Associate Research Scientist - Software, Center Computational Quantum Physics; CCQ

Associate Research Scientist - Software, Center for Computational Quantum Physics (CCQ)

The CCQ seeks an associate research scientist—software for the development of a CCQ quantum Monte Carlo software suite, featuring auxiliary-field and related approaches for both model systems and real materials. This full-time position offers opportunity at the interface of science and computing, with flexibility to be immersed in frontier scientific research while focusing on computing, algorithms, and technical support. This position is based at the Flatiron Institute, Simons Foundation in New York City.

Appointment details:
Associate Research Scientists-Software are typically appointed for an initial three-year period; the appointment may be renewed for up to another three years. They may be reviewed for promotion to a non term-limited position as a Research Scientist or Research Scientist-Software.

Responsibilities

• Develop, expand, and maintain the CCQ software suite devoted to general-purpose, high-performance auxiliary-field quantum Monte Carlo computations.
• Assist with the development and maintenance of other software suites as needed.
• Create documentation, respond to user questions, and address bug reports to support the associated scientific community.
• Provide training through mentoring junior scientists; give lectures and tutorials at the Flatiron Institute; engage in external activities such as summer schools as needed.

Qualifications

Education: PhD in Physics, Theoretical Chemistry or related field.

• Excellent abilities in the development of scientific software for research.
• Proficiency with a major programming language such as C++.
• Effective oral and written communication skills.
• Ability to work well independently as well as in a collaborative team environment.

Other Desired Qualifications:

• Experience with Quantum Monte Carlo or closely related methodologies.
• Experience with modern electronic structure or quantum chemistry codes, or with large-scale lattice model calculations.
• Strong knowledge in quantum many-body physics and chemistry.
• Experience with the Julia or Python programming language.
• Experience with high-performance computing including MPI and GPU, and with optimizing code performance in Linux/Unix environments.

Compensation and Benefits

• The full-time annual compensation range for this position is $110,000–$165,000.
• The Simons Foundation provides employees with an outstanding benefits package in addition to competitive salaries.

Application Instructions

Required Application Materials

• CV
• Vision statement outlining both past accomplishments and plans for engagement with the software development and scientific research at the Flatiron Institute
• Three (3) letters of recommendation submitted confidentially by the letter writers through Interfolio

Review Window

Review of applications will begin on or about Oct. 15, 2025.

Equal Employment Opportunity Statement

Our commitment to expanding pathways to science and opportunities for all:
The Simons Foundation is committed to advancing basic science and mathematics to benefit humankind and to broadening the scientific community and open pathways to science and mathematics careers. The Simons Foundation provides equal opportunities to all applicants without regard to race, religion, color, age, sex, pregnancy, national origin, sexual orientation, gender identity, genetic disposition, neurodiversity, disability, veteran status, or any other protected category under federal, state, and local law.

About the Organization and Location

This position is based at the foundation’s offices in New York City.