Reddit, Inc. · 2 weeks ago
Director of Machine Learning, Safety & Mods
United States
Full-time
Remote
Director/Executive
$266K/yr - $365K/yr
10+ years expReddit is a community of communities, built on shared interests and trust, serving millions of users daily. The Director of Machine Learning will lead efforts to develop ML systems aimed at ensuring safety on the platform, overseeing a team that focuses on detecting and preventing harmful content and behavior.
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Responsibilities
Set the vision and strategy for applying ML to Trust & Safety, ensuring scalable, proactive protection against evolving abuse patterns
Lead and grow a high-performing Safety ML organization, including applied research, model development, productionization, and continuous improvement
Develop and deploy cutting-edge Safety ML systems (including fine-tuned LLMs and transformer models) that outperform state-of-the-art solutions in quality, latency, and efficiency
Partner with Trust & Safety, Product, Moderation, and AI/ML Platform teams to identify safety risks, emerging harm vectors, and ML opportunities that improve detection, enforcement, and user experience
Drive successful experimentation, evaluation, and model lifecycle management, ensuring high precision, recall, explainability, and policy alignment
Champion ethical and responsible AI practices in all Safety ML solutions
Track performance through metrics, research-based iteration, and alignment with Reddit’s safety policies and regulatory standards
Represent Safety ML leadership internally and externally — including conferences, publications, industry groups, and cross-company collaboration initiatives
Qualification
Required
10+ years of experience in Machine Learning, AI, or applied research, with a strong background in Trust & Safety, abuse prevention, detection, or content integrity
5+ years of experience leading multi-disciplinary ML teams (applied science, engineering, analytics) in a high-growth or high-impact environment
Proven track record of shipping ML systems at scale in production, ideally including transformer-based models and LLM fine-tuning
Depth in NLP, content understanding, detection systems, supervised and weak-supervision techniques
Strong cross-functional leadership skills, with ability to influence executives and foster alignment across Safety, Product, and Engineering
Thought leadership in responsible AI, safety ML research, or safety measurement frameworks
Entrepreneurial mindset — experience founding or scaling a product or ML org
Preferred
Experience building or operating real-time abuse detection and automated moderation systems in a complex user-generated content ecosystem
Prior work in consumer-facing tech, social platforms, or large-scale community-driven 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.
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
2026-01-09
2026-01-09
Social Media Today
2026-01-08
Company data provided by crunchbase