Karreman Quarries is seeking an experienced Construction Materials Testing (CMT) professional to independently manage our NATA-accredited laboratory at Harlin Quarry. This autonomous, single-person role offers genuine freedom to organise daily operations, testing priorities and workload, with support from the Mt Cotton laboratory team. You will report directly to the company QA & Laboratories Manager.

Regular travel between Harlin and Mt Cotton to deliver samples makes this position ideal for someone who enjoys driving and variety in their working week.

WHAT WE OFFER

- Competitive hourly remuneration based on experience and qualifications.
- Company vehicle with reasonable personal use under agreed arrangements.
- Paid commuting time may be available depending on location and agreed arrangements.
- Overtime and penalty rates where applicable.
- Genuine autonomy to manage your own laboratory, backed by an experienced team.
- Stable, full time employment with a well-established Queensland quarrying business.

KEY RESPONSIBILITIES

- Independently manage daily sampling, testing, quality control and reporting.
- Test soils, roadbase,



aggregates and other quarry materials.
- Monitor production and maintain accurate test, equipment and quality records.
- Transport samples between Harlin and Mt Cotton as required.
- Maintain compliance with relevant standards, specifications and quality requirements.
- Liaise with quarry operations and escalated technical matters when necessary.

ABOUT YOU

- Minimum four years’ experience in construction materials testing.
- Certificate IV minimum in a relevant laboratory discipline; Diploma preferred.
- Sound knowledge of Australian Standards and construction materials testing.
- TMR specifications and NATA laboratory experience highly regarded.
- Independent judgement, strong organisation and clear communication.
- Current Queensland driver licence.

INTERESTED?

If you are an experienced CMT professional seeking independence, competitive remuneration and a company vehicle, we would like to hear from you. Applicants from Somerset, Toowoomba, Ipswich and surrounding regions are encouraged to apply.

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📌 Laboratory Supervisor (East Ipswich)
🏢 Karreman Quarries
📍 East Ipswich