Keystone Recruitment Jobs in United States

We are collecting diverse voice recordings to support the development of a multilingual AI platform. · Place calls to a designated demo phone line and record the caller side only · Produce short, natural-sounding phone conversations with varied tone, pace, and pauses · ...

We're seeking high-performing students or recent graduates to contribute as generalist independent contractors. This flexible project-based role allows you to apply strong reasoning and writing skills to frontier AI research while maintaining full control over your schedule. · Cr ...

+Job summaryWe are recruiting experienced Financial Risk Specialists to support a research initiative for one of our clients. · +Qualifications4+ years of full-time professional experience as a financial risk specialistStrong understanding of financial risk management principles, ...

We are seeking proficient JavaScript developers to help validate correct and optimize Excel automation scripts used in AI training workflows. · ...

We are seeking an English Writing Specialist to evaluate and improve how large language models respond in general chat settings. You will review model-generated responses, provide structured human feedback, and help ensure AI systems communicate accurately. · ...

We are recruiting experienced Construction and Building Inspectors to support a research initiative. · ...

We are seeking a detail-oriented Data Analyst I to support large-scale data curation and evaluation initiatives for advanced generative AI systems. · ...

We are seeking an experienced Project Manager to support advanced research initiatives in augmented and virtual reality technologies. This role will focus on managing research and feature development programs within an interdisciplinary environment spanning audio signal processin ...

This role focuses on structured adversarial testing of language models. You will design and execute controlled test cases to identify vulnerabilities, edge cases, and systemic weaknesses in AI behavior. · Conduct structured adversarial testing of conversational AI systems · Promp ...

We are seeking an English Expert (Native Speaker) to support one of our clients in maintaining high language quality across transcription and content localization projects. · Transcribe audio and video content accurately · Review written materials for clarity, · consistency, · an ...

We are seeking experienced Judicial Law Clerks to support a long-term research initiative for one of our clients. · Design and evaluate research questions related to judicial and legal analysis · Apply professional judgment based on prior judicial law clerk experience · Produce c ...

We are partnering with a leading AI research group to engage sports experts for a short-term evaluation project. · ...

+Evaluates and improves how AI systems respond to clinical and health-related questions ensuring outputs are accurate clear safe and aligned with real-world healthcare standards.+ · + · + + Write and refine prompts that guide AI behavior in healthcare medical scenarios · + Evalu ...

We are looking for a UX Engineer to join our research project with a leading AI company to enhance product design and user experience. · Apply your expertise to make decisions about product design, interface layout, and usability. · Provide user experience and user journey feedba ...

One of our clients is seeking Generalist Experts to support a large-scale initiative with a leading AI research organization. 2+ years of experience in research, education, writing, editing, or analytical roles · Strong ability to communicate complex ideas clearly and concisely · ...

We are seeking an English Expert (Native Speaker) to support one of our clients in maintaining high language quality across transcription and content localization projects. · Transcribe audio and video content accurately, paying attention to context and nuance · <brClrLiReview pr ...

We are seeking experienced Recreational Therapists to support a research initiative for · one of our clients · in the artificial intelligence sector. · This role focuses on applying your professional expertise to design high-quality, occupation-specific questions and scenarios re ...

We are seeking experienced Credit Counselors to support a long-term research initiative for one of our clients in the artificial intelligence sector. · Design and evaluate research questions related to credit counseling and personal finance guidance · Apply professional judgment ...

+Job summary · A leading technology organization is seeking a Senior Technical Program Manager to lead complex, · cross-functional technology initiatives.This role will drive planning coordination and execution across engineering product management and operational teams to delive ...

+This is a short-term, project-based opportunity ideal for professionals with strong analytical thinking, writing ability, and attention to detail. · +Create original prompts across a broad range of generalist subject areas · Review, edit, and refine AI-generated outputs for accu ...