.
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