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Job #: TR-662996
Location: Patrick Afb, FL
Category: Physicist
Schedule (FT/PT): Full time
Travel Required: Yes, 10% of the time
Shift: Day
Potential for Telework: No
Clearance Required: Top Secret/SCI
Referral Eligibility: Yes
Group: Defense & Intel

Job Description:
Leidos is seeking a Geophysicist/Seismologist to join the US Prompt Diagnostic System (USPDS) team at Air Force Technical Application Center (AFTAC) at Patrick AFB, FL. The multi-year contract is in support of the National Technical Nuclear Forensics (NTNF) mission. Candidates must currently possess a TS/SCI security clearance in order to be considered.

The Geophysicist will serve as a subject matter expert (SME) to provide speed of sound (SOS) technical solutions to the USPDS program and operations team in the SOS areas of seismic, overpressure, and infrasound. Perform as SME's for event detection, reporting and exercises to support the USPDS mission. Consult with Department of Energy (DOE) SOS sensor developers to understand and evaluate sensor calibrations and sensor data outputs. Produce technical evaluations for events of interest (EOI) and to support exercises for the USPDS mission capability. Perform sensor data background characterization, statistical analysis and data evaluation for SOS technologies. Complete background assessment and impact of noise on the sensors and site locations and produce an assessment of sensor event triggers, which shall include statistical, time variations, and efficiencies. Additionally, the Geophysicist will assess SOS sensors performance and understand the location nodal locations capabilities and background to understand and differentiate event of interest as man-made versus natural occurring triggers. Model and evaluate sensor performance for SOS technologies and document models with naturally occurring false triggers in nodal locations to understand site configurations and sensor responses. Conduct impulse assessment utilizing historic modeled sources, lightning, cosmic, geophysical and other data input sources provided by Government, which will include propagation and source modeling for performance and requires a detailed impulse assessment. Modeling activities include evaluation of nuclear yield determination and require discriminant investigation, determination of data corrections, compilation of reference data sets, calibration of discriminants, examination of data/model biases, modeling signal propagation through realistic atmospheres, investigation of signal-source scaling for a variety of source conditions and generalized event discrimination methodologies in support of the contract requirements.
Basic Qualifications

Must be a US citizen with an active DoD Top Secret/SCI security clearance.
Bachelor's degree in Seismology, Geophysics or related scientific discipline with 10-13 years of experience or Master with 6-10 years of experience.
Demonstrated experience in the collection and analysis of geophysical time-series data (seismic, hydroacoustic, and/or infrasound).
Knowledge of elastic wave propagation.
Competence in digital signal processing and time-series analysis.
Experience with earthquake and/or nuclear seismology.
Experience with seismic monitoring systems.
Solid written and verbal communication skills, as preparation of oral presentations and of reports is required.
Experience with Oracle SQL.
Programming skills in scripted language (e.g., Matlab, GMT, or SPlus).
Additional Qualifications

PhD in Seismology, Geophysics or related scientific discipline is a plus.
Experience with GIS and other scientific evaluation tools is a plus.
Experience in a Unix environment to include Solaris 10, UNIX and LINUX.
Programming familiarity with C language and Perl scripting.

Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, homeland security, civil, and health markets. The company’s 31,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $10.17 billion for the fiscal year ended December 29, 2017. (NYSE: LDOS) All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.

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