Senior Machine Learning Engineer, Ads Foundational Representations

Reddit, Inc.AmsterdamRemoteFull-time20 Jul 2026

Reddit is hiring a Staff Machine Learning Engineer for the Ads Foundational Representations team, based remotely in the UK or Netherlands. The role involves setting technical direction, leading cross-functional ML projects, and building embeddings for ads, posts, and users. Requires 7+ years of experience, staff-level leadership, and expertise in NLP/CV and deep learning frameworks.

What you'll do

Providing technical leadership and mentorship to MLEs in the team
Developing technical strategy for content-based embeddings & relevance for Ads
Developing new or iterating on existing embedding models for advertising use cases
Working with local and 3rd-party LLMs/VLMs 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
Ensuring the reliability, scalability, and performance of the ML systems
Participating in modeling and coding reviews
Collaborating with cross-functional teams to understand business requirements

What you need

Must-have

Machine LearningDeep LearningPyTorchTensorFlowNLPComputer VisionEmbeddingsLLMs

Nice-to-have

PythonApache AirflowBigQueryRayKubernetesApache KafkaGCP

Soft skills

CommunicationLeadershipMentoringCollaborationProblem Solving

Machine LearningStaff EngineerAdsEmbeddingsRemoteNetherlandsUKRedditNLPDeep Learning

/What you'll do

/What you need

Must-have

Nice-to-have

Soft skills

What you'll do

What you need