reddit

Machine Learning Engineer, Ads Optimization

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At a Glance

Location
United States
Work Regime
remote
Experience
5+ years
Posted
2026-06-26T15:47:57-04:00

Key Requirements

Required Skills

JavaKafkaMachine LearningPythonRedis

Certifications

  • CPA

Domain Knowledge

  • Advertising
  • Engineering

Benefits & Perks

Health Insurance

edical, dental, and vision insurance, 401(k) program with employer match, ge

Requirements

of experience building, deploying, and operating machine learning systems in production (for IC4, typically 5+ years).

, or similar languages, with solid software engineering fundamentals.

Experience designing scalable data processing systems (e.g., Spark, Kafka, Airflow, BigQuery, Redis).

Demonstrated ability to translate ambiguous product or business problems into solutions and to improve measurable metrics.

advertising/auction systems

, online marketplaces, or search/ranking systems at scale, particularly in:

Compensation & Benefits

Comprehensive Healthcare Benefits and Income Replacement Programs

401k with Employer Match

Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support

Family Planning Support

Gender-Affirming Care

Mental Health & Coaching Benefits

Responsibilities

Machine Learning Engineers (IC3 and IC4)

to build and evolve the

auction, bidding and budgeting

systems that power Reddit Ads.

Design and implement

optimization algorithms

Team

This role sits in the

Ads Optimization

and

Ads Marketplace Quality (AMQ)

organizations, which are responsible for the health and performance of Reddit’s ads marketplace. We focus on:

Designing the