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Sr. ML Engineer

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Robert Half

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Location:
United States , El Segundo or Thousand Oaks

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

Client = Consumer Insights Marketing & Rewards Platform w/ Fortune 1000 clientele. Primary Focus: Advanced AI/ML Solution Development; Leading Model Research and Development; Strategic Cross-functional Collaboration; Industry Trend Analysis and Application; AI Technique Evaluation and Innovation; Model Training, Validation, and Optimization; Seamless Integration and Performance Monitoring; Mentorship and Advanced Team Support.

Job Responsibility:

  • Develop and implement advanced AI/ML solutions aligned with strategic company goals
  • Lead the research, development, and deployment of sophisticated AI/ML models using Python, LangChain, LLMs, and HuggingFace transformers, as well as libraries for Deep Learning (e.g., Pytorch), ML libraries (e.g., XGBoost, Scikit-learn), and NLP (e.g., spaCy, NLTK)
  • Fine-tune existing models and create new models from scratch to enhance business processes and outcomes
  • Collaborate cross-functionally with senior teams to identify opportunities for AI/ML integration and optimization
  • Stay abreast of and apply industry trends and advancements to ensure our AI initiatives remain innovative and impactful
  • Research, evaluate, and implement advanced AI techniques and tools to inform decision-making
  • Collaborate with senior data and software engineers and other stakeholders to ensure seamless integration of AI/ML solutions
  • Monitor and optimize model performance on a regular basis
  • Provide advanced guidance and mentorship to junior team members and peers
  • Focus on business practicality and the 80/20 rule
  • very high bar for output quality but recognize the business benefit of 'having something now' vs 'perfection sometime in the future'

Requirements:

  • Bachelor's or higher in a related field + 3+ years of experience as a ML Engineer
  • Expertise in Python for writing production-quality code and SQL for big data exploratory analysis and feature engineering
  • Proven expertise in machine learning techniques and algorithms (e.g., DNN, Boosting Trees, Random Forests) with the ability to evaluate and adapt models to specific situations
  • Hands-on expertise with cloud data environments + containerization like Docker and Kubernetes + large scale distributed computing
  • Comfortable working with overseas teams (EU and India) and working outside of typical work hours from time-to-time

Nice to have:

  • Master's degree or PhD in AI, Machine Learning, or related fields
  • Experience with Ray for Training, Tuning and Serving ML models at scale
  • Experience with Recommender Systems in production
  • Knowledge of the Scala or Rust programming languages is a plus
  • Certification in AI/ML-related disciplines preferred
  • Prior experience in leading ML/AI projects or teams
  • Extensive experience with AI frameworks such as LangChain, LLMs, and HuggingFace, RAG
  • Experience on MLOps, CI/CD/CT
  • Experience on Bayesian Statistics and Causal Inference
What we offer:
  • medical
  • vision
  • dental
  • life and disability insurance
  • company 401(k) plan

Additional Information:

Job Posted:
January 06, 2026

Work Type:
Hybrid work
Job Link Share:

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