Senior Machine Learning Engineer, Safety

Reddit, Inc. is a community of communities, built on shared interests and trust, and is home to one of the largest sources of information on the internet. The Safety ML team is seeking a Senior Machine Learning Engineer to develop and optimize safety systems using state-of-the-art large language models, collaborating with various teams to ensure user safety as Reddit continues to grow.

Responsibilities:

• Design, develop, optimize and deploy ML models, including large language models, for various natural language processing tasks
• Implement and maintain training pipelines, leveraging distributed training and optimizing for performance and efficiency
• Collaborate with cross-functional teams to gather requirements, define model architectures and iterate on model development
• Conduct model evaluations, performance analysis, and optimization to improve model accuracy and reduce biases
• Stay up-to-date with the latest research and advancements in the field of natural language processing, multimodal signals, and large language models
• Contribute to the development of best practices, guidelines, and ethical AI principles for responsible ML development and deployment

Requirements:

• 5+ years of relevant MLE experience in natural language processing, deep learning, and AI model development
• Strong background in Python programming and deep learning frameworks like TensorFlow, PyTorch, or Hugging Face Transformers
• Expertise in distributed training frameworks (e.g., Ray Training, PyTorch Distributed), and efficient utilization of hardware resources
• Proficiency in data preprocessing, tokenization, embeddings, and language modeling techniques
• Passion for developing scalable, well-designed, and responsible AI solutions that positively impact society
• Excellent communication and collaboration skills, with the ability to discuss complex technical topics with diverse teams
• Entrepreneurial spirit, self-motivation, and a bias towards action in fast-paced environments