Principal Software Engineer

Viant
Irvine, CA

WHAT YOU’LL DO

Viant’s customers use the Demand Side Platform (DSP) to set up, run and monitor ad campaigns. The platform team owns a complex set of backend services and the frontend UI that make up the DSP. These services are deployed in a distributed, multi-region, cloud-based infrastructure and use the latest technologies to handle the immensely complicated functionality that is part of any Demand Side Platform (DSP) such as Viant DSP. You will serve as the technical lead working with a team of engineers to oversee the design and implementation of these interconnected services, ensuring that the system evolves to keep pace with the speed, scale and agility that modern day systems are expected to support. You will have the opportunity to mentor team members and contribute towards the success of Viant’s products. Primarily supporting Viant DSP, you will collaborate with Product, Engineering and Technical operations teams on spec creation and providing production support.

\n

THE DAY-TO-DAY
  • Determine a long-term technical vision and scope of future projects, while continuously developing and reviewing existing projects.
  • Lead end-to-end product development efforts for Viant DSP’s suite of products.
  • Own & contribute to major features & areas of the products.
  • Work closely with cross-functional teams internally as well as customers externally to understand pain points, underserved needs, and identify opportunities.
  • Mentor engineers who thrive working in an innovative, user-focused, fast paced environment.
  • Drive initiatives to reduce operational load, and build operationally sustainable products.

MUST HAVE
  • Must have experience in the AdTech domain OR possess strong proficiency in the Go programming language.
  • 12+ years of professional experience in the software industry.
  • Experience with web services, microservices, or other SOA
  • Relational database experience, such as MySQL, Postgres, or Oracle, and experience with complex SQL

GREAT TO HAVE
  • Bachelor’s degree in Mathematics, Computer Science or related field.
  • Solid understanding of data structures and algorithms.
  • Knowledge of modern programming languages, especially Java and Go.
  • Knowledge of cloud based technologies, especially AWS, Azure or GCP.
  • Hands on experience designing, building and delivering high quality scalable, operationally sustainable software.
  • Ad tech industry experience is a plus.
  • NoSQL experience is a plus

LIFE AT VIANT
  • 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 !
  • Some our favorite employee benefits include fully paid health insurance , paid parental leave and unlimited PTO and more. View a list of our here .

\n

$200,000 - $260,000 a year

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. \n

Not the right position for you? Check out our other opportunities!

#LI-KP1

About Viant

Viant Technology Inc. (NASDAQ: DSP) is a leader in AI-powered programmatic advertising, dedicated to driving innovation in digital marketing. Our omnichannel platform built for CTV allows marketers to plan, execute and measure their campaigns with unmatched precision and efficiency. With the launch of ViantAI, Viant is building the future of fully autonomous advertising solutions, empowering advertisers to achieve their boldest goals. Viant was recently awarded Best Demand Side Platform by MarTech Breakthrough, Great Place to Work® certification and received the Business Intelligence Group’s Innovation award for AI Advancements. Learn more at viantinc.com .

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, color, national origin, ancestry, physical disability, mental disability, medical condition, genetic information, marital status, sex, reproductive health decision making, gender, gender identity, gender expression, age, military status, veteran status, uniformed service member status, sexual orientation, transgender identity, citizenship status, pregnancy, or any other consideration made unlawful by federal, state, or local laws. Viant also prohibits unlawful discrimination based on the perception that anyone has any of those characteristics, or is associated with a person who has or is perceived as having any of those characteristics.

By clicking “Apply for this Job” and providing any information, I accept the Viant California Personnel Privacy Notice.

Posted 2026-01-07

Recommended Jobs

AI Engineer & Researcher - Pretraining and Scaling

Xai
Palo Alto, CA

About xAI xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on eng…

View Details
Posted 2025-12-10

LEAD CARE MANAGER SACRAMENTO AREA

BLEHEALTH, LLC
Sacramento, CA

LEAD CARE MANAGER SACRAMENTO AREA Location Sacramento, CA : The Lead Care Manager works in collaboration and continuous partnership with chronically ill or “high-risk” members and their family/caregi…

View Details
Posted 2026-01-13

Staff Accountant

Edge Autonomy
San Luis Obispo, CA

Description W ORK LOCATION: San Luis Obispo, CA or Huntsville, AL FLSA STATUS: Exempt S ALARY RANGE: The anticipated salary range for this role is $67, 700 to $81,500 . This range …

View Details
Posted 2025-11-25

System Safety Intern

zoox
Foster, CA

Zoox’s internship program provides hands-on experiences with state of the art technology, mentorship from some of the industry's brightest minds, and the opportunity to play a part in our success. In…

View Details
Posted 2025-11-14

Temporary Accounts Payable Manager

Stance
San Clemente, CA

About Us We are a fast-paced, consumer brand headquartered in San Clemente. Our team is passionate, collaborative, and hands-on. We’re looking for an experienced AP Manager to step in and take own…

View Details
Posted 2025-11-28

Distinguished AI Engineer

Capital One
San Jose, CA

Distinguished AI Engineer Overview: At Capital One, we are creating responsible and reliable AI systems, changing banking for good. For years, Capital One has been an industry leader…

View Details
Posted 2026-01-03

Assistant Superintendent

Greystar
Torrance, CA

ABOUT GREYSTAR Greystar is a leading, fully integrated global real estate platform offering expertise in property management, investment management, development, and construction services in ins…

View Details
Posted 2025-11-15

San Jose - Dishwasher

The Party Staff
San Jose, CA

The Party Staff, Inc.  is looking to add to our growing roster of  Dishwashers  in San Jose, CA! We are on the hunt for rockstar dishwashers to join our team at The Party Staff. Our company has bee…

View Details
Posted 2025-11-21

Staff Durability CAE Engineer, Explicit Dynamics

Rivian
California

About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to att…

View Details
Posted 2026-01-09

Get paid for taking free surveys with Unlock Surveys

Springboard America
California

Engage in surveys and discussions to earn rewards! Join Unlock's dynamic community of survey panellists today and begin earning rewards for sharing your valuable opinions. Formerly known as Springbo…

View Details
Posted 2025-12-03