Citizen · 5 hours ago
Machine Learning Engineer
United States
Full-time
Remote
Senior Level
$200K/yr - $225K/yr
5+ years expCitizen is the #1 personal safety app in the U.S. with a mission to Protect the World and make communities safer. They are seeking an experienced Machine Learning Engineer to drive the development of core recommendation capabilities that deliver real-world relevance and value to users, focusing on processing large volumes of real-time video content.
AppsInternetNewsPublic Safety
Responsibilities
Real-time ranking and recommendation of newly uploaded videos
Modeling video relevance, quality, and local importance
Noise and duplicate detection to reduce feed clutter
Leveraging multimodal signals (visual + audio + metadata) for relevance scoring
Building human-in-the-loop feedback loops that continuously improve model quality
Qualification
Required
Experience in building and shipping ML systems with measurable product impact
Deep understanding of applied ML pipelines in production environments
Experience across ML modeling techniques and frameworks (e.g., ranking, embeddings, neural networks, tree-based models)
Degree in CS, Machine Learning, or equivalent industry experience
5+ years of experience in machine learning
Preferred
Experience in recommender systems
Experience in video understanding
Experience in human-in-the-loop learning
Benefits
At least one fully employer-sponsored medical plan option
Dental and vision coverage, with a small employee contribution
Unlimited PTO
Up to 14 weeks paid parental leave (for all parents)
Monthly tech stipend
Free mental health support
Hybrid work environment + catered lunches (NYC HQ)
Company
Citizen
Citizen is a mobile application that notifies its users with safety alerts and real-time incident updates.
51-200 employees
H1B Sponsorship
Citizen has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (4)
2024 (1)
2022 (4)
2021 (4)
2020 (6)
Funding
Current Stage
Growth StageTotal Funding
$133MKey Investors
GreycroftGoodwater Capital8VC
2021-01-05Series C· $50M
2020-06-04Series Unknown
2020-03-09Convertible Note· $23M
Leadership Team
Andrew Frame
Founder and CEO
Destiny McDoniel
Strategic Partnerships / Business Development
Recent News
2026-01-08
2026-01-07
2025-12-09
Company data provided by crunchbase