Atomic Clocks and Precision Timekeeping Research Associate

Atomic Clocks and Precision Timekeeping Research Associate – 2026

Paid holidays, sick time, 401(k), relocation assistance.

Jan 16, 2026

The Aerospace Corporation is the trusted partner to the nation's space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space‑ delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers.

PSL supports the effective and timely development and operation of national security systems through scientific research and the application of advanced technologies. PSL has more than 150 specialized laboratories used to test, analyze, and troubleshoot virtually every aspect of rocket and satellite system design, development, construction, deployment, and operation.

We are hiring an Atomic Clocks and Precision Timekeeping Research Associate. The lab is involved in a broad range of both basic and applied precise‑timekeeping activities, including GPS clock exercises and anomaly resolution; clock ensemble algorithms and demonstration; environmental and radiation effects; laser physics for clocks and atomic devices; frequency comb experiments; and next‑generation clock assessment and development.

Full‑time, on‑site at El Segundo, CA.

• Assist lab staff to develop, review, document, troubleshoot, and execute test procedures that mitigate risks and inform decisions about next‑generation satellite systems.
• Prepare basic instrument control code to support experiments.
• Analyze and prepare test data for reports and presentations.
• Maintain laboratory test equipment and support design, procurement, training, and documentation for new laboratory capabilities.
• Perform routine lab safety inspections, maintain lab space organization, and coordinate with facilities staff to fulfill work orders.
• Review technical literature to answer specific mission‑critical questions.
• Utilize internal and external resources to develop and grow job‑specific hands‑on laboratory skills and knowledge.
• Occasional travel in support of test campaigns.

• Strong written and oral communication skills.
• Team‑oriented with excellent interpersonal skills.
• Organizational, time‑management, and project‑management skills.
• Flexibility and adaptability to changing organizational needs.
• Knowledge of LabVIEW, Python, or MATLAB.
• Willingness to travel occasionally to work locations or customer sites as required.

• Bachelor’s degree in Physics, Engineering, Chemistry, Mathematics, Computer Science, or related discipline (conferred within last 12 months).
• 0–1 year of industry work experience.
• Prior experience in a laboratory environment and with lab safety protocols.
• Transcripts required. Ability to obtain and maintain a security clearance; U.S. citizenship required.

• Master’s degree in a related discipline (conferred within last 12 months).
• Coursework or experience with precision timekeeping, atomic clocks, oscillators, optical frequency combs, spacecraft and satellites, and/or PNT.
• Optics/Laser research or industry laboratory experience (laser alignment, laser noise and linewidth measurements, laser safety).
• Basic circuit design, noise measurement, RF electronics, RF measurements (S‑parameters), or on‑chip probing.

• Comprehensive health care and wellness plans.
• Paid holidays, sick time, and vacation.
• Standard and alternate work schedules, including telework options.
• 401(k) Plan – company‑paid benefit of 8%, 10%, or 12% of eligible compensation based on years of service with matching contributions; immediate eligibility and vesting upon hire.
• Flexible spending accounts.
• Variable pay program for exceptional contributions.
• Relocation assistance.
• Professional growth and development programs.
• Education assistance programs.
• Inclusive work environment built on teamwork, flexibility, and respect.

The Aerospace Corporation is an equal‑opportunity employer. All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, age, sex (including pregnancy, childbirth, and related medical conditions), sexual orientation, gender, gender identity or expression, color, religion, genetic information, marital status, ancestry, national origin, protected veteran status, physical disability, medical condition, mental disability, or disability status and any other characteristic protected by state or federal law.

If you need assistance using our online application tools or a reasonable accommodation to complete the application process, please contact us at 310 336 5432 or peoplemangmnt.mailbox.