Senior Staff Software Engineer, Reddit
Indexing & Retrieval Platform
$279.2-390.9k
+ Equity
Online platform for thoughts, experiences and discussions
Open for applications
Online platform for thoughts, experiences and discussions
1001+ employees
Open for applications
$279.2-390.9k
+ Equity
1001+ employees
Company mission
To empower communities, and make their knowledge accessible to all.
Role
Who you are
- 10+ years of experience in software engineering, specializing in Indexing and Retrieval systems
- 3+ years in technical leadership, architecting and scaling distributed systems in production environments
- Deep expertise in large-scale data platforms, including batch indexing and stream processing
- Proven experience designing and operating large-scale, low-latency retrieval services
- Expertise in lexical and vector search retrieval technologies, such as Milvus, Vespa, or Elasticsearch
- Skilled in designing cloud-native architectures and managing containerized workloads using Kubernetes and AWS/GCP
- Adept at translating complex technical challenges into clear, actionable strategies
- Strong communicator and mentor who leads through collaboration, influence, and technical excellence
What the job involves
- The ML Indexing & Retrieval Platform team at Reddit is responsible for building and scaling the core infrastructure that powers machine learning driven recommendations. We design and maintain systems for ML data ingestion, low-latency retrieval services, and end-to-end lifecycle management of data
- With a focus on performance, reliability, and scalability, we enable real-time access to high-quality data that supports a wide range of applications, including Content Understanding, Semantic, Lexical retrieval & GenAI applications
- You’ll lead the development of next-generation ML Indexing & Retrieval systems, owning the full lifecycle from ideation to production and going beyond incremental improvements to reimagine core platform capabilities
- As part of a high-impact, cross-functional team, you’ll solve complex technical challenges to build scalable, reliable platforms that empower developers to efficiently ship critical ML features
- Languages: Go, Java, Python, or any object oriented programming language
- Frameworks: Flink, Airflow, Spark for large scale batch & stream processing
- Databases: Familiarity with Vector, Lexical & Key-Value Databases
- Tools: Kubernetes, Docker, AWS, GCP
- Lead the technical strategy, architecture, and implementation of Reddit’s next-generation ML Indexing & Retrieval engine, integrating capabilities across lexical and vector indexing, low-latency retrieval, and emerging GenAI applications
- Partner closely with product engineers across Content Understanding, Search, Feeds, Ads, Growth, and Safety to deliver high-quality experiences
- Define best practices for observability, reliability, and operational excellence in large-scale distributed systems
- Mentor and guide engineers in designing scalable infrastructure and adopting robust DevOps and SRE principles
- Collaborate with infrastructure, and ML teams to ensure the platform evolves to meet the needs of Reddit’s growing user base and diverse content ecosystem
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
57% employee growth in 12 months
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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