Sr. Full Stack Engineer

Viant Technology•Los Angeles, CA

17h

About The Position

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.

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 Haves

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

Responsibilities

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