Remote opportunity at
RedditStaff Machine Learning Engineer, App Ads Modeling
Reddit operates a major online ecosystem featuring over 100,000 active communities and approximately 130 million daily active unique visitors where individuals engage in conversations based on…
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About This Role
Reddit operates a major online ecosystem featuring over 100,000 active communities and approximately 130 million daily active unique visitors where individuals engage in conversations based on shared interests. The organization is currently hiring a remote Staff-level Machine Learning Engineer to join the Ads Ranking Org specifically within the App Ads Modeling team. This position focuses on advancing ad ranking capabilities through sophisticated model architectures, contextual embeddings, and conversion-optimized modeling. Ideal…
Job Description
Reddit operates a major online ecosystem featuring over 100,000 active communities and approximately 130 million daily active unique visitors where individuals engage in conversations based on shared interests. The organization is currently hiring a remote Staff-level Machine Learning Engineer to join the Ads Ranking Org specifically within the App Ads Modeling team.
This position focuses on advancing ad ranking capabilities through sophisticated model architectures, contextual embeddings, and conversion-optimized modeling. Ideal applicants will bring extensive experience in end-to-end modeling alongside a thorough grasp of modern deep learning methodologies. While prior advertising sector background is advantageous, candidates with strong profiling in recommendation systems, search relevance, or related performance-oriented fields are also encouraged to put forward their applications.
The person in this role will build advanced machine learning models, refine feature pipelines, and define the long-term modeling trajectory across several specialized domains. In addition to technical execution, the position involves mentoring colleagues and sharing industry best practices throughout the organization. Reddit supports a flexible working model with optional office spaces available in New York, San Francisco, Los Angeles, and Chicago for employees who prefer hybrid or onsite arrangements.
Responsibilities
- Design and train advanced machine learning models such as deep neural networks and transformers for ad ranking
- Develop and refine features that incorporate contextual signals, embeddings, and cross-session user behavior
- Partner closely with product, data, and infrastructure teams to oversee end-to-end model deployment and performance review
- Mentor other machine learning engineers and share modeling best practices across the organization
- Define the long-term modeling direction across domains including conversion, shopping, app ads, and brand advertising
Requirements
- Seven or more years of overall industry experience with a substantial background in applied machine learning roles
- Demonstrated expertise using deep learning architectures and standard machine learning frameworks like PyTorch and TensorFlow
- Solid background working within ads ranking, recommendation systems, or related performance-driven domains
- Hands-on experience handling complex feature pipelines and large-scale datasets
- Strong experimental and problem-solving abilities along with a history of delivering high-impact production models
- Familiarity with state-of-the-art models for advertising or recommendation systems alongside an understanding of relevant funnels
Qualifications
- Direct background in app ads, conversion modeling, or brand and performance advertising
- Experience working inside ad marketplaces at peer organizations
- Industry contributions, patents, or published papers concerning applied machine learning or ranking systems
Core Skills
Benefits
- Full-time remote work opportunity with optional access to physical offices in New York, San Francisco, Los Angeles, and Chicago
- Comprehensive healthcare coverage paired with income replacement programs
- Employer-matched 401(k) retirement plan
- Global lifestyle benefits covering workspaces, caregiving support, and professional development
- Family planning assistance, gender-affirming care, and mental health or coaching resources
- Flexible vacation policies and paid volunteer time off
- Generous paid parental leave
Frequently Asked Questions
What is the remote policy for this role?
This is a 100% remote opportunity, though hybrid and onsite options are available at Reddit offices located in New York, San Francisco, Los Angeles, and Chicago.
What is the salary range for the Staff Machine Learning Engineer position?
The base salary range for this position is $230,000 to $322,000 USD, with final offers determined by factors such as skills, depth of experience, and credentials. The role is also eligible for equity in the form of restricted stock units.
What level of experience is required to apply?
Candidates must have seven or more years of industry experience, which includes several years working in applied machine learning roles.
Sample Interview Questions
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