Lead Nuclear Engineer

We need to output HTML fragment with sections: About the role, Responsibilities, Qualifications (maybe combine Required Qualifications & Skills and Preferred Qualifications & Skills?), Benefits, Pay (Compensation Range), maybe Schedule? Not present. Also include About Radiant? The instruction: "Do NOT repeat the job title as a heading (the page already shows it) and do NOT put Job ID / requisition numbers as headings — fold minor metadata into a short

or drop it." The posting includes "About Radiant" and "About The Role". We should include a section for About the role? The heading "About The Role" is present; we can use

About the role

and include the paragraph(s) describing role. Also we need sections for Responsibilities, Qualifications (maybe combine Required and Preferred), Benefits, Pay. Also maybe "Additional Requirements" could be part of Qualifications or separate? Probably include under Qualifications. We must not include boilerplate like EEO, equal opportunity, scam-warning, application instructions, contact email, etc. Also remove "Total Compensation And Benefits" paragraph that is fluff; but we need to keep substantive info: compensation range. Also benefits list. We must preserve all substantive information; do not invent or summarize away detail. So we need to include all details from About Radiant? The instruction: "Prefer a few substantive sections over many thin ones." But we must preserve ALL substantive information; we cannot drop details like about Radiant description. However we could include that in a section like "About the company" maybe not required heading but we could embed in a

under About the role? The instruction says include a section ONLY when the posting has real, specific content for it — never emit a heading followed by filler/placeholder text. So we need to decide which headings to include. Likely we include: About the role, Responsibilities, Qualifications, Benefits, Pay. Also maybe "About Radiant" could be part of About the role? But it's separate. Could we include a section "About the company"? Not listed in allowed headings list but we could still use

About the company

if content exists. The instruction says use

for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). It gives examples but not exclusive. Probably we should stick to those examples. So we can treat "About Radiant" as part of "About the role" or maybe we can omit it? But we must preserve ALL substantive information. If we omit About Radiant, we lose info. So we need to include it somewhere. Could we include it as a

before the first heading? The instruction: "Do NOT repeat the job title as a heading (the page already shows it) and do NOT put Job ID / requisition numbers as headings — fold minor metadata into a short

or drop it." So we can put a short

for metadata like company description. That seems acceptable. So we can have a leading

with About Radiant description. Then headings. Thus output:

About Radiant: Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1‑megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028.

Then

About the role

with paragraph(s) from "About The Role". That includes description of Lead Nuclear Engineer role. Then

Responsibilities

with

• each bullet from Responsibilities & Duties. Then

  Qualifications

  maybe combine Required and Preferred. Could split into Required Qualifications and Preferred Qualifications but instruction says prefer few substantive sections. Could combine into one Qualifications section with subheadings? But we cannot use

  maybe? Not prohibited but we could just list both required and preferred as separate

  with headings inside? Might be okay to have two
  with preceding

  indicating required vs preferred. But to keep simple, we can have

  Required Qualifications

  and

  Preferred Qualifications

  as separate sections. That's still few sections. But we must not create sections with filler text. Both have content. Then

  Benefits

  with
  • each benefit. Then

    Pay

    with

    Compensation Range: $161,288 - $223,650

    . We should not include schedule. We must remove boilerplate: EEO, equal opportunity, contact email, etc. Also remove "Total Compensation And Benefits" paragraph that is fluff; but we already captured compensation range. Also remove "Additional Requirements" maybe incorporate into Qualifications? Could add a

    Additional Requirements

    but we can fold into Qualifications. Let's extract details. About Radiant paragraph: we have. About The Role paragraph: "Radiant is seeking a Lead Nuclear Engineer to provide technical and people leadership within the nuclear design and analysis organization supporting Kaleidos. You will lead an interdisciplinary team working across core physics, neutron and radiation transport, shielding, activation and dose, thermal-hydraulics, safety analysis, instrumentation and controls, reactor operations, and regulatory evaluations. This role combines hands-on technical leadership with team and project ownership. You will guide nuclear engineering work from requirements definition and early design trades through analysis, verification and validation, testing, and regulatory documentation. You will also own team priorities, schedules, resource planning, hiring, and execution against key program milestones. The ideal candidate brings deep technical judgment, strong engineering fundamentals, and the ability to translate complex nuclear analysis into practical design decisions. You should be comfortable leading in a fast-moving, interdisciplinary environment while developing engineers and driving difficult technical problems through closure." We'll put that in

    . Responsibilities bullets: list each line after "Responsibilities & Duties". Let's capture: - Lead an interdisciplinary team working across reactor physics, core performance, shielding, dose and activation, thermal-hydraulics, safety analysis, I&C, and reactor operations. - Hire, manage, and develop a high-performing team of nuclear engineers through clear expectations, technical guidance, actionable feedback, and regular coaching. - Establish team priorities, project plans, schedules, resource needs, budgets, and clear ownership for nuclear engineering deliverables. - Own nuclear engineering projects from requirements capture and design iteration through model development, analysis, technical review, and final documentation. - Guide analyses of criticality, reactivity control, shutdown margin, power distribution, depletion, temperature feedback, radiation transport, dose, activation, and shielding performance. - Translate analytical results into actionable requirements and design decisions affecting the core, shielding, control systems, instrumentation, fluid systems, structures, and surrounding hardware. - Establish rigorous practices for model verification and validation, peer review, configuration control, uncertainty evaluation, and technical documentation. - Ensure analytical assumptions, limitations, uncertainties, margins, and conclusions are clearly documented and technically defensible. - Collaborate with reactor systems, thermal, mechanical, electrical, test, operations, safety, and regulatory teams to resolve multidisciplinary design challenges. - Work with the regulatory organization to translate applicable nuclear standards and requirements into analysis plans, design criteria, calculation packages, and verification activities. - Support reactor testing and startup by defining analysis needs, instrumentation requirements, acceptance criteria, and methods for comparing predicted and measured performance. - Identify technical and programmatic risks, develop practical mitigation plans, and drive complex nuclear engineering problems through closure. - Communicate technical status, risks, decisions, and recommendations clearly to engineering teams and company leadership. Now Required Qualifications & Skills: - Bachelor’s degree in nuclear engineering or a related technical discipline from an accredited institution. - 5+ years of relevant nuclear engineering experience across reactor design, analysis, testing, licensing, safety, or operations. - 1+ year of experience managing direct reports. - Demonstrated experience leading complex nuclear engineering projects involving multiple technical disciplines and stakeholders. - Deep knowledge of neutron transport theory, Monte Carlo simulation methods, nuclear data, and statistical convergence. - Professional experience developing and applying MCNP, OpenMC, or comparable neutron and radiation transport models. - Strong understanding of reactor physics concepts, including criticality, reactivity coefficients, depletion, power distribution, shutdown margin, neutron and gamma transport, and uncertainty analysis. - Experience translating analytical results into reactor design decisions, technical requirements, safety conclusions, or regulatory documentation. - Familiarity with model verification and validation, configuration control, peer review, and nuclear software quality practices. - Strong written and verbal communication skills, including the ability to explain complex analyses, assumptions, uncertainties, and technical conclusions to multidisciplinary teams. Preferred Qualifications & Skills: - Master’s degree or Ph.D. in nuclear engineering or a related technical discipline. - Subject-matter expertise in safety analysis, shielding, radiation dose and activation, instrumentation and controls, reactor operations, thermal-hydraulics, or radioactive-material transportation. - Experience with high-temperature gas-cooled reactors, microreactors, advanced reactors, or first-of-a-kind nuclear systems. - Experience with SCALE, Serpent, Shift, Griffin, MOOSE-based applications, or similar nuclear analysis tools. - Proficiency with Python or another language used for simulation automation, model generation, and analysis post-processing. - Experience with coupled neutronics and thermal-hydraulics or other multiphysics analyses. - Familiarity with DOE authorization processes, NRC licensing, nuclear industry codes and standards, or regulatory safety analysis. - Experience supporting reactor testing, commissioning, startup, or operational readiness. - Experience building or expanding a nuclear engineering team or analytical capability. Additional Requirements: - Willing to support extended hours when needed to meet critical program milestones. - Must work 100% onsite at Radiant’s El Segundo headquarters. We could incorporate Additional Requirements into Qualifications section as a separate

    Additional Requirements

    or include under Qualifications. Since it's not exactly qualification but requirement, we could make a separate section. But to keep few sections, maybe add under Qualifications as a

    after lists. However instruction: prefer few substantive sections over many thin ones. Adding another section may be okay if it's substantive. It's two lines. Could be included as a

    under Qualifications. Benefits And Perks list: - Stock: Substantial incentive stock plan for all full-time employees. - Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. - One Medical: Sponsored memberships for employees and their dependents. - Vision: 100% top tier plan coverage + 50% for dependents. - Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. - Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. - 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. - Daily catered lunch. - Free snacks and drinks. - Flexible PTO policy. - Remote workday allocation. - Company and team-bonding events, happy hours and in-person camaraderie. - Beautiful El Segundo headquarters close to the Pacific Ocean. We need to output as

    • each. Pay: Compensation Range: $161,288 - $223,650. Now produce HTML fragment. We must not include or <