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HomeCompaniesLast EnergySenior Nuclear Engineer

Senior Nuclear Engineer

Last Energy · Austin, TX · On Site · Active · Lever

Job facts

FieldValue
CompanyLast Energy
TitleSenior Nuclear Engineer
Normalized title-
Department / teamLast Energy / Engineering
LocationAustin, TX, United States
Work modelOn Site
Employment typeFull Time
Salary-
Statusactive
ATS providerLever
Posted / first seen2025-11-12 / 2026-05-29
Changed / last seen2026-05-29 / 2026-06-06

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PageWhat it containsOpen
Company jobsActive postings from Last Energy.Open
Company breakdownsRole, location, ATS, and work model facets for this company.Open
ATS provider jobsActive postings observed through Lever.Open
Provider filtered searchThe same provider as a filtered job collection.Open
City jobsActive postings in Austin.Open
Department jobsActive postings in Last Energy.Open
Work model jobsActive On Site postings.Open
Lifecycle eventsOpen, update, close, and reopen events for this posting.Open
Original postingCanonical source or apply URL captured from the ATS.Open

Linked records

CompanyLast Energy
Sourcee18f3d3c-05b6-44f4-9bcf-797fbc0759a1
ATS providerLever

Description

Last Energy is a fast-growing technology company redefining how nuclear power is designed, manufactured, and deployed. We are building a new generation of modular, distributed nuclear plants engineered for speed, scalability, and real-world impact. We are seeking a Senior Nuclear Engineer to join our core engineering team and drive the analytical rigor behind our microreactor design. This role sits at the intersection of innovation and execution, where complex modeling meets the fast-paced reality of startup deployment. This role will act as both a technical leader and independent thinker, directly influencing design decisions that shape the future of energy. Key Duties & Responsibilities Lead and perform complex thermal-hydraulic and neutronics calculations Independently verify and approve engineering calculations and safety analyses prepared by peers and junior engineers Provide expert-level review of design basis documents, licensing submittals, and technical evaluations Mentor and guide junior engineers in analytical methods and modeling techniques Develop and maintain detailed models for reactor systems and accident scenarios Participate in peer reviews and regulatory interactions as a technical authority Contribute to continuous improvement initiatives by identifying gaps and proposing innovative solutions Adapt quickly to evolving project needs, regulatory changes, and emergent technical challenges Qualifications Bachelor’s or Master’s degree in Nuclear Engineering or a closely related discipline. 7+ years of experience in nuclear systems analysis, safety analysis, or reactor physics. Proficiency with at least two of the following codes: TRACE, MELCOR, MCNP, VERA, SCALE, SERPENT. Demonstrated experience performing and reviewing complex engineering calculations. Strong technical writing and communication skills, with the ability to present to both technical and non-technical audiences. Department of Energy regulatory experience is preferred

Full job record

Job IDdb8b39bdd961d8fccd8bee47390039c585fe5e6c
Org ID44172102-ac46-4b13-9299-267f8cc938f8
Source IDe18f3d3c-05b6-44f4-9bcf-797fbc0759a1
Board IDe18f3d3c-05b6-44f4-9bcf-797fbc0759a1
Providerlever
Provider Job Keyd8e0b8ed-acf7-4fa4-a2c0-2161ac79fb0f
TitleSenior Nuclear Engineer
Normalized Title
Statusactive
Activeyes
Location TextAustin, TX
DepartmentLast Energy
TeamEngineering
Employment TypeFull-time
Workplace Typeon_site
Remote Policy
CountryUnited States
RegionTX
CityAustin
Salary Raw
Salary Min
Salary Max
Salary Currency
Salary Period
Source URLhttps://jobs.lever.co/last-energy/d8e0b8ed-acf7-4fa4-a2c0-2161ac79fb0f
Apply URLhttps://jobs.lever.co/last-energy/d8e0b8ed-acf7-4fa4-a2c0-2161ac79fb0f/apply
First Seen At2026-05-29 07:01:31Z
Last Seen At2026-06-06 07:57:48Z
Last Checked At2026-06-06 07:57:48Z
Last Changed At2026-05-29 07:01:31Z
Inactive At
Source Posted At2025-11-12 17:42:00Z
Source Updated At
Raw Payload Uris3://job-postings-prod-raw-590183727216/raw/provider=lever/board=last-energy/date=2026-06-06/2026-06-06T07-57-48-547Z-77ef796224b7b843710aaca2b37eaf9675785ed8ef5ec29527cd9877badc4231.json
Event Fields
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  "last_changed_at": "2026-05-29T07:01:31.999Z",
  "active_status": "active"
}
Parsed Structured
{
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  "salary_period": null,
  "workplace_type": "on_site",
  "salary_currency": null
}
Extensions
{}
Native Structured
{
  "lists": [
    {
      "text": "Key Duties & Responsibilities",
      "content": "<li>Lead and perform complex <b>thermal-hydraulic and neutronics calculations</b></li><li>Independently verify and approve <b>engineering calculations and safety analyses</b> prepared by peers and junior engineers</li><li>Provide <b>expert-level review</b> of design basis documents, licensing submittals, and technical evaluations</li><li><b>Mentor and guide</b> junior engineers in analytical methods and modeling techniques</li><li>Develop and maintain detailed models for <b>reactor systems and accident scenarios</b></li><li>Participate in <b>peer reviews and regulatory interactions</b> as a technical authority</li><li>Contribute to <b>continuous improvement initiatives</b> by identifying gaps and proposing innovative solutions</li><li><b>Adapt quickly</b> to evolving project needs, regulatory changes, and emergent technical challenges</li>"
    },
    {
      "text": "Qualifications",
      "content": "<li>Bachelor’s or Master’s degree in Nuclear Engineering or a closely related discipline.</li><li>7+ years of experience in nuclear systems analysis, safety analysis, or reactor physics.</li><li>Proficiency with at least two of the following codes: TRACE, MELCOR, MCNP, VERA, SCALE, SERPENT.</li><li>Demonstrated experience performing and reviewing complex engineering calculations.</li><li>Strong technical writing and communication skills, with the ability to present to both technical and non-technical audiences.</li><li>Department of Energy regulatory experience is preferred</li>"
    }
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  "country": "US",
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  "salaryRange": null,
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}
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