AI Research Scientist | Machine Learning | Deep Learning | Natural Language Processing | LLM | Hybrid | San Jose, CA

Position Overview

Enigma is a company focused on advanced AI technologies and Generative AI recruitment, specializing in Machine Learning and Software Engineering. They are seeking an AI Research Scientist to design and analyze machine learning experiments. The successful candidate will stay updated with the latest AI research, collaborate with experts across domains, and contribute to academic publications. The company is headquartered in London, England with a small, dynamic team. For more information, visit https://www.enigma-rec.ai.

Key Responsibilities

• Design, execute, and analyze machine learning experiments, establishing strong baselines and selecting appropriate evaluation metrics.
• Stay current with the latest AI research; identify, adapt, and validate novel techniques for company-specific use cases.
• Define rigorous evaluation protocols, including offline metrics, user studies, and adversarial (red team) testing to ensure statistical soundness.
• Specify data and annotation requirements; develop annotation guidelines and oversee quality control processes.
• Collaborate with domain experts, product managers, and engineering teams to refine problem statements and operational constraints.
• Develop reusable research assets such as datasets, modular code components, evaluation suites, and comprehensive documentation.
• Work alongside ML Engineers to optimize training and inference pipelines for seamless production integration.
• Contribute to academic publications and represent the company in research communities, as needed.

Required Qualifications

• Advanced degree in Computer Science, Artificial Intelligence, Machine Learning, or a related field (Ph.D. strongly preferred; exceptional candidates with a Master’s degree will also be considered).
• 3–5 years of experience in AI/ML research roles, ideally in applied or production-focused environments.
• Proven track record in delivering research-driven solutions that have been deployed in production.
• Strong foundational knowledge in machine learning and deep learning algorithms, with hands-on experience in techniques such as PEFT/LoRA, adapters, fine-tuning, and RLHF/RLAIF.
• Advanced programming skills, primarily in Python (preferred), and experience with C++ or Java, along with familiarity using deep learning frameworks like PyTorch and Hugging Face.
• Solid mathematical background in probability, linear algebra, and calculus.
• Ability to work collaboratively in cross-functional teams and translate research insights into actionable product improvements.

Preferred Qualifications

• Publications in top-tier AI/ML conferences (e.g., NeurIPS, ICML, ACL, CVPR) are a plus.
• Domain expertise in areas such as natural language processing, symbolic reasoning, or speech processing.

Benefits & Perks

• H1B Sponsorship: Enigma has a track record of offering H1B sponsorship (with historical records in previous years), though this does not guarantee sponsorship for this specific role.
• Opportunity to work on cutting-edge AI research in a collaborative and innovative environment.