The Unified Embeddings team focuses on building highly expressive multi-entity large scale embeddings exploring architectures beyond standard two-tower approaches to enhance our recommendation systems at Reddit. This entails modeling various compound interactions and relationships between users and entities they interact with using Graphs and exploring Graph neural networks and transformers to encode them.
We are looking for a Principal Machine Learning Engineer to lead the design and architecture of GNN and transformers based multi-entity embedding generation actively participating in end-to-end implementation process including enabling efficient distributed training and serving for such architectures shaping the future of recommendation systems at Reddit.
If applying ML / AI in production to improve Reddit Relevance excites you, then you’ve found the right place.
RESPONSIBILITIES:
Lead the team that architects and designs GNN and transformers based multi-entity embedding generation.
- Define the technical roadmap and plan of execution in collaboration with Xfn partners.
- Develop and optimize large-scale graph-based machine learning pipelines for recommendation systems.
- Architect scalable and efficient GNN and transformers-based recommendation models that can process complex, interconnected data structures.
- Collaborate with cross functional business units such as Ads teams leveraging the models for upstream functions and improve relevance metrics.
- Collaborate with ML Infrastructure teams to enable distributed GPU based training and online serving architecture
- Lead feature engineering efforts to identify and curate expressive raw data to be used for creating embeddings
- Be a mentor and cross-functional advocate for the team
- Contribute towards team and product strategy, operations and execution at Reddit.
QUALIFICATIONS:
- 15+ years of Technical Leadership Experience
- Proven ability to lead ML initiatives, mentor engineers, and communicate complex concepts to cross-functional teams.
- Expertise in Graph Neural Networks, collaborative filtering, knowledge graphs, and deep learning for recommendations.
- Understanding of graph theory, network science, and representation learning technique
- Strong coding skills in Python and experience with ML frameworks like PyTorch Geometric (PyG), Deep Graph Library (DGL), TensorFlow, and scikit-learn.
- Solid understanding of ML infrastructure components and libraries (data parallel, model parallel, pipeline parallel, torch.inductor, model pruning, etc.) enabling efficient distributed training and inference.
Reddit is seeking an Engineering Manager as a technical leader for our Small to Medium Business (SMB) focused Advertiser Growth efforts. In this role, you will be responsible for developing the technical foundation for mission critical product pillars, collaborating across the company to deliver outcomes for the Reddit Ads Business, and leading the team responsible for acquiring new advertisers on Reddit.
This role provides an opportunity to partner closely with cross-functional teams such as product, design, marketing, data science, UX and Sales, and, ultimately, to make a large number of small to medium businesses successful on Reddit.
As a leader for all of these efforts, you will set the engineering strategy for building iteratively, shipping quickly, testing rigorously, and adding step-change capabilities towards our ambitious goals of multiplying many times over our number of monthly active advertisers. This is an exciting moment in Reddit’s journey where we have the knowledge, resources and infrastructure to bring Reddit’s unique products to more people and help more small businesses be successful on our platform. This is an impactful opportunity to lead a team through an existing period of worldwide user and advertiser growth.
Responsibilities
- Lead, coach, and grow a team of engineers across the stack, including mobile, frontend, and backend
- Collaborate with designers and product managers to discover and build new Ad functionality and products. Be a thought leader in this process.
- Maintain and enhance the team culture of fast iteration, experimentation, and collaboration.
- Ensure the long term success of both the product and the growth of our people
- Participate in and be the ultimate owner of the full development cycle: product ideation, design, development, QA, experimentation, analysis, and launch. You’ll be brainstorming, giving feedback on design docs, product specs and mocks, and generally helping out wherever is needed.
- Collaborate with multiple teams across the entire company to make SMBs successful on reddit
Required Qualifications
- Bachelor's degree (or foreign equivalent) in Computer Science, Computer Engineering, Engineering, Applied Sciences, Mathematics, Physics, or a related field
- Engineering leadership experience working across multiple teams
- At least 2 years of experience working on Ads products and/or growth engineering
- 5+ years of experience in software engineering
- Experience coordinating large-scale, cross-functional efforts that span different teams, and driving alignment
- Experience working with multiple teams in product & design
- Knowledge of full stack product development practices (Frontend, Mobile, Backend)
Preferred Qualifications:
- Experience working on SMB related products/projects
Reddit is seeking an Engineering Manager as a technical leader for our Small to Medium Business (SMB) focused Advertiser Growth efforts. In this role, you will be responsible for developing the technical foundation for mission critical product pillars, collaborating across the company to deliver outcomes for the Reddit Ads Business, and leading the team responsible for acquiring new advertisers on Reddit.
This role provides an opportunity to partner closely with cross-functional teams such as product, design, marketing, data science, UX and Sales, and, ultimately, to make a large number of small to medium businesses successful on Reddit.
As a leader for all of these efforts, you will set the engineering strategy for building iteratively, shipping quickly, testing rigorously, and adding step-change capabilities towards our ambitious goals of multiplying many times over our number of monthly active advertisers. This is an exciting moment in Reddit’s journey where we have the knowledge, resources and infrastructure to bring Reddit’s unique products to more people and help more small businesses be successful on our platform. This is an impactful opportunity to lead a team through an existing period of worldwide user and advertiser growth.
Responsibilities
- Lead, coach, and grow a team of engineers across the stack, including mobile, frontend, and backend
- Collaborate with designers and product managers to discover and build new Ad functionality and products. Be a thought leader in this process.
- Maintain and enhance the team culture of fast iteration, experimentation, and collaboration.
- Ensure the long term success of both the product and the growth of our people
- Participate in and be the ultimate owner of the full development cycle: product ideation, design, development, QA, experimentation, analysis, and launch. You’ll be brainstorming, giving feedback on design docs, product specs and mocks, and generally helping out wherever is needed.
- Collaborate with multiple teams across the entire company to make SMBs successful on reddit
Required Qualifications
- Bachelor's degree (or foreign equivalent) in Computer Science, Computer Engineering, Engineering, Applied Sciences, Mathematics, Physics, or a related field
- Engineering leadership experience working across multiple teams
- At least 2 years of experience working on Ads products and/or growth engineering
- 5+ years of experience in software engineering
- Experience coordinating large-scale, cross-functional efforts that span different teams, and driving alignment
- Experience working with multiple teams in product & design
- Knowledge of full stack product development practices (Frontend, Mobile, Backend)
Preferred Qualifications:
- Experience working on SMB related products/projects
Benefits:
- Comprehensive Healthcare Benefits and Income Replacement Programs
- 401k with Employer Match
- Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
- Family Planning Support
- Gender-Affirming Care
- Mental Health & Coaching Benefits
- Flexible Vacation & Paid Volunteer Time Off
- Generous Paid Parental Leave
Pay Transparency:
This job posting may span more than one career level.
In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit https://www.redditinc.com/careers/.
To provide greater transparency to candidates, we share base pay ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.
In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.
During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors.
Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.
Top Skills
Similar Jobs
What you need to know about the Seattle Tech Scene
Key Facts About Seattle Tech
- Number of Tech Workers: 287,000; 13% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Amazon, Microsoft, Meta, Google
- Key Industries: Artificial intelligence, cloud computing, software, biotechnology, game development
- Funding Landscape: $3.1 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Madrona, Fuse, Tola, Maveron
- Research Centers and Universities: University of Washington, Seattle University, Seattle Pacific University, Allen Institute for Brain Science, Bill & Melinda Gates Foundation, Seattle Children’s Research Institute
