Senior Machine Learning Engineer

OneStudyTeam is hiring a Senior Machine Learning Engineer to build and deploy AI-driven products that accelerate clinical trials and support improved patient outcomes. This remote role focuses on advanced ML and LLM solutions, scalable data pipelines, and MLOps processes that integrate AI into the platform.

Key Responsibilities

• Build and deploy AI-driven products to accelerate clinical trials and improve patient outcomes.
• Develop advanced machine learning models and LLM-powered agents for use cases such as patient recruitment, enrollment forecasting, and study feasibility.
• Contribute to the expansion of the AI knowledge base architecture to support these solutions.
• Use modern cloud tooling and MLOps best practices to implement robust data pipelines and deploy models at scale.
• Apply technologies including Python (and Clojure), AWS services (Athena, Bedrock, SageMaker, etc.), dbt, Prefect, and CI/CD automation with monitoring to keep models reliable and up-to-date.
• Collaborate with data scientists, product managers, designers, engineers, and domain experts to integrate AI capabilities into the platform, including Care Access products.
• Ensure AI solutions support and enhance clinical research workflows for end-users.
• Stay current with ML/AI developments (LLMs, NLP, probabilistic modeling, etc.) and bring forward new ideas.
• Experiment with advanced techniques and turn promising prototypes into production features.

Required Qualifications

• At least 5+ years of hands-on experience building and deploying machine learning solutions in production at scale.
• Proven ability to implement end-to-end ML pipelines from data ingestion through model serving for real-world applications used by real people.
• Proficiency in Python and the ML ecosystem, including pandas, scikit-learn, and TensorFlow/PyTorch, with clean and efficient coding practices.
• Comfort working with large datasets, writing complex SQL queries, and using modern data processing frameworks.
• Experience with functional programming (for example, Clojure) is a plus but not required.
• Experience with modern cloud infrastructure (AWS or similar) and containerization tools such as Docker.
• Familiarity with MLOps best practices, including CI/CD pipelines, automated testing, and monitoring model performance and data drift.
• Strong understanding of machine learning fundamentals (model selection, training, evaluation, feature engineering) and statistical modeling.
• Familiarity with NLP and large language models is important.
• Ability to break down complex problems and design effective and efficient ML solutions.
• Ability to balance pragmatic engineering with scientific rigor so models are accurate, performant, and maintainable in production.
• Passion for the mission to speed up clinical trials and improve patient outcomes.
• Empathy for patients, clinicians, and researchers, with a focus on building unbiased AI solutions.

Technologies

• Python, Clojure, pandas, scikit-learn, TensorFlow, PyTorch
• SQL
• AWS: Athena, Bedrock, SageMaker
• dbt, Prefect
• CI/CD, Docker
• LLMs, NLP, probabilistic modeling
• Model performance/data drift

Compensation and Location

• Location: Remote
• Salary: USD 140,000 - 190,000 per year
• Minimum Experience: 5 years

Mandatory Employer Disclosures

• Notice to Illinois applicants: Applicants are not obligated to disclose expunged juvenile records or adjudication, arrest, or conviction.
• Notice to Connecticut applicants: OneStudyTeam may require applicants to submit to a urinalysis drug test in connection with an application for employment.
• Notice to Arizona, Georgia, Indiana, and North Dakota applicants: OneStudyTeam complies with applicable laws prohibiting smoking in and around places of employment.
• Notice to Massachusetts applicants: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
• Notice to Rhode Island applicants: OneStudyTeam complies with Rhode Island law prohibiting smoking in enclosed areas within places of employment. OneStudyTeam is also subject to Chapters 29–38 of Title 28 of the Rhode Island General Laws.
• Notice to Maryland applicants: Under Maryland law, an employer may not require or demand, as a condition of employment, prospective employment, or continued employment, that an individual submit to or take a lie detector or similar test. An employer who violates this law is guilty of a misdemeanor and subject to a fine not exceeding $100.