Reddit, Inc. · 5 days ago
Staff Machine Learning Engineer, Ads Creative Effectiveness
United States
Full-time
Remote
Lead/Staff
$230K/yr - $322K/yrReddit is a community-driven platform known for its authentic conversations and vast user engagement. They are seeking a Staff Machine Learning Engineer to join their Ads Creative Effectiveness team, focusing on building generative AI products that enhance ad campaigns through advanced creative workflows and machine learning techniques.
ContentNewsSocial MediaSocial Network
Responsibilities
Architect and implement state-of-the-art pipelines for ad creative generation
Build editing capabilities allowing advertisers to smart-crop, inpaint, outpaint, resize, and style-transfer assets while maintaining strict brand guidelines
Adapt large vision-language models to understand 'winning' ad aesthetics
Design low-latency inference stacks for diffusion and transformer models
Engineer robust filtering and safety systems to ensure compliance and safety in generated content
Collaborate with Product, Sales, Policy, UX, and sibling Ads ML teams to integrate ACE capabilities into the Ad Manager UI and the ad delivery path
Embed brand-safety filters, copyright checks, and human-in-the-loop escalation paths to protect users and advertisers
Qualification
Required
Deep ML Expertise: Hands-on experience with tree models, neural nets, ranking, and especially LLM/VLM fine-tuning & RLHF/RLPF for ads
Quant & Experimentation Chops: Comfort with uplift metrics, variance, minimum detectable effects and experimentation setups for generative systems
Ads / Marketplace Insight: Understanding auction dynamics and advertiser pain points to create tools that drive revenue and retention
Startup Mindset: Bias to action, comfort with ambiguity, and scrappiness: ACE evolved from a startup acquisition and still moves fast
Communication Superpowers: Able to distill complex ML trade-offs for executives, product managers, and non-technical stakeholders alike
Prior work on ad creative tooling: Headline generators, image generators, pre-test models, editing flows for the advertiser
Preferred
Experience navigating brand-safety, privacy, or copyright frameworks in generative AI products
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.
Founded in 2005
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
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2026-01-13
Search Engine Journal
2026-01-11
2026-01-09
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