All roles

Open role

[Remote] AI Engineer/ML Engineer - Senior Developers - AI Training - Ireland

Remote · Bangladesh Full-time

Note: The job is a remote job and is open to candidates in USA. Prolific is building the biggest pool of quality human data in the world, utilized by AI developers and researchers. They are seeking AI and Machine Learning Engineers to help train and evaluate the next generation of LLMs, leveraging 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 Hugging Face Transformers
  • Cloud & MLOps: experience with AWS (SageMaker), Google Cloud (Vertex AI), or specialized tools like Weights & Biases and LangChain
  • Vector Databases: familiarity with Pinecone, Milvus, or Weaviate for RAG evaluation

Benefits

  • 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.prolific.com/.
  • Company H1B Sponsorship

  • Prolific 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.
  • More open positions

    [Remote] Customer Support Reps - AI Training - Madrid, Spain

    Work from home Full-time role

    [Remote] Customer Support Reps - AI Training - Indianapolis, US

    Work from home Full-time role

    [Remote] Subject Matter Expert: Legal & Regulatory Research - Remote Advisory (Milan)

    Work from home Full-time role

    [Remote] Senior Solution Consultant – Ohio Valley

    Work from home Full-time role

    [Remote] Legal Professionals - AI Training - Birmingham, UK

    Work from home Full-time role

    [Remote] Cloud Regional Sales Engineer

    Work from home Full-time role

    [Remote] Analyst, Financial Reporting & Analysis - Statutory Reporting

    Work from home Full-time role

    Experienced Full Stack Customer Success Leader – Housing Industry

    Work from home Full-time role

    Experienced Work From Home - Chat Customer Service Consultant for careerzynith

    Work from home Full-time role

    Fractional Corporate Paralegal job at Elite Virtual Assistants - EVA in US National

    Work from home Full-time role

    Onsite Data Entry Clerk – Vermont (South Burlington) – Full‑Time Day & Evening Shifts – Competitive Hourly Pay & Career Growth at careerzynith

    Work from home Full-time role

    Traveling Security Field Engineer - Electronic / Integrated Security - (Job ID: 1592)

    Work from home Full-time role

    Experienced Customer Service Representative – Remote Opportunity with careerzynith

    Work from home Full-time role

    Neuroscience Sales Specialist - Allentown, PA

    Work from home Full-time role

    Entry-Level Remote Data Entry Specialist – No Experience Required – Join careerzynith's Innovative Data Team

    Work from home Full-time role

    Opperations Manager, V&E

    Work from home Full-time role

    Principal Pharmacovigilance Specialist, Case Processing

    Work from home Full-time role

    Seasonal Customer Service Representative – Remote Holiday Support Role (Oct – Dec 2025) – Florida & Nationwide

    Work from home Full-time role

    U.S. Spanish Medical Interpreters Remote or On-Site

    Work from home Full-time role

    Experienced Customer Relationship Manager – Building Lasting Client Relationships and Driving Business Growth at careerzynith

    Work from home Full-time role

    Senior Healthcare Recruiting Consultant - Executive Level

    Work from home Full-time role