{"id":3083412,"url":"https://alion.io/job/kbr-senior-geophysicist","title":"Senior Geophysicist","company":{"id":4344,"name":"KBR","domain":"kbr.com","url":"https://alion.io/company/kbr","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":244,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":9,"computed_at":"2026-10-23T05:54:15Z"}},"role":"Science & Research","role_family":"Science & Research","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":106000,"max_usd":203000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1104},"experience_years_min":15,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Machine Learning","optional":false}],"status":"live","first_seen_at":"2026-08-14T00:00:00Z","employer_posted_date":"2026-08-14","last_verified_at":"2026-10-23T22:04:19Z","board_verified":true,"closed_at":null,"days_open":70,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":70},"description":"Title:\nSenior GeophysicistBelong. Connect. Grow. with KBR!\nAround here, we define the future.\nWe are a company of innovators, thinkers, creators, explorers, volunteers, and dreamers. But we all share one goal: to improve the world responsibly and safely.\nKBR has a dynamic opportunity for professional growth! We are looking for a Senior Geophysicist to provide scientific and engineering support to the Air Force Technical Applications Center (AFTAC), located on Patrick SFB, FL. AFTAC’s vital mission is to operate and maintain the U.S. Atomic Energy Detection System (USAEDS) to monitor compliance with nuclear treaties and detect nuclear explosions underground, underwater, in the atmosphere, and in space.\n***Must be a US Citizen***\n***Must have a fully adjudicated (not an interim) Top Secret clearance with SCI eligibility***\nRelocation assistance may be available for qualified candidates.\nRESPONSIBILITIES:\nApply advanced geophysical and seismological principles to directly support AFTAC’s global nuclear explosion monitoring mission.\nAnalyze complex waveform data from seismic, hydroacoustic, and infrasound networks to detect, locate, and characterize potential nuclear events.\nDevelop, evaluate, and implement advanced methodologies to lower event detection thresholds and improve discrimination between natural geophysical activity (e.g., earthquakes) and artificial explosions.\nCollaborate with government scientists, analysts, and interdisciplinary teams to deliver comprehensive technical reports, scientific briefings, and analytical tools that support nuclear treaty monitoring objectives.\nEDUCATION:\nPh.D. in Geophysics, OR a Master's degree in Geophysics (or a related discipline) with professional experience equivalent to a Ph.D.\nDESIRED QUALIFICATIONS:\nMinimum of 15 years of relevant experience performing tasks related to global geophysical monitoring, seismology, or infrasound/acoustic analysis.\nProven track record of integrating existing prototype scientific products into operational mission capabilities.\nExperience utilizing machine learning techniques for signal detection, event association, and/or event discrimination.\nExperience in software development utilizing Large Language Models (LLMs).\nAdvanced competency in mathematics, physics, and/or statistics, alongside a strong scientific background in wave propagation and geophysical signal analysis.\nStrong interpersonal and communication skills to successfully collaborate within a multidisciplinary team of scientists and military personnel.\nExperience working within a government Sensitive Compartmented Information Facility (SCIF).\nAt KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to an ongoing journey toward being a People First company. That commitment is central to our team of team’s philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver - Together.\nKBR Benefits\nKBR offers a selection of competitive lifestyle benefits which could include 401K plan with company match, medical, dental, vision, life insurance, AD&D, flexible spending account, disability, paid time off, or flexible work schedule. We support career advancement through professional training and development.\nClick here to learn more: KBR Benefits New | KBR\nBelong, Connect and Grow at KBR\nAt KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company. That commitment is central to our team of team’s philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver - Together.\nKBR is an equal opportunity employer. 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