1 month ago

Senior Machine Learning Engineer, Ads Foundational Representations

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Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 16 hours agoStatus: Live

Job Summary

Lead end-to-end ML projects to build embeddings and representations for Reddit Ads, including multimodal content embeddings, knowledge graphs, and user intent modeling, collaborating with product and data science to improve relevance and ranking, while ensuring scalable and maintainable ML systems.

Location: United Kingdom

Workplace: Remote

Employment Type: Full time

Job Function: Data Science & Machine Learning

Key Responsibilities

•Developing new or iterating on existing embedding models for advertising use cases, ranging from aggregation pipelines to two-tower architectures and sequence models.
•Working with local and 3rd-party LLMs/VLMs: extract representations, develop evaluation methodologies, prompt tune and fine-tune large models to build state-of-the-art embeddings.
•Building data processing and inference pipelines for the models we develop.
•Qualitative and quantitative evaluation of the various features we develop, end-to-end experimentation from internal benchmarks to downstream recommender system offline metrics to online experiments.
•Ensuring the reliability, scalability, and performance of the ML systems by writing automated tests, monitoring performance, and implementing best practices for model management.

Pay and Benefits

Perks:Remote WorkMedicalDentalPensionParental LeaveLearning BudgetPaid Leave

Key Requirements

•5+ years of hands-on experience with the full lifecycle of designing, training, evaluating, testing, and deploying industry-level models.
•Experience building NLP or CV models and integrating them at scale.
•Experience developing complex features/embeddings for downstream models.
•Experience with mainstream DL frameworks: PyTorch or TensorFlow.
•Excitement about working with data and readiness to look behind the metric numbers.

Experience:5+ yearsAdvertisingMachine learningRecommender systems

Languages:English

Tech Stack:PythonPyTorchTensorFlowAirflowBigQueryRayK8sKafkaGCP

Company Brief

Operates Reddit, a large online community and discussion platform where users submit content, comment, and vote across topic-based communities (subreddits); monetizes via advertising, premium subscriptions, and awards.

Industry: Digital Media

Company Size: Enterprise (1,001+ employees)

Growth: Public Company

Valuation: Public Company (Market Cap in USD)

Funding: IPO / Publicly Listed

Headquarters: San Francisco, United States

Founded: 2005

Website LinkedIn

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