Mixed duties need an honest occupation assessment. Identify the engineering work, the supervision responsibilities and the qualifications actually required; a position called engineer does not qualify merely because that word appears in the offer.
Build the assessment around a typical working week
For the consultation, ask the employer for examples of expected deliverables: drawings, calculations, technical approvals, crew schedules or purchasing decisions. Explain how much responsibility belongs to each part of the job and who approves the technical work. Bring the qualification documents you already hold. This working outline helps identify unresolved classification questions before anyone drafts an immigration support letter; it is a preparation exercise, not a government form or a finding that the role qualifies.
The Engineer entry expects a degree or licence; a technologist with a diploma must independently satisfy the Scientific Technician/Technologist entry, including its direct-support requirement, rather than assuming the diploma establishes eligibility. An officer will look at the balance of duties: soil sampling programs, fertility recommendations, trial design and pest scouting are agronomic; account development, order taking and quota management are sales.