Principal Software Engineer, ML Feature Platform

Reddit, Inc.; United States; Remote; USD 266,000 - 388,000; Full time

Job summary

An innovative company is seeking a Principal Software Engineer to lead the ML Feature Platform team. This role involves designing and implementing a cutting-edge feature store for real-time data processing, directly impacting user experiences across the platform. The ideal candidate will have extensive experience in software engineering, systems design, and cloud-native architectures. With a focus on collaboration and mentorship, you will drive the technical strategy and ensure the health and quality of ML infrastructure. Join a forward-thinking organization committed to community and belonging, where your contributions will shape the future of online interactions.

Benefits

Comprehensive Healthcare Benefits

401k Match

Family Planning Support

Mental Health & Coaching Benefits

Flexible Vacation

Paid Volunteer Time Off

Qualifications

• 10+ years of software engineering experience with a focus on large-scale systems.
• Deep expertise in cloud-native architectures and performance optimization.
• Strong understanding of ML infrastructure and feature engineering.

Responsibilities

• Lead the design and development of a real-time feature store.
• Oversee technical strategy and architecture for ML infrastructure.
• Mentor team members in DevOps practices and project execution.

Skills

Software Engineering

Systems Design

Performance Optimization

Cloud-native Architectures

Feature Engineering

Real-time Data Systems

Team Leadership

Communication Skills

Education

Bachelor's Degree in Computer Science or related field

Master's Degree in Computer Science or related field

Tools

AWS

GCP

Azure

Job description

Principal Software Engineer, ML Feature Platform

Remote - United States

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 101M+ daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit redditinc.com .

Location:
This role is completely remote-friendly . If you happen to live close to one of our physical office locations, our doors are open for you to come into the office as often as you'd like.

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 PrincipalSoftware Engineer, ML Feature Platform, you will oversee the vision and lead the charge of our ML Feature Platform Teamand be instrumental in architecting, implementing, and maintaining foundational ML infrastructure used to compute, store, and retrieve features powering Feeds Ranking, Content Understanding, Recommendations, Ads, and much more to fulfill Reddit’s mission of bringing community and belonging to everyone in the world. You will be a visionary who will lead the design and development of a cutting-edge feature store optimized for low-latency online inference at scale.

• Lead the technical strategy, architecture and development of Reddit’s next-generation, real-time feature store that supports both online and offline feature retrieval.
• Work with other engineers across ML Platform and Reddit infrastructure to significantly advance the ML Platform.
• Work with management on team goal setting, planning, and de-risk project execution
• Mentor other team members in adopting a rigorous DevOps approach to maintain and/or improve ML infra components and services health and quality

Who You Might Be:

• 10+ years of professional software engineering experience
• 3+ years leading a team to design large-scale distributed systems.
• Deep expertise in systems design, performance optimization, and cloud-native architectures (AWS, GCP, or Azure).
• Strong understanding of ML infrastructure, especially feature engineering, data freshness, feature versioning, online/offline feature retrieval and online/offline consistency to serve 100s of millions of users.
• Proven experience building real-time data systems, e.g., feature stores, stream processing engines, or caching systems.
• Strong organizational & communication skills
• Comprehensive Healthcare Benefits and Income Replacement Programs
• 401k Match
• Family Planning Support
• Mental Health & Coaching Benefits
• Flexible Vacation & Reddit Global Days off
• Paid Volunteer time off

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.

The base pay range for this position is:

$266,000 - $387,400 USD

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.

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