Fuel Engineer F/H at Nuvia in Boston, MA | Kablio

Role

Description

fuel analysis

data testing

thermal modeling

method development

safety analysis

tech docs

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

Requirements

hydraulic

thermal/mechanical

python

git

bs

3+ years

Hydraulic - Fluid dynamics, core/fuel assembly hydraulics, system behavior
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.
Strong communication and collaboration skills in a multi-disciplinary, remote environment.
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.
3+ years directly relevant experience in at least one focus area: Thermal/Mechanical, Hydraulic, Safety Analysis, or Codes & Methods.
BS in Nuclear, Mechanical, Chemical, or related Engineering (MS/PhD preferred for Safety Analysis or Methods roles).
Thermal/Mechanical - Heat transfer, thermodynamics, structural mechanics
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).
Knowledge of materials behavior (e.g., fuel, cladding, structural materials) under irradiation and thermal mechanical loads.

Benefits

Competitive compensation and benefits aligned with role seniority and impact.
Opportunity to contribute to a high impact U.S. fuel manufacturing program in a modern, remote first setup with purposeful onsite collaboration.

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

Information not given or found

Company

Overview

2019 Founded

Company Origin

The company was established with the goal of reinventing silicon technology for datacenter workloads.

$1.4B Acquisition

Major Deal

The company was acquired by Qualcomm in a significant financial transaction, marking a major milestone.

$300M Raised

Venture Funding

Secure substantial investment to drive innovation in custom ARM core development.

100% Performance

Chip Innovation

Development of a cutting-edge server chip that achieves remarkable performance improvements over existing solutions.

Operated privately until Qualcomm acquired it for $1.4 billion in March 2021, fueling its ambition.
Backed by major VCs, it raised nearly $300 million to develop its custom ARM cores.
Announced its Phoenix server chip in 2022, claiming up to 100% performance gains over incumbents.
Combines cutting-edge architecture with Qualcomm’s production muscle to challenge x86 dominance.
Its roadmap hints at bold moves beyond servers, aiming to reshape mobile and PC CPU landscapes.

Culture + Values

Fosters collaboration by bringing mutual aid, sharing successes and challenges, and maintaining clear communication toward a common goal.
Values openness and honesty, ensuring effective communication and information-sharing in all interactions.
Encourages humility by staying grounded, avoiding arrogance, and embracing feedback for continuous improvement.
Committed to delivering high standards and excellence in all endeavors.
Empowers employees to explore new ideas, take ownership, and drive innovation.

Environment + Sustainability

7g CO₂/kWh

Nuclear Power Emissions

Emissions from nuclear power plants are comparable with renewable energy sources and far lower than those from coal or gas.

1000g CO₂

Coal Emissions Comparison

CO₂ emissions from coal power plants are significantly higher than nuclear energy, highlighting the environmental advantage of nuclear.

500g CO₂

Gas Emissions Comparison

CO₂ emissions from gas power plants are higher than nuclear energy, emphasizing the cleaner alternative of nuclear power.

Purpose: build a safer, cleaner, sustainable world—recognizing CO₂ emissions reduction as essential.
Committed to the low-carbon nuclear sector as vital for environmental transition.
All facility lifecycle stages (design, construct, operate, decommission) are closely controlled—radioactive, thermal, chemical and industrial waste managed with strict procedures and innovative technologies.
Transparency under French TSN law guarantees public access to reliable environment and safety information.
Caring for the environment is a daily challenge, with commitment to nuclear safety and concrete clean energy actions.

Inclusion & Diversity

commits to avoiding unlawful discrimination in all aspects of employment and ensures equal treatment based on experience, abilities and qualifications.
Guiding principles include preventing discrimination, eliminating prejudice, promoting inclusion and celebrating diversity; ensures fairness in dealings; understands and appreciates diverse cultural backgrounds.
Embeds equality, diversity and inclusion in culture and reflects it in people’s behaviours; applies to applicants, employees, agency staff and contractors.
Parent group implements proactive equal opportunities policy focused on gender equality, employment of disabled individuals, and diverse backgrounds, with regular audits.

Articles

Services & Works

NUVIA Prevention

Logistics & Operations

Role

Description

fuel analysis

data testing

thermal modeling

method development

safety analysis

tech docs

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

Requirements

hydraulic

thermal/mechanical

python

git

bs

3+ years

Hydraulic - Fluid dynamics, core/fuel assembly hydraulics, system behavior
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.
Strong communication and collaboration skills in a multi-disciplinary, remote environment.
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.
3+ years directly relevant experience in at least one focus area: Thermal/Mechanical, Hydraulic, Safety Analysis, or Codes & Methods.
BS in Nuclear, Mechanical, Chemical, or related Engineering (MS/PhD preferred for Safety Analysis or Methods roles).
Thermal/Mechanical - Heat transfer, thermodynamics, structural mechanics
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).
Knowledge of materials behavior (e.g., fuel, cladding, structural materials) under irradiation and thermal mechanical loads.

Benefits

Competitive compensation and benefits aligned with role seniority and impact.
Opportunity to contribute to a high impact U.S. fuel manufacturing program in a modern, remote first setup with purposeful onsite collaboration.

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

Information not given or found

Company

Overview

2019 Founded

Company Origin

The company was established with the goal of reinventing silicon technology for datacenter workloads.

$1.4B Acquisition

Major Deal

The company was acquired by Qualcomm in a significant financial transaction, marking a major milestone.

$300M Raised

Venture Funding

Secure substantial investment to drive innovation in custom ARM core development.

100% Performance

Chip Innovation

Development of a cutting-edge server chip that achieves remarkable performance improvements over existing solutions.

Operated privately until Qualcomm acquired it for $1.4 billion in March 2021, fueling its ambition.
Backed by major VCs, it raised nearly $300 million to develop its custom ARM cores.
Announced its Phoenix server chip in 2022, claiming up to 100% performance gains over incumbents.
Combines cutting-edge architecture with Qualcomm’s production muscle to challenge x86 dominance.
Its roadmap hints at bold moves beyond servers, aiming to reshape mobile and PC CPU landscapes.

Culture + Values

Fosters collaboration by bringing mutual aid, sharing successes and challenges, and maintaining clear communication toward a common goal.
Values openness and honesty, ensuring effective communication and information-sharing in all interactions.
Encourages humility by staying grounded, avoiding arrogance, and embracing feedback for continuous improvement.
Committed to delivering high standards and excellence in all endeavors.
Empowers employees to explore new ideas, take ownership, and drive innovation.

Environment + Sustainability

7g CO₂/kWh

Nuclear Power Emissions

Emissions from nuclear power plants are comparable with renewable energy sources and far lower than those from coal or gas.

1000g CO₂

Coal Emissions Comparison

CO₂ emissions from coal power plants are significantly higher than nuclear energy, highlighting the environmental advantage of nuclear.

500g CO₂

Gas Emissions Comparison

CO₂ emissions from gas power plants are higher than nuclear energy, emphasizing the cleaner alternative of nuclear power.

Purpose: build a safer, cleaner, sustainable world—recognizing CO₂ emissions reduction as essential.
Committed to the low-carbon nuclear sector as vital for environmental transition.
All facility lifecycle stages (design, construct, operate, decommission) are closely controlled—radioactive, thermal, chemical and industrial waste managed with strict procedures and innovative technologies.
Transparency under French TSN law guarantees public access to reliable environment and safety information.
Caring for the environment is a daily challenge, with commitment to nuclear safety and concrete clean energy actions.

Inclusion & Diversity

commits to avoiding unlawful discrimination in all aspects of employment and ensures equal treatment based on experience, abilities and qualifications.
Guiding principles include preventing discrimination, eliminating prejudice, promoting inclusion and celebrating diversity; ensures fairness in dealings; understands and appreciates diverse cultural backgrounds.
Embeds equality, diversity and inclusion in culture and reflects it in people’s behaviours; applies to applicants, employees, agency staff and contractors.
Parent group implements proactive equal opportunities policy focused on gender equality, employment of disabled individuals, and diverse backgrounds, with regular audits.

Articles

Services & Works

NUVIA Prevention

Logistics & Operations