NDT Jobs & Salaries in St. Louis, MO
The NDT job market in St. Louis is shaped directly by its industrial base — Defense aerospace, Nuclear (Ameren Callaway regional), Brewing. Major employers and asset owners in the area include Boeing St. Louis (F-15 / F/A-18 / T-7A), Boeing Hazelwood (former GKN), Anheuser-Busch St. Louis brewery, all of which run continuous inspection programs and rotate inspection contractors against multi-year MSAs. Code authorities most often cited in local procurement specifications are FAA Part 145, AS9100, Nadcap, so any inspector hunting work in St. Louis should expect those references in interviews and pre-qualification packages. Wages track close to the national median for inspectors, with overtime making up the variable component. A recurring local theme: "Boeing's Lambert campus runs Nadcap-audited NDT for F-15EX and Super Hornet wing structures — every Level III on contract has to track AS9100 plus the customer's source-inspection record." Beyond the top-of-mind names, the deeper bench in St. Louis includes Express Scripts, Emerson Electric HQ — these are the employers that pre-qualification managers screen most often when filling rotational openings. BLS-anchored Level II wages in St. Louis run around $76,000/yr; Level III with API endorsements layers on to roughly $116,000/yr — the gap between the two is the single biggest reason local inspectors pursue Level III. Jurisdictional layer matters here: AS9100 and Nadcap NDT apply on top of the federal/national codes, and missing the local-authority reference on a procedure submission is a common rejection reason for first-time-into-St. Louis contractors. One angle that differentiates St. Louis from peer markets: Boeing Defense HQ — F-15EX + F/A-18 + T-7A trainer production. Turnaround calendar: Spring/Fall TARs — the inspection workforce flexes hard against this rhythm and overtime stacks during those windows.
Local industries
Top local employers / asset owners
- • Boeing St. Louis (F-15 / F/A-18 / T-7A) (Defense aerospace)
- • Boeing Hazelwood (former GKN) (Aerostructures)
- • Anheuser-Busch St. Louis brewery (Process manufacturing)
Methods most-used locally
FPI to NAS 410; eddy-current array; phased-array UT on composites; X-ray and CT; UT; RT; PT; MT.
| Role | Pay (USD) |
|---|---|
NDT Trainee / Helper 0-1 yrs • No certification yet; pursuing ASNT Level I | $38K–$50K |
ASNT Level I Technician 1-2 yrs • ASNT NDT Level I in one or more methods | $48K–$65K |
ASNT Level II UT/RT/MT/PT Inspector 3-6 yrs • ASNT NDT Level II in primary method(s) | $60K–$92K |
PAUT/TOFD Technician 4-8 yrs • ASNT Level II UT plus PAUT and/or TOFD endorsement | $78K–$115K |
API 510 / 570 / 653 Inspector 5+ yrs • API 510, 570, or 653 individual certifications | $88K–$135K |
ASNT Level III / NDE Engineer 8-15 yrs • ASNT NDT Level III in multiple methods | $110K–$175K |
Certifications worth holding for the St. Louis market
- ASNT NDT Level II in your primary method (UT or RT is the most marketable starting point)
- NAS 410 — mandatory for aerospace prime-contractor inspection work
- ASME Section XI / ANSI N45.2.6 — required for in-service inspection at nuclear plants
- AAR M-1003 quality program awareness for rail-NDE contractors
- ASNT Level III in your primary method (the credential that unlocks procedure approval and inspector certification)
Application checklist
- Photo of your current ASNT (or ISO 9712 / NAS 410) certification card and the underlying written practice that issued it.
- Proof of relevant API certifications (510 / 570 / 653) if you are applying to St. Louis refining, petrochemical, or pipeline work.
- Documented vision examination (current within 12 months) and physical / colour-perception test as required by your written practice.
- A method-by-method experience log totalling the hours required by your level (e.g. 1,600 h for Level II UT under SNT-TC-1A).
- OSHA 10 (or 30) construction safety card; many petrochemical sites also require TWIC, BROWZ, ISN, or Avetta enrollment.
- Procedure-writing samples if applying for Level III or NDE engineer roles — at minimum a UT or RT procedure you authored.
- A signed reference from a Level III or supervising inspector who can vouch for your hands-on experience hours.
Frequently asked
What's the entry-level NDT salary in St. Louis?
Entry-level NDT trainees in St. Louis start around $38K-$54K (BLS-anchored regional band). Once ASNT Level I certifications come in (typically 6-12 months), base pay steps to ~$54K-$76K, with turnaround overtime layering on top.
Which NDT certifications are most in-demand in St. Louis?
ASNT NDT Level II in your primary method (UT or RT is the most marketable starting point); NAS 410 — mandatory for aerospace prime-contractor inspection work; ASME Section XI / ANSI N45.2.6 — required for in-service inspection at nuclear plants — these are the certifications that show up most often in local procurement and pre-qualification packages. Note also AS9100 and Nadcap NDT — local code references that procurement managers expect inspectors to be familiar with.
Are remote / travel NDT roles available out of St. Louis?
Yes. Most St. Louis-based inspection contractors run a mix of local turnaround work and travel-rotation positions to other regions; a willingness to mobilise is one of the fastest ways to break into the industry from a Level I background.
Who are the largest NDT employers in St. Louis?
The biggest single employer of NDT inspectors in St. Louis is Boeing Defense Space & Security HQ; the broader top-five typically also includes AB-InBev North America HQ, Phillips 66 Wood River Refinery (40km), Express Scripts, Emerson Electric HQ. Pre-qualification with the top three names unlocks the bulk of the local volume.
What makes the St. Louis NDT market different from neighbouring cities?
Boeing Defense HQ — F-15EX + F/A-18 + T-7A trainer production Combined with: anheuser-busch ss welding (food contact, 3-a sanitary). These local specialties shape the kinds of credentials that get hired here vs. neighbouring metros.
When does NDT hiring spike in St. Louis?
Hiring follows the local turnaround calendar: Spring/Fall TARs. Recruitment for these surge periods typically opens 60-90 days ahead, so positioning your resume by January for a spring TAR or July for an autumn TAR is the most effective approach.
NDT Training in St. Louis
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