Haystack
← Back to Jobs
Full time
Technology
HA

Senior Machine Learning Specialist

HamsterSan Francisco🇺🇸United StatesPosted Oct 14, 2025

Why This Role Stands Out

This role offers an exceptional opportunity to shape cutting-edge AI solutions at a reputable tech company, with significant potential for professional growth and skill development in advanced ML techniques. You'll thrive here if you are an experienced ML specialist eager to build and deploy innovative models and contribute to a collaborative environment. Don't miss the chance to apply and make a real impact!

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
On Site
Location
San Francisco, United States
Posted
11 months ago
AWSMLOpsMachine LearningNLPPyTorchPythonTensorFlow

Job Description

You will be responsible for developing and implementing machine learning solutions that power our AI-native platform. This role requires expertise in custom model development, transformer architectures, and production deployment of ML systems.

Responsibilities

  • Design and develop custom machine learning models for specific business use cases.

  • Implement and optimize transformer architectures for natural language processing tasks.

  • Develop and maintain ML pipelines for data preprocessing, model training, and inference.

  • Work with large language models and implement fine-tuning strategies.

  • Implement retrieval-augmented generation (RAG) systems and optimize their performance.

  • Collaborate with engineering teams to deploy ML models in production environments.

  • Monitor and maintain model performance in production, implementing retraining strategies as needed.

  • Conduct research on emerging ML techniques and evaluate their applicability to our platform.

  • Mentor junior ML engineers and contribute to best practices within the team.

Required Skills and Qualifications

  • Master's degree or PhD in Computer Science, Machine Learning, or a related field, or equivalent practical experience.

  • 5+ years of experience in machine learning development and deployment.

  • Strong programming skills in Python and experience with ML frameworks (PyTorch, TensorFlow, or similar).

  • Deep understanding of transformer architectures and their applications in NLP.

  • Experience with large language models and fine-tuning techniques.

  • Proficiency in implementing and optimizing RAG systems.

  • Experience with ML model deployment and production monitoring.

  • Strong understanding of data preprocessing, feature engineering, and model evaluation techniques.

  • Experience with cloud platforms and ML infrastructure (AWS SageMaker, Google Vertex AI, or similar).

  • Excellent problem-solving skills and attention to detail.

  • Strong communication and interpersonal skills.

Preferred Qualifications

  • Experience with MLOps and ML pipeline orchestration tools.

  • Knowledge of distributed training and model optimization techniques.

  • Experience with vector databases and similarity search algorithms.

  • Familiarity with reinforcement learning and multi-agent systems.