Senior Machine Learning Engineer

C the Signs; Boston (MA); Hybrid; USD 140,000 - 210,000; Full time

Benefits offered by this job

Competitive salary

Flexible work arrangements

Life-changing AI technology

Continuous learning

Job summary

C the Signs is seeking a Machine Learning Engineer to lead end-to-end development and deployment of large language and ML models, with a focus on preprocessing, training, and fine-tuning using healthcare data. You will work with clinicians and engineers to productionize scalable ML pipelines while ensuring data privacy and security.

The role requires 5+ years in ML engineering, strong Python skills, and experience with LLMs, distributed training, and cloud-based workflows.

Qualifications

• 5+ years of experience in Machine Learning Engineering or a similar role.
• Experience with large-scale data preprocessing and LLM training.
• Experience with distributed training (PyTorch Distributed, DeepSpeed, Ray).
• Experience with healthcare data is highly desirable.
• Strong Python and ML library proficiency.

Responsibilities

• Preprocess large healthcare datasets for ML development.
• Design, train, and fine-tune LLMs on clinical data.
• Set up GPU instances and training pipelines.
• Evaluate models with appropriate metrics and optimize.
• Develop robust data and ML pipelines for training, inference, deployment.
• Collaborate with clinicians and engineers to deploy in production.
• Document models and experiments.

Skills

Python

Large Language Models

ML Algorithms

Data Preprocessing

Model Training

Hyperparameter Tuning

Collaboration

Communication

Education

Bachelor’s or Master’s in CS/ML/AI

Tools

TensorFlow

PyTorch

Scikit-learn

Pandas

NumPy

Hugging Face Accelerate

Spark

Job description

Position Summary

The Machine Learning Engineer will be responsible for the end-to-end development and deployment of Large language and machine learning models, with a primary focus on data preprocessing, model training, and fine-tuning using large-scale healthcare datasets. This role requires a strong understanding of Large language models, machine learning principles, data engineering, and experience working with sensitive healthcare data.

Key Responsibilities

• Data Preprocessing: Clean, transform, and prepare large, complex healthcare datasets for machine learning model development. This includes handling missing values, outlier detection, feature engineering, and data normalization. Identify, collect, and curate relevant, industry-specific datasets for model retraining. Format data appropriately for the chosen LLM and training pipeline
• Model Training & Fine-Tuning: Design, train, and fine-tune various LLMs on extensive healthcare data to solve specific clinical or operational problems. Set up and manage the training environment, including GPU instances and required software. Train and fine-tune pre-trained LLMs on the custom dataset to achieve specific goals. Experiment with and fine-tune hyperparameters such as learning rate, batch size, and training epochs to optimize model performance. Integration of structured + unstructured data (multi-modal/multi-input models)
• Model Evaluation & Optimization: Evaluate model performance using appropriate metrics, identify areas for improvement, and implement optimization strategies.
• Pipeline Development: Develop and maintain robust and scalable data and ML pipelines for model training, inference, and deployment.
• Collaboration: Work closely with data scientists, clinicians, and software engineers to understand requirements, integrate models into production systems, and ensure data privacy and security compliance.
• Research & Development: Stay up-to-date with the latest advancements in machine learning and healthcare AI, and explore new technologies and methodologies to enhance our solutions.
• Documentation: Maintain clear and comprehensive documentation of models, data pipelines, and experimental results.

• Education: Bachelor's or Master's degree in Computer Science, Machine Learning, Artificial Intelligence, or a related quantitative field.
• Experience:
  • 5+ years of experience in Machine Learning Engineering or a similar role.
  • Proven experience with large-scale data preprocessing, LLM/model training, and fine-tuning.
  • Experience with distributed training (PyTorch Distributed, DeepSpeed, Ray, Hugging Face Accelerate).
  • Experience with GPU/TPU optimization, memory management for large language models.
  • Experience working with healthcare data is highly desirable.
• Technical Skills:
  • Proficiency in Python and relevant ML libraries (e.g., TensorFlow, PyTorch, Scikit-learn, Pandas, NumPy).
  • Strong understanding of various machine learning algorithms,Large Language Models, and deep learning architectures.
  • Experience with cloud platforms (e.g., GCP, AWS) and distributed computing frameworks (e.g., Spark) is a plus.
  • Familiarity with MLOps practices and tools.
• Soft Skills:
  • Excellent problem-solving and analytical skills.
  • Strong communication and collaboration abilities.
  • Ability to work independently and as part of a team in a fast-paced environment.
• Work Authorization:
  • Must be a US Citizen, Green Card holder, or currently in the US have valid H1B visa

Why Join Us?

JoiningC the Signsis not just about building AI; it’s about shaping the future of healthcare. If you are a technical leader with an unshakable belief in the power of AI to save lives and the ability to make it happen at scale, this is your opportunity to create a tangible, global impact.

Benefits:

• Competitive salary and benefits package.
• Flexible working arrangements (remote or hybrid options available).
• The opportunity to work on life-changing AI technology that directly impacts patient outcomes.
• Join a team that combines cutting-edge innovation with a mission to save lives and improve health equity.
• Continuous learning opportunities with access to the latest tools and advancements in AI and healthcare.