Reddit, Inc. · 1 day ago
Senior Machine Learning Engineer, Ads
United States
Full-time
Remote
Mid, Senior Level
$217K/yr - $303K/yr
3+ years expReddit, Inc. is a community-driven platform that fosters open conversations and engagement among users. They are seeking a Senior Machine Learning Engineer to lead the development and optimization of machine learning systems that enhance ad delivery and performance for advertisers.
ContentNewsSocial MediaSocial Network
Responsibilities
Design, build, and deploy industrial-level machine learning models to solve critical problems in ad ranking, bidding, and optimization
Take full ownership of the ML lifecycle, from ideation and research to building scalable serving systems and maintaining models in production
Perform systematic feature engineering to transform raw, diverse data into high-quality features that drive model performance
Work closely with product managers, data scientists, and engineers to translate business challenges into effective ML solutions
Improve the reliability and stability of our ML systems by building robust monitoring, alerting, and automated retraining pipelines
Research new algorithms, stay up-to-date with state-of-the-art ML techniques, and contribute to the team’s strategy and roadmap
Qualification
Required
Experience working in the Ads domain
At least 3-5+ years of end-to-end experience in training, evaluating, and deploying machine learning models in a production environment
Proficient in one or more general-purpose programming languages (e.g., Python, Scala) and have a solid understanding of software development best practices
Hands-on experience with a major machine learning framework (e.g., TensorFlow, PyTorch) and a deep understanding of core ML concepts and algorithms
Proven ability to work effectively with cross-functional teams, including product managers and data scientists, to translate business needs into technical solutions
Track record of using machine learning to drive key performance indicator (KPI) wins and solve complex, real-world problems
Preferred
Experience or interest in the advertising business and understanding customer needs
An advanced degree (MS/PhD) in a quantitative field
Familiarity with distributed systems and large-scale data processing technologies (e.g., Spark, Kafka)
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
Flexible Vacation & Paid Volunteer Time Off
Generous Paid Parental Leave
Company
Reddit, Inc.
Reddit is the heart of the internet, where millions of people get together to talk about any topic imaginable.
1001-5000 employees
H1B Sponsorship
Reddit, Inc. has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (99)
2024 (63)
2023 (76)
2022 (70)
2021 (68)
2020 (39)
Funding
Current Stage
Public CompanyTotal Funding
$1.33BKey Investors
FidelityVy CapitalTencent
2024-03-21IPO
2021-08-12Series F· $410M
2021-02-08Series E· $367.95M
Leadership Team
Steve Huffman
CEO
Chris Slowe
CTO
Recent News
Search Engine Journal
2026-01-11
2026-01-09
2026-01-09
Company data provided by crunchbase