Jobs in the United States

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APPRENTICESHIP - Manufacturing Maintenance Technician
Manufacturing Maintenance Solutions (MMS)
Pekin, IL
You’ll learn directly from experienced technicians while working with real manufacturing equipment and systems.
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Production Supervisor
Fruehauf Inc
Bowling Green, KY
…Production Manager, other supervisors, Materials, Quality, Engineering, and Maintenance to sustain…
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Senior Principal Product Leader
Genentech
South San Francisco, CA
This role is based in South San Francisco and offers a hybrid schedule working 3 day per week on campus
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LA
Civil Engineer- Water/Wastewater
LaBella Associates
Charlottesville, VA
- $85,000 to $110,000 USD / year
…As an Engineer joining our rapidly growing Water/Wastewater engineering Team, you will tackle diverse challenges across the firm’s entire geographic footprint – in the Mid-Atlantic and also…
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Production Supervisor
Folience Inc
Sumner, IA
Coordinate with maintenance, materials, scheduling and engineering to keep the line running.
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AU
Warehouse Cleaner - Day Shift
ABM US
Sugar Land, TX · Lenexa, KS
- $15.73 USD / hour
Notify management of the need for repairs or additions to building systems.
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Warehouse Janitorial Cleaner
ABM US
Baton Rouge, LA
Notify management of the need for repairs or additions to building systems.
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Warehouse Janitorial Cleaner
ABM US
Blue Springs, MO
Notify management of the need for repairs or additions to building systems.
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AU
School Custodial Cleaner
ABM US
Buda, TX
- $17 USD / hour
Notify lead cleaner or manager concerning the need for minor or major repairs or additions to building operating systems
Added 1 min ago
Sr. Maintenance Manager
DrinkPAK II, LLC
PA
Ensure timely and efficient maintenance of processing equipment, packaging equipment, utility systems, and site facilities to maximize equipment uptime and overall throughput.
Added 1 min ago
A
Quality Inspector
adecco
El Cajon, CA
- $25 to $27 USD / hour
…and precision measuring tools while ensuring products meet engineering drawings, specifications, and quality requirements. If you meet the qualifications listed below, Apply…
Added 1 min ago
Sales Support Engineer
Alpharetta, GA
…Engineer. The Sales Support Engineer will solve challenging engineering problems involving products, systems, and components using advanced simulation techniques and…
Added 2 mins ago
Internship - Imaging Physics R&D
ASML US, LP. (US30)
San Jose, CA
Develop and apply simulation methods to investigate optical and electromagnetic effects in photomask systems.
Added 2 mins ago
Production Engineer Tooling Asset Management
ASML US, LP. (US20)
Wilton, CT
As a Production Engineer, Tooling Asset Management, you will work closely with engineering, maintenance, and manufacturing teams. You will combine hands-on production support with data…
Added 2 mins ago
ES
Mechanical Engineer (New Grad 2027)
Eight Sleep
San Francisco, CA
- $100,000 to $130,000 USD / year
- Design, build & test complex electromechanical systems, including plastic, metal, and soft goods components integrating with novel sensors and actuators.
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Java Developer
Infosys
United States
The Infosys Engineering unit is dedicated to amplifying product-centric value delivery through innovative engineering solutions. We focus on adopting a data-first approach to engineering…
Added 2 mins ago
Telco OSS Java Developer
Infosys
United States
The Infosys Engineering unit is dedicated to amplifying product-centric value delivery through innovative engineering solutions. We focus on adopting a data-first approach to engineering…
Added 3 mins ago
Data Scientist
Smadex SLU
New York, NY
Bachelor’s degree in a quantitative discipline (Statistics, Economics, Mathematics, Computer Science, Engineering, or related).
Added 3 mins ago
Project Manager
Hoffman Construction Company
Childress, TX · TX · San Antonio, TX · Houston, TX · Lubbock, TX · Dallas, TX · Fort Worth, TX
Lift/Carry: Must have the ability to lift or manipulate 50 pounds to a height of 3 feet and carry or push 50-100 feet
Added 3 mins ago
Senior Product Designer, Global Evidence
Flatiron Health
NY
A bias toward lean design: You work efficiently with design systems, leverage existing patterns, and avoid over-engineering solutions. You move fast without sacrificing clarity or usability
Added 3 mins ago
Packaging Validation Engineer
ProQualityNetwork
New Albany, OH
Collaborate with Manufacturing, Engineering, Quality Assurance, and other cross-functional teams to ensure successful execution of validation activities.
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Business Operations Associate (January 2027 Co-op)
Reframe Systems
Billerica, MA
- Able to work on-site in Billerica, MA most of the week (40 hours/week total), with flexibility to work from home 1–2 days per week
Added 4 mins ago
TR
Automated Driving Advanced Development Intern, Machine Learning Research
Toyota Research Institute
Los Altos, CA
- $45 to $65 USD / hour
Currently pursuing a Ph.D. or master’s degree in Computer Science, Robotics, Machine Learning, Artificial Intelligence, Electrical Engineering, or a related field.
Added 4 mins ago
MH
Maintenance Engineer
Millennium Hotels and Resorts
Sunnyvale, CA
- $30 to $33 USD / hour
…public areas, back-of-house spaces, equipment, and building systems while responding to guest and operational maintenance…
Added 4 mins ago
Software Engineer - AI Voice Systems
Red Ventures
Charlotte, NC · 1101 Red Ventures Drive Fort Mill, SC
Our AI Voice & Telephony Engineering Team builds the systems that power intelligent conversations, using AI to create natural, human-like interactions at scale. We’re building voice…

Closed listing

Amazon.com Services LLC

Senior Applied Scientist, Leo Space Security

Bellevue, WA, United States
Arlington, VA, United States
Herndon, VA, United States

This opening has closed.

The original listing is kept below for reference.

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Posting language: English
Posted: Nov 5, 2026

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Original job description

Archived listing. The details below describe a past opening.

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

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Jobs in the United States