Jobs in the United States

25+ jobs

Group jobs by employerEmail me new jobs Save this search

Added just now
Marketing Manager
Illinois Tool Works
Glenview, IL
Oversee the Technical Learning Specialist function, supporting the Learning Management System (LMS) through customer training content development, training website management, and related…
Added just now
Manager, Hygiene & Sanitation Excellence
Molson Coors
Milwaukee
In the role of Manager, Hygiene Systems & Sanitation Excellence working in Milwaukee, WI, you will lead the strategy, governance, and continuous improvement of brewery hygiene and process…
Added just now
Medical Science Liaison, Neuroimmunology - Great Plains
Janssen Scientific Affairs, LLC Legal Entity
Remote, United States
…the medicines of tomorrow. Our Immunology team leads in the development of transformational medicines for immunological disorders and illnesses. You can influence where medicine is going by…
Added just now
Regional Sales Manager - AHH
Ethicon US LLC Legal Entity
Kansas City, KS · MO · KS
The Regional Sales Manager (RSM) role is a sales leadership and account management role that will require clinical, business acumen and people development capabilities focused on growing…
Added just now
Manager, Social Impact
Janssen Pharmaceuticals, Inc. Legal Entity
Titusville, NJ
Purpose: The Manager, Social Impact, will play a critical role in supporting the development and execution of JJIM’s Social Impact strategy. This position blends management and operational…
Added just now
Station Manager
AIT Worldwide Logistics, Inc.
Eagan, MN
Valid Driver’s License required
Added 1 min ago
Account Manager Industry
J Rettenmaier USA
Schoolcraft, MI
…work environment, inclusive culture and the best training and development programs. We prove how much we value our employees’ health, wellbeing and financial future, in and out of the…
Added 2 mins ago
CO
Outreach Technician (Library)
City of Tyler
Tyler, TX
- $16.27 USD / hour
…The position reports to the Library Services & Programming Manager and requires occasional evening and weekend…
Added 3 mins ago
Manager Data Engineering
Akron Children's
Akron, OH
Leads a team of data engineers responsible for the planning, development, scalability, implementation and ongoing support for the data pipelines and infrastructure on cloud platforms.…
Added 3 mins ago
CG
Marketing Intern, Chartwells Higher Ed / American University
Compass Group
Washington, DC
- $18.4 USD / hour
In this role, you will work closely with the Marketing Manager to implement and promote the dining program here at American University. This involves research to understand the needs of the…
Added 3 mins ago
Campus Executive Chef
Compass Group
KENOSHA, WI
…are committed to our staff growing, trying new things, and learning all that they can. Our rapid growth and breadth of accounts translates into exciting opportunities for our…
Added 3 mins ago
Assistant Café Manager
Compass Group
MOUNTAIN VIEW, CA
…freshness, and presentation. Working closely alongside the Café Manager, you will oversee the daily operations of the café, with a particular focus on the development, and performance…
Added 3 mins ago
Acute Care RN Preceptor (Flint Hills) - Operating & Recovery - FT - Day
Stormont-Vail HealthCare, Inc.
Junction City, KS
Collaborate with the Nurse Manager or designee to evaluate progress, revise goals and update learning plan as appropriate.
Added 3 mins ago
Wellness & Recovery Specialist - NEW Gym Opening!
EōS Fitness
Carrollton, TX
CPR/AED certification required within 30 days of hire
Added 3 mins ago
Service Associate - Night - NEW Gym Opening!
EōS Fitness
Carrollton, TX
CPR certification required within 30 days of hire
Added 3 mins ago
Service Associate - NEW Gym Opening!
EōS Fitness
Carrollton, TX
CPR certification required within 30 days of hire
Added 3 mins ago
BR
Service Sales Representative
Baker Roofing Company
Roanoke, VA
- $75,000 to $100,000 USD / year
Our Sales Reps complete a structured, paid four-month Sales Training & Development Program featuring roofing fundamentals, hands-on field training, and self-paced learning - designed by…
Added 4 mins ago
Development Services Coodinator
Space Center Houston
Houston, TX
In support of the Manager of Development Services, test and recommend improvements to customizations and modifications made to the configuration of the department's business intelligence…
Added 5 mins ago
AG
Regional Manager, North
Alberta Gaming, Liquor and Cannabis
AB, CA
- $119,621 to $164,479 USD / year
Reporting to the Director, Technical Services & Compliance, the Regional Manager, North is responsible for the strategic leadership, planning, and management of Technical Services…
Added 6 mins ago
HVAC Lead Installer
Michael Bonsby HVAC, Plumbing & Electrical
Woodbridge, VA · Gaithersburg, MD
Must consider safety one’s primary job and must have general knowledge of safe working practices and OSHA requirements
Added 7 mins ago
Leave of Absence Consultant
T-Mobile USA, Inc.
Overland Park, KS
Growth Mindset: Embraces challenges, seeks learning opportunities, and adapts to change with a focus on continuous improvement and professional development.
Added 8 mins ago
Human Resources Generalist
University System of Georgia
GA
Support performance management and employee development efforts by assisting with goal setting, performance reviews, development plans, training coordination, employee recognition…
Added 8 mins ago
CC
Community Manager
Continental Careers
Cape Coral, FL
- $85,000 to $90,000 USD / year
…meaningful career with long-term growth potential. We invest in your learning & development with paid professional memberships, certifications, and tuition…
Added 8 mins ago
Surgical Technologist Cert.
Lexington Medical Center
West Columbia, SC
Collaborates with the Associate Care Manager/Registered Nurse to continuously update the nursing plan of care and recommends interventions to meet identified patient goals.
Added 8 mins ago
Leadership Giving Officer, Athletics
University of New Hampshire Foundation
United States
…they will also collaborate with many colleagues across the Development team and University Advancement. Beyond personal outreach and interactions, they will coordinate strategic…

Amazon

Senior Applied Scientist, Leo Security

Bellevue, WA, United States

Apply on usnlx.com About employer

Applications open in a new tab.

Job details

Posting language: English
Posted: Sep 12, 2026

Original job description

Description

Amazon Leo is a constellation of Low Earth Orbit satellites that will provide low-latency, high-speed broadband network connectivity to unserved and underserved communities around the world.

We are looking for an Applied Scientist to be a founding scientist on the Engineering and R&D team within Leo Infrastructure and IP Security. The team defends the manufacturing lines, launch sites, and global ground infrastructure behind the constellation from the most sophisticated threat actors on the planet. These requirements create open scientific problems at the intersection of agentic AI, real-time stream processing, graph-based reasoning, and behavioral analytics. You will build the science behind a neurosymbolic reasoning platform and the models that detect the behavior of sophisticated threat actors. This is an R&D role with a production mandate, where you define the problem rather than solve a pre-scoped one, and every model, detection, and agent workflow you build becomes the system Leo's security teams use to protect the constellation.

#### Export Control Requirement

Due to applicable export control laws and regulations, candidates must be a U.S. citizen.

Key job responsibilities

Design and implement scalable, production-grade neurosymbolic systems that integrate symbolic reasoning over graph-based knowledge representations with LLM agents to deliver reliable, verifiable security outcomes.
Design and run reinforcement learning and fine-tuning pipelines (GRPO, PPO, DPO) to optimize language models for security reasoning, triage, and detection-authoring tasks.
Build behavioral and statistical models that detect threat actor behavior, and design the evaluation frameworks that measure model performance against that behavior before trusting a model in production.
Design and build multi-agent systems that autonomously triage, enrich, and contain security events, including the constrained reasoning, safety guardrails, and validation mechanisms that make automated decisions trustworthy at scale.
Own the end-to-end science lifecycle, from research and experimentation through production deployment, defining the metrics that measure system performance and real-world security impact.
Advance the state of the art through publications at top-tier venues, patents, or open-source contributions, and shape the scientific agenda and research culture from day one.

A day in the life

You will move between research and production in the same week: framing an ambiguous security problem as a scientific question, prototyping an approach, and partnering with software engineers to ship it as a capability the platform runs continuously. Security engineers on your team translate threat intelligence into the adversary behaviors that matter; you build the models that detect those behaviors and evaluate model performance against them. You will obsess over the two latencies that define the platforms, the time from event to detection and the time from detection to containment action, and design agents and detections that drive both down. You will backtest candidate detections against retained telemetry, review evaluation results before a model or agent capability graduates to automated execution, and deliver scientific artifacts that ship.

About the team

Leo Infrastructure and IP Security protects the people, facilities, hardware, and supply chain behind a global satellite constellation. The Engineering and R&D team within this organization builds the platforms and tooling the security pillar teams operate on, moving security operations from manual triage to correlation-based detection, automated response, and agentic AI. The team is composed of applied scientists, software engineers, and security engineers working across physical and digital security domains.

#### Inclusive Team Culture

In Amazon Security, it's in our nature to learn and be curious. Ongoing DEI events and learning experiences inspire us to continue learning and to embrace our uniqueness. Addressing the toughest security challenges requires that we seek out and celebrate a diversity of ideas, perspectives, and voices.

#### Training & Career Growth

We're continuously raising our performance bar as we strive to become Earth's Best Employer. That's why you'll find endless knowledge-sharing, training, and other career-advancing resources here to help you develop into a better-rounded professional.

#### Work/Life Balance

We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why flexible work hours and arrangements are part of our culture. When we feel supported in the workplace and at home, there's nothing we can't achieve.

Basic Qualifications

3+ years of building machine learning models for business application experience
PhD, or Master's degree and 6+ years of applied research experience
Experience programming in Java, C++, Python or related language
Experience with neural deep learning methods and machine learning

•

Experience with graph algorithms, knowledge graphs, unsupervised learning (clustering, dimensionality reduction, anomaly detection), NLP, and embedding-based retrieval

•

Experience designing evaluation frameworks for AI systems where ground truth requires human judgment, including staged rollouts, A/B testing, and expert feedback loops

Preferred Qualifications

Experience with modeling tools such as R, scikit-learn, Spark MLLib, MxNet, Tensorflow, numpy, scipy etc.
Experience in building quantitative solutions as a scientist or science manager
Experience in one or more of the following domains: access- control system and methodology, network security, application- and system-development security, security architecture and models, cryptography, and operations security

•

Experience with terabyte-scale stream processing and real-time correlation of heterogeneous event sources

•

Experience with cost and latency optimization for LLM-based systems (token reduction, schema optimization, deterministic offloading)

•

Publications in applied ML, graph analytics, agentic AI, or security analytics

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits .

USA, VA, Arlington - 167,100.00 - 226,100.00 USD annually

USA, VA, Herndon - 167,100.00 - 226,100.00 USD annually

USA, WA, BELLEVUE - 167,100.00 - 226,100.00 USD annually

Apply on usnlx.com About employer

More about this job

Skills

Research
Supply chain management
Machine learning
Oracle Java
C++
Python
Deep learning
Natural language processing
R
Scikit-learn
Apache Spark
Apache MXNet
TensorFlow
NumPy
SciPy
Control systems
ML
Recruitment
Mental health

Report this job

Work requirements

Jobs in the United States