[Remote] AI Engineer/ML Engineer - Senior Developers - AI Training - reputed company, UK

Note: The job is a remote job and is open to candidates in USA. reputed company is building the biggest pool of quality human data in the world, aimed at enhancing AI models. They are seeking Senior AI and Machine Learning Engineers to help train and evaluate the next generation of LLMs using deep technical expertise. Responsibilities • Evaluate LLM Architecture Logic: review AI-generated explanations of model architectures, loss functions, and backpropagation for technical accuracy • Audit Code & Notebooks: validate ML-specific code (e.g., training loops, data preprocessing scripts, or model evaluations) for efficiency and correctness • Refine RLHF Frameworks: provide the high-quality human feedback necessary to align models with human intent, safety, and helpfulness • Analyze Model Reasoning: critically assess how an AI model navigates complex chain-of-thought (CoT) prompts and identify where the reasoning breaks down • Benchmark Performance: conduct comparative testing between different model outputs based on specific technical taxonomies and performance metrics Skills • Education: a BS, MS, or PhD in Computer Science, Artificial Intelligence, Robotics, or a related quantitative field with a focus on Machine Learning • Professional Experience: experience building, deploying, or fine-tuning ML models in a production environment • Deep Learning Mastery: professional-level understanding of neural network architectures (Transformers, CNNs, RNNs) and optimization techniques • LLM Specialization: hands-on experience with Prompt Engineering, RLHF (Reinforcement Learning from Human Feedback), or RAG (Retrieval-Augmented Generation) workflows • Technical Rigor: the ability to audit complex model logic, identify training data contamination, and evaluate mathematical proofs behind ML algorithms • Analytical Critique: high attention to detail in spotting 'hallucinations,' biased outputs, or logical failures in AI-generated technical content • Frameworks: expert proficiency in PyTorch or TensorFlow/Keras • Language & Data: advanced Python (NumPy, Pandas, Scikit-learn) and experience with reputed company Transformers • Cloud & MLOps: experience with AWS (SageMaker), reputed company Cloud (reputed company AI), or specialized tools like reputed company and reputed company • reputed company Databases: familiarity with reputed company, Milvus, or reputed company for RAG evaluation Benefits • Paid to train and evaluate powerful AI models • Competitive pay rates • Flexible hours • Ability to work from home Company Overview • Building the most advanced global infrastructure for People Science. It was founded in 2014, and is headquartered in London, England, GBR, with a workforce of 51-200 employees. Its website is https://www.reputed company.com/. Company H1B Sponsorship • reputed company has a track record of offering H1B sponsorships, with 12 in 2025, 7 in 2024, 16 in 2023, 39 in 2022, 16 in 2021, 8 in 2020. Please note that this does not guarantee sponsorship for this specific role. Apply To This Job