Senior Nuclear Radiation Shielding Engineer (Madrid) - $155,000 - $185,000 A Year

The Senior Nuclear Radiation Shielding Engineer will support design, analysis and licensing of the SMR?300, an integral pressurized water reactor SMR.
The selected candidate will join a growing radiation protection and analysis team focused on source?term development, shielding design and optimization, dose assessment and licensing documentation.
This role serves as a hands?on technical contributor, supporting plant design optimization and regulatory compliance through defensible radiological analyses.
The engineer works independently performing detailed analyses, benchmark methods and models, clearly documents results and mentors junior engineers in analysis techniques and technical documentation.Location: Versátil – role may be based in Camden, NJ; Jupiter, FL; Cranberry, PA; Madrid, Spain; Bristol, UK; or Kyiv, Ukraine.Primary ResponsibilitiesDevelop radiation source terms for normal operation, anticipated operational occurrences, and postulated accident conditions.Perform radiation transport analyses to evaluate dose rates in plant systems, structures, and components.Design and optimize radiation shielding to meet occupational exposure and site dose limits in accordance with ALARA principles.Conduct radiological consequences and control room habitability analyses using accepted regulatory methodologies.Perform reactor pressure vessel and structural component fluence evaluations to support shielding and material assessments.Benchmark analytical models against experimental data and industry guidance to ensure technical defensibility.Prepare technical reports and contribute to licensing documentation, including PSAR, FSAR, and responses to NRC Requests for Additional Information (RAIs).
Participate in technical meetings with internal teams, partners, clients, and the U.S. Nuclear Regulatory Commission.Mentor junior engineers and support the development of analysis standards and documentation best practices.RequirementsEligibility to work under U.S. Department of Energy 10 CFR Part 810 export control regulations.Bachelor's degree in Nuclear Engineering, Physics, or a closely related field with 10+ years of relevant experience.Master's degree with 8+ years of relevant experience.PhD with 6+ years of relevant experience.Demonstrated experience in radiation shielding design, source term development, and radiological dose assessment.Proficiency with radiation transport and dose analysis tools such as MCNP, SCALE, ADVANTG, GALE, ARCON96, RADTRAD, or equivalent codes.Working knowledge of nuclear power plant operations and radiological protection programs.Familiarity with NRC licensing processes and NUREG?**** Chapters 11 and 12 requirements.Strong technical writing, documentation, and communication skills.Programming or scripting experience (e.G., Python) to support analysis automation and data processing.Experience supporting NRC audits, RAIs, and technical review meetings.Experience integrating shielding design with plant layout and multidisciplinary engineering teams.CompensationCompensation for U.S.-based roles ranges from $155,000 to $185,000 annually and is determined by skills and experience.
Compensation for roles based outside the U.S. will be set in accordance with local market practices and applicable currency requirements.BenefitsBenefits for U.S.-based employees include a comprehensive total rewards package designed to support health, wellbeing, and long?term financial security.
The package includes:Medical, dental, and vision coverage with generous employer contributions and Day 1 eligibility.FLEX program with hybrid work opportunities for eligible roles.401(k) retirement plan with up to a 5% company match and immediate vesting.Paid time off and 11 paid holidays.Wellness and commuter programs.Company?paid life and AD&D insurance.Education assistance and professional development support.Employee Assistance Program and optional voluntary benefits.Benefits for employees based outside the U.S. will vary by country and will be provided in accordance with local market practices, statutory requirements, and regional norms.
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