TRX International

Nuclear estimatorSalary, qualifications, career path and hiring demand, 2026 edition

A nuclear estimator transforms an incomplete future project scope into a defensible project cost position. The job is to quantify scope, build labour, material, equipment and subcontract rates, link cost to schedule and execution method, apply escalation and contingency, and document assumptions. In nuclear power plants, estimates span new build, outages, decommissioning, waste, fuel and advanced reactors, where quality requirements, access constraints and long project durations materially change ordinary construction benchmarks.

EstimatingFirst principlesBasis of Estimate · Risk · Nuclear projectsPre-construction
In short

Nuclear estimator pay rises above the broad US cost-estimator occupation once the role owns complex nuclear scope. Westinghouse currently publishes $58,400–$73,000 for an Estimating Specialist and $116,800–$146,000 for an APX Estimating Lead. In the UK, live Senior Estimator work supporting Sellafield infrastructure is around £65,000–£85,000, while specialist Hinkley Point C estimating is advertised up to £500/day.

There is no nuclear estimating licence. The real gate is whether you can produce an estimate that survives challenge: traceable quantities, credible productivity, market-tested rates, schedule alignment, explicit assumptions, risk and contingency logic, and a clear Basis of Estimate. BPSS / SC / DV or US site / federal access may gate individual programmes.

Current Westinghouse APX Estimating Lead base range, 2026
$0
Current Senior Estimator range on Sellafield major nuclear infrastructure, 2026
£0
Current Hinkley Point C M&E Estimator contract anchor, inside IR35, 2026
£0/day
BLS May 2025 median for Cost Estimators across all US industries; nuclear specialist roles can sit materially above it
$0
Role snapshot

The role at a glance

Everything an employer will ask about in the first fifteen minutes of a screening call.

Nuclear Estimator Vacancies
Also called
cost estimator · project estimator · estimating engineer · senior estimator · lead estimator · estimating specialist · cost estimating analyst · proposal estimator · nuclear estimator
Entry qualification
Engineering, Construction Management, Quantity Surveying, Commercial Management, Project Controls or related degree / HNC/HND route. Experienced construction and trade professionals can also enter through practical scope, productivity knowledge, and minimal supervision capabilities.
Typical entry pay
$60,000–$78,000 US for estimating specialist / early project-estimator roles · £35,000–£48,000 UK for junior / assistant estimators moving into major projects
Senior pay
$116,000–$150,000 US for lead estimating and up to about $185,000 for manager / principal-lead scope in the TRX model · £80,000–£125,000 UK from lead estimator through estimating manager / head of function
Contract day rates
£500/day is a current Hinkley Point C M&E Estimator anchor; specialist senior estimators on nuclear / major infrastructure bids can reach roughly £500–£750/day. US contract rates vary by location, client, clearance, and federal access.
Professional gate
No statutory licence. AACE CEP / CCP, ICEAA estimating credentials or chartered cost / construction backgrounds can strengthen credibility, but a clean Basis of Estimate and demonstrated ownership of complex estimates matter more.
Security
UK BPSS is common and SC / DV depends on programme sensitivity. US commercial nuclear may require site access; DOE / NNSA estimating work can require citizenship and clearance. Existing clearance helps but does not replace estimating depth.
Where the work sits
Pre-construction, bids and proposals, owner project controls, EPC / Tier-1 delivery teams, nuclear vendors, decommissioning alliances and capital-programme offices. Daily duties include engineering, planning, procurement, commercial, construction and risk.
Travel
Usually low to moderate, but serious estimates require site walkdowns, bidder meetings and supplier engagement. Brownfield and decommissioning estimates become unreliable when produced entirely from drawings and historic databases.
TRX segments
Large new build · New technology development · Operating fleet · Fuel handling & fuel cycle · Decommissioning & dismantling · Radioactive waste management
What the job is

Six versions of the same job title

"Nuclear estimator" changes with estimate maturity and delivery model. The common thread is turning scope, execution method, schedule, market data and uncertainty into a cost position that can survive review. Bar shows relative hiring relevance across TRX's 2026 nuclear desk activity.

New-build civils / infrastructure estimating

Build first-principles estimates for earthworks, concrete, marine, buildings, utilities and temporary works, including labour productivity, plant, logistics and subcontract strategy.

ROLESNuclear Estimator · Civil Estimator · Senior Estimator

MEICA / installation estimating

Price mechanical, electrical, HVAC, piping, instrumentation and installation scope where quantities, workface constraints, quality records and commissioning interfaces drive hours.

ROLESM&E Estimator · MEICA Estimator · Mechanical Estimator

Decommissioning / waste estimating

Estimate retrievals, dismantling, remediation, waste processing and brownfield modifications where unknown condition, radiological controls and access dominate uncertainty.

ROLESDecommissioning Estimator · Cost Estimator · Project Estimator

Owner-side / independent estimate assurance

Build or challenge estimates for business cases, sanction, change and contractor proposals, testing scope, quantities, rates, escalation and contingency.

ROLESOwner's Estimator · Independent Cost Estimator · Estimating Assurance Lead

Nuclear equipment / vendor and proposal estimating

Develop cost and price estimates for engineered equipment, services, outages and proposals, combining engineering hours, manufacturing, procurement and commercial assumptions.

ROLESProposal Estimator · Estimating Specialist · Cost & Price Estimator

SMR / advanced-reactor FOAK estimating

Estimate first-of-a-kind and fleet deployment where design maturity, factory production, learning curves and immature supply chains make analogy dangerous.

ROLESAdvanced Nuclear Estimator · SMR Cost Estimator · Estimating Lead
A working day

What the week actually looks like

A composite day for an established estimator developing a sanction / tender estimate for a nuclear infrastructure or plant package, working with engineering, planning, procurement, construction and risk. Review deadlines create the rhythm more than normal office hours.

Estimating office · typical TuesdayOffice and site-based working
08:00
Estimate control and assumptions reviewCheck the estimate plan, maturity, open assumptions, exclusions and late engineering changes. Confirm which scope is ready to price and which still needs allowances.
09:15
Quantity and scope build-upReview drawings, specifications, equipment lists, WBS and quantities. Reconcile missing interfaces and avoid double count between direct work, subcontract packages, temporary works and owner-supplied items.
10:45
Productivity and execution challengeTest crew build-ups, access, sequencing, nuclear quality activities, shifts, logistics and productivity with construction and engineering. Standard civil rates rarely survive unchanged inside controlled nuclear work.
12:15
Supply-chain and market pricingCompare budget enquiries, normalize supplier quotes, challenge exclusions and decide what should be market-tested versus built from internal rates. Record validity, currency, freight and commercial basis.
13:45
Schedule, escalation and risk integrationAlign time-phased cost with P6 milestones, procurement lead times and resource curves. Apply escalation consistently, then separate allowances from risk-based contingency.
15:15
Estimate build and reconciliationUpdate the model, benchmark unit rates and compare against previous projects. Investigate why this estimate differs before writing the explanation; unexplained variance is a review issue.
16:45
Basis of Estimate and governance packCapture estimate class, scope basis, methodology, assumptions, exclusions, risks, market evidence and reconciliation so reviewers can trace each major number to evidence.
Estimate maturity is the job. A conceptual estimate should not be presented with detailed-design confidence, and a detailed estimate should not hide behind broad allowances. When governance asks for one number, give one number with an explicit basis, uncertainty and assumptions that would move it. This role is critical in maintaining the nuclear quality assurance standards and ensuring compliance with nuclear safety culture during peak construction phases.
Pay, 2026

What nuclear estimators are paid in 2026

Bars show the 25th to 90th percentile of base salary. The vertical marker is the median. Switch currency to move between the US and UK markets — they behave differently, and the shapes tell you why.

Base salary by level · excludes bonus, site and living-away allowances
$0$50k$100k$150k$200k
Estimating specialist0–3 yrs
$69k
Nuclear / project estimator3–6 yrs
$92k
Senior / principal estimator5–9 yrs
$116k
Estimating lead8–15 yrs
$133k
Estimating manager / principal lead10+ yrs
$160k
25th–90th percentileMedianTRX market analysis, Q3 2026

How nuclear estimating compares to adjacent roles

US figures. The Cost Estimator and Project Management Specialist rows use BLS May 2025 data; nuclear-specialist rows are TRX market models because federal statistics do not isolate nuclear estimating.

OccupationMedianP10P90What moves the number
Nuclear estimator (TRX model)$116,000$60,000$185,000Estimate scale, first-principles depth, nuclear construction knowledge, BOE ownership, assurance and clearance
Cost engineer, nuclear (TRX model)$108,000$75,000$190,000Baseline / EAC ownership, change, cost systems, project scale, site experience and controls leadership
Cost estimators (all industries)$78,740$48,530$130,820Industry, estimate complexity, heavy-civil / building sector, responsibility and location
Project management specialists (all industries)$102,320$61,580$167,970Industry, project complexity, budget / schedule responsibility, location and seniority

Sources include US BLS May 2025 occupational wage data and current 2026 nuclear / major-project vacancies. Live job ranges are anchors, not a claim that every nuclear employer uses the same grade structure.

Premium 01

First-principles nuclear construction estimating

Estimators who can build labour, plant and productivity from execution logic command more than candidates who mainly apply historic unit rates or supplier totals.

Premium 02

FOAK, risk and estimate-assurance depth

Advanced reactors, first-of-a-kind facilities and sanction estimates reward people who can quantify uncertainty, challenge optimism and defend contingency in senior governance.

Premium 03

Large bid / Basis of Estimate ownership

Leading the integrated estimate, reconciliation, pricing narrative and review process for major proposals or capital approvals attracts a premium over producing isolated discipline inputs.

Routes in

Three ways in, and one of them is open to everyone

Nuclear estimators enter from construction, engineering, quantity surveying, project controls and proposal teams. Progression moves from discipline-level build-ups to integrated estimates defended at governance or client review.

Route A

Construction / engineering graduate into estimating

The standard technical route.

Year 0–2Assistant estimator / project supportLearn take-offs, rate build-ups, WBS, estimate databases, supplier enquiries and Basis of Estimate discipline on live work, ensuring compliance with nuclear safety and quality practices.
Year 2–5EstimatorOwn defined civils, M&E or equipment scopes; integrate engineering quantities, schedule logic and procurement evidence; present assumptions to reviewers with a working knowledge of nuclear regulations and site-specific work environment.
Year 5–8Senior estimatorLead multi-discipline packages, normalize bids, set estimating strategy and challenge constructability, productivity, escalation and contingency, demonstrating problem solving and detail oriented expertise.
Year 8–12Lead estimatorIntegrate major estimates, coordinate contributors, run peer / independent reviews and own the final Basis of Estimate through governance, fostering mutual respect among employees and stakeholders.
Year 10+Estimating manager / principalSet methodology, benchmark data, assurance, team capability and estimating governance across programmes or product lines, participating actively in the hiring process and supporting reasonable accommodation requests.
Route B

Trade / construction delivery to estimating

Strong for realistic productivity and work environment insight.

Year 0–3Site / trade / engineering deliveryBuild direct knowledge of labour, plant, materials, sequencing, access and the gap between drawing quantities and executable work, with regard to safety and employment standards.
Year 3–5Assistant / discipline estimatorTranslate field knowledge into take-offs, crew build-ups and subcontract comparisons while learning formal estimate structure, equal opportunity employer principles, and respecting gender identity and sexual orientation diversity.
Year 5–8Estimator / senior estimatorOwn complex scopes and become trusted on productivity, temporary works, logistics and constructability assumptions, ensuring compliance with renewable energy and power generation industry practices.
Year 8+Lead / pre-construction estimatingCombine field credibility with estimating systems, risk and governance to lead major nuclear bids or sanction estimates, emphasizing protected veteran status and genetic information confidentiality.
Route C

Quantity surveying / cost engineering / project controls transfer

Common on major programmes with a focus on employment and education.

Step 1Build cost discipline elsewhereWork in QS, cost engineering or controls with WBS, quantities, rates, change, forecast and supplier data on major projects, demonstrating expertise and problem solving skills.
Step 2Move earlier in the lifecycleTake responsibility for conceptual / definitive estimates, option comparisons, procurement inputs and reconciliation rather than only tracking committed cost, with a working knowledge of medical and safety regulations.
Step 3Add estimating methodDevelop first-principles build-ups, Basis of Estimate writing, classification, escalation and risk / contingency logic, ideally supported by AACE or ICEAA methods, and participate in research to improve estimating practices.
Step 4Enter nuclear on a bounded scopeUse transferable commercial and controls skill while learning nuclear productivity, quality requirements, site access and governance, respecting national origin and genetic information protections.
Step 5Progress to integrated estimate leadershipMulti-discipline and owner / contractor experience create the strongest route into estimating assurance and management, fostering mutual respect and a positive work environment.
Before you apply

Are you actually ready to compete for a nuclear estimator role?

An estimator CV needs more than "prepared estimates." Show estimate value, maturity or class, discipline scope, software, quantity source, pricing method, supplier involvement, contingency approach and review outcome. The shortlist wants evidence that your numbers supported a bid, sanction, business case or contract decision.

Free resume scoring on avua, TRX's job search and application platform. Your score is yours — it is not shared with employers.
Example scorecardIllustrative
68out of 100

Strong CVs name estimate size, scope, method, quantities, rates, risk and governance outcome. Weak CVs list software and "cost estimating" without showing what decision the estimate supported. The gap is the part you can fix.

A typical major-project estimator CV
68
Average of shortlisted candidates
79
Top decile for nuclear estimator roles
91

Illustrative figures based on TRX shortlisting patterns across site engineering vacancies. Your own score is generated by avua from your CV and the role you are targeting.

Gates

The credentials that actually let you work on site

Nuclear estimating is gated by demonstrable estimate quality and programme access, not by one mandatory licence. Qualifications help most when they reinforce a track record of traceable, review-ready estimates.

CredentialJurisdictionRequired forTimeNotes
Engineering / Construction / QS degree, HNC/HND or apprenticeshipUK / US / GlobalMost professional estimating routes2–5 yrsExact subject varies; experienced field and trade routes can substitute where estimate ownership is strong.
AACE CEP / CCP or equivalentGlobalProfessional cost / estimating credibilityExp.-basedUseful for methodology, estimate classification, risk and senior assurance; not a nuclear licence.
ICEAA / formal cost-estimating methodologyUS / GlobalGovernment / complex acquisition estimatingExp.-basedParticularly relevant to federal, defence and analytical estimating environments.
First-principles / estimate-class competenceGlobalSanction, bid and independent estimatesExp.-basedEmployers expect traceable quantities, rates, assumptions, reconciliation and an auditable Basis of Estimate.
Estimating software + advanced ExcelGlobalDay-to-day estimate productionWeeks–monthsCostX, Candy, CostOS, Cleopatra or employer tools vary; method matters more than brand.
Primavera P6 / schedule integrationGlobalTime-phased cost and escalationExp.-basedEstimator need not be the planner, but must understand logic, milestones, resource timing and estimate-schedule reconciliation.
BPSS / SC / DVUKSite / sensitive programmesDays–monthsBPSS common; SC / DV depend on programme sensitivity and information handled.
Commercial nuclear access / DOE or NNSA clearanceUSSite / federal nuclear programmesRole-specificCommercial access differs from federal clearance; citizenship requirements can apply to some DOE / NNSA work.

Requirements vary by employer and jurisdiction. AACE / ICEAA credentials are professional signals rather than nuclear licences; security and site access depend on the programme and information handled.

Skills screened

What appears on a 2026 nuclear estimating shortlist

Recruiters screen for whether you can turn incomplete scope into a traceable estimate without confusing precision with confidence.

Hard filters

Named on the specification

  • First-principles estimating — Labour, plant, materials, equipment, subcontract and indirect build-ups derived from execution method rather than unsupported lump sums
  • Quantity take-off and scope definition — Drawings, specifications, equipment lists, WBS / CBS mapping, interfaces, exclusions and reconciliation of missing or duplicated scope
  • Basis of Estimate and estimate maturity — Estimate class, methodology, assumptions, exclusions, source data, reconciliation and review-ready audit trail
  • Productivity and rate build-up — Crew composition, work hours, nuclear quality burden, access, shifts, logistics, location factors, supplier quotes and normalization
  • Risk, contingency and escalation — Allowances, quantitative risk inputs, uncertainty, inflation / escalation, currency and time-phasing linked to schedule
  • Estimating tools and data — Advanced Excel plus CostX / Candy / CostOS / Cleopatra or equivalent, estimating databases and enough Primavera P6 knowledge to connect cost to schedule
Differentiators

What decides between two shortlisted candidates

  • Nuclear new-build / decommissioning estimate ownership — Direct responsibility for major civils, MEICA, brownfield or plant packages rather than generic infrastructure-only exposure
  • FOAK / SMR / advanced-reactor estimating — Handling immature design, learning curves, fleet assumptions and uncertain supply chains without presenting false certainty
  • Independent estimate and assurance capability — Challenging contractor or project estimates, reconciling differences and presenting a defensible position to governance
  • Market intelligence and supplier engagement — Current labour, material, equipment and subcontract evidence across constrained nuclear supply chains
  • Bid / commercial pricing integration — Translating technical cost into proposal, pricing, risk and negotiation inputs while keeping cost basis and commercial strategy distinct
  • AACE / ICEAA depth plus nuclear access readiness — Recognised estimating method, existing BPSS / SC / DV or US federal access can reduce delivery risk between otherwise similar candidates
One thing candidates consistently underweight. The strongest estimator knows when not to estimate precisely. Interviewers often give an immature scope and ask for a number. They are testing whether you ask what design maturity, quantities, execution basis, schedule and risk evidence exist before producing a confident spreadsheet. This process reflects the nuclear safety culture and the critical consideration given to maintenance, wages, and quality assurance on nuclear projects, where qualified employees must participate fully in the documentation, inspection methods, and resources management to advance the project efficiently.
Where the jobs are

The 2026 demand map

Nuclear estimator demand follows investment decisions, tender pipelines and capital-programme maturity. The largest concentrations sit where projects are moving from concept into procurement, construction or repeated work-package delivery.

ProgrammeLocationPhase in 2026Engineering demand
Hinkley Point CSomerset, UKConstruction / MEH / commissioning preparationHigh; continuing M&E, civils, temporary works and site-service estimates, with a live M&E Estimator contract benchmark in 2026.
Sizewell C / Civil Works AllianceSuffolk / London, UKConstruction ramp-up / procurementVery high; live Estimator and Senior Estimator vacancies support first-principles civils, procurement and price development.
Sellafield / Infrastructure Delivery PartnershipCumbria, UKLong-term infrastructure / decommissioning deliveryVery high; recurring sanction, tender and change estimates across civils, utilities, decommissioning and asset-care work.
Wylfa Rolls-Royce SMR programmeAnglesey, UKSite-specific design and delivery mobilisationHigh and rising; multi-billion-pound first-fleet scope, supplier packages, modular delivery and owner assurance require cost modelling.
Kemmerer NatriumWyoming, USConstruction permit issued / project deliveryHigh; FOAK advanced-reactor estimating, owner assurance, procurement and funding decisions need transparent cost and contingency.
Palisades SMR-300Michigan, USPhased construction-permit / early-work licensingRising; site, construction, modular supply-chain and early-work estimates become more important as scope matures.
Darlington BWRX-300Ontario, CanadaNuclear constructionHigh; FOAK construction, supplier packages, civils and modular installation create strong estimating and benchmark demand.
US DOE / NNSA capital programmesUnited StatesRecapitalisation / nuclear infrastructureVery high; independent estimates, EVMS integration, escalation, risk and federal governance are recurring requirements.
US operating nuclear fleetsUnited StatesCapital modifications / outages / life extensionSteady; outage scopes, modifications, plant services and vendor proposals require repeatable labour and material estimating.
Nuclear fuel / component manufacturing expansionUS / UK / EuropeCapacity expansion / supply-chain investmentSteady; equipment, factory, clean-room, process and supplier estimates support new fuel and component capacity.

Programme phases move. The table reflects public status verified in September 2026; confirm the current package, employer, clearance, contract form and estimate maturity before making a relocation decision.

Read the market this way

Estimating is strongest where procurement is accelerating

Sizewell C is actively recruiting Estimator and Senior Estimator roles, Sellafield's long-term partnerships create recurring tender and sanction work, and Wylfa SMR has moved into contracted delivery activity. In the US, advanced-reactor and DOE capital programmes need estimates that can survive funding and governance challenge.

The scarcity

People who connect engineering to executable cost

Plenty of candidates can maintain a workbook; fewer can challenge quantities, construction sequence, nuclear productivity, supplier exclusions, escalation and risk, then write a Basis of Estimate another reviewer can reproduce.

Where it leads

Adjacent and onward roles

Estimating connects upstream design and procurement to project controls, commercial and delivery. These are the closest sibling and progression moves.

Senior / Lead EstimatorLarger integrated estimates, contributor coordination, peer review and direct ownership of the Basis of Estimate through governance
Cost Engineer (Nuclear)Moves from predicting future cost into baseline, forecast, EAC, variance, change and execution-phase cost management
Cost ControllerFocuses more tightly on actuals, commitments, accruals, forecast updates, variance and monthly cost-system discipline
Quantity Surveyor (Nuclear)Commercial route centred on procurement, payment, contractual change, entitlement and final account rather than estimate formation
Project Controls ManagerBroadens into integrated cost, schedule, risk, change and performance leadership across a project or programme
Commercial Manager (Nuclear)Progression toward pricing strategy, contracting, delegated authority, negotiation and commercial leadership
Questions

Questions nuclear-estimating candidates genuinely ask recruiters

How much does a nuclear estimator earn in 2026?

TRX models established US nuclear estimators at roughly $78,000–$105,000, senior estimators at $100,000–$132,000 and leads at $116,000–$150,000. Westinghouse Electric Company currently publishes $116,800–$146,000 for an APX Estimating Lead. In the UK, Senior Estimator work on Sellafield nuclear facilities infrastructure is around £65,000–£85,000.

This is an early to mid-career delivery role in nuclear projects, which is why the range sits toward the lower end of this series, though site and living-away allowances add meaningfully on major programmes. Candidates who spend time gaining nuclear-specific labor experience and demonstrate strong evaluation skills tend to be more competitive in this field. Additionally, professionals based in regions such as Glen Allen have access to growing opportunities in the nuclear energy sector.

Do you need a bachelor's degree to become a nuclear estimator?

Not always. Engineering, nuclear engineering, construction management, quantity surveying and project-controls degrees are common, but experienced construction, trade and commercial professionals also enter. Employers care more about whether you can build quantities, rates, productivity and a defensible Basis of Estimate.

Internal inspection sign-off authority is granted once you have demonstrated competence in nuclear quality assurance, regulatory compliance, and site evaluation.

What is the difference between a Nuclear Estimator and a Cost Engineer?

The estimator works mainly before or at decision points: what should this scope cost, given current definition and uncertainty? A Cost Engineer takes the approved baseline into operations and manages forecast, EAC, variance, change and cost performance.

The nuclear-specific part is the quality assurance and documentation regime, which is considerably heavier than general construction, and the safety culture around stopping work to maintain strict compliance with nuclear quality assurance standards and nuclear regulatory requirements.

Which estimating software matters most in nuclear?

Advanced Excel is near-universal, while CostX, Candy, CostOS, Cleopatra or company-specific systems vary by employer. Primavera P6 matters because cost must align to schedule. Software does not replace the ability to communicate effectively quantities, rates and assumptions.

The honest caveat: this role is entirely site-based, involves early starts and relocation, and salary at this level is generally below design engineering roles. Its true value lies in being the standard pathway toward nuclear construction management, a field facing a critical shortage of qualified site engineers and nuclear construction professionals. Those who show expertise in nuclear quality assurance, safety culture, and complex site evaluation are highly sought after in the competitive nuclear new build vacancy sector.

Is nuclear estimating a good career in 2026?

Yes, particularly around new build, decommissioning and advanced reactors. Sizewell C has live Estimator and Senior Estimator job postings, Sellafield continues long-term infrastructure procurement, and Wylfa SMR has moved into contracted delivery. The nuclear premium comes from project complexity, nuclear industry scarcity and continuous improvement.

Put simply, one produces the design and the other realises it on the ground. Both are civil engineering, and engineers do move between them, but the site role is construction-based and delivery-focused while the civil engineer role is design-based and analysis-focused.

What skills are most in demand for nuclear estimators in 2026?

First-principles estimating, quantity take-off, nuclear construction productivity, Basis of Estimate writing, supplier market testing, risk / contingency and schedule integration. For senior roles, the differentiator is independent judgement under uncertainty, thorough understanding of nuclear design, and strong knowledge of applicable laws.

Setting out, drawing interpretation and quality inspection are the near-universal hard filters.

Nuclear only

We only recruit in nuclear. That is the whole point.

TRX works across large new build, fusion, new technology development, operating fleet, decommissioning, radioactive waste management and nuclear medicine, in 14+ countries. Send us your CV and we will tell you whether your estimating background fits owner-side assurance, contractor bids, decommissioning, SMR / advanced-reactor work or the adjacent cost-engineering path.