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Viant Logo Viant · IT - Software Development

Staff Software Engineer (Back End)

United States, Los Angeles 150000.00 - 205000.00 USD / Year · Job Posted December 13, 2025
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Job Description

As a Staff Software Engineer on our Runtime team, you will work directly with Viant’s ad server, managing a high-volume, low-latency application that processes billions of unique requests a day. This role offers a great opportunity to work with state-of-the-art technology as part of bid optimization, dynamic performance optimization, as well as develop a self-diagnostic and healing architecture. In this role, you will deliver simple, elegant, scalable, extensible solutions that strike the right balance between short-term and long-term considerations. You will design, develop, maintain and trouble software features with an eye on cost, scalability, performance and fault-tolerance. You will participate in design discussions, code reviews and bug triage / Root Cause Analysis (RCA) sessions. You will have the opportunity to be the technical lead of projects that involve 2-3 other engineers. Primarily supporting Viant’s Demand Side Platform, VIANT DSP, you will collaborate with Product, other Engineering and Technical operations teams on the entire lifecycle from ideation to productization and beyond.

Job Responsibility

  • Work directly with Viant’s ad server, managing a high-volume, low-latency application that processes billions of unique requests a day
  • Work with state-of-the-art technology as part of bid optimization, dynamic performance optimization, as well as develop a self-diagnostic and healing architecture
  • Deliver simple, elegant, scalable, extensible solutions that strike the right balance between short-term and long-term considerations
  • Design, develop, maintain and trouble software features with an eye on cost, scalability, performance and fault-tolerance
  • Participate in design discussions, code reviews and bug triage / Root Cause Analysis (RCA) sessions
  • Be the technical lead of projects that involve 2-3 other engineers
  • Collaborate with Product, other Engineering and Technical operations teams on the entire lifecycle from ideation to productization and beyond
  • Drive the development and continuous improvement of existing projects while shaping the vision and scope of future initiatives
  • Collaborate with internal teams to design, build, and refine a highly reliable, highly available, low-latency runtime platform
  • Own and provide technical leadership for multiple subsystems of the runtime platform, ensuring scalability, performance, and fault tolerance
  • Oversee and guide all phases of the software development lifecycle, from design to deployment, with a focus on delivering high-impact solutions

Requirements

  • 8+ years of professional experience in the software industry
  • Bachelor’s degree in Computer Science, Mathematics, or a related field (Master’s degree preferred)
  • Proficiency in GoLang
  • Expertise in designing, building, and delivering high-quality, scalable, and high-performance distributed systems, including developing detailed design specifications
  • Experience with relational databases (e.g., MySQL, Oracle, or SQL Server), including writing SQL
  • Familiarity with cloud-based technologies, especially AWS (e.g., EC2, S3, Lambda, RDS) and GCP
  • Knowledge of multithreading, concurrency, and low-latency application development
  • Proven ability to identify and resolve project issues effectively and in a timely manner

Nice to have

Experience in the AdTech domain is preferred

What we offer

  • Fully paid health insurance
  • Paid parental leave
  • Unlimited PTO
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