Interview Process — Trades & Construction Edition
A standard operating procedure for conducting structured, fair, and effective job interviews that accurately assess candidate suitability, provide a positive candidate experience, and support informed hiring decisions.
Purpose
To ensure all job interviews are conducted consistently using structured techniques that fairly assess each candidate's skills, experience, and cultural fit, while providing a professional experience that positively represents the organisation as an employer.
Scope
This SOP covers all stages of the interview process from preparation through to candidate evaluation and decision-making. It applies to all interview formats including telephone screening, video interviews, panel interviews, and face-to-face meetings for all roles.
Prerequisites
- Shortlisted candidates confirmed and interview invitations accepted
- Interview panel members identified and briefed on their roles
- Structured interview questions prepared and aligned with selection criteria
- Interview venue booked and logistics confirmed with all participants
Compliant with Safe Work Australia requirements, state WHS legislation, and Building Code of Australia (NCC) documentation standards.
Step-by-Step Procedure
Prepare Interview Materials and Panel
Assemble all materials needed for the interview including the candidate's application, the structured question set, scoring sheets, and the position description. Brief the interview panel on the process, their roles, and the assessment criteria.
- 1.1Print or distribute copies of each candidate's application to all panel members
- 1.2Review the structured interview questions and scoring criteria with the panel
- 1.3Assign specific question areas to each panel member
- 1.4Confirm the interview schedule and time allocated per candidate
- 1.5Prepare the interview room with water, notepads, and any required technology
- Hold a brief panel calibration session before the first interview to ensure consistent scoring standards
- Ensure all panel members have read each candidate's application before the interview day
Welcome the Candidate and Set the Scene
Greet the candidate warmly, make them comfortable, and outline the interview format and timeline. Introduce all panel members and their roles, and explain how the interview will be structured.
- 2.1Meet the candidate at reception and escort them to the interview room
- 2.2Offer water and allow a moment to settle
- 2.3Introduce each panel member and explain their role in the interview
- 2.4Outline the interview structure, duration, and what to expect
- 2.5Explain that notes will be taken during the interview for accuracy
- A warm welcome helps candidates feel at ease and perform at their best
- Allow five to ten minutes between candidates for panel discussion and room reset
Conduct the Structured Interview
Ask the prepared questions in the agreed sequence, probing for specific examples and evidence of capability. Each panel member leads their assigned questions and all members independently score each response.
- 3.1Ask each question clearly and allow the candidate adequate time to respond
- 3.2Use behavioural and situational questions to elicit specific examples
- 3.3Ask follow-up probing questions to explore depth and authenticity of responses
- 3.4Take notes on key points and evidence provided for each question
- 3.5Score each response independently using the agreed rating scale
- 3.6Maintain consistency by asking the same core questions of all candidates
- Avoid leading questions that suggest the desired answer
- Use the STAR method prompts to help candidates structure their responses if they are struggling
Allow Candidate Questions and Close the Interview
Provide the candidate with time to ask their own questions about the role, team, and organisation. Close the interview by explaining the next steps in the process and the expected timeline for a decision.
- 4.1Invite the candidate to ask any questions they have about the role or organisation
- 4.2Answer candidate questions honestly and thoroughly
- 4.3Explain the next steps in the recruitment process and expected timeline
- 4.4Thank the candidate for their time and interest in the position
- 4.5Escort the candidate back to reception or the exit
- The questions a candidate asks can provide valuable insight into their priorities and preparation
- Be honest about the timeline rather than making promises you cannot keep
Debrief and Score Candidates
After each interview or at the end of the interview day, the panel meets to discuss and compare their independent assessments. Review scores, discuss areas of agreement and disagreement, and reach consensus on each candidate's suitability.
- 5.1Each panel member shares their independent scores and observations
- 5.2Discuss areas where scores differ significantly and explore the reasoning
- 5.3Reach consensus on a final score or ranking for each candidate
- 5.4Identify the preferred candidate and backup candidates
- 5.5Job card the panel's assessment and decision rationale
- Score independently before the debrief to avoid groupthink
- Focus on evidence from the interview rather than gut feelings or impressions
Make the Hiring Recommendation
Based on the panel's assessment, prepare a hiring recommendation that identifies the preferred candidate, provides a summary of the assessment, and includes any conditions such as reference checks or pre-employment screening.
- 6.1Prepare the hiring recommendation job card with the preferred candidate and rationale
- 6.2Include a summary of the assessment scores and key evidence supporting the recommendation
- 6.3Note any conditions that must be met before an offer can be made
- 6.4Obtain the required approval for the hiring decision
- 6.5Record the recommendation and approval in the applicant tracking system
- Job card the rationale clearly to support the decision if it is ever questioned
- Consider having a backup candidate identified in case the preferred candidate declines the offer
Quality Checkpoints
Common Mistakes to Avoid
Expected Outcomes
Number of interviews conducted per successful hire, indicating the efficiency and accuracy of the shortlisting and interview process
Average satisfaction rating from candidates surveyed about the interview experience, regardless of the outcome
Performance review scores of new hires at their first formal review, indicating whether the interview process accurately predicted job performance
Frequently Asked Questions
What types of interview questions are most effective?
Behavioural questions that ask candidates to describe specific past experiences and situational questions that present hypothetical scenarios are the most effective at predicting job performance. They should be directly linked to the selection criteria for the role.
How should you handle a candidate who arrives late to an interview?
Note the lateness factually and proceed with the interview. Consider the circumstances — unexpected transport issues are different from poor planning. Assess the candidate fairly on the interview content rather than penalising them solely for lateness unless punctuality is an essential criterion.
How long should interview feedback be kept on file?
Interview records should be retained for the period specified in your organisation's job card retention policy, typically 12 to 24 months. This ensures records are available if a candidate requests feedback or if the decision is challenged.
How many interview rounds should there be?
Most positions can be filled effectively with one to two interview rounds. An initial screening call followed by a panel interview is a common and efficient structure. Senior or specialised roles may warrant an additional round, but more than three rounds risks losing candidates to competitor offers.
Is it appropriate to use practical assessments as part of the interview?
Practical assessments, work samples, or presentations can be highly effective for roles where specific technical or practical skills are essential. Ensure the assessment is fair, relevant to the actual role, and does not require excessive candidate time or effort.
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