Flatiron Institute
5 days ago
Flatiron Research Fellow (Postdoctoral) in Software for Computational Quantum Physics Flatiron Institute, Simons Foundation in United States
Degree Level
Postdoc
Field of study
Computer Science
Funding
Full-time postdoctoral appointment with annual compensation of $95,000. Initial appointment is generally for two years with the possibility of renewal for a third year based on performance. Benefits are provided, and subsidized housing within walking distance of CCQ may be available.
Deadline
Oct 9, 2026
Country
United States
University
Flatiron Institute

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About this position
Flatiron Institute / Simons Foundation is advertising a Flatiron Research Fellow - Software position in the Center for Computational Quantum Physics (CCQ), directed by Antoine Georges and co-directed by Andrew Millis. This is a postdoctoral-level opening focused on the design and implementation of scientific software for research in computational quantum physics, with strong connections to condensed matter physics, materials science, quantum materials, applied mathematics, chemistry, and computer science.
The role centers on developing and expanding major open-source code efforts at CCQ, including TRIQS, AFQMC, and ITensor. Fellows are expected to devise improved algorithms, contribute to software libraries, perform theoretical and computational research, present at conferences and workshops, publish scientific results, and help mentor students. The position is highly collaborative and may involve interactions with partner institutions in the US and internationally.
Location: New York City, United States. The principal office/workspace is at the foundation’s offices in New York City. The appointment is generally for two years with the possibility of a third-year renewal based on performance. The annual compensation is $95,000, and subsidized housing within walking distance of CCQ may be available.
Eligibility highlights: Ph.D. in a relevant field; demonstrated expertise in software and algorithm development, computational methods, data analysis, modeling, machine learning, high-performance/parallel computing, or scientific simulation; experience with C++, Python, or Julia; strong communication skills; ability to work independently and in a team.
Application: Submit a CV with publication list, a statement of up to four pages describing software development experience and algorithm development, and three letters of recommendation. Applications are reviewed on a rolling basis; for full consideration, apply by 2026-10-09.
Funding details
Full-time postdoctoral appointment with annual compensation of $95,000. Initial appointment is generally for two years with the possibility of renewal for a third year based on performance. Benefits are provided, and subsidized housing within walking distance of CCQ may be available.
What's required
Ph.D. in a relevant field. Applicants should have demonstrated expertise in software and algorithm development, computational methods, data analysis, modeling, machine learning, high-performance and parallel computing, or scientific simulation. Experience with modern programming languages such as C++, Python, or Julia is required. Candidates must be able to perform research in condensed matter physics, chemistry, applied mathematics, computer science, or a related field, and have effective oral and written communication skills plus the ability to work independently and collaboratively.
How to apply
Prepare a CV with publication list, a statement of up to four pages on software development experience/skills and algorithm development, and arrange for three letters of recommendation. Submit materials through the Interfolio application portal; applications are reviewed on a rolling basis, with full consideration recommended by October 9, 2026.
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