For Brands · Medical Device Firms · Litigation Teams

Senior Quality Engineering.
By the Engagement.

Independent quality engineering services from a 20-year senior QA engineer. Fixed-scope, fixed-price engagements for small consumer product brands launching new products, medical device firms responding to FDA enforcement, quality directors preparing for ISO certification, and litigation teams needing an experienced expert witness.

20+ Years QA Across Medical, Aerospace & Consumer Goods
ISO 9001 / 13485 / 14001 / OHSAS 18001 Audit Lead
Past FDA-Inspected QMS · Supplier Quality Auditor

Four Productized Engagements

Fixed scope, fixed price, written deliverables. No hourly billing, no scope creep, no six-month engagements before first results.

🔧 For Brands & FBA Sellers

Pre-Launch QA Audit

Independent senior QA review of a consumer product before it ships — spec sheet, supplier docs, recall-data check, risk-ranked findings. One-week turnaround.

  • 10-point QA Audit methodology
  • Risk-ranked findings (high / medium / low)
  • Manufacturer reliability check (CPSC / FDA / USDA / NHTSA data)
  • Prioritized action list + 30-min review call
⚖️ For Litigation Teams

Expert Witness

Quality engineering expert for product liability, recall, and quality-system disputes. Senior cross-industry depositions, written reports, and trial testimony.

  • Consumer product liability + medical device cases
  • Commercial / industrial equipment failures
  • Supplier quality & ISO non-conformance disputes
  • Live federal recall data for case discovery
🚨 For Medical Device Firms

FDA 483 / Warning Letter Response

Just received a 483 or Warning Letter? Formal response drafting, CAPA plan, and remediation oversight — submitted on or before your 15-business-day deadline.

  • Formal response within 15 business days
  • CAPA plan for each cited observation
  • Mock-audit / readback before submission
  • 21 CFR Part 820 + ISO 13485 lead-auditor experience
📋 For Quality Directors

ISO 13485 / 9001 Audit Prep

External lead-auditor walks your QMS the way the registrar will. Gap report, corrective-action plan, optional retainer through the cert visit.

  • 3-5 day on-site mock audit
  • Full gap report against the standard
  • Written corrective-action plan, prioritized
  • Optional cert-day retainer
Founder & Practitioner

Mark Mayeux

Quality Engineer · QESaaS
20+Years QA
4ISO Standards Lead
3Industries Deep
1Med-Device Exit

Senior Quality Engineering. Three Industries. Four Engagement Types.

Twenty-plus years in product quality engineering across medical devices, aerospace, and consumer goods. ISO 9001, ISO 13485, ISO 14001, and OHSAS 18001 audit lead. Past supplier-quality auditor across categories. Director of Quality at Anatomy Supply Partners (US/China medical device sourcing) and Scotsman Ice Systems (Ali Group subsidiary, passed McDonald's, GE, and Viking customer audits).

Built the entire quality department at a medical equipment startup from scratch — agency documentation, supplier scoreboards, US/China cross-border QMS — which was later acquired by a larger company.

21 CFR Part 820 ISO 13485 ISO 9001 / 14001 OHSAS 18001 21 CFR Part 11 Six Sigma Supplier Auditing cGMP Design Controls (DHF / DMR / DHR)
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Published in Public

The QA Audit Methodology

Our 10-point quality engineering framework — applied to every Pre-Launch Audit, every Expert Witness report, every ISO audit prep, every FDA 483 response. Read the methodology, the AI-vs-human split, and the federal data sources before you decide whether to engage.

Read the Methodology →

Three Audiences, Different Engagements

Each service is built for a specific buyer with a specific problem. Pick the page that matches what you came here looking for.

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Brands & FBA Sellers

Launching a consumer product on Amazon, DTC, retail, or via crowdfunding? Get an independent senior QA review of your product before it ships.

View Pre-Launch Audit →
🏥

Medical Device Firms

Just received an FDA Form 483 or Warning Letter? Or preparing for an ISO 13485 cert / recert audit? Senior QA support with deadline-driven turnaround.

View FDA 483 Response →
⚖️

Litigation Teams

Plaintiff or defense counsel on a product liability, recall, or quality-system case? Cross-industry experienced expert witness available for retainer.

View Expert Witness →

Discuss an Engagement

Initial scoping calls are free. Tell me what you're working on and I'll tell you whether the engagement is a fit — and if not, point you to someone better suited.