Senior Software Engineer (Data)

Viant Technology•Irvine, CA

6d•$120,000 - $180,000

About The Position

As a Senior Software Engineer on Viant’s Data team, you will build and optimize the data systems that power our AI-driven DSP, enabling real-time decisioning and measurement across CTV and omnichannel advertising. You’ll work with large-scale datasets and distributed systems in a multi-region cloud environment spanning GCP and AWS. This role is ideal for an engineer who enjoys solving complex data challenges, improving system performance, and contributing to scalable infrastructure. You’ll collaborate closely with cross-functional teams while delivering reliable, efficient, and high-quality data solutions.

Requirements

5+ years of experience in software engineering, with a focus on data systems or backend development
Proficiency in one or more programming languages such as Python, Java, or Go
Experience with GCP (including BigQuery) or other cloud data platforms
Strong SQL skills and experience working with large-scale datasets
Familiarity with building APIs, microservices, or distributed systems
Understanding of ETL/ELT processes and data pipeline architecture
Experience troubleshooting production systems and performance issues
Strong problem-solving skills and ability to work in a fast-paced environment

Responsibilities

Design, develop, and deploy data pipelines and backend services in a cloud environment
Build and maintain ELT workflows using modern data processing tools and frameworks
Optimize ETL processes and queries for performance, scalability, and cost efficiency
Troubleshoot data and system issues in production environments
Collaborate with product, engineering, and operations teams to deliver features and improvements
Contribute to system design discussions and implement scalable solutions
Ensure data quality by identifying inconsistencies and resolving issues
Support ongoing improvements to system reliability, performance, and maintainability