Senior Staff Machine Learning Engineer, Reddit
Agentic AI Platform, Ads Ranking
$292.5-409.5k
+ Equity
Online platform for thoughts, experiences & discussions
Open for applications
Online platform for thoughts, experiences & discussions
1001+ employees
Open for applications
$292.5-409.5k
+ Equity
1001+ employees
Company mission
To empower communities, and make their knowledge accessible to all.
Role
Who you are
- 9+ years of experience in ML engineering, applied ML, or a related field, with substantial production impact
- Senior Staff-level technical leadership and a record of influencing direction across teams
- Deep modeling expertise and strong fundamentals in data, objectives, architectures, optimization, evaluation, and experimentation
- Concrete examples of using agentic AI or AI coding tools to produce better ML outcomes—not just faster code generation
- Ability to design guardrails and evaluations that make autonomous or semi-autonomous workflows trustworthy
- Strong coding ability in Python and fluency with modern ML frameworks and data tooling
- Clear, concise communication and a collaborative, low-ego approach to technical leadership
What the job involves
- We are seeking a Senior Staff Machine Learning Engineer to define and accelerate how we leverage agentic AI to transform machine learning models and modeling workflows
- This high-impact role focuses directly on modeling leverage—enhancing model quality and velocity—rather than building general infrastructure
- As a senior staff engineer, you will operate as a technical leader across the entire modeling loop, utilizing modern AI-assisted development systems (such as Claude, Cursor, and comparable tools) to make model development faster, more rigorous, and significantly more effective across the organization
- Why Join Us?
- This role offers a domain-flexible platform to redefine how ML engineering is done
- If you are passionate about combining deep ML fundamentals with the vanguard of agentic AI to multiply team impact, we’d love to talk to you
- What you’ll do:
- Develop advanced ML models and the agentic workflows that help teams design, train, evaluate, and improve them
- Use tools such as Claude, Cursor, and comparable AI-assisted development systems to investigate model behavior, generate and test hypotheses, automate repetitive analysis, and improve code and experiments
- Build reliable loops for data and label analysis, feature and embedding development, architecture comparison, hyperparameter optimization, error analysis, and experiment readouts
- Design evaluation harnesses that measure both model outcomes and agent/workflow quality, including correctness, reproducibility, regressions, cost, and latency
- Partner with product, data science, ML infrastructure, and engineering teams to connect modeling improvements to user and business outcomes
- Set technical direction across teams, mentor engineers, and raise the bar for modeling rigor and AI-assisted engineering
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 130,000 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 120 million daily users and billions of monthly page views. While these figures are smaller than those of social media giants like Facebook and X, Reddit 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, 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
(CEO & Founder)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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