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UPSTREAM AI/ML engineer with Gen AI Exposure

Hallmark Global Solutions Ltd

  • Location: Can be remote in Central Time Zone. Will need to visit the Bentonville, AR Home Office for the first 2 weeks and will also visit periodically, as needed.
  • Work Authorization: Any (H1B ok)
  • Employment Type: Full-Time
  • Experience: 7-8+
Customer Requirement

Job Description


We need the following AI resources in order to meet Kairos (project name), Upstream timeline and scope:

We will take the highest skill level in each role that we can afford- at least Senior DS if not Staff DS

4 FTE Upstream AI resource requirements

  1. Data Scientist with 3+ years of ML and Optimization (Mathematical Optimization, Mixed Linear/Integer programming) experience.
  2. Data Scientist with 3+ years of ML experience, including Agentic AI.
  3. Operations Research Scientist with 5+ years of scalable optimization experience.
  4. ML Engineer with 4+ years of experience in ML, deployment, and production engineering.

Job Description - AI / Data Science Roles


We are seeking skilled professionals in AI, Data Science, and Operations Research (OR) with strong coding and problem-solving abilities.


Core Technical Skills:
  • Programming: Python (must-have), SQL
  • Optimization Tools: PuLP, CPLEX
  • AI/ML: Machine Learning, GenAI (ChatGPT, Mistral), LLMs
  • Other Tools: MS Copilot, Element (optimization), Wibey
  • Core Areas:
    • AI / Data Science
    • Operations Research & Optimization
    • Forecasting & Mathematical Modeling
Key Responsibilities:
  • Develop and implement ML/AI models and optimization solutions
  • Work on large-scale optimization problems (Linear/Mixed Integer Programming)
  • Build and test data-driven solutions with strong coding practices
  • Leverage GenAI tools for automation, coding, and productivity
  • Collaborate with cross-functional teams and communicate effectively
Evaluation (HackerRank):
  • Python coding (data structures, ML-related problems)
  • SQL queries and data handling
  • Problem-solving and logical reasoning
Additional Skills:
  • Strong coding and testing skills
  • Familiarity with auto-coding / AI-assisted development
  • Good communication and collaboration skills
Vacancy posted 4 hours ago
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