AI Generalist

Explore remote AI Generalist jobs in Cambridge for 2026 e. Join our full-time engineering team to improve large language model evaluation, RLHF, and training data quality.

Are you looking for remote AI Generalist jobs in Cambridge for 2026? Rex.zone is hiring full-time, mid-senior professionals to drive large language model evaluation and model performance improvement. In this remote role, you will bridge the gap between complex engineering workflows and high-quality data labeling. Your primary focus will be on RLHF (Reinforcement Learning from Human Feedback), prompt evaluation, and ensuring strict annotation guidelines compliance.

By joining our AI labs, you will directly impact LLM training pipelines, working alongside experts in NLP, computer vision, and content safety labeling.

As an AI Generalist, you will manage diverse AI/ML training workflows. Responsibilities include executing QA evaluation for generative AI outputs, performing named entity recognition, and guiding computer vision annotation tasks. You will collaborate with tech startups and annotation vendors to maintain training data quality. Whether you are handling content safety labeling or refining prompt evaluation frameworks, your expertise will ensure our models achieve superior accuracy and alignment.

Ideal candidates for this full-time remote position possess a strong background in machine learning and data operations. You must have proven experience in large language model evaluation, RLHF, and NLP. Familiarity with Python, data labeling platforms, and QA evaluation protocols is essential. We welcome applicants with diverse backgrounds, from freelance annotation specialists to senior AI engineers, who are passionate about shaping the future of AI e.