Senior Staff Machine Learning Engineer, GenAI Platform

Reddit is a community of communities. It’s built on shared interests, passion,

and trust, and is home to the most open and authentic conversations on the

internet. Every day, Reddit users submit, vote, and comment on the topics they

care most about. With 100,000+ active communities and approximately 126 million

daily active unique visitors, Reddit is one of the internet’s largest sources of

information. For more information, visit www.redditinc.com

[http://www.redditinc.com/].

Who We Are:

The Machine Learning Platform team at Reddit is a high-impact team that owns the

infrastructure that powers recommendations, content discovery, user and content

quantification, while directly impacting other teams such as Growth, Ads, Feeds,

and Core Machine Learning teams.

What You’ll Do

• As a Senior Staff Software Engineer, you will help define and lead the vision
• for Reddit’s large-scale GenAI Platform, shaping the strategy, architecture, and
• operating model that enable teams across the company to build, deploy, and scale
• generative AI products with confidence.
• Contribute to the design, implementation, and maintenance of the LLM Gateway,
• focusing on features like unified API endpoints for internal/externally hosted
• LLM, rate/token limit management, and intelligent failover mechanisms to boost
• uptime and reliability.
• * Lead and execute the vision, strategy, and roadmap for Reddit’s large-scale
• GenAI Platform.
• * Define the platform architecture and operating model that enable teams to
• build, deploy, and scale GenAI products reliably.
• * Drive the strategy for a unified LAG Gateway supporting internally and
• externally hosted LLMs through consistent APIs and abstractions.
• * Set the direction for core platform capabilities such as rate and token limit
• management, intelligent failover, and production resilience.
• * Shape Reddit’s approach to an enterprise-grade RAG system
• * Establish the strategic direction for agentic AI workflows and tool-use
• patterns across the platform.
• * Own the end-to-end platform strategy from concept through production adoption
• and long-term evolution.
• * Drive MLOps and LLMOps standards across CI/CD, testing, versioning,
• evaluation, and lifecycle management.
• * Define best practices for observability, monitoring, governance, and
• operational excellence across GenAI systems.
• * Partner across engineering, product, and leadership to align platform
• investments with company priorities and user needs.
• * Champion platform thinking with a strong focus on scalability, reliability,
• performance, and developer experience.
• * Influence technical direction across teams by turning emerging AI
• capabilities into a scalable platform strategy.
• Who You Might Be:
• * 10+ years of experience in ML Engineering, AI Platform Engineering, or Cloud
• AI Deployment roles.
• * Have a track record of leading technical strategy and delivering AI platforms
• in cloud-based production environments at scale.
• * Demonstrate strong execution by turning strategy into action, driving complex
• initiatives end to end, and consistently delivering high-quality platform
• outcomes.
• * Bring deep experience operating Kubernetes and other orchestration systems in
• large-scale production environments.
• * Deep experience with cloud-based technologies for supporting an ML platform,
• including tools like AWS, Google Cloud Storage, infrastructure-as-code
• (Terraform), and more
• * Proficiency with the common programming languages and frameworks of ML, such
• as Go, Python, etc.
• * Excellent communication skills with the ability to articulate technical AI
• concepts to non-technical stakeholders
• * Strong focus on scalability, reliability, performance, and developer
• experience. You are an undying advocate for platform users and have a deep
• intuition for the genAI product development lifecycle.
• * Strong knowledge of model serving, inference pipelines, monitoring, and
• observability for AI systems is a plus

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/ [https://www.redditinc.com/careers/].

To provide greater transparency to candidates, we share base salary 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.

The base salary range for this position is:

$292,500—$409,500 USD

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 [https://redditinc.com/policies/candidate-privacy-policy].

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.