Hiring.Camp

Senior Machine Learning Systems Engineer

reddit

·

Mar 18, 2026

Location
Remote - United States
Workplace
Remote
Department
Machine Learning
Seniority
Senior
Experience
5+ years
Source
Greenhouse

Description

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 121 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit 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 ML Infrastructure Engineer, you will lead development of a platform for large scale ML models at Reddit.

  • Design end-to-end model lifecycle patterns (MLOps) to boost velocity of development for ML engineers, including data preparation, model management, experiment tracking, and more
  • Zero-to-one development and support of a graph ML codebase and platform that abstracts away common patterns and enables greater model scalability and iteration
  • Collaborate with ML engineers on performance tuning, including improving model training time, efficiency, and GPU training costs in a large, distributed ML training environment
  • Optimize batch data processing within a data warehouse and with tools such as Apache Beam, Apache Spark, Ray Data, and more
  • Architect pipelines to build and maintain massive graph data structures on the order of billions of nodes and tens of billions of edges

Who You Might Be:

  • 5+ years of experience in ML infrastructure, including model training and model deployments
  • Hands-on experience with ML optimization, including memory and GPU profiling
  • Deep experience with cloud-based technologies for supporting an ML platform, including tools like GCP BigQuery, Google Cloud Storage, infrastructure-as-code (Terraform), and more
  • Hands-on experience administering and integrating MLOps tools for experiment tracking, model serving, and model registries (e.g. MLflow or Wandb)
  • Proficiency with the common programming languages and frameworks of ML, such as Python, PyTorch, Tensorflow, etc.
  • Deep experience working with distributed training frameworks, including Ray and Kubernetes
  • Strong focus on scalability, reliability, performance, and ease of use. You are an undying advocate for platform users and have a deep intuition for the machine learning development lifecycle.
  • Strong organizational & communication skills
  • Experience working with graph databases (Neo4j, JanusGraph, TigerGraph) is a big plus
  • Experience working with graph neural networks (GNNs) and associated graph ML frameworks (PyTorch Geometric, Deep Graph Library) is a big plus

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 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:
$216,700—$303,400 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.

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.

Skills

PythonGCPKubernetesTerraformMachine LearningTensorFlowPyTorchSparkBigQuery

Similar Jobs

30

Senior Staff Machine Learning Engineer, ML Understanding

reddit·Remote - United States·Remote

Today

Senior Machine Learning Engineer

Grab·Beijing, China

Today

Senior Staff Machine Learning Engineer

Zscaler·Remote - USA, Santa Clara +1·Remote

Today

Senior Machine Learning Engineer

Zscaler·Remote - USA, Santa Clara +1·Remote

Today

Senior Machine Learning Scientist

Etsy·Depop - London, UK·Remote

1d ago

Sr Engineer, AI/Machine Learning

Danaher·USA - Irvine - 52 Discovery - Masimo Corporation, US·Onsite

1d ago

Senior Machine Learning Engineer, Causal & Decision Systems

Cscgeneration-2·Costa Rica·Hybrid

1d ago

Senior Machine Learning Engineer

Intuitive Surgical·Santa Clara, CA

1d ago

(Senior) Machine Learning Engineer, Revenue Management (m/f/d)

Sixt·Lisbon, Portugal·Hybrid

1d ago

Senior Machine Learning Scientist

Expedia·UK - London, UK

2d ago

Sr Associate Machine Learning Engineer

Workday·Canada, BC

2d ago

Senior Staff Machine Learning Engineer

Capitalone·McLean, VA +1

2d ago

Sr. Director of Machine Learning

Hims And Hers·US Remote·Remote

2d ago

Senior Member of Technical Staff- Machine Learning

Careers Page·Bangalore - Whitefield India

2d ago

Senior Machine Learning Engineer

Amgen is committed to unlocking·US - California - Thousand Oaks - Field, Remote·Remote

2d ago

Senior Machine Learning Engineer

Checkr·San Francisco, California

2d ago

Senior Machine Learning Engineer

Externaljobboards·Bulgaria, Hungary

2d ago

Senior Machine Learning Engineer

Exadel Inc (Website)·Bulgaria, Hungary

2d ago

Senior Machine Learning Engineer (MLOps)

ASOS·London, England

2d ago

Senior Machine Learning Engineer (Personalisation)

ASOS·London, England·Hybrid

2d ago

Senior Machine Learning/ AI Engineer

Future Processing·Gliwice·Remote

2d ago

Senior Manager, Machine Learning Engineer

Capitalone·McLean, VA +4

3d ago

Senior Machine Learning Engineer

Geico·MD Bethesda Office, US +2·Hybrid

3d ago

Senior Machine Learning Engineer I

Relx·UK-Farringdon, UK

3d ago

Senior Machine Learning Engineer I

RELX Jobs·UK-Farringdon, UK

3d ago

Senior Data Scientist (AI and Machine Learning)

Hewlett Packard Enterprise (HP)·Bengaluru, Karnātaka·Onsite

3d ago

Senior Director / Vice President, Machine Learning (Generative Chemistry)

Flagshippioneeringinc·Cambridge, MA USA

5d ago

Senior Machine Learning Engineer - Dublin, Ireland (m/f/x)*

Solventum·Dublin, IR·Hybrid

6d ago

Senior Manager, AI & Machine Learning Engineering

Disney·USA - FL - 7141 Kirkman Dr, US +2·Onsite

6d ago

Senior Manager, AI & Machine Learning Engineering

Disney·USA - FL - 7141 Kirkman Dr, US +2·Onsite

6d ago