# Staff Machine Learning Systems Engineer, Embeddings Platform

**Company:** [Reddit](https://hotfix.jobs/companies/reddit)
**Location:** Remote
**Role:** ML Engineering
**Salary:** $253k – $355k/yr
**Experience:** 8+ years
**Skills:** Python, C++, Deep Learning, Distributed Training, Real-Time Inference, A/B Testing, Model Evaluation, ML Infrastructure, High-Performance Computing, Cloud-Based Ml Pipelines
**Posted:** 2026-06-11

> Staff ML Systems Engineer leading large-scale embedding and recommendation model architecture, distributed training, and real-time serving. Owns ML strategy and mentors engineers on personalization systems.

## Job Description

## What You’ll Do
- Architect and lead the development of next-generation, large-scale machine learning techniques.
- Define and execute the ML strategy, identifying opportunities to enhance personalization and recommendation quality across Reddit.
- Lead research initiatives on scalable machine learning systems and real-time model adaptation, bringing cutting-edge advancements into production.
- Partner with ML infrastructure teams to build high-performance, distributed training systems that efficiently scale across multiple GPUs and cloud environments.
- Establish and optimize real-time serving architectures for large-scale embeddings, ensuring low-latency inference and high throughput.
- Collaborate cross-functionally with teams in Feed Ranking, Ads, Content Understanding, and Core ML to integrate ML models into Reddit’s key AI-driven systems.
- Mentor and guide senior and mid-level ML engineers, fostering a culture of excellence, innovation, and knowledge sharing.
- Stay at the forefront of AI research, evaluating and introducing new modeling paradigms to keep Reddit’s ML ecosystem cutting-edge.
- Drive technical discussions, present findings to leadership, and contribute to long-term ML planning and decision-making.

## Who You Might Be
- 8+ years of experience in machine learning engineering, with a strong focus on large-scale ML systems and recommendation or personalization systems.
- Expertise in modern deep learning architectures, including sequence models and foundational models.
- Deep understanding of complex multi-entity relationships in machine learning applications and how they are modeled in large-scale systems.
- Proven ability to design, implement, and optimize scalable ML architectures, from distributed training to real-time inference.
- Strong software engineering skills in Python, C++, or similar languages, with experience in ML infrastructure, high-performance computing, and cloud-based ML pipelines.
- Demonstrated leadership in driving ML strategy, mentoring engineers, and influencing cross-functional teams.
- Experience with A/B testing, model evaluation frameworks, and real-time feedback loops in large-scale production systems.
- Excellent communication skills, with the ability to effectively present complex ML concepts to technical and non-technical stakeholders.

## 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

## Similar roles

- [Staff Engineer, Harness Engineering](https://hotfix.jobs/jobs/94422145-8343-4e17-868b-90b7a73af463) - Harper - San Francisco, CA - $253k – $308k/yr
- [Senior Staff Software Engineer, Legal Automation](https://hotfix.jobs/jobs/7870d3e1-ebec-4f7b-9ae5-c62926a06d6e) - Coinbase - Remote - $254k – $299k/yr
- [Member of Technical Staff, AI Agent Development Lead](https://hotfix.jobs/jobs/06642e42-50eb-454d-8ec8-f1ab0104efca) - Postman - San Francisco, CA - $256k – $276k/yr
- [Staff Software Engineer, Agentic Platform](https://hotfix.jobs/jobs/63ce2244-1c65-4c7d-820a-ca8afb78bb60) - Axion - San Francisco, CA - $250k – $270k/yr
- [Member of Research Staff, Optimization](https://hotfix.jobs/jobs/cd745934-2bf2-444e-b0b7-dc259cf569a4) - The Voleon Group - Berkeley, CA - $250k – $275k/yr

**Apply:** https://hotfix.jobs/jobs/40903327-0afb-4d20-8f16-560912f0f6e6
**Canonical:** https://hotfix.jobs/jobs/40903327-0afb-4d20-8f16-560912f0f6e6