Senior Machine Learning Engineer, Ads Platform (Remote)

Segment (Twilio); San Francisco (CA); On-site; USD 230,000 - 322,000; Full time

Benefits offered by this job

Healthcare benefits

401k match

Global benefit programs

Family planning support

Gender-affirming care

Mental health benefits

Flexible vacation

Parental leave

Job summary

Reddit is seeking a senior ML engineer to design, train, and deploy advanced models powering its online advertising ranking and optimization platforms. You will lead end-to-end model lifecycles, collaborate across product and data teams, and mentor engineers.

A Master’s degree and 3 years of related experience are required, with telecommuting as an option. The role emphasizes scalable modeling, causal experiments, and shaping long-term modeling strategy across ad domains, including conversion

Qualifications

• Master’s degree in Computer Science, Engineering (any field) or related quantitative discipline with 3 years of related experience.
• Strong proficiency in Python, Java and Scala; knowledge of C++, Go, or Rust.
• Experience with major ML frameworks and libraries and large-scale data processing.

Responsibilities

• Design, develop, and train large-scale machine learning models for online advertising ranking and optimization.
• Lead feature representations, embeddings, signals, and cross-session user behavior modeling.
• Own end-to-end model lifecycle: architecture, experimentation, deployment, monitoring, and infrastructure.
• Collaborate with product, data, and infra teams to translate business needs into scalable modeling solutions.
• Provide technical leadership and mentorship to ML engineers and establish modeling best practices.

Skills

Python

Java

Scala

C++

Go

Rust

ML frameworks

Statistics & experimentation

Data processing

Production systems

Leadership

Education

Master’s degree in Computer Science, Engineering or related quantitative discipline

Job description

Reddit is seeking a senior ML engineer to design, train, and deploy advanced models powering its online advertising ranking and optimization platforms. You will lead end-to-end model lifecycles, collaborate across product and data teams, and mentor engineers.

A Master’s degree and 3 years of related experience are required, with telecommuting as an option. The role emphasizes scalable modeling, causal experiments, and shaping long-term modeling strategy across ad domains, including conversion