Postdoctoral Appointee for Large Language Models (LLM) and complex systems

Updated: about 1 month ago
Location: Lemont, ILLINOIS
Job Type: FullTime

We are seeking a highly motivated and innovative researcher working at the interface of modeling complex system and AI to join our team developing Large Language Models (LLM) based agentic code for completing complex tasks, such as designing, parameterizing, and assessing simulations. The candidate will be expected to research and develop novel approaches for LLM-based agentic code generation and optimization, collaborate with LLM training teams to continuously integrate new LLMs into existing systems and workflows, and analyze results to improve performance and efficiency.

Position Requirements

  • Completed or soon-to-be completed PhD (within the last 0-5 years) in Computer Science, Physics, Mathematics, or related field
  • Experience with modeling complex systems or natural language processing
  • Proficiency in programming languages such as Python, TensorFlow, PyTorch, and/or similar frameworks
  • Familiarity with course-grained modeling, renormalization group, large language models, reinforcement learning, multi-agent systems, and/or simulation environments
  • Highly self-motivated candidate who demonstrates creative and proactive approaches towards scientific problem solving as evidenced by publications and recommendations
  • Effective communication and collaboration skills, with the ability to work effectively in a multidisciplinary team
  • Ability to model Argonne’s core values of impact, safety, respect, integrity, and teamwork.
  • Ability to make our laboratory a safe, welcoming, inclusive, and accessible environment where all can thrive.
  • This job description documents the general nature of work but is not intended to be a comprehensive list of all activities, duties and responsibilities required of job incumbent. Consequently, job incumbent may be required to perform other duties as assigned.

Job Family

Postdoctoral Family

Job Profile

Postdoctoral Appointee

Worker Type

Long-Term (Fixed Term)

Time Type

Full time


As an equal employment opportunity and affirmative action employer, and in accordance with our core values of impact, safety, respect, integrity and teamwork, Argonne National Laboratory is committed to a diverse and inclusive workplace that fosters collaborative scientific discovery and innovation. In support of this commitment, Argonne encourages minorities, women, veterans and individuals with disabilities to apply for employment. Argonne considers all qualified applicants for employment without regard to age, ancestry, citizenship status, color, disability, gender, gender identity, gender expression, genetic information, marital status, national origin, pregnancy, race, religion, sexual orientation, veteran status or any other characteristic protected by law.



Argonne employees, and certain guest researchers and contractors, are subject to particular restrictions related to participation in Foreign Government Sponsored or Affiliated Activities, as defined and detailed in United States Department of Energy Order 486.1A. You will be asked to disclose any such participation in the application phase for review by Argonne's Legal Department.  

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