[Remote] Senior Staff Machine Learning Systems Engineer, Indexing & Retrieval Search

Note: The job is a remote job and is open to candidates in USA. Reddit, Inc. is a community-driven platform known for its diverse conversations and vast user engagement. They are seeking a Senior Staff Machine Learning Systems Engineer to lead the development of ML Indexing & Retrieval systems, focusing on building scalable and reliable platforms that enhance machine learning capabilities.

Responsibilities

• 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

Skills

• 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

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
• Equity in the form of restricted stock units
• Commission (depending on the position offered)
• Medical, dental, and vision insurance
• 401(k) program with employer match
• Generous time off for vacation
• Parental leave

Company Overview

Company H1B Sponsorship