AI Prompt Engineer

Rex.zone is seeking an AI Prompt Engineer to design, test, and evaluate prompts for LLMs to ensure accurate and safe outputs. The role involves collaborating with engineering and data operations to enhance model behavior through prompt iteration and evaluation.

AI Prompt Engineer Jobs in Canada

Online Startup Generalist

Rex.zone connects candidates with remote, full-time roles at fast-moving startups, and they are seeking an Online Startup Generalist to support cross-functional execution across various teams. The role involves owning execution across product ops and customer ops, coordinating launches, analyzing metrics, and improving systems and processes.

Online Startup Generalist (Canada)

Mid-Senior Remote AI Engineer

Rex.zone is hiring a Mid-Senior Remote AI Engineer to improve model quality and reliability for LLM and multimodal systems. The role involves building evaluation harnesses, integrating RLHF workflows, and partnering with data operations to enhance training data quality across NLP and computer vision use cases.

Remote AI Engineer (United States)

STEM Research Engineer

Rex.zone is hiring for a full-time, remote STEM research role focused on applied research engineering to build and evaluate AI/ML systems. You will design experiments, prototype solutions, and validate model performance improvements across NLP, computer vision, and LLM training pipelines using reproducible workflows.

STEM Research Jobs in India

AI Researcher

Rex.zone is a company focused on AI research, and they are seeking an AI Researcher to support end-to-end research and applied experimentation for modern AI systems. The role involves designing experiments, defining evaluation protocols, and improving evaluation rigor through robust measurement and QA evaluation workflows.

AI Research Jobs in Canada (Remote, Full-Time)

Rex.zone is a company focused on STEM research, seeking a STEM Research Engineer for a full-time remote role. The position involves improving AI/ML training pipelines through applied research, evaluation, and data operations, including designing experiments and collaborating with engineering teams.

STEM Research Engineer (Brazil)

AI Research Scientist

Rex.zone is a company focused on applied AI research, and they are seeking an AI Research Scientist to run projects for US-based customers. The role involves translating research questions into measurable experiments and collaborating with teams to improve model performance and evaluation processes.

AI Research Scientist (United States, Remote)

Rex.zone is hiring a STEM Research Engineer to support applied AI/ML research and engineering workflows, including LLM training pipelines and dataset development. This role focuses on improving training data quality and measurable model performance across NLP and computer vision.

STEM Research Engineer (Canada)

STEM Research Jobs

Rex.zone focuses on applied, hypothesis-driven workflows that turn ideas into measurable results across AI/ML, NLP, computer vision, and data-driven engineering. The role involves designing experiments, building prototypes, evaluating model performance, and communicating findings to stakeholders in a distributed team.

STEM Research Jobs in the United States

Rex.zone is hiring for remote, full-time AI Prompt Engineer roles supporting production LLM features. The role involves designing, testing, and optimizing prompts and workflows to enhance reliability and task success across various use cases in NLP and multimodal environments.