TSSD Services, Inc. is a leading provider of professional and technical staffing solutions in the energy and utility sectors, focusing on the nuclear industry. They are seeking experienced Fuel Engineers to support a U.S. fuel manufacturer on analysis, design, and optimization of fuel and core systems, requiring expertise in thermal, hydraulic, and safety analysis disciplines.

Responsibilities:

Fuel performance & design analysis: Evaluate fuel and component behavior under normal, AOO, and accident scenarios; quantify margins and identify design improvements
Thermal hydraulic modeling: Build and maintain models for core/assembly flow, pressure drop, CHF/MDNBR, and heat transfer; perform sensitivity/uncertainty studies
Safety & licensing support: Execute transient/accident analyses (e.g., LOCA, RIA, loss of flow/heat sink); prepare inputs for safety case and regulatory submittals
Codes & Methods: Apply and (as assigned) enhance validated analysis methods; perform model V&V, document assumptions and biases, and maintain configuration control under quality procedures
Technical documentation: Produce clear calculation files, engineering memos, and customer facing technical reports; present results to internal and client design authorities
Data & testing: Define or review test plans, analyze test data, and reconcile model to test results for model improvement
Cross functional collaboration: Work with fuel design, materials, thermal hydraulics, manufacturing, and safety/licensing teams to drive integrated solutions
Standards & compliance: Follow applicable industry codes/standards and internal QA practices; contribute to continuous improvement of engineering workflows

Requirements:

BS in Nuclear, Mechanical, Chemical, or related Engineering (MS/PhD preferred for Safety Analysis or Methods roles)
3+ years directly relevant experience in at least one focus area: Thermal/Mechanical, Hydraulic, Safety Analysis, or Codes & Methods
Hands on experience with engineering analysis and model development
Proficiency in data analysis and scripting (e.g., Python/Matlab) and version control (e.g., Git)
Background with fuel performance, core thermal hydraulics, or safety analysis for light water reactors or comparable technologies
Experience preparing inputs for licensing or interacting with customer/regulatory stakeholders
Familiarity with common industry codes and solvers (examples may include fuel performance, TH system, sub channel, neutronics, or Monte Carlo tools), and with QA governed engineering processes
Knowledge of materials behavior (e.g., fuel, cladding, structural materials) under irradiation and thermal mechanical loads
Strong communication and collaboration skills in a multi-disciplinary, remote environment

NUVIA

Open Positions (1)

Engineering

Fuel Engineer F/H