Jobs in the United States

25+ jobs

Save this search

Added 2 mins ago
2026 Space Systems Modeling & Simulation Engineer
The Aerospace Corporation
El Segundo, CA
The Aerospace Corporation is hiring Space Systems Modeling and Simulation Engineers for the Communication and Network Architectures Subdivision (CNAS) within the Mission Payloads Division…
Added 3 mins ago
2026 Communications and Signal Processing Engineer
The Aerospace Corporation
Chantilly, VA
…team that is responsible for performing analysis, modeling and simulation of end-to-end radio and optical communication systems, and signal collection/processing techniques and solutions.…
Added 3 mins ago
Senior Networking Engineer
The Aerospace Corporation
El Segundo, CA
Systems engineering tasks and projects through architecture definition, trade studies, analysis, modeling & simulation, and prototype development/validation
Added 3 mins ago
2027 Entry Level DSP & SDR Engineer
The Aerospace Corporation
Chantilly, VA
…bits. Our expertise encompasses everything from modeling and simulation to RF chain analysis/design and software-defined radio systems. We leverage this deep knowledge to develop satellite…
Added 27 mins ago
Principal/Sr. Principal RF Microwave/Mixed Signal Design Engineer
CORP-Corporate Office
United States
…and packaging approaches, RF chain analysis, electromagnetic simulation, data collection and analysis, and other modeling…
Added 37 mins ago
Lead Data Scientist - Autonomous Goal Management
Humana
Cheyenne, WY
Demonstrated experience shipping autonomous, or semi-autonomous agents in production or simulation
Added 40 mins ago
Lead Data Scientist - Autonomous Goal Management
Humana
Providence, RI
Demonstrated experience shipping autonomous, or semi-autonomous agents in production or simulation
Added 40 mins ago
B
Senior FPGA / Electrical Engineer
BioTalent
San Diego, CA
- $180,000 USD / year
5+ years of hands-on FPGA development on low-power families, including timing closure, clock-domain crossing, and simulation-based verification
Added 42 mins ago
AA
Business Development Manager
Apera AI Inc
MI
- $90,000 to $110,000 USD / year
Our portfolio spans Vue (our 4D Vision software), Forge (a no-code simulation and AI training studio where customers build, validate, and de-risk robotic cells before any hardware is…
Added 43 mins ago
MS
Control Systems Engineer - Philadelphia, PA
Military Spouse Jobs & VetJobs
United States
- $65,200 to $101,950 USD / year
Perform design, development, modeling/simulation, and integration for Naval shipboard control systems applications in a lab environment
Added 43 mins ago
Founding Product Designer
True Talent Solutions Partners
San Francisco, CA
- Experience designing software for hardware or technical domains, such as CAD, simulation, or developer tools, is valuable.
Added 44 mins ago
Supervisor, Advanced Practice Providers - Pediatric Critical Care
Seattle Children's Hospital
Seattle, WA
…for new PICU APPs. Facilitate ongoing continuing education, simulation drills, and advanced organ-support competency…
Added 45 mins ago
Principal AV Behavior Safety Engineering Lead
General Motors
Frankfort, KY
…from ADS Architecture, ODD and behavior definition through simulation, closed‑course, and public‑road…
Added 54 mins ago
Software Engineer - E2
Lockheed Martin
Cape Canaveral, FL · Cape Canaveral
Experience in simulation software development, software testing and validation, and software configuration management
Added 54 mins ago
Registered Nurse (RN) MedCenter Air Clinical Transport
Carolinas Medical Center
Concord, NC
Added 54 mins ago
Electronics Engineer III
Lockheed Martin
Titusville, FL · Titusville
Perform circuit simulation with tools such as ORCAD PSPICE
Added 54 mins ago
Software Engineer
Lockheed Martin
Cape Canaveral, FL · Cape Canaveral
Experience in simulation software development, software testing and validation, and software configuration management
Added 54 mins ago
Systems Engineer Sr - E3
Lockheed Martin
Littleton, CO · Littleton
…system models that drive requirements traceability, performance simulation, and lifecycle management. Work is performed with moderate independence, with guidance available for complex or…
Added 54 mins ago
Circuit Design Engineer III
Lockheed Martin
Virtual One, MA
Experience with PSPICE, Saber or other electronics simulation tool experience.
Added 1 hour ago
Systems Design Engineer - Bioengineering
Thermo Fisher Scientific
Pleasanton, CA
Use CAD, simulation, rapid prototyping and laboratory fabrication to evaluate concepts quickly.
Added 1 hour ago
Engineer/Principal Engineer RF Microwave/Mixed Signal Design Engineer
Northrop Grumman
Baltimore
…and packaging approaches, RF chain analysis, electromagnetic simulation, data collection and analysis, and other modeling…
Added 1 hour ago
Principal/Sr. Principal RF Microwave/Mixed Signal Design Engineer
Northrop Grumman
Baltimore
…and packaging approaches, RF chain analysis, electromagnetic simulation, data collection and analysis, and other modeling…
Added 1 hour ago
Modeling Simulation & Analysis Engineer (Level 2)
Northrop Grumman
El Segundo
Northrop Grumman Aeronautics Systems has an opening for a Modeling Simulation and Analysis Engineer to join our team of qualified, diverse individuals within our Systems Engineering…
Added 1 hour ago
Modeling Simulation & Analysis Engineer 3 or 4 (Principal or Sr. Principal Level)
Northrop Grumman
El Segundo
Northrop Grumman Aeronautics Systems has an opening for a Modeling Simulation and Analysis Engineer (Principal or Sr. Principal Level) to join our team of qualified, diverse individuals…
Added 1 hour ago
Industrial Engineer / Principal Industrial Engineer
Northrop Grumman
Palmdale
Experience with improving manufacturing workflow using optimization, modeling, or simulation methods

Staff Machine Learning Engineer, Ads Forecasting & Scenarios

Remote, United States

$230,000 - $322,000 USD

Apply About employer

Applications open in a new tab.

Job details

Pay: $230,000 - $322,000 USD
Posting language: English
Posted: Oct 29, 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.

The opportunity

Build the machine learning capabilities that help advertisers understand what they could achieve on Reddit and make better investment decisions.

You will lead models that estimate how campaign outcomes could change with different budgets, bids, audiences, creative performance, or objectives. The work connects supply and demand forecasting, audience availability, response prediction, and marketplace simulation to help advertisers compare alternatives and recognize valuable opportunities they may be missing.

This is a hands-on technical leadership role with ownership of modeling direction, evaluation standards, and reusable production capabilities across advertiser planning and recommendations.

What you’ll do

Lead forecasting and scenario modeling. Translate advertiser questions into models of delivery, reach, performance, and investment tradeoffs. Set technical direction and guide execution across the team.
Connect inventory, demand, and response. Combine forecasts of available advertising opportunities, audience activity, marketplace competition, and predicted response to estimate achievable delivery and performance.
Estimate outcomes under alternative choices. Develop models that account for changes in budget, bid, audience, and optimization objective, including interactions among these choices, auction dynamics, and campaign constraints.
Quantify unrealized opportunity. Incorporate creative-performance estimates from partner teams to assess how stronger creative could have improved campaign results. Translate those inputs into potential gains in delivery, efficiency, or advertiser value.
Build models that generalize. Apply probabilistic forecasting, multitask learning, transfer learning, hierarchical modeling, or related approaches to handle sparse segments, cold start, delayed feedback, and changing conditions.
Establish trustworthy comparisons. Evaluate numerical accuracy, calibration, uncertainty, and cohort-level performance. Define supported scenarios and identify when additional evidence or experimentation is needed.
Close the learning loop. Compare recorded predictions with mature outcomes, diagnose systematic errors, and validate scenario estimates through experiments and observed results.
Own production delivery and technical leadership. Partner with engineers on reliable training, serving, monitoring, and iteration. Lead designs, mentor engineers, and collaborate with Product, Data Science, Ads Delivery, Audience, and Creative teams.

What we’re looking for

A track record of developing and shipping predictive ML systems in advertising, marketplaces, recommendations, search, demand forecasting, or similarly complex domains.
Strong foundations in statistical learning, probability, and optimization, with experience modeling large-scale behavioral or transactional data.
Depth in one or more relevant areas: probabilistic or hierarchical forecasting, calibrated conversion/value prediction, multitask or transfer learning, delayed-feedback or survival modeling, or response modeling.
Strong judgment in evaluation, including temporal validation, calibration, segment-level performance, and the assumptions required to estimate outcomes under changed conditions.
Experience addressing sparse observations, cold start, seasonality, distribution shift, selection bias, or partially observed labels.
Strong programming and software engineering skills, including experience building and operating production ML systems.
Demonstrated ability to lead ambiguous technical initiatives, make practical tradeoffs, and develop other engineers.

Preferred experience

Complementary depth in one or more of:

Demand, supply, and inventory forecasting: Advertising inventory, marketplace demand, traffic, retail demand, or capacity forecasting. Relevant methods include probabilistic time-series models, hierarchical/global forecasting, external-signal modeling, and multi-horizon prediction.
Auction and investment modeling: Auction simulation or replay, conditional win-rate and price models, bid/budget response curves, or constrained optimization.
Scenario evaluation: Counterfactual or off-policy evaluation, sensitivity analysis, uncertainty propagation, or composition of multiple predictive models.
Reach and audience estimation: Population and overlap estimation, probabilistic reach/frequency models, sampling correction, or saturation modeling.
Advanced predictive methods: Mixture-of-experts, distributional or quantile prediction, temporal sequence models, or state-space models.

What success looks like

Accurate and calibrated forecasts across priority advertiser populations; credible comparisons of supported campaign alternatives; reusable capabilities across planning and recommendations; and evidence that advertisers identify valuable opportunities and make better investment decisions.

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.

Apply About employer

Report this job