Sr Radiation Physicist/Engineer – Microelectr

Job Summary

ZelTech is seeking a Senior Radiation Physicist/Engineer to lead predictive analysis and radiation-effects modeling for microelectronics integrated into space-and terrestrial assets.

Responsibilities

• Space Environment & Predictive Physics Modeling
• Develop, validate, and refine predictive physics models to evaluate single-event effects (SEE), total ionizing dose (TID), enhanced low-dose-rate sensitivity (ELDRS), and displacement damage dose (DDD) in advanced microelectronics intended for orbital and deep-space platforms.
• Perform high-fidelity transport and energy-deposition simulations across component, board, and system-level shielding configurations.
• Apply radiation impact theory to identify physical degradation mechanisms and single-event phenomena in semiconductor technologies (e.g., FinFET, FD-SOI, GaN, SiC, 3D ICs).
• Process, analyze, and synthesize large, high-dimensional datasets combining environment models, simulated physics outcomes, and accelerator ground-testing data.
• Design and execute statistical correlation studies comparing predicted asset radiation responses against empirical test data.
• Calibrate theoretical and computational frameworks using ground test results to continuously improve prediction accuracy and quantify model uncertainty for high-reliability mission profiles.

Requirements

• Must be a US citizen.
• Ability to obtain a TS/SCI clearance.
• Must have a master’s Degree or Ph.D. in Physics, Nuclear Engineering, Electrical Engineering (with a focus on semiconductor physics), Aerospace Engineering, or a related discipline and 7+ years of post-graduate professional or research experience in radiation physics, space environment analysis, or radiation effects on microelectronics.
• Successful background and drug screening check.
• Technical Skills & Expertise:
• Radiation & Microelectronics Theory: Deep theoretical understanding of radiation environments, charge transport, single-event transients/upsets, micro-dosimetry, and displacement damage in microelectronics.
• Advanced Data Analysis: Proficiency in statistical data analysis, regression models, and data visualization using programming environments such as Python (NumPy, SciPy, Pandas), MATLAB, or R.
• Empirical Data Correlation: Proven track record of evaluating radiation test data (heavy ion, proton, neutron, gamma, X-ray) and conducting data-driven validation against predictive models for flight microelectronics.

Soft Skills

• Strong technical writing capability with experience writing comprehensive analytical reports and readiness reviews.
• Excellent communication skills, with the ability to translate complex physics concepts for cross-functional teams.
• Strong problem-solving mindset and comfort navigating multi-variable, empirical-versus-modeled data discrepancies.

Preferred Requirements

• Direct experience supporting satellite programs, space domain payloads, or high-reliability (Class S / Space-grade) microelectronics development.
• Familiarity with space testing standards and guidelines (e.g., MIL-STD-883 Method 1017/1019, JESD57, ASTM, ESCC 22900).
• Experience with advanced node geometries ( ) or wide-bandgap semiconductors (GaN, SiC) engineered for space power and RF systems.
• Background in analyzing telemetry data from on-orbit radiation monitors or spacecraft microelectronics to validate ground predictions.

About ZelTech

Zel Technologies is a trusted leader in national security, providing comprehensive research, development, engineering, and operational support to the Department of Defense, the Intelligence Community, and federal agencies.

Benefits

• Medical, Dental and Vision Insurance
• 401k immediate vesting with company match
• Flexible Spending Accounts Health Savings Account with company contributions
• Employee Assistance Program (EAP)
• Bonuses for performance
• Voluntary life/accidental death & dismemberment
• Special training programs
• Voluntary benefits (accidental, critical illness, whole life)
• Group life insurance (Company paid)
• Short-term and Long-term Disability Insurance (Company paid)
• Paid Time Off (PTO), Holiday Leave, Jury Duty, and Military Leave
• Health and fitness reimbursement
• Employee discounts on various services and products