Reddit

Senior Staff Machine Learning Engineer, Ads Measurement

United States

Not SpecifiedCompensation
Senior (5 to 8 years)Experience Level
Full TimeJob Type
UnknownVisa
Advertising, Biotechnology, Social MediaIndustries

Position Overview

  • Location Type: Remote
  • Employment Type: Full-time
  • Salary: Not specified

Reddit is a community of communities. It’s built on shared interests, passion, and trust and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 101M+ daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit redditinc.com.

The Ads Measurement Org is dedicated to enhancing the efficiency and user-friendliness of our advertising platform. We specialize in privacy enhancing technologies, identity resolution, and modeled conversions.

We’re looking for a hands-on Senior Staff Machine Learning Engineer with deep expertise in identity resolution and graph-based systems, who can lead end-to-end Ads initiatives across engineering and cross-functional teams. You will drive architectural decisions, mentor your peers, and dive into technical challenges directly when the team needs it. Our diverse group of engineers, product managers, data scientists, and ads specialists is excited to welcome you on board!

Requirements

  • Experience: 8+ years of professional software engineering experience, with at least 3+ years focused on ML-driven systems at scale.
  • Identity Graphs: Demonstrated experience architecting and building identity graphs, device graphs, or similar identity matching solutions leveraging probabilistic techniques.
  • Identifiers: Strong knowledge of various identifiers (cookies, hashed emails, phone numbers, IP addresses, user agents) and their use in identity resolution.
  • Machine Learning Frameworks: Proficiency in machine learning frameworks (e.g., TensorFlow, PyTorch) and libraries for feature engineering, model training, and inference.
  • Data Infrastructure: Solid understanding of large-scale data processing, distributed computing, and data infrastructure (e.g., Spark, Kafka, Beam, Flink).
  • Leadership: Proven technical leadership in cross-functional settings, driving architectural decisions and influencing stakeholders (product, data science, privacy, legal).
  • Communication & Collaboration: Excellent communication, mentoring, and collaboration skills to align teams on a long-term vision for identity resolution.

Responsibilities

  • Technical Strategy: Lead the technical strategy and architecture for the company’s identity resolution system, ensuring accuracy, scalability, and compliance with privacy requirements.
  • ML Model Development: Develop and refine ML models for probabilistic user matching using multiple identifiers (cookies, IP addresses, hashed emails, phone numbers, user agents).
  • ML Workflow Management: Oversee end-to-end ML workflows—from data ingestion and feature engineering to model training, evaluation, and deployment—optimizing for performance and cost.
  • Cross-Functional Collaboration: Partner with cross-functional teams (e.g., product management, data science, platform engineering, privacy, legal) to define the roadmap and set long-term goals.
  • Best Practices & Governance: Establish engineering best practices, code quality standards, and data governance guidelines to ensure maintainability and trustworthiness of the identity system.

Application Instructions

  • Not specified.

Skills

Identity resolution
Graph-based systems
Probabilistic techniques
Identifiers (cookies, hashed emails, phone numbers, IP addresses, user agents)
Machine learning frameworks (TensorFlow, PyTorch)
Feature engineering
Model training
Inference
Large-scale data infrastructure

Reddit

Online platform for community discussions and content

About Reddit

Reddit is an online platform that allows users to post, vote, and comment on content within various communities based on shared interests. Users can engage in discussions on a wide range of topics, from news and sports to entertainment and hobbies. The platform features a unique voting system where content can receive upvotes or downvotes, helping the most popular posts gain visibility. Reddit generates revenue primarily through advertising, premium memberships, and the sale of virtual goods like Reddit Coins. Unlike many other social media platforms, Reddit emphasizes community-driven content and discussions, creating a space for authentic interactions among users. The goal of Reddit is to foster engagement and connection among its diverse user base.

San Francisco, CaliforniaHeadquarters
2005Year Founded
$1,177.1MTotal Funding
IPOCompany Stage
Consumer Software, EntertainmentIndustries
1,001-5,000Employees

Benefits

Comprehensive health benefits
Flexible unlimited vacation days & monthly global wellness days
Family planning funds & 4+ months paid parental leave
Personal & professional development funds
Paid volunteer time off
Workspace & home office benefits

Risks

Reliance on advertising revenue faces competition from platforms like TikTok and Instagram.
AI tools like 'Reddit Answers' may raise privacy and data usage concerns.
NFT market expansion exposes Reddit to volatility and regulatory scrutiny.

Differentiation

Reddit's unique voting system promotes engaging and authentic content discovery.
The platform's diverse communities cater to a wide range of interests and discussions.
Reddit's AI-powered tools enhance user experience and content moderation.

Upsides

Reddit's confidential IPO plans signal potential growth and market expansion.
AI-driven content moderation can improve user safety and platform reliability.
Expansion into blockchain and NFTs opens new revenue streams and user engagement.

Land your dream remote job 3x faster with AI