The fields of Machine Learning (ML) and Artificial Intelligence (AI) encompass a wide range of job positions and roles, each with its own specific responsibilities and skill requirements. Here are some of the main job positions in these fields:

1. Machine Learning Engineer: Machine Learning Engineers design, develop, and implement machine learning models and algorithms. They work on data preprocessing, feature engineering, model training, and deployment.

2. Data Scientist: Data Scientists analyze large datasets to derive insights and make data-driven decisions. They often use statistical analysis and machine learning techniques to solve complex problems.

3. Artificial Intelligence Research Scientist: AI Research Scientists conduct research to advance the state of the art in AI and develop novel algorithms and models. They often work in academia or research-focused positions in industry.

4. AI/Machine Learning Research Engineer: These engineers bridge the gap between research and practical application by implementing cutting-edge AI and ML algorithms into real-world systems.

5. Deep Learning Engineer: Deep Learning Engineers specialize in designing and building neural networks for tasks such as image recognition, natural language processing, and speech recognition.

6. Computer Vision Engineer: Computer Vision Engineers focus on creating algorithms and systems for interpreting and processing visual data, often used in applications like image and video analysis.

7. Natural Language Processing (NLP) Engineer: NLP Engineers work on understanding and processing human language, including tasks like sentiment analysis, text generation, and language translation.

8. Robotics Engineer: Robotics Engineers develop AI and ML systems that enable robots to perceive and interact with their environment autonomously.

9. Data Engineer: Data Engineers build and maintain the infrastructure and pipelines required to collect, store, and preprocess data for machine learning and AI applications.

10.AI Ethics and Fairness Researcher: These researchers focus on the ethical and responsible use of AI, addressing issues like bias, transparency, and fairness in AI systems.

11. AI Product Manager: AI Product Managers oversee the development and deployment of AI-powered products and services, ensuring they meet business goals and user needs.

12. AI Business Analyst: AI Business Analysts bridge the gap between technical teams and business stakeholders, helping organizations leverage AI for strategic decision-making.

13. AI Consultant: AI Consultants provide expertise to businesses seeking to implement AI solutions, helping them assess their needs and develop AI strategies.

14. AI/ML Instructor or Educator: Educators and instructors teach AI and ML concepts and skills to students and professionals through academic institutions, online courses, and workshops.

15. AI/ML Operations (MLOps) Engineer: MLOps Engineers focus on the deployment, monitoring, and maintenance of machine learning models in production environments.

16. AI/ML Infrastructure Engineer: These engineers work on designing and maintaining the hardware and software infrastructure needed for scalable and efficient AI/ML operations.

17. AI/ML Data Labeler/Annotator: Data Labelers annotate and label datasets used for training machine learning models, a critical step in supervised learning.

18. AI/ML Quality Assurance (QA) Engineer: AI/ML QA Engineers test and validate AI models to ensure they meet performance and accuracy requirements.

These job positions represent a broad spectrum of roles within the machine learning and AI fields, and the specific responsibilities and qualifications for each role can vary widely depending on the organization and industry. As these fields continue to evolve, new roles and specialties may emerge.