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Principal, Machine Learning Engineer

VIANTIrvine, California, United States | Seattle, Washington, United States | San Francisco, California, United States | Los Angeles, California, United StatesOnsite
WHAT YOU’LL DO
Viant’s Machine Learning team is redefining the Ad Tech industry by building cutting-edge machine learning systems that automate the complex processes of digital advertising. Our mission is to develop real-time, autonomous AI-driven solutions capable of handling hundreds of millions of events daily, optimizing decision-making, and maximizing impact at scale.As a Principal Machine Learning Engineer, you will play a pivotal role in designing and deploying large-scale, low-latency machine learning systems.

You will drive innovation, lead technical initiatives, and develop state-of-the-art AI solutions that accelerate Viant’s growth and technological advancement. This role requires deep expertise in machine learning, system design, and a strong ability to collaborate across teams to deliver mission-critical AI solutions.

THE DAY-TO-DAY


  • Lead and Architect Scalable ML Solutions – Design, develop, and deploy real-time, high-throughput, low-latency ML services in production environments.
  • Advance MLOps Practices – Implement best-in-class MLOps strategies, automate model deployment, and optimize end-to-end machine learning workflows.
  • Innovate with Generative AI – Research, develop, and integrate cutting-edge generative AI techniques into production-grade systems.
  • Optimize Model Performance – Build high-performing ML models for large-scale decision-making while ensuring efficiency, reliability, and robustness.
  • Drive Technical Strategy – Work closely with Engineering, Data Science, and Product teams to define and implement Viant’s AI roadmap.
  • Mentor and Elevate the Team – Provide technical leadership, mentor junior engineers, and foster a high-impact, collaborative team culture.
  • Ensure Scalable Infrastructure – Work with distributed computing frameworks, cloud-based ML platforms, and modern AI tooling to enable large-scale training and inference.

MUST HAVE


  • Experience: 7+ years in Machine Learning Engineering or a similar role, with a track record of building and scaling ML solutions in production.
  • Generative AI Implementation: Practical experience in developing and deploying generative AI models, agentic systems for real-world applications.
  • Technical Expertise: Proficiency in Python or Go, with deep experience in designing and optimizing scalable ML architectures.
  • ML & Deep Learning Proficiency: Strong knowledge of modern deep learning techniques, including expertise in TensorFlow, PyTorch, LangChain, LangGraph or Llama Index.
  • Production-Grade ML Systems: Experience deploying large-scale ML models in high-throughput, low-latency environments.
  • MLOps Mastery: Hands-on experience with model versioning, CI/CD for ML, monitoring, and automated retraining pipelines.
  • Cloud & Distributed Computing: Proficiency with cloud platforms (AWS, GCP, or Azure) and distributed computing frameworks (e.g., Spark, Ray, or Dask).
  • Generative AI Implementation: Practical experience in developing and deploying generative AI models for real-world applications.
  • Cross-Functional Collaboration: Proven ability to work with product managers, data scientists, and software engineers to drive impactful AI solutions.

GREAT TO HAVE


  • Master’s or PhD in Computer Science, Machine Learning, or a related field.
  • Ad Tech industry experience or familiarity with digital advertising systems.
  • Expertise in implementing reinforcement learning or causal inference techniques for decision-making models.
  • Strong understanding of privacy-preserving ML techniques and compliance standards.

$220,000 - $260,000 a yearIn 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.Not the right position for you? Check out our other opportunities!  Viant Careers#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.

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Life at VIANT

Viant provides healthcare payment solutions through primary and supplemental networks, integrated network and contract management, specialized cost containment strategies and post payment recovery services focusing on timely, accurate and equitable payment for providers, payers and patients.
Thrive Here & What We Value1. Competitive Salary and Bonuses | 2. Paid Benefits for Employees: Medical, Dental, Vision, LTD, Life insurance/AD&D | 3. Paid Parental Leave | 4. 401k | 5. Health and Wellness Programs | 6. Employee Discounts – e.g. gym memberships, wireless plans, entertainment tickets | 7. Hybrid Work Schedule | 8. Casual Office Atmosphere | 9. Commuter Benefits Program | 10. Ongoing Education & Training | 11. Company Sponsored Events & Team Building Experiences</s> | Investing in employee's professional growth is important to us | Voted one of the best places to work | Fully paid health insurance, paid parental leave, unlimited PTO, and more</s> | Fully paid health insurance, paid parental leave, unlimited PTO, and more.</s> | 1. Viant is an equal opportunity employer and makes employment decisions on the basis of merit. | 2. 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. | 3. 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.</s> | Investing in employee’s professional growth is important to us, but so is investing in their well-being. | 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.</s> | 1. Investing in Employee Professional Growth | 2. Investing in Employee WellBeing | 3. Equal Opportunity Employer | 4. Prohibits Unlawful Discrimination Based on Protected Characteristics</s> | 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.</s> | 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.</s> | 1. Viant is committed to investing in employee professional growth. | 2. Viant was voted one of the BEST PLACES TO WORK! | 3. Some of our favorite employee benefits include fully paid health insurance, paid parental leave and unlimited PTO and more. | 4. 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. | 5. 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.</s> | 1. Emphasis on Professional Growth and WellBeing | 2. Equal Opportunity Employer | 3. Prohibits Unlawful Discrimination Based on Protected Characteristics | 4. Recognized as a Leader in the DSP Category | 5. Great Place to Work® Certified</s> | 1. Investing in employee growth and wellbeing | 2. Voted one of the BEST PLACES TO WORK | 3. Fully paid health insurance, paid parental leave, and unlimited PTO</s> | Strong leadership | Ambition | Collaboration | Fun | Fully stocked kitchen | Investing in employee professional growth and well-being</s> | 11. Investing in employee’s professional growth is important to us, but so is investing in their wellbeing. 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 benefits here.</s> | Investing in employee's professional growth and well-being | 2. Voted one of the BEST PLACES TO WORK! | 3. Fully paid health insurance, paid parental leave and unlimited PTO and more.</s> | Investing in employee's professional growth is important to Viant | Viant was voted one of the best places to work and offers fully paid health insurance, paid parental leave, and unlimited PTO among other benefits.</s> | Fully paid health insurance, paid parental leave, unlimited PTO, and more are some of their favorite employee benefits.</s> | 1. Live, Lead, Create, Figure it Out Viant's key company values | 2. Inclusive and collaborative environment | 3. Personalized experience for interns | 4. Hybrid work environment | 5. Fully stocked kitchen | 6. Casual office atmosphere | 7. Networking sessions | 8. Companysponsored events & team building experiences | 9. $25$25 an hour</s> | 1. Innovative Machine Learning Solutions | 2. Autonomous Systems | 3. HighPerformance Engineering Culture | 4. Collaboration Across Technical and Business Teams | 5. AIPowered Programmatic Advertising</s> | 1. Hands on experience with our engineering team | 2. Exposure to an agile work environment with ability to participate in team meetings and daily standups. | 3. Networking events | 4. Fully stocked kitchen | 5. Casual Office Atmosphere</s> | 1. Live, Lead, Create and Figure it Out | 2. Invest in Employees | 3. Inclusive and Collaborative Environment | 4. Exciting Time in Company’s History | 5. Growing Fast on the Heels of Recent IPO</s>

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