Quality roles: inspection, metrology and audits

The ladder from inspection to management

Quality roles form a fairly clear sequence, and it is worth knowing which rung a brief is actually on. The difference between adjacent rungs is not diligence but what the person decides and what outputs they leave behind.

In smaller operations the rungs merge and one person does inspection, metrology and complaints. That is legitimate, but it has to appear in the brief — otherwise candidates arrive from one rung while the company expects someone to cover three.

Which rung the role stands on also settles the order in which to think about the offer. Specific figures are not on this page: no wage amounts for quality roles are stated here. Earnings by occupation are published by the Czech average-earnings information system (Informační systém o průměrném výdělku, ISPV), the requirements of an occupation by the Czech national occupations register (Národní soustava povolání), and the standards of professional qualifications by the Czech national qualifications register (Národní soustava kvalifikací). Begin by fixing which rung you actually mean, not by weighing an amount.

The rungs, from inspection upward:

1. Quality inspector — measurement and visual inspection to the control plan, recording results, blocking non-conforming parts
2. Quality technician — control instructions, resolving non-conformities in the operation, communication with production and with the supplier
3. Metrologist — management of gauges, calibration and traceability, the company metrological rules
4. Quality engineer — sample and process release, root-cause analysis, customer communication
5. Quality manager — the department, the system, audits, and representing the company to the customer

Measuring competence is the main axis of selection

Differences between candidates show reliably in measurement. Callipers and a micrometer can be mastered by almost anyone after instruction; the difference lies in whether the person reads a drawing including tolerances and geometric specifications, selects a gauge appropriate to the dimension, and recognises when that accuracy is not enough and a coordinate measuring machine is needed.

A practical test is short and convincing: give the candidate a drawing and a part and have them describe what they would measure the dimension with and how, and what they would do with a result at the tolerance limit. An answer of "I measure it and write it down" and an answer that mentions the repeatability of the measurement and the condition of the gauge describe two different levels.

What the measuring part of the profile is made of:

• Reading a drawing including tolerances and geometric specifications
• Choosing a gauge according to the accuracy required
• Working with a calibrated gauge and its calibration certificate
• Experience of coordinate measurement and of evaluating the resulting protocol
• What they do with a borderline or a non-conforming result

Calibration and the Czech metrology framework

The metrological part of the role rests on someone being able to defend a measurement result. Czech Act 505/1990 Sb. on metrology sets out the classification of measuring instruments and, for so-called specified measuring instruments, requires verification; under that act verification is entrusted to state metrology and authorised bodies, not to a company metrologist. Other working instruments the company maintains by calibration according to its own metrological rules and intervals.

The concrete question for a brief follows: does the company have specified measuring instruments, who keeps their records, and who decides on intervals. Verify the concrete classification of instruments and the duties attached to them against the wording of the Act currently in force and its related regulations.

System standards, as employers state them

System standards appear regularly in briefs: ISO 9001 as a general framework for a quality management system, IATF 16949 for suppliers to the automotive industry, and HACCP as a food-safety system in food production. We describe these as requirements employers state, not as certifications held by a staffing agency.

What matters for a candidate profile is what the requirement means in practice: familiarity with the documentation and records, experience of an internal or customer audit, and the ability to defend a procedure to an auditor. If the company is only preparing for certification, that is a different brief from maintaining an established system — and a different person is being sought.

What the brief should say about the system:

• Whether the system is running, is being implemented, or is being renewed
• The difference between experience of being audited and experience of conducting internal audits
• Who keeps the documentation and who deals with the customer
• In food production, how the hygiene records are set up

Complaints, 8D and everyday documentation

Daily work in quality is not measurement but writing. Inspection records, protocols, batch release, blocking, descriptions of non-conformity and responses to complaints make up most of the output — and they are what remains when a problem is examined months later.

Customer complaints have a settled structure in supply chains; in the automotive industry the 8D format is commonly required, with immediate containment, root-cause analysis and verification of effectiveness. This is simple to check: have the candidate describe one complaint they ran from receipt to closure, and listen for whether they separate the cause from the symptom and can say how they confirmed the measure worked. It is worth checking the clarity of their written expression too, ideally on a short written task.

Independence, and why the sector carries weight here

Quality performs its function only when the person who stops a batch is not assessed on the output of the shift they are stopping. Before opening the position, settle who the role reports to, what it may decide alone, and who decides in a dispute with production. Candidates ask, and an evasive answer is a warning sign to experienced people.

The sector counts for more here than in other technical roles. An automotive supplier works with a different documentation culture and a different escalation tempo from food production, where hygiene, batch traceability and sensory assessment enter alongside measurement. A move between sectors is possible, but it means a period in which the person knows the method and is learning the environment. For candidates with foreign education, settle in advance whether and in what form you require recognition of that education; the framework is described by the Czech Ministry of Education and by the Czech act on the recognition of professional qualifications.