Job Description

Talascend is currently seeking aNuclear Methods Software Engineer for a contract opportunity located in Bellevue, WA.


PRIMARY RESPONSIBILITIES:

• Create formal documentation of nuclear methods software requirements, design, implementation, and testing in support of licensing reactors.


• Update, improve, and/or create software to satisfy all licensing requirements during the Validation and Verification (V&V) process.


• Incorporate additional 3rd-party programs in our simulation ecosystem as necessary to support licensing.


• Design and execute sensitivity studies to understand the effects and validity of various modeling assumptions, including meshing, physics coupling, transport options, cross section preparation, fission product models, spatial kinetics, etc., and adjust methods as necessary.


• Train and support reactor designers and developers in the use of the design software suite.


• Build and apply methods to assess the propagation of uncertainty and their effect on safety margins.


• Enhance engineering team's ability to build models and make meaningful conclusions from simulation output through input tools, visualization, reports, etc.

• Advanced degree in Nuclear Engineering or equivalent and 4+ years of relevant experience preferred.


• Fast reactor physics and design intuition.


• Experience in understanding and executing nuclear design/analysis methodologies, including criticality, flux/power distributions, fuel management optimization, reactivity coefficients, shielding, activation, control rod worth, detector response, and uncertainty analysis, ideally with a focus on fast-neutron reactors.


• Excellent under-the-hood knowledge of the methods of reactor physics analysis (deterministic and stochastic particle transport, isotopic depletion, perturbation theory, nuclear data, kinetics, etc.).


• Experience with some nuclear engineering software such as DIF3D, MC2, PARTISN, MCNP, Serpent, SCALE, PARCS, APA, CASMO, DRAGON, ARMI, etc. preferred.


• Strong computational expertise required: we consider computers to be the universe at our fingertips rather than burdensome necessities.


• Strong programming skills in any language required, preferably in scientific computing, Python, C++, and Fortran skills are a bonus.


• Proven ability to integrate and automate simulation tools.


• Demonstrable capabilities with fundamental software development tools (e.g. IDEs, version control, profilers, debuggers, documentation builders, packaging tools).


• Experience interacting on nuclear methodology with the NRC under an ASME NQA-1 compliant QA environment preferred.


• Good working knowledge of general numerical methods and applied mathematics (e.g. PDEs, numerical stability, statistics, numerical analysis, dynamics).


• Strong formal technical documentation skills required.


• Ability to consistently deliver to an aggressive schedule.


• Self-motivated: able to seek out tasks and produce value aligned with team goals without waiting for next assignment.


• Passion for and dedication to software best practices.


• Willingness to openly give and accept professional criticism through code reviews and other venues.


• Strong verbal communication skills desired.


• The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect, and a desire to foster teamwork.

We thank all applicants for their interest. However, only those qualified individuals who closely meet the
qualifications of the position will be contacted. The details of the position are only a summary, other
duties may be assigned as necessary.

Background Check and Drug Screen may be required.

Pay range is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to
experience and geographic location. Talascend also offers a variety of benefits including: health and disability insurance, 401(k),
EAP, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date
of hire, plan requirements, schedule type, and client work site mandates.

Talascend is an Equal Opportunity Employer that recruits and hires qualified candidates without regard to race,
religion, sex, sexual orientation, gender identity, age, national origin, ancestry, citizenship, disability, or
veteran status.

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