Review the evidence signals before interviewing. Then use the anchored descriptions—not instinct alone—to choose the score that best matches each answer.
01
Evaluation factor
Hands-on competence
35% weight
Check which equipment lines they service unsupervised: pumps, compressors, HVAC units, CNC drives or forklifts, plus hands-on work with multimeters, torque wrenches, alignment tools and OEM service manuals.
Evidence to listen for
Names the equipment, materials, and tolerances they work to
Can describe a job start to finish without hand-waving the hard parts
Holds the tickets, licences, or certifications the work requires, and they are current
Knows what they are not qualified to touch
Five-point scoring guide
1
Poor
Cannot describe the work concretely; lacks required tickets or licences.
2
Needs Improvement
Basic familiarity; needs supervision on routine tasks.
3
Satisfactory
Competent on standard work; slower or unsure on unfamiliar jobs.
4
Very Good
Skilled and independent across the normal range of the role.
5
Excellent
Names specific makes and models serviced, describes overhaul and calibration steps in sequence, and cites first-time-fix rates or callback numbers.
02
Evaluation factor
Safety discipline
30% weight
Probe lockout/tagout practice, PPE discipline, arc flash or confined space training, refrigerant handling (EPA 608) and how they handle a customer pushing them to skip a step.
Evidence to listen for
Treats procedure as protection rather than paperwork
Can describe a time they stopped work and why
Knows the specific hazards of this trade and the controls for each
Reports near misses instead of hiding them
Five-point scoring guide
1
Poor
Casual about safety; describes shortcuts with pride.
2
Needs Improvement
Follows procedure when watched; cannot name the hazards that matter.
3
Satisfactory
Sound safety habits; less certain on unfamiliar hazards.
4
Very Good
Safety is instinctive; can describe stopping work over a real concern.
5
Excellent
Treats LOTO and permit steps as non-negotiable, recalls a job they stopped, and holds current certifications with documented refresher training.
03
Evaluation factor
Fault finding
20% weight
Test diagnostic method on intermittent faults: reading error codes, tracing hydraulic or electrical schematics, vibration or thermal readings, and deciding repair versus replace on aging assets.
Evidence to listen for
Has a method for narrowing a fault rather than swapping parts
Reads schematics, manuals, or error codes and acts on them
Knows when to escalate rather than guess
Can describe a fault that took real work to find
Five-point scoring guide
1
Poor
Parts-swapper; no diagnostic method.
2
Needs Improvement
Fixes symptoms; cannot explain how they found the cause.
3
Satisfactory
Solid on familiar faults; less structured on new ones.
4
Very Good
Clear systematic method with a real hard-fault story.
5
Excellent
Walks a fault from symptom to root cause with instrument readings, and explains what they ruled out before swapping any part.
04
Evaluation factor
Reliability and conduct
15% weight
Assess service record habits: work order completion in the CMMS or field app, parts van inventory, response times on emergency calls, and conduct on customer sites.
Evidence to listen for
Turns up, on time, prepared
Handles shift work, callouts, or travel as the role requires
Documents work so the next person can pick it up
Deals with customers or site staff professionally
Five-point scoring guide
1
Poor
Unreliable attendance; unprofessional on site.
2
Needs Improvement
Inconsistent; documentation is an afterthought.
3
Satisfactory
Dependable; paperwork is adequate.
4
Very Good
Consistently reliable, documents well, professional with customers.
5
Excellent
Closes work orders with clear parts and labour detail, arrives prepared with stocked stock, and customers request them by name.
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