Freelance On-Site ISO Auditor -- Multiple Locations / Paid Per Audit

Freelance On-Site ISO Auditor -- Paid Hourly Per Audit Assignment

We are looking for experienced freelance ISO auditors for on-site audit assignments. This is not a full-time role. Auditors will be contacted when an ISO audit is available in their area, and each assignment will be scheduled based on location, availability, ISO standard, and audit scope.

The work is paid hourly through Upwork, but each assignment will be agreed in advance based on the audit day, expected hours, travel requirements, and auditor qualifications.

Responsibilities:

Conduct on-site ISO audits at client locations

Review documents, processes, records, and operational controls

Interview relevant personnel during the audit

Identify conformity, nonconformity, risks, and improvement opportunities

Follow the assigned audit plan, checklist, and reporting format

Prepare clear audit notes and audit reports

Submit required documentation on time

Maintain professionalism, confidentiality, and independence during audits

Required experience:

Experience conducting ISO audits

Knowledge of one or more ISO standards such as ISO 9001, ISO 14001, ISO 45001, ISO 27001, ISO 22000, ISO 13485, or other management system standards

Lead Auditor certification preferred

Ability to perform professional on-site audits

Strong communication and report-writing skills

Ability to travel locally to client sites when required

Availability for day-based audit assignments

Preferred qualifications:

ISO Lead Auditor certification

Experience with certification audits, supplier audits, second-party audits, internal audits, or gap assessments

Experience auditing industries such as manufacturing, construction, logistics, food, healthcare, IT, services, or industrial operations

Ability to audit in English; additional languages are a plus

Availability in multiple cities or regions

Payment:

This is an hourly Upwork contract.

Expected range: $35–$85 per hour, depending on experience, ISO standard, location, and audit scope.

Each audit assignment will be confirmed in advance, including expected hours, site location, reporting requirements, and any travel expectations.

To apply, please answer these questions:

Which ISO standards are you qualified to audit?

Do you have Lead Auditor or Internal Auditor certification? If yes, for which standard?

Which city, state/province, and country are you based in?

Are you available for on-site audits?

What is your hourly rate?

Are you willing to travel? If yes, what areas do you cover?

What industries have you audited before?

What types of audits have you performed: certification, internal, supplier, second-party, gap assessment, surveillance, or recertification?

What languages can you audit in?

How soon are you available for assignments?

Please do not apply unless you have real ISO audit experience. We are looking for qualified auditors only.

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