Who you are

• 5+ years of experience building deep learning models using mainstream ML frameworks (TensorFlow, PyTorch)
• 5+ years of experience training, evaluating, testing, and deploying industry-level models
• 5+ years of experience orchestrating data generation pipelines on large-scale datasets
• Successful track record of applying machine learning techniques to real-world problems
• Fluent in data analysis and SQL
• First-hand familiarity with AB testing using an experimentation platform
• Excellent communication skills. You collaborate effectively with teams in a fully remote environment and discuss complex topics with technical and non-technical audiences
• Experience writing production-quality software (preferred Python or Go)
• Experience with content recommendations and personalization is a plus
• Passionate about building delightful products for users
• Strong organizational skills, the ability to prioritize tasks and keep projects on schedule
• Entrepreneurial spirit. You are self-directed, innovative, and biased towards action in fast-paced environments. You love to build new things and thrive in ambiguity
• BS degree in Computer Science, a similar technical field of study or equivalent practical experience

What the job involves

• The Growth organization at Reddit connects users to their communities and creates engaging loops to encourage them to keep coming back
• The team is a central part of our product and ensures that new users in our platform have a meaningful experience
• We drive company-level impact and we push forward the cutting edge of engineering, using tools such as ML and LLMs, to drive sustainable user growth across our markets
• We are seeking a Senior Machine Learning Engineer to join the Growth team responsible for building users’ very first experiences on Reddit–the onboarding flow, first and early feeds, and notifications
• This is a high impact role where you will own projects from ideation to production, working with our super-talented cross-functional team
• You'll closely collaborate with product and design stakeholders, and be responsible for the engineering architecture and execution of key product features
• You will also identify opportunities to use, configure, and deploy ML models and/or LLMs to create or improve product features
• You will provide technical direction to junior engineers
• Use ML and/or LLMs to personalize first and early user experiences on Reddit
• Build systems for real-time feature fetching and model inference
• Build systems for recurring training of models using modern architectures (deep learning, transformers or other sequential models)
• Work closely with ML Platform teams to provide feedback on and improve Reddit’s ML infrastructure
• Work with Product and Design partners to identify user problems, and design solutions to these problems using ML and/or LLMs
• Contribute meaningfully to our team’s strategy. We give everyone a seat at the table and encourage active participation in planning our future. Don’t just come along for the ride
• Participate in product reviews and team meetings, providing technical insight. Help scope, estimate, and prioritize between conflicting needs
• Foster a healthy engineering culture and collaborate with other engineers

Benefits

• Comprehensive health benefits
• Flexible vacation & Reddit global days off
• Family planning funds & 4+ months paid parental leave
• Personal & professional development funds
• Paid volunteer time off
• Workspace & home office benefits