Staff Machine Learning Engineer, Ads Foundational Representations

Reddit
Netherlands, London
Workplace: RemoteFull timeFunction: Data Science & Machine LearningExperience: 5+ yearsSkills: ["Collaboration","Communication","Problem-solving"]

Senior ML Engineer responsible for end-to-end ML projects in the Ads Foundational Representations team. Develop and improve embeddings for ads, posts, and users; work with LLMs/VLMs and knowledge graph embeddings; build scalable data processing and inference pipelines; collaborate with Product and Data Science to optimize relevance and ranking while ensuring reliability and performance of ML systems.

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FursaFursa
Reddit
Reddit
3 months ago

Staff Machine Learning Engineer, Ads Foundational Representations

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Source: Company careers pageValidated by: Fursa AI
Last checked: 8 hours agoStatus: Live

Job Summary

Senior ML Engineer responsible for end-to-end ML projects in the Ads Foundational Representations team. Develop and improve embeddings for ads, posts, and users; work with LLMs/VLMs and knowledge graph embeddings; build scalable data processing and inference pipelines; collaborate with Product and Data Science to optimize relevance and ranking while ensuring reliability and performance of ML systems.
Location: Netherlands, London
Workplace: Remote
Employment Type: Full time
Job Function: Data Science & Machine Learning
Seniority: Sr. Manager level

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.

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 learningAI
Skills:CollaborationCommunicationProblem-solving
Languages:English
Tech Stack:PythonPyTorchAirflowBigQueryRayKubernetesKafkaGCPLLMsVLMs

Company Brief

Reddit
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
WebsiteLinkedIn