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Find Jobs in the USA

Browse the latest USA job vacancies at Ethic Leaf and take the next step in your career. Explore roles across industries and locations — from major cities to regional hubs — including full-time, part-time, temporary and permanent options.

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Prolific jobs

9 jobs found

“Prolific”

Prolific

3w ago

Computer Science Experts - PhD - AI Training - Germany

Full-timeRemoteUnited StatesCompetitive

Prolific is building the biggest pool of quality human data in the world, and they are seeking Computer Science experts to help train and evaluate cutting-edge AI models.

Machine Learning & AIAI EngineerAIMachine learning
Apply nowView

Prolific

3w ago

Computer Science Experts - PhD - AI Training - UK

Full-timeRemoteUnited StatesCompetitive

Prolific is building the biggest pool of quality human data in the world, serving over 35,000 AI developers and researchers.

Machine Learning & AIAI EngineerAIMachine learning
Apply nowView

Prolific

4w ago

Research Consultant

Full-timeOn-siteUnited StatesCompetitive

Responsibilities Audit current lifecycle programmes, journeys, segmentation and tooling (HubSpot, Pendo, Hex) Map the self-serve journey by customer segment and identify the biggest activation and retention gaps Agree a prioritised roadmap and success metrics…

Lifecycle and Email MarketingLifecycle MarketingProduct-Led GrowthHubSpotPendo
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Prolific

4w ago

Research Consultant

Full-timeRemoteRemote, USACompetitive

Prolific’s Managed Services team provides consultative support for complex research projects. The Research Consultant advises customers on research design and methodology, manages engagements through analysis and reporting, and partners with internal teams to…

Customer SupportResearch Project DesignResearch MethodologySampling StrategiesQuantitative Research
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Public company

4w ago

Electrical Engineer (Prolific Supply)

Full-timeRemoteRemote, USA$95K – $130K/yr

Prolific Supply LLC is hiring a Lighting Engineer for its Gavita lighting business. The role defines and delivers LED lighting products and systems for cannabis and controlled-environment agriculture, coordinating product development across sales, marketing,…

Electrical & AutomationElectrical EngineerLED LightingBusiness Case Development
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Prolific

30+ days ago

Computer Sciences - Graduates - AI Training

Full-timeRemoteUnited StatesCompetitive

Responsibilities Comparing multiple AI-generated responses to technical prompts and ranking them based on accuracy, logic, and safety Reviewing CS research papers alongside AI-generated summaries and graphical abstracts to ensure scientific integrity…

Machine Learning & AIAI EngineerAI EvaluationAlgorithm UnderstandingCode Logic Review
Apply nowView

Prolific

30+ days ago

Computer Science Experts - PhD - AI Training - US

Full-timeRemoteUnited StatesCompetitive

Prolific is a leader in the AI space, building the largest pool of quality human data globally. They are seeking PhD holders in Computer Science to train and evaluate advanced AI models, requiring expertise in complex problem-solving and the ability to…

Machine Learning & AIAI EngineerAIMachine learning
Apply nowView

Prolific

30+ days ago

Computer Sciences - Graduates - AI Training - Kansas City, US

Full-timeRemoteUnited StatesCompetitive

AI Evaluation & Ranking: comparing multiple AI-generated responses to technical prompts and ranking them based on accuracy, logic, and safety Scientific Review: reviewing CS research papers

Machine Learning & AIAI EngineerAI Model EvaluationAlgorithm UnderstandingCode Logic Review
Apply nowView

Prolific

30+ days ago

Computer Sciences - Graduates - AI Training - USA

Full-timeRemoteUnited StatesCompetitive

Responsibilities Comparing multiple AI-generated responses to technical prompts and ranking them based on accuracy, logic, and safety Reviewing CS research papers alongside AI-generated summaries and graphical abstracts to ensure scientific integrity…

Machine Learning & AIAI EngineerAI Model EvaluationAlgorithm UnderstandingCode Logic Review
Apply nowView

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USA Jobs FAQs

Agency jobs involve working through a recruitment provider that connects candidates with employers. These roles can be temporary or permanent and offer flexibility across industries.

Browse vacancies, open a role that matches your skills, and submit your details. An Ethic Leaf consultant will be in touch about next steps, interviews and onboarding.

Opportunities are available across logistics, hospitality, administration, retail, manufacturing, healthcare, IT and more.

You will need proof of identity and your right to work in the USA, such as a passport or relevant documentation.