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Staff Machine Learning Engineer - AI Platform

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PhantomBuster

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Job Description:

You will join our Data Department to support the development of Phantom Intelligence, the platform that powers our product's AI capabilities.

Job Responsibility:

  • Define and evolve our infrastructure to allow for better ML and AI capabilities, with a focus on LLM-based and agentic systems
  • Contribute to the development and expansion of our agentic AI framework powered by AWS Bedrock, enabling both internal tools and customer-facing features
  • Identify, source, and refine datasets to allow tuning models, powering retrieval pipelines, or expanding agentic workflows
  • Pre-process data by using techniques such as data cleaning, feature engineering, and transformation
  • Train, evaluate, and deploy both LLM-based systems and traditional machine learning models into production
  • Monitor, debug, and continuously improve deployed models and AI tools
  • Support machine learning usage throughout the company, including selecting the right modeling approach for the use case (LLM vs. traditional ML)
  • Support the integration and use of LLMs, including approaches such as fine-tuning, prompt tuning, and retrieval-augmented generation (RAG), to improve accuracy

Requirements:

  • 5+ years of experience as a Data Scientist or Machine Learning Engineer
  • Experience working with LLMs (e.g., prompt engineering, fine-tuning, retrieval-augmented generation)
  • Experience working with Agents for Amazon Bedrock AgentCore or similar agent setups
  • Strong understanding of machine learning algorithms, statistical methods, and data preprocessing techniques
  • Experience with cloud platforms for model training and deployment, especially AWS
  • Proficiency in Python, including experience with libraries such as LangChain, Scikit-Learn, NumPy, Pandas, and PyTorch/TensorFlow
  • Proficiency in SQL and experience working with data warehouses (e.g., Snowflake, GCP)
  • Knowledge of MLOps best practices, including CI/CD pipelines, model monitoring, and versioning (e.g., MLflow, Airflow)
  • Experience deploying models to production and supporting them post-deployment
  • Fluency in English

Nice to have:

  • Experienced in a SaaS B2B business
  • Experienced within a product-led growth company
  • Contributions to open-source projects related to ML or AI
What we offer:
  • Fully remote working environment
  • €40/month for remote work
  • Flexible working time
  • Home office budget up to €1500
  • 100% of an Alan Blue subscription (french-based contracts)
  • Lunch vouchers - €8 (50% The Phantom Company) / worked day (french-based contracts)
  • Partnership with MokaCare
  • €70 a month benefit for entertainment expenses
  • Book Allowance and Sharing Program

Additional Information:

Job Posted:
February 14, 2026

Employment Type:
Fulltime
Work Type:
Remote work
Job Link Share:

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