Sr. Full Stack Engineer

Sr. Full Stack Engineer

Irvine, California, United States; Los Angeles, California, United States

WHAT YOU'LL DO

Viant's customers use our Demand Side Platform (DSP) to plan, execute, and monitor digital advertising campaigns. The Platform team owns the user experience and supporting systems that power this product.

As a Senior Engineer with a frontend focus, you will lead the development of complex, data-driven user interfaces in Angular or React, with a strong emphasis on state management, data flow, and performance at scale. You'll work with large datasets and real-time campaign data, ensuring that the UI remains responsive, consistent, and accurate.

You will collaborate across Product, Design, and Engineering to build intuitive experiences, while also working with backend systems and data layers to ensure efficient data access and correctness.

THE DAY-TO-DAY

• Design, develop, and maintain scalable Angular applications using TypeScript
• Architect and implement robust state management solutions
• Model and manage complex client-side data flows, ensuring consistency across views and interactions
• Build data-intensive UI features such as dashboards, reporting tools, and campaign management workflows
• Write and optimize SQL queries to support application functionality, reporting, and debugging of data-related issues
• Partner with backend engineers to ensure efficient API design and data contracts
• Analyze and troubleshoot data discrepancies across frontend, APIs, and database layers
• Optimize frontend performance, especially around large datasets and real-time updates
• Build reusable UI components and shared frontend libraries
• Write unit and end-to-end tests for both UI behavior and state logic
• Participate in code reviews, design discussions, and agile ceremonies

QUALIFICATIONS AND REQUIREMENTS

• 5+ years of professional software engineering experience with a strong frontend focus
• Deep experience with Angular and TypeScript
• Strong expertise in state management patterns
• Experience building data-heavy, interactive applications (e.g., dashboards, analytics tools)
• Solid understanding of asynchronous data flows, event-driven architectures, and client-side data modeling
• Proficiency in writing and optimizing SQL queries for application support, reporting, or debugging
• Experience working with RESTful APIs and understanding backend data models
• Strong debugging skills across frontend, API, and database layers
• Familiarity with testing frameworks (Jest, Cypress, etc.)
• Solid foundation in HTML, CSS, and responsive design

NICE TO HAVE:

• Experience with backend technologies such as Java or Go
• Familiarity with cloud environments (AWS, GCP) and distributed systems
• Experience with data visualization tools or libraries
• Exposure to ETL processes or analytics pipelines

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 benefits here.

Base compensation range: $130,000 - $180,000 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.

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, religion, color, national origin, physical disability, mental disability, medical condition, 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.