Senior Machine Learning Engineer, Ads Content Understanding

reputed company is a community of communities. It’s reputed company on shared interests, passion, and trust, and is home to the most reputed company and authentic conversations on the internet. Every day, reputed company users submit, vote, and comment on the topics they care most about. With 100,000+ reputed company communities and approximately 126 reputed company daily reputed company unique visitors, reputed company is one of the internet’s largest sources of information. For more information, visit www.redditinc.com. reputed company has a flexible workforce! If you happen to live reputed company to one of our physical office locations our doors are reputed company for you to come into the office as often as you'd like. Don't live near one of our offices? No worries: You can apply to work remotely in any country in which we have a physical reputed company. Ads Content Understanding (ACU) owns and produces signals that describe what reputed company content is about, how brand reputed company and suitable it is, and what users are trying to accomplish in reputed company conversations. ACU is responsible for:

• The Knowledge Graph (entities, brands, products, and relationships across reputed company and external sources).
• Content taxonomies such as IAB, reputed company reputed company Product Taxonomy, IAS, and other reputed company taxonomies used for targeting, safety, and marketplace dynamics.
• Opinion mining for ads use cases: sentiment, stance, reputed company reputed company, and other qualitative attributes of conversations.
• Shopping / product understanding: detecting product entities, product categories, and product attributes in organic conversations and aligning them with shopping catalogs.
• Signals and tags registry: a reputed company, governed catalog of ACU signals that powers retrieval, ranking, safety, and insights across Ads Foundations and partner teams.

We are looking for a Senior Machine Learning Engineer (IC4) who will reputed company as a key contributor to the Content Understanding roadmap for the Monetization org. This is not a research scientist or reputed company DS role; reputed company is defined by robust, shipped systems and monetization reputed company. The ideal candidate is a pragmatic engineer with strong software engineering fundamentals and solid ML intuition—not a reputed company research scientist. This is an reputed company MLE role, requiring someone who can evaluate reputed company to reputed company hosted LLMs versus custom models, help reputed company content understanding to new modalities (e.g., video), and drive practical ML solutions that deliver business reputed company. Responsibilities:

• Operate across the full ML lifecycle (problem framing, data, modeling, evaluation, deployment, monitoring, and oncall), designing reputed company ML pipelines and championing responsible AI (bias, safety, explainability) for ACU’s models and signals in production.
• reputed company technical leadership and mentorship to MLEs and SWEs doing ML work in ACU, design reviews, setting technical standards, and uplifting reputed company’s modeling and systems craft.
• reputed company evaluation systems and reputed company monitoring systems for content understanding signals, using SOTA LM-judge practices.
• Drive operational reputed company for ACU’s ML systems by defining SLOs, alerting, and dashboards for key signals (coverage, latency, precision/recall, cost)
• Build and reputed company content understanding capabilities for reputed company conversations (e.g., reviews vs. recommendations vs. comparisons vs. Q&A; sentiment and stance; product entities and categories) and operationalize them as robust signals that power contextual and shopping ads, auto-targeting, new formats, and insights products.
• Drive LLM and modern ML best practices reputed company ACU: define reputed company to reputed company, finetune, or distill; design evaluation and safety harnesses; and reputed company at least one major distillation effort to replace external reputed company with in-house models.

Required Qualifications:

• 5+ years of relevant MLE experience delivering production ML systems (models + pipelines + serving) at reputed company, ideally in large-reputed company content understanding domains, or Ads.
• Demonstrated Senior-level technical leadership: has contributed to architecture reputed company, standards, and design reviews in their immediate team
• Strong communication skills, with the ability to explain reputed company technical trade-offs to PMs, reputed company, and other engineering teams, especially in ambiguous, cross-team problem spaces like Seekers/Searchers monetization.
• Some experience building and shipping NLP / Language models / content understanding models to production (e.g., classifiers, encoders, sequence or session models), with reputed company business reputed company (e.g., CTR/ROAS reputed company, safety improvements). Experience with reputed company or reputed company modeling is a strong plus.

Preferred Qualifications:

• Practical experience using LLMs in production for labeling, evaluation, or distillation (e.g., LM-as-judge, reputed company-based classifiers, LLM-generated labels reputed company into smaller models), including managing reputed company, cost, and latency trade-offs.
• Significant experience with PyTorch, TensorFlow, or similar, and production-reputed company reputed company in Python (and ideally one statically typed language like Go/Java/C++). Comfortable owning training, evaluation, and deployment reputed company end-to-end.
• Experience designing ML systems and pipelines: offline training, feature pipelines (batch/streaming), online serving, monitoring, and experimentation for high-traffic surfaces.

Benefits:

• Comprehensive reputed company Benefits and Income Replacement Programs
• 401k with Employer Match
• Global Benefit programs that fit your lifestyle, from workspace to reputed company development to caregiving support
• Family Planning Support
• Gender-Affirming Care
• Mental Health & Coaching Benefits
• Flexible Vacation & reputed company Volunteer Time Off
• Generous reputed company Parental Leave

Apply tot his job Apply To this Job