Jobs in the United States

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Added 1 day ago
B/
Systems Engineer (23254)
BE / RenXTech
Chantilly, VA
- $130,000 to $170,000 USD / year
Must have an Active TS/SCI clearance with Polygraph · Must have STEM degree
Added 1 day ago
Data Engineer II, Amazon Key
Amazon.com Services LLC
Austin, TX · Bellevue, WA
Design, implement, and support data warehouse / data lake infrastructure using AWS big data stack, Python, Redshift, QuickSight, Glue/lake formation, EMR/Spark/Scala, Athena etc.
Added 1 day ago
Forward Deployed Engineer (Remote-LATAM)
Pearster
Remote, United States
We are looking for a Forward Deployed Engineer (FDE) to join our growing international team and work closely with clients to design, develop, and implement innovative technical solutions…
Added 1 day ago
Software Engineer I (For 2026 Interns Only)
Sierra Nevada Corporation
Lone Tree, CO
Qualifications You Must Have: · Must have been an SNC Summer 2026 Intern
Added 1 day ago
Staff Security Engineer - AppSec
6sense
Remote, United States
…aspects of application security, including threat modeling, developer training, vulnerability management, automated security testing, and code…
Added 1 day ago
Software Engineer (Palantir Foundry / Microsoft Power Platform) - Clearance Required
LMI
United States
LMI is seeking a Software Engineer to build and deploy Army applications that connect Palantir Foundry data and services with Microsoft Power Platform workflows and user interfaces. This…
Added 1 day ago
Lead AI Developer
Fairfax, VA
The Lead AI Developer ensures that every AI agent deployed to support faculty research, automate staff workflows, or proactively guide students operates flawlessly and free of…
Added 1 day ago
Sr Staff Engineer - Verification, CI/CD Infrastructure & Embedded Hardware (AISW)
Qualcomm Canada ULC
ON, CA
The Sr Staff Engineer Engineer, Verification (CI/CD & Embedded HW) is a senior individual contributor responsible for designing, scaling, and hardening CI/CD infrastructure and verification…
Added 1 day ago
Senior Machine Learning Engineer
TheIncLab
Remote, United States
…purpose as well. We are looking for a Senior Machine Learning Engineer to that will focus on researching, designing, training, and evaluating machine learning models to solve complex,…
Added 1 day ago
Senior Machine Learning Engineer
TheIncLab
Remote, United States
…purpose as well. We are looking for a Senior Machine Learning Engineer to that will focus on researching, designing, training, and evaluating machine learning models to solve complex,…
Added 1 day ago
Senior DevOps Engineer
TheIncLab
Remote, United States
…can meet purpose as well. We are looking for a Senior DevOps Engineer to join the Infrastructure Team. We encourage you to apply and take the first step in joining our dynamic and impactful…
Added 1 day ago
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Systems Engineer
Actalent
Springfield, VA
- $100,000 to $130,000 USD / year
Work EnvironmentThis is an onsite role based at a facility in Albuquerque, NM, with work performed on site five days per week
Added 1 day ago
Staff Machine Learning Engineer, Ads Foundational Representations
Reddit
New York City, NY
As a Staff ML Engineer, you’ll be in charge of setting the technical direction of multiple pillars the team owns. You will lead cross-functional ML projects end to end - from high-level…
Added 1 day ago
Lead ASIC Design Verification Engineer
Chelsea Search Group
Minneapolis, MN
A Lead ASIC Design Verification Engineer will establish, staff, and lead our ASIC verification team. This is a hands-on technical leadership role – you will personally architect and build…
Added 1 day ago
Lead Design Verification Engineer
Chelsea Search Group
Minneapolis, MN
A Lead ASIC Design Verification Engineer will establish, staff, and lead our ASIC verification team. This is a hands-on technical leadership role – you will personally architect and build…
Added 1 day ago
Lead UVM Design Verification Engineer
Chelsea Search Group
Minneapolis, MN
A Lead ASIC Design Verification Engineer will establish, staff, and lead our ASIC verification team. This is a hands-on technical leadership role – you will personally architect and build…
Added 1 day ago
Full Stack Software Engineer/Developer
LEIDOS, INC.
San Diego, CA
The Leidos Military and Veterans Health Solutions Operation has an opening for a Full Stack Software Engineer/Developer to join the Operational Readiness Directorate at the Naval Health…
Added 1 day ago
Software Engineer
Visionist, Inc.
Columbia, MD
Visionist has an exciting new, fully FUNDED opportunity for a Software Engineer on our largest PRIME contract. Our team of Analysts and Engineers is motivated by the direct impact on the…
Added 1 day ago
Software Engineer
Visionist, Inc.
Columbia, MD
Visionist has an exciting new, fully FUNDED opportunity for a Software Engineer on our largest PRIME contract. Our team of Analysts and Engineers is motivated by the direct impact on the…
Added 1 day ago
Applied AI Engineer
Visionist, Inc.
Columbia, MD
Visionist has an exciting new, fully FUNDED opportunity for an Applied AI Engineer on our largest PRIME contract. Our team of Analysts and Engineers is motivated by the direct impact on the…
Added 1 day ago
Applied AI Engineer
Visionist, Inc.
Columbia, MD
Visionist has an exciting new, fully FUNDED opportunity for an Applied AI Engineer on our largest PRIME contract. Our team of Analysts and Engineers is motivated by the direct impact on the…
Added 1 day ago
Applied AI Engineer
Visionist, Inc.
Columbia, MD
Visionist has an exciting new, fully FUNDED opportunity for an Applied AI Engineer on our largest PRIME contract. Our team of Analysts and Engineers is motivated by the direct impact on the…
Added 1 day ago
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Senior Software Engineer, Backend (ML Feature Platform)
Affirm
Remote, United States
- $195,000 to $225,000 USD / year
You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin.
Added 1 day ago
EG
Automated Test Engineer
Eliassen Group
Helena, MT
- $40 to $50 USD / hour
Our client seeks an Automated Test Engineer to support Hivemind by monitoring and maintaining large volumes of automated tests, troubleshooting failures, and driving bug resolution across…
Added 1 day ago
Electrical Engineer
Peraton
Aberdeen Proving Ground, MD
We are seeking a talented and experienced Electrical Engineer who will focus on the analysis and characterization of radio frequency technologies. You will work hands-on with software…

Staff Machine Learning Engineer, Ads Foundational Representations

New York City, NY, United States

$230,000 - $322,000 USD

Apply on job-boards.greenhouse.io About employer

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Job details

Pay: $230,000 - $322,000 USD
Experience: 7+ years of hands-on experience with the full lifecycle of designing, training, evaluating, testing, and deploying industry-level models.
Posting language: English
Posted: Nov 12, 2026

Original job 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 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com.

Location: Reddit has a flexible-first workforce. Don't live near our New York office? No worries: you can work remotely from anywhere on the US East Coast (Eastern Time).

The Ads Foundational Representations (AFR) team develops signals and representations of Reddit’s core entities (ads, posts, users, and so on), capturing the semantic, contextual, and behavioral information that Reddit Ads needs. We work on building embeddings to understand content and users' interests based on the content they engage with.

Our team has the potential to highlight one of Reddit's biggest differentiators: genuinely curated, high-quality, extremely relevant, and daily updated organic content. We are a Machine Learning/Data heavy team with a focus on the following areas:

Multimodal & Content Embeddings - Make sense of organic (posts, comments, subreddits) and promoted (ads, shopping products, their landing pages) text and media content by embedding them into a shared space.
Contextual and Behavioral Relevance - Working with Product & Data Science, establishing definitions of what ads are relevant to users and the content we show them next to, building metrics and fine-tuning embeddings to better reflect relevance.
Knowledge Graph Embeddings - Building representations for the Knowledge graph entities, e.g., intellectual properties/brands, to be used for high-precision targeting & business insights.
User Intent Modeling - Leveraging various techniques to introduce user representations based on the content they interact with: batch & real-time sequence modeling, LLM summarization, etc.
LLM-based Representations - Leveraging LLMs, VLMs, and foundational models to build complex representations of Reddit entities that improve ranking outcomes

The signals and features we create become a key piece in the Ads Delivery funnel, from targeting to the auction, as well as the Business Insights product and other advertiser-facing products such as Creative generation and optimization.

As a Staff ML Engineer, you’ll be in charge of setting the technical direction of multiple pillars the team owns. You will lead cross-functional ML projects end to end - from high-level business gap analysis to engineering execution.

Roughly 50% of your time will be spent on technical leadership and mentorship (driving strategy & designs, cross-functional collaboration, raising the quality bar), another 50% being individual hands-on work (data analysis & engineering, modeling & automation).

Responsibilities

Providing technical leadership and mentorship to MLEs in the team: driving designs & their review, establishing best practices in analysis, modeling and engineering, keeping the bar high.
Working closely with team/org leadership developing technical strategy for content-based embeddings & relevance for Ads.
Developing new or iterating on existing embedding models for advertising use cases, ranging from aggregation pipelines to two-tower architectures and sequence models.
Working with local and 3rd-party LLMs/VLMs: extract representations, develop evaluation methodologies, prompt tune and fine-tune large models to build state-of-the-art embeddings.
Building data processing and inference pipelines for the models we develop.
Qualitative and quantitative evaluation of the various features we develop, end-to-end experimentation from internal benchmarks to downstream recommender system offline metrics to online experiments.
Ensuring the reliability, scalability, and performance of the ML systems by writing automated tests, monitoring performance, and implementing best practices for model management.
Participating in modeling and coding reviews: You will review work by other team members and provide feedback to ensure that it meets the team's standards for quality and performance.
Collaborating with cross-functional teams to understand business requirements and translate them into technical solutions.

Required Qualifications:

7+ years of hands-on experience with the full lifecycle of designing, training, evaluating, testing, and deploying industry-level models.
Demonstrated Staff-level technical leadership: mentoring engineers, driving standards and bar raising, leading complex cross-functional projects: from requirements, design to cross-team/functional alignment and execution without direct people-management authority.
Excellent communication skills, with the ability to translate complex technical concepts to different audiences, both verbally and in writing.
Strong track record of working on content rich NLP/CV problems at scale, and using embeddings as a tool to solve them.
Established data-driven approach for ML system development. Excitement about working with data and readiness to look behind the metric numbers.
Familiarity with the Ads domain and/or Search/Recommender systems.
Experience with mainstream DL frameworks: PyTorch or TensorFlow.

Preferred Qualifications:

Experience with our stack (Python, Pytorch, Airflow, BigQuery, Ray, k8s, kafka, GCP)
Tech leadership experience: mentoring junior engineers and leading complex projects.
Hands-on experience with using/fine-tuning/building LLMs.

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

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:

$230,000 - $322,000 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.

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Jobs in the United States