Software Engineer; Back End

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As a Staff Software Engineer on our Runtime team, you will work directly with Viant’s ad server, managing a high-volume, low-latency application that processes billions of unique requests a day. This role offers a great opportunity to work with state‑of-the‑art technology as part of bid optimization, dynamic performance optimization, as well as develop a self‑diagnostic and healing architecture. In this role, you will deliver simple, elegant, scalable, extensible solutions that strike the right balance between short‑term and long‑term considerations.

You will design, develop, maintain and trouble software features with an eye on cost, scalability, performance and fault‑tolerance. You will participate in design discussions, code reviews and bug triage / Root Cause Analysis (RCA) sessions. You will have the opportunity to be the technical lead of projects that involve 2–3 other engineers.

Primarily supporting Viant’s Demand Side Platform, VIANT DSP, you will collaborate with Product, other Engineering and Technical operations teams on the entire lifecycle from ideation to productization and beyond.

• Drive the development and continuous improvement of existing projects while shaping the vision and scope of future initiatives.
• Collaborate with internal teams to design, build, and refine a highly reliable, highly available, low‑latency runtime platform.
• Own and provide technical leadership for multiple subsystems of the runtime platform, ensuring scalability, performance, and fault tolerance.
• Oversee and guide all phases of the software development lifecycle, from design to deployment, with a focus on delivering high‑impact solutions.

• 8+ years of professional experience in the software industry.

• Bachelor’s degree in Computer Science, Mathematics, or a related field (Master’s degree preferred).
• Proficiency in Go Lang
• Expertise in designing, building, and delivering high‑quality, scalable, and high‑performance distributed systems, including developing detailed design specifications.
• Experience with relational databases (e.g., MySQL, Oracle, or SQL Server), including writing SQL.
• Familiarity with cloud‑based technologies, especially AWS (e.g., EC2, S3, Lambda, RDS) and GCP.
• Knowledge of multithreading, concurrency, and low‑latency application development.
• Proven ability to identify and resolve project issues effectively and in a timely manner.
• Experience in the AdTech domain is preferred.

Investing in our employee’s professional growth is important to us, but so is investing in their well‑being. That’s why Viant was voted one of the best places to work and some of our favorite employee benefits include fully paid health insurance
, paid parental leave and unlimited PTO and more.

Base compensation range: $150,000 – $205,000

In accordance with California law, the range provided is Viant’s reasonable estimate of the compensation for this role. Final title and compensation for the position will be based on several factors including work experience and education.

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Viant Technology Inc. (NASDAQ: DSP) is a leader in CTV and AI‑powered programmatic advertising, dedicated to driving innovation in digital marketing. Viant’s omnichannel platform built for CTV allows marketers to plan, execute and measure their campaigns with unmatched precision and efficiency. With the launch of Viant

AI, Viant is building the future of fully autonomous advertising solutions, empowering advertisers to achieve their boldest goals. Viant was recently awarded Best AI‑Powered Advertising Solution and Best Demand‑Side Platform by Mar Tech Breakthrough, Great Place to Work® certification and received the Business Intelligence Group’s AI Excellence Award. Learn more at

Viant is an equal opportunity employer and makes employment decisions on the basis of merit. Viant prohibits unlawful discrimination against employees or applicants based on race (including traits historically associated with race, such as hair texture and protective hairstyles), religion, religious creed,…