Senior Backend Engineer, Ads Measurement & Effectiveness

TikTok Inc.; San Jose (CA); On-site; USD 218,000 - 388,000; Full time

Job summary

TikTok Inc. is seeking a Senior Software Engineer for the Ads Measurement team in the United States.

You will design scalable backend systems to measure ad effectiveness and own products like Split Test, CLS, and BLS, enabling advertisers to rigorously test campaigns. You will build large-scale data pipelines, collaborate across product, infra, and data science, and work with third-party partners for attribution while advancing privacy-compliant, multi-region infrastructure.

Qualifications

• Backend or data-intensive systems experience.
• Proficient in Python, Go, Java, or C/C++.
• Strong understanding of system design, algorithms, and data structures.
• Familiar with large-scale backend architecture or data infrastructure.
• Curiosity about new technologies and a self-starter mindset.

Responsibilities

• Design and develop highly scalable backend systems to measure Ads effectiveness.
• Own and expand core products like Split Test, CLS, and BLS, enabling advertisers to rigorously test and evaluate campaign performance.
• Build and optimize large-scale data pipelines and real-time experimentation frameworks to power critical advertiser insights.
• Collaborate cross-functionally with product, infrastructure, and data science teams to translate ideas into measurable impact.
• Integrate with third-party measurement partners to enable comprehensive attribution and validation.
• Help evolve the underlying tech infrastructure to support privacy compliance, high QPS environments, and multi-region deployment.
• Mentor junior engineers to grow and help build a strong engineering team.

Skills

Backend dev

Python

Go

Java

C/C++

System design

Job description

TikTok Inc. is seeking a Senior Software Engineer for the Ads Measurement team in the United States.

You will design scalable backend systems to measure ad effectiveness and own products like Split Test, CLS, and BLS, enabling advertisers to rigorously test campaigns. You will build large-scale data pipelines, collaborate across product, infra, and data science, and work with third-party partners for attribution while advancing privacy-compliant, multi-region infrastructure.