Nuclear Engineer
Ecotal
Overview Senior Nuclear Engineer – Advanced Reactors Location: Austin, TX Company Overview A fast-growing startup is developing next-generation small nuclear reactors with a focus on rapid hardware iteration and real-world deployment. The company emphasizes practical engineering solutions, moving quickly from design to testing, and tackling high-impact nuclear energy challenges. Responsibilities The Senior Nuclear Engineer will support reactor modeling, neutronics simulations, and thermal-hydraulics analysis for advanced reactor systems. The engineer will provide technical insight that directly informs design decisions, operational strategies, and regulatory submissions. Qualifications Background in nuclear engineering, reactor physics, or closely related fields. Experience with reactor modeling and system-level analysis. Familiarity with tools such as MCNP, SCALE, or similar is a plus. Analytical, collaborative, and comfortable working in a fast-paced technical environment. Why It’s Attractive Opportunity to work on cutting-edge reactor technology. Contribute to meaningful design and regulatory decisions in a small, high-performing team. Competitive benefits and equity opportunities. Diversity of experience and perspective is valued, and all qualified candidates are encouraged to apply. #J-18808-Ljbffr Ecotal
$70k
...Postdoctoral Fellow, Nuclear Engineering Teaching Lab, Cockrell School of Engineering Hiring Department: Walker Department of Mechanical Engineering Position Open To: All Applicants Weekly Scheduled Hours: 40 FLSA Status: Exempt Earliest Start Date: Immediately...SuggestedTemporary workCasual workLive inImmediate start- ...Carries out research in the area of applied robotics for use in extreme environments, particularly in the nuclear, oil and gas industries, and/or military applications though other application areas may be considered Co-authors peer-reviewed researchCollaborates with other...Suggested
$70k
...Job Posting Title: Postdoctoral Fellow, Nuclear Engineering Teaching Lab, Cockrell School of Engineering ---- Hiring Department: Walker Department of Mechanical Engineering ---- Position Open To: All Applicants ---- Weekly Scheduled Hours:...SuggestedTemporary workFor contractorsCasual workLive inWork at officeImmediate start- Aalo Atomics is seeking a Licensing Engineering Intern to support licensing, regulatory strategy, and safety-basis development for advanced reactor projects, with emphasis on non-LWRs and DOE/NRC-regulated facilities. Work under experienced engineers to assist with regulatory...SuggestedInternship
- Aalo Atomics is seeking a Licensing Engineer to lead licensing, regulatory strategy, and safety-basis development for non-LWR reactor projects in the U.S. You will apply RIPB methods and PRA insights, ensuring NRC/DOE compliance throughout design, construction, and operation...Suggested
$151.1k - $207.76k
...personal growth, all while valuing your unique contributions. Varian Medical Systems, a Siemens Healthineers company is seeking a Nuclear Engineer or Nuclear Chemist to join our Interventional Oncology (IO) development team. The individual will be a member of our growing...Temporary workWork at officeLocal area- ...Description Last Energy is a fast-growing technology company redefining how nuclear power is designed, manufactured, and deployed. We are building a new of modular, distributed nuclear plants engineered for speed, scalability, and real-world impact. We are seeking a Senior...
- A fast-growing startup is seeking a Senior Nuclear Engineer focusing on advanced reactor systems in Austin, Texas. The role involves supporting reactor modeling and thermal-hydraulics analysis, providing technical insights for design and operational decisions. Ideal candidates...
- ...microreactors designed to deliver affordable, scalable, and reliable nuclear power. Our mission is to make nuclear energy globally... ...sustainable future. About the role We are hiring a Senior Nuclear Test Engineer to develop test methods, write procedures, and execute testing...
- ...are in the process of building the Energy Amplifier — a novel nuclear fission system in which a particle accelerator drives a subcritical... .... ROLE SUMMARY We are looking for a Nuclear Export Compliance Engineer to own the day-to-day administration and improvement of our 10...For contractors
- Subcritical Systems, Inc. in Austin, Texas is seeking a Nuclear Export Compliance Engineer to own the day-to-day administration of our 810 compliance program as we develop the Energy Amplifier and scale accelerator technology. The role focuses on translating DOE requirements...
- Lumicity in Texas seeks a Lead Engineer to provide senior technical leadership across reactor design, licensing, construction, and engineering... ..., and contractors. The ideal candidate brings 10+ years in nuclear or related engineering, strong leadership and communication...For contractors
- Aalo Atomics is seeking a Systems Engineer to support the Aalo-X reactor. You will oversee safety-related reactor systems, manage requirements... ..., and collaborate across teams to ensure compliance with nuclear safety standards. The role emphasizes design, documentation,...
- Aalo Atomics is seeking a Senior Quality Assurance Engineer to lead the NQA-1 QA program, oversee supplier quality, and elevate nuclear safety culture across manufacturing. The role reports to the QA Director and requires strong regulatory knowledge and hands-on training...
- Blykalla in Austin, TX, is seeking a Nuclear Quality Assurance Engineer to strengthen design quality for a first-of-a-kind lead-cooled reactor program. You will embed QA into engineering, translate requirements into design controls, and verify that evidence supports critical...
$120k - $160k
What we do at Blykalla Blykalla is a global leader in advanced nuclear technology, commercializing the next generation of clean,... ...information, visit What you’ll get to do Blykalla is growing its US engineering team to advance our lead-cooled small modular reactor...- Blykalla is seeking a Nuclear Quality Assurance Engineer to integrate quality into engineering for a first-of-a-kind reactor program. You will help translate requirements into design documents, review verifications, and ensure traceability across engineering outputs. Working...
- We are seeking to fill multiple nuclear thermal-hydraulics engineering roles leading and supporting the design of liquid metal cooling and passive decay heat removal systems for the subcritical core of an accelerator-driven Energy Amplifier. About Subcritical Systems Inc...Permanent employmentFull time
- ...liquid metal cooling and passive decay heat removal systems for a subcritical accelerator-driven energy amplifier. We seek engineers with strong nuclear thermo-hydraulic and CFD experience to lead or support design, simulation, prototyping and procurement efforts. Visa...
- Last Energy in Austin is seeking a Senior Nuclear Engineer to lead thermal-hydraulic and neutronics calculations, independently verify engineering analyses, and influence design decisions for modular microreactor systems engineered for speed, safety, and scalability. You...
- Aalo Atomics is hiring a Build Reliability Engineer to own build-induced risk across design, fabrication, and testing of reactor hardware. You will collaborate with design, manufacturing, quality, test, production, and supply chain to ensure reliable, inspectable hardware...
- Aalo Atomics is seeking a Senior Nuclear Test Engineer to develop test methods, write procedures, and execute testing across prototype to qualification stages. You will transform engineering requirements into measurable acceptance criteria and generate traceable evidence...
- At SSR, we’re more than a leading engineering design, consulting, and planning firm—we’re a team of owners committed to solving complex projects and delivering innovative solutions for facility and infrastructure challenges. With locations across the U.S. and expertise...Full timeTemporary workFor contractorsWork at officeLocal areaImmediate startFlexible hours
$67.54k - $141.49k
Job ID: 515347Location: Austin, Texas, United States of AmericaSalary: $67,544 - $141,494Company: Siemens Performance Engineer - HVAC/Energy Services Job ID 515347 Posted since 13-Oct-2026 Organization Smart Infrastructure Field of work Engineering...Permanent employmentFull timeWork at officeLocal areaImmediate startRemote workRelocation- A cutting-edge nuclear start-up in Austin, TX is seeking a Thermal Hydraulic Engineer to lead the design and validation of thermal-fluid systems. This hands-on role requires experience in thermofluids, proficiency in CFD tools, and a practical mindset. You'll collaborate...
- Aalo Atomics in Austin, TX is seeking a Senior Manufacturing Engineer to lead development and optimization of manufacturing processes for modular nuclear reactors, working on the factory floor with technicians and engineers to scale from first-of-a-kind builds to high-...
- ...Atomics, based in Austin, TX, seeks a Senior Quality Assurance Engineer to lead the NQA‑1 QA program, oversee inspections, supplier quality... ...manufacturing operations. Ideal candidates bring extensive nuclear QA experience, with deep knowledge of DOE/NRC requirements, ASME...
- Blykalla in Austin, TX is seeking a Nuclear Quality Assurance Engineer focused on design quality to help bring a first-of-a-kind reactor program to life through controlled, traceable engineering work. You will translate requirements into design documents, review verification...
- Aalo Atomics in Austin, TX seeks a Chemical Process Engineer to design and optimize steam generation and feedwater systems for a nuclear plant. You will improve efficiency, reliability, and safety while coordinating with operations, maintenance, EHS, and projects. The...
- ...Services, we offer broad expertise across Cybersecurity, Digital Core, Finance, Industry and Enterprise, Song, Supply Chain and Engineering, and Talent, with advanced capabilities in AI and Data, Industry and Process, and Technology. We serve approximately 9,000 clients...Work experience placementLive inWork at officeLocal area
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