Reliability engineering is viewed by many as a technical discipline focused on analysis, modelling, and prediction. While those skills matter, they are only part of the role.
In practice, reliability engineers are also technical leaders. Their value is not just in producing analyses, but in influencing decisions beyond their own calculations, often before those decisions become difficult or expensive to change. That influence typically includes:
Challenging assumptions
Questioning ambiguous functions, optimistic targets and poorly defined operating conditions before they become embedded in designs, contracts or plans.
Shaping early thinking
Helping teams recognise where reliability needs to be designed in, rather than treated as downstream verification activity.
Supporting informed trade-offs
Making the reliability implications of cost, schedule, performance and support decisions visible, using evidence rather than optimism.
Joining the dots
Connecting reliability with safety, quality, operations, maintenance and logistics support, rather than treating it as a standalone technical activity.
In practice, it often comes down to a small number of leadership “facets”, as helpfully described in the Certified Reliability Engineer Handbook:
Focus – get the job done
Keep attention on what really matters for reliable performance in service, not just what is easiest to measure.
Authenticity – constancy of purpose (Deming)
Be consistent, holding a clear position on reliability intent even when pressures build elsewhere.
Courage – stand up to criticism, support reliability decisions
Be willing to challenge optimistic assumptions or uncomfortable conclusions when the evidence demands it.
Empathy – understand all areas of a problem and people interaction
Understand different perspectives and priorities across engineering, operations, and management.
Timing – know when to make a critical decision
Know when to push an issue, when to listen and when to intervene before designs are frozen or decisions are finalised.
Reliability engineering isn’t just about producing the right answers, it’s about asking the right questions early and having the professional credibility to speak up when reliability risk is being underestimated or misunderstood.
Reliability leadership doesn’t require seniority or a management title. It can, and should, be exercised at all levels, wherever reliability decisions are being shaped.
Next up…
Reliability Bites #6: The role of the reliability engineer – responsibilities across the lifecycle.
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