Scientist II

About the Role

New ideas are all around us, but only a few will change the world. That's our focus at JPL. We ask the biggest questions, then search the universe for answers—literally. We build upon ideas that have guided generations, then share our discoveries to inspire generations to come. Your mission—your opportunity—is to seek out the answers that bring us one step closer.

Located in Pasadena, California, JPL has a campus-like environment situated on 177 acres in the foothills of the San Gabriel Mountains and offers a work environment unlike any other: we inspire passion, foster innovation, build collaboration, and reward excellence. The Jet Propulsion Laboratory, California Institute of Technology, invites applications for a Staff Scientist position working in cosmology. JPL has an established culture for collaborations and opportunities for developing new ideas and pursuits and is committed to fostering an enriching and rewarding research environment with strong support and coaching for professional and personal development.

Responsibilities

• Play a pivotal role in the analysis and interpretation of the next generation of dark sector surveys.
• Bridge the gap between raw measurement and theoretical insight, providing critical expertise in cosmological simulations, modeling, and interpretation of cosmological data.
• Contribute to the JPL-led Open Universe cosmological simulations project and the Euclid and Roman science teams.
• Shape the post-Roman landscape by developing mission concepts and strategies to influence the 2030 Decadal Survey.
• Integrate astrophysical, instrumental, and statistical systematics into robust models to define the future of how we understand the dark universe.
• Capitalize on the imminent release of Euclid's ~1900 square degrees (Data Release 1) and the imminent launch of Roman.

Requirements

• A PhD degree in Astrophysics or a related discipline, or a Master's in a related discipline with a minimum of 1 year of related experience, or a Bachelor's degree in a related discipline with a minimum of 3 years of related experience.
• Deep technical foundation in some combination of cosmological simulations, modeling, and cosmological data interpretation.
• Proven expertise in weak lensing and/or galaxy clustering as primary probes for investigating dark matter and dark energy.
• Strong interpersonal skills and a demonstrated ability to thrive within a collaborative team environment.
• Excellent written and verbal communication skills and a proactive commitment to fostering diverse ideas and backgrounds in the workplace.

Preferred Skills

• A PhD degree in Astrophysics or a related discipline.
• Demonstrated professional reputation as a productive researcher with a track record of publications in peer-reviewed journals and presentations at national and/or international conferences.

Complete applications will include a cover letter describing the applicant's vision for their role at JPL as a leader and contributor in the fields of dark energy cosmology and dark matter, a curriculum vita including a bibliography of peer-reviewed and other publications, a statement on research experience and research objectives (no more than 3 pages), and contact information for at least three professional reference writers. Applications received by May 15th, 2026 will receive full consideration.

Benefits

JPL has a catalog of benefits and perks that span from the traditional to the unique. This includes a variety of health, dental, vision, wellbeing, and retirement plans, paid time off, learning, rideshare, childcare, flexible schedule, parental leave, and many more. Our focus is on work-life balance and living healthy, fulfilling lives as we Dare Mighty Things Together. For benefits-eligible positions, benefits are effective the first day of the month coincident with or immediately following the employee's start date.

Pay

The typical full-time equivalent annual hiring range for this job in Pasadena, California is $107,744 - $138,840. In extending an offer, Jet Propulsion Laboratory considers factors including, but not limited to, the candidate's job-related skills, experience, knowledge, and relevant education/training.