TRX International

ASME code compliance engineerSalary, qualifications, career path and hiring demand, 2026 edition

An ASME code compliance engineer turns the Boiler and Pressure Vessel Code into an auditable engineering route for nuclear pressure retaining components. The work spans classification, certifying design specifications, materials, finite element stress analysis, fabrication, welding, NDE, testing, Authorized Nuclear Inspection and final certification records. The distinctive skill is not memorising Section III: it is knowing which edition, subsection and responsibility applies, then working closely with multidisciplinary engineering teams to keep design, quality, manufacturing and suppliers aligned until the component can be accepted without a late Code surprise.

ASME Section IIINCA / NB / NCD / NFCode of recordNQA-1Nuclear manufacturingHigh scarcity
In short

Established US ASME Section III compliance engineers model around $110,000–$150,000 base, with senior certifying-authority roles reaching roughly $180,000–$190,000. UK established engineers sit around £54,000–£75,000; current Rolls-Royce SMR senior engineers directly tied to Section III strategy and ASME manufacturing certification pay approximately £53,800–£78,750. There is no exact national wage series, so TRX uses broader engineering statistics plus live nuclear postings, reflecting the asme code compliance engineer salary range and current knowledge.

There is no individual “ASME Code Compliance Engineer licence”. The real gate is demonstrated command of the applicable Section III code of record, NCA responsibilities, component classification, design solutions, design/manufacturing evidence and nuclear QA in accordance with asme section iii requirements. PE or CEng strengthens senior authority; some US certifying-engineer positions require an active professional engineer license. ASME N-type certificates belong to organisations, not individual engineers.

current US principal Section III certifying-authority salary anchor
$0–$190k
current Rolls-Royce SMR Senior Component Codes & Standards anchor
£0–£63k
latest published ASME BPVC edition in 2026
0
subject of the NRC's 2026 proposed 10 CFR 50.55a approval rule; “latest published” is not automatically the regulatory code of record
0edition
Role snapshot

The role at a glance

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

Jobs for ASME Code Compliance Engineers
Also called
ASME Section III engineer · codes & standards engineer · nuclear codes engineer · pressure systems compliance engineer · component code engineer · ASME certification engineer
Entry qualification
Mechanical, materials, nuclear or closely related engineering degree; most employers expect several years of pressure-boundary, structural-integrity, manufacturing or nuclear design experience before independent code ownership.
Typical entry pay
$70,000–$90,000 US graduate/junior mechanical-code role · £38,000–£50,000 UK early-career code/design engineer.
Senior pay
$145,000–$205,000 US principal/code-authority range · £75,000–£100,000 UK principal/lead compliance range, with programme leadership sometimes above this.
Contract day rates
£550–£750 established UK code engineer; £700–£950 lead/SME; approximately $85–$130/hr US specialist contract work.
Professional gate
Practical Section III competence and employer technical authority. PE can be mandatory for specific US certifying roles; CEng is valuable in the UK but is not an ASME requirement.
Security
UK BPSS is common on civil new technology and can rise to SC on sensitive programmes. US commercial work may require unescorted access; federal/defence work can add citizenship, export-control or clearance requirements.
Where the work sits
reactor vendors, nuclear component manufacturers, EPC/design organisations, ASME Certificate Holders, utilities, advanced-reactor developers, suppliers and specialist engineering consultancies.
Travel
Low to moderate in design-governance roles; materially higher when supporting supplier audits, Authorized Nuclear Inspector interfaces, joint reviews, manufacturing recovery or international certification.
TRX segments
Large new build · New technology development · Operating fleet · Nuclear manufacturing · Fuel handling & fuel cycle · Defence nuclear · Decommissioning & dismantling
What the job is

Six versions of the same job title

The title changes depending on whether the employer designs, certifies, buys, operates or adapts Code-classed equipment. Meter = relative 2026 TRX hiring relevance.

Section III component design compliance

Own the Code route for Class 1, 2 or 3 components, supports or core structures: edition, classification, Design Specification/Report, stress criteria, materials, examination and testing.

ROLESASME Section III engineer · component code engineer · mechanical code specialist · codes & standards engineer

ASME certification and manufacturing programme

Translate NCA duties into processes for an N, NPT, NA, NS or other applicable certification programme, including survey/joint-review readiness and certification records.

ROLESASME certification engineer · manufacturing ASME lead · nuclear code compliance engineer · N-stamp programme engineer

Supplier and procurement code compliance

Flow Code requirements into purchase specifications, review supplier evidence and resolve material, welding or NDE deviations before turnover.

ROLESsupplier code engineer · procurement engineer (ASME) · supplier quality/code specialist · component compliance engineer

UK pressure-systems and international code integration

Reconcile Section III with UK legislation, ONR expectations, safety classification and structural-integrity claims; Code compliance alone may not close the ALARP argument.

ROLESpressure systems compliance engineer · codes & standards engineer · structural integrity/code specialist · nuclear pressure compliance engineer

Operating-fleet repair, replacement and Section XI interface

Apply the original construction Code, approved later editions and Section XI repair/replacement rules to modifications and ageing plant.

ROLEScode engineer · Section III/XI engineer · plant mechanical code specialist · repair/replacement engineer

Advanced reactor and Code Case development

Apply Division 5, novel materials or emerging Code Cases where precedent is limited and regulator acceptance still needs to be demonstrated.

ROLESadvanced reactor codes engineer · Section III Division 5 specialist · code development engineer · nuclear standards SME
A working day

What the week actually looks like

A composite day for a senior ASME code compliance engineer supporting a reactor-vendor or nuclear-component programme, with office design work and regular supplier/manufacturing interfaces.

Vendor / manufacturing programme · typical dayReactor-vendor or nuclear-component programme
08:00
Code-of-record reviewCheck design changes, supplier questions and NCRs against the invoked edition, classification and regulatory conditions for various reactor structures.
09:00
Design compliance reviewReview a Design Specification, stress report, drawing or calculation for loads, service levels, material allowables and acceptance criteria related to reactor structures.
10:30
Cross-functional code interfaceResolve material, welding, NDE or quality issues that could change the Code route or require formal disposition; communicate openly with multidisciplinary teams.
12:00
Supplier / ANI meetingClose open items with the fabricator, quality team and Authorized Nuclear Inspector; agree the evidence needed at the hold point.
14:00
Code inquiry or deviation decisionCheck paragraphs, Code Cases, interpretations and regulatory conditions; document the permitted route and approvals still needed.
15:30
Certification recordsReview data reports, material certificates, weld/NDE records and traceability before final turnover.
17:00
Governance and handoverUpdate the compliance matrix, record positions and escalate issues that could stop manufacture, testing or certification. Participate in team evaluations and maintain commitment to quality standards.
The expensive problems arrive late. Code issues are cheapest before procurement and hardest after fabrication and testing. In manufacturing recovery or joint review, the job becomes forensic: prove what requirement applied, what was done and whether the item can be accepted, repaired, reworked or rejected.
Pay, 2026

What ASME code compliance engineers are paid in 2026

No official wage series isolates ASME nuclear code compliance engineers. These ladders are a TRX market model anchored to May 2025 BLS engineering data and current Westinghouse, Rolls-Royce SMR, Holtec and specialist Section III postings. Base excludes bonus, overtime, travel and security allowances.

Base salary by level · TRX market models
$0$51k$103k$154k$205k
Graduate mechanical / code engineer0–3 yrs
$80k
ASME code compliance engineer3–6 yrs
$105k
Senior ASME Section III engineer6–10 yrs
$132k
Principal / certifying engineer10–15 yrs
$160k
Lead code authority / ASME SME15+ yrs
$188k
Low–HighMedianTRX market analysis, Q3 2026

How ASME code compliance compares to adjacent roles

BLS does not separately code ASME compliance. The TRX range is therefore anchored to official nuclear/mechanical engineering data and checked against current Section III roles. Do not treat the $190,000 principal anchor as the normal salary for an engineer who only has general ASME familiarity.

OccupationMedianP10P90What moves the number
ASME code compliance engineer (nuclear) — TRX 2026 model$132,000$80,000$190,000Section III authority, certification responsibility, PE/certifying status, manufacturing recovery, advanced-reactor work
Nuclear engineers — BLS May 2025$133,970$92,960$196,290Broader nuclear occupation; research, design, operations and federal work all included
Mechanical engineers — BLS May 2025$104,110$73,990$164,340Broad mechanical-engineering anchor across all industries
Senior Section III piping engineer — current market anchor~$155,000 midpoint——10+ years, Class 1/2/3 design, NQA-1 environment and deep piping/code experience
Principal nuclear certifying engineer — current market anchor~$185,000 midpoint——Active PE, certifying authority and 15+ years of Section III piping/design responsibility

BLS does not separately code ASME compliance. The TRX range is therefore anchored to official nuclear/mechanical engineering data and checked against current Section III roles. Do not treat the $190,000 principal anchor as the normal salary for an engineer who only has general ASME familiarity.

Premium 01

Certifying / responsible-engineer authority

Employers pay more when the engineer can sign, certify or technically own Design Specifications, reports and Code positions rather than only review them.

Premium 02

ASME nuclear certification programme experience

Having taken an organisation or supplier through N/NPT/NA-style certification, survey preparation or joint review is much scarcer than classroom Code knowledge.

Premium 03

Advanced-reactor and multi-jurisdiction judgement

Division 5, Code Cases, export programmes and UK/US code-regulatory interfaces demand engineers who can distinguish “the Code allows it” from “the regulator/project accepts it”.

Routes in

Three routes in, and only one of them starts with an ASME degree

Most code specialists come through mechanical design, structural integrity, manufacturing or nuclear quality. Progress comes from owning complete components and defensible Code decisions.

Route A

Mechanical design to Section III authority

From mechanical/design engineer to code authority.

Year 0–3Mechanical/design engineerBuild pressure-boundary, drawings, specifications, materials and calculation fundamentals while demonstrating that you are a creative thinker committed to quality engineering.
Year 2–5Section III component workUse NB/NCD/NF or the project subsection under senior review; learn classification and design documentation with a degree credited by a recognized institution.
Year 5–8Senior code engineerReview supplier submittals, resolve Code questions and own Design Specification/Report interfaces, seeking continuous improvement and compliance.
Year 8–12Principal / responsible engineerOwn a component family or major pressure-system scope; PE can matter in US certifying roles, and you will be committed to mentoring employees.
Year 12+Code authoritySet interpretation, governance and escalation routes across design, manufacturing and quality, demonstrating leadership as a creative thinker.
Route B

Manufacturing / quality into ASME compliance

From manufacturing or quality engineering to ASME manufacturing lead.

Year 0–4Manufacturing or quality engineeringLearn material control, welding, NDE, special processes and NCRs while being committed to quality standards.
Year 3–6Nuclear QA / supplier qualityWork under NQA-1 or 10 CFR 50 Appendix B and learn Section III fabrication controls, seeking to enhance compliance.
Year 5–9ASME certification supportBuild quality-manual, survey, ANI and certification-package experience, applying your degree credited knowledge.
Year 8–12Compliance specialistOwn Code deviations, supplier recovery and cross-functional interpretation, committed to supporting employees.
Year 12+ASME manufacturing leadGuide certification strategy and supplier deployment with a creative thinker’s mindset.
Route C

UK / international pressure systems route

From pressure systems / structural integrity to principal codes authority.

Year 0–4Pressure systems / structural integrityEnter through nuclear mechanical, pressure-equipment or stress engineering, with a degree credited by a recognized institution.
Year 4–7Codes & standards depthAdd Section III plus RCC-M/EN/BS or pressure legislation as the programme requires, seeking to build expertise.
Year 6–10Nuclear compliance ownershipTranslate safety classification and PE(S)R/PSSR requirements into a defensible Code route, committed to compliance.
Year 9–14Supplier/regulator interfaceLead positions across designers, manufacturers, independent inspection and safety-case teams, mentoring employees.
Year 12+Principal codes authorityOwn code-selection policy and difficult cross-code decisions, demonstrating leadership and creative thinking.
Before you apply

Are you actually ready to compete for an ASME code compliance engineer role?

“Knowledge of ASME Section III” is not evidence. Recruiters want the edition, subsection, component class, components owned, Design Specifications/Reports, Code Cases, NCRs, supplier/ANI interfaces and sign-off authority. The shortlist is built around decisions you defended.

Free resume scoring on avua. Your score is yours; it is not shared with employers.
Example scorecardIllustrative
68out of 100

Show which Code decision you owned, what component or document it affected and how it was closed.

A typical nuclear mechanical engineer CV
68
Average of shortlisted candidates
79
Top decile for ASME code compliance roles
91

Illustrative TRX shortlisting pattern only.

Licences & clearance

The credentials that actually gate the work

The gate is demonstrable Code authority and nuclear-QA competence; formal sign-off depends on employer, jurisdiction and component scope.

CredentialJurisdictionRequired forTimeNotes
Engineering degree or equivalent depthAllMost design/compliance appointments3–4+ yrsMechanical is most direct; materials, nuclear or structural routes work with relevant pressure-boundary experience.
ASME BPVC Section III competenceAllIndependent Code decisionsYearsMust be edition/subsection-specific; NCA plus NB/NCD/NF/NG and II/V/IX/XI interfaces matter.
PE licenceUSCertain responsible/certifying roles4+ yrs post-degree typicalNot universal; some principal certifying roles make active PE a hard requirement.
CEngUKSenior technical credibilityExperience-basedValuable for principal roles; not an ASME requirement and not a substitute for SQEP evidence.
NQA-1 / 10 CFR 50 Appendix B competenceUS / globalNuclear design/manufacturing assuranceRole-specificSection III work must sit inside the applicable QA programme; Part 21 may also apply.
ASME Certificate Holder / survey experienceGlobalN/NPT/NA/NS/NV programmesRole-specificCertificates belong to organisations; joint-review and Authorized Inspection experience is valuable.
BPSS / SC or site accessUKSite / sensitive programme accessWeeks to monthsBPSS is common; sensitive scopes may require SC.
Unescorted access / export or citizenship gateUSPlant, federal, naval or controlled workSite-specificSeparate from engineering competence; export or citizenship restrictions may apply.

N-type Nuclear Certificates of Authorization are organisational certifications. Do not describe one as your personal ASME certification.

Skills screened

What appears on a 2026 ASME code compliance shortlist

The shortlist wants someone who converts a Code requirement into a controlled engineering decision and leaves reproducible evidence.

Hard filters

Named on the specification

  • Code-of-record and Section III navigation — identify the invoked edition/addenda, NCA duties, class and subsection; latest publication is not automatically the project Code.
  • Classification and requirement flow-down — translate safety class, service conditions and design requirements into specifications, procurement documents and supplier duties.
  • Design Specification / Design Report compliance — understand loads, service levels, stress limits, fatigue, overpressure protection and the certification document chain.
  • Sections II / V / IX interface control — align materials, welding/brazing qualifications and NDE with the Section III construction route.
  • Code Case, interpretation and NCR disposition — establish whether an alternative is applicable, control deviations and know when regulatory approval is required.
  • Nuclear QA and Authorized Inspection interface — preserve NQA-1/Appendix B traceability, hold points and objective evidence for Authorized Inspection.
Differentiators

What decides between two shortlisted candidates

  • N / NPT / NA certification programme history — initial certification, renewal, survey or joint-review experience separates practical users from design-only candidates.
  • Section III Division 5 / advanced-reactor experience — high-temperature designs, novel materials and emerging Code routes remain scarce.
  • ASME committee / Code Case involvement — inquiries or committee work show understanding of Code intent, not just paragraph recall.
  • PE plus certifying-engineer responsibility — valuable where US principal roles combine professional registration with formal authority.
  • Supplier manufacturing recovery — resolving late material, weld, NDE or records failures without losing Code pedigree protects schedule and sunk cost.
  • Cross-jurisdiction code strategy — ASME plus UK PE(S)R/PSSR/ONR, RCC-M or other national requirements supports multi-market vendors.
The ASME BPVC edition is a fundamental requirement. Top candidates clarify which edition, addenda, Code Cases, regulatory frameworks, and project-specific job description details apply. A correct interpretation using the wrong Code of record can still lead to non-compliance. Demonstrated expertise in the relevant ASME Section III edition and subsection is vital for ensuring nuclear pressure boundary compliance and impacts asme code compliance engineer salary and career progression, especially for those with two years or more experience.
Where the jobs are

The 2026 demand map

Demand rises as reactor programmes move into procurement and manufacturing, when Section III decisions become costly to change.

ProgrammeLocationPhase in 2026Engineering demand
Rolls-Royce SMRUKTechnology partner contract active; GDA Step 3 ongoingVery high — current Codes & Standards and Manufacturing Lead – ASME hiring builds Section III and certification capability.
TerraPower Natrium, Kemmerer Unit 1Wyoming, USNuclear construction commenced April 2026Very high — FOAK procurement and construction drive component-code, materials, supplier and QA decisions.
X-energy Xe-100 / Dow SeadriftTexas, USARDP design/licensing work continuingHigh — component design and supplier qualification need defensible Code selection and manufacturing controls.
Oklo Aurora-INLIdaho, USDOE pilot safety authorisation and construction progressingHigh / developing — rapid deployment and manufacturing create pressure-boundary, QA and code-integration work.
Westinghouse AP1000 / fleet / advanced reactorUS / globalNew-build, fleet and advanced-reactor engineeringVery high — live roles continue to request Section III/XI and Design Specification/Report experience.
Holtec SMR-300 and nuclear systemsUS / UKUK Step 2 GDA completed March 2026High — mechanical roles use Section III Class 1/2/3 design, stress and fatigue.
BWXT Naval Nuclear Propulsion manufacturingUS$1.4bn FY2026 contracts; manufacturing through 2030Very high manufacturing — large component programmes reward Code-quality, materials and traceability depth.
US operating reactor fleetUnited StatesOperations, modifications and outagesSteady high — Section III construction Code interfaces with Section XI repair/replacement and 10 CFR 50.55a.
ASME-certified nuclear component manufacturersUS / globalCapacity expansion and supplier qualificationHigh specialist — N/NPT/NA/NS/QSC programmes need design-to-certification ownership.

Programme phases move. Confirm current status before making a relocation decision.

Read the market this way

Certification capability is moving upstream

Advanced-reactor programmes cannot bolt ASME compliance onto a finished design. Vendors are building code governance, suppliers and certification capability alongside licensing, so engineers who influence requirements before procurement carry the most value.

The scarcity

Engineers who understand the whole Section III chain

The scarce profile can move from NCA duties through design, materials, welding, NDE, supplier controls, Authorized Inspection and final data reports. Add PE/certifying authority or real N-type certification-programme experience and the pool becomes very small.

Where it leads

Adjacent and onward roles

The role sits between mechanical design, structural integrity, nuclear quality and technical governance.

Nuclear Mechanical EngineerBroader system/component design; less programme-wide Code governance.
Pressure Systems Engineer (Nuclear)Owns pressure-system integrity, legislation and operating requirements.
Structural Integrity EngineerMoves deeper into stress, fatigue, fracture mechanics and defect tolerance.
Supplier Quality EngineerFocuses supplier qualification, surveillance and manufacturing assurance around the Code framework.
Nuclear Codes & Standards LeadOwns code selection, interpretations, governance and technical policy.
Chief / Principal Mechanical Engineer (Nuclear)Senior authority combining Code expertise with wider design accountability.
Questions

Questions we get asked every week

How much does an ASME code compliance engineer earn in 2026?

TRX models established US ASME code compliance engineers at $110,000–$150,000 base, with principal certifying-authority roles reaching around $180,000–$190,000. UK established engineers typically earn between £54,000–£75,000; current Rolls-Royce SMR ASME roles are approximately £53,800–£78,750. These salary bands reflect market demand as no exact-title national wage series exists. Salaries vary based on required qualifications, license required working experience, and the ability to resolve problems in complex projects.

Do you need an ASME certification or licence to be an ASME code compliance engineer?

No universal individual ASME certification or licence is required. N, NA, and NPT Certificates of Authorization belong to organisations, while engineers qualify under employer or project arrangements. An active Professional Engineer (PE) license may be required for some US certifying roles. The successful candidate typically possesses a bachelor's degree or equivalent preferred minimum in mechanical or nuclear engineering and demonstrates a high degree of professionalism and ability to display respect for diverse teams.

Do you need a mechanical engineering degree?

Usually, yes. A bachelor's degree in mechanical engineering is the most direct route, but materials, nuclear, structural, or manufacturing engineers with a strong background in mechanical analysis methods can qualify by building equivalent pressure-boundary and ASME Section III Code depth. Real deliverable ownership and participation in design development, design reviews, and customer deliverables matter more than the degree label at senior levels.

What is the difference between an ASME code compliance engineer and a mechanical design engineer?

The mechanical design engineer creates design solutions and develops components using CAD tools, focusing on structural integrity and fabrication. In contrast, the ASME code compliance engineer governs whether the entire compliance route—edition, classification, specifications, materials, fabrication, welding, NDE, testing, nuclear QA, Authorized Inspection, and certification records—meets the applicable ASME Boiler and Pressure Vessel Code, particularly Section III requirements. They also foster teamwork and display respect for diverse project teams, including mentoring junior engineers.

Should a nuclear project automatically use the latest 2025 ASME BPVC edition?

No. The 2025 ASME BPVC is the latest published edition, but the applicable project Code is determined by regulatory and contractual bases. In February 2026, the NRC proposed approval of the 2023 edition through 10 CFR 50.55a; therefore, the code engineer starts with the approved code of record, not necessarily the newest edition. This ensures compliance with national origin, gender identity, sexual orientation, and equal opportunity employer practices.

What ASME skill is most valuable in nuclear hiring right now?

Practical Section III judgement across the certification chain is most valuable. The strongest candidates can identify NCA responsibilities, review Design Specifications and Design Reports, manage Sections II/V/IX interfaces, and control Code Cases, NCRs, suppliers, and Authorized Inspection. Experience supporting licensing, disability insurance considerations, and possessing strong communication skills to collaborate openly and resolve problems within project teams carries the clearest premium.

Nuclear only

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

TRX can assess whether your ASME background fits component design, Section III governance, supplier manufacturing, certification, fleet modification or advanced-reactor work. Show the editions/subsections used, components owned, ANI/certification interfaces and decisions you were authorised to make.