Senior Staff Machine Learning Engineer, Reddit

Search & Recommendation

$266-372.4k

+ Eligible to receive equity in the form of restricted stock units

Python

Tensorflow

PyTorch

Semantic

Golang

Expert level

Remote from US

Online platform for thoughts, experiences and discussions

Be an early applicant

Online platform for thoughts, experiences and discussions

1001+ employees

B2CB2BPublishingContentSocial MediaCommunity

Be an early applicant

$266-372.4k

+ Eligible to receive equity in the form of restricted stock units

Python

Tensorflow

PyTorch

Semantic

Golang

Expert level

Remote from US

1001+ employees

B2CB2BPublishingContentSocial MediaCommunity

Company mission

To empower communities, and make their knowledge accessible to all.

Job

Company

Role

Who you are

10+ years of industry experience with deep expertise in large-scale search and recommendation systems
Proven ability to identify key opportunities, define roadmaps and drive scalable improvement in search relevance
Strong experience in building and deploying large-scale ML models using frameworks such as PyTorch or Tensorflow
Experience working with LLM in production, including evaluation, tuning and deployment
In-depth knowledge and experience working with lexical and semantic retrieval systems
Proficiency in object-oriented programming (Python, Golang)
Nice to have: experience building production Agentic AI frameworks

What the job involves

Redditors produce the most amazing content about every niche topic in the world – this underleveraged data coupled with modern advances in AI systems is presenting a unique opportunity to quickly build a new kind of search engine. As a Senior Staff, you will design and build a large-scale system that powers end-to-end search relevance at scale.
You’ll work across multiple areas of the stack, including query understanding, retrieval, ranking, features, measurement, LLM-based answers, RAG etc, partnering deeply with product, org leads, and other XFN to deliver reliable, high quality systems that can help Reddit Search scale to billions of users
Contribute to advancing Reddit's Search and Recommendations products by designing AI-driven Search experience prioritizing seamless and delightful user experience
Deeply understand the Reddit search product and drive the vision for the search relevance team
Enhance core search retrieval and ranking, design and implement new search engine features, build and scale search indexes, develop and test new pipeline components. You will also deploy ML models, integrate LLMs, and ensure robust monitoring and smooth product integration throughout the process
Collaborate across disciplines and with ML, Product, Infrastructure, and DS teams at Reddit to find technical solutions to complex challenges
Mentor and guide senior and staff engineers in the team
Influence org-wide technical direction and partner closely with senior leadership to shape the long-term roadmap

Our take

Reddits is an online platform that hosts thousands of message board communities (known as subreddits) designed to foster authentic human connection. With more than 100,000 communities covering everything from food, entertainment, and sports to niche interests for highly specific audiences, there's virtually a space for everyone.

The platform attracts over 52M daily users and more than 50B monthly page views. While these figures are smaller than those of social media giants like Facebook and X, Reddits stands out by offering easily discoverable communities where users can dive deep into virtually any topic imaginable.

Today, Reddit continues to grow its user base and expand its reach, remaining a unique hub for conversation,m connection, and shared interests. With its strong community-driven model and steady revenue streams, it's most definitely positioned to stay a central part of online culture for years to come.

Kirsty

Company Specialist at Welcome to the Jungle

Insights

Top investors

57% employee growth in 12 months

Glassdoor (3.7)

Company

Funding (last 2 of 6 rounds)

Aug 2021

$410m

SERIES F

Feb 2021

$250m

SERIES E

Total funding: $1.2bn

Company 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

Company HQ

SoMa, San Francisco, CA

Leadership

Steve Huffman

(Co-Founder & CEO)

After co-founding Reddit in 2005, they stepped away from the company to co-found Hipmunk, where they were the CTO for 5 years. They returned to Reddit in 2015, and have been the CEO since.

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