Culture and Behavior
Why culture comes first
Tools cannot fix a broken relationship between teams. Culture is the shared set of behaviours, assumptions and incentives that determine how work actually flows. DevOps culture is characterised by shared responsibility for outcomes, high trust, psychological safety, autonomy with accountability, and learning from failure rather than allocating blame.
Concepts a candidate must know
- Westrum's typology of organisational culture: pathological (power-oriented, information hoarded, messengers shot), bureaucratic (rule-oriented, information siloed, messengers ignored), and generative (performance-oriented, information shared, new ideas welcomed). Generative cultures predict higher delivery performance.
- Psychological safety: people can report mistakes, ask questions and raise concerns without punishment. It is the pre-condition for fast feedback.
- Blameless postmortems: focus on systemic causes - conditions, tooling, process, workload - not on who to punish. This increases the chance the same failure is not hidden and repeated.
- Collaboration and trust replace contractual handoffs; teams share goals, on-call duty and metrics.
- Leadership behaviours: servant leadership, visible sponsorship, modelling vulnerability, protecting improvement time, and aligning incentives to outcomes rather than to individual output.
- Conway's Law: system design mirrors communication structures, so team boundaries shape architecture.
Traps in questions
Watch for "hold the responsible engineer accountable" as an answer inside a postmortem scenario - accountability for fixing systems is fine, punishing individuals is not. Another trap is describing culture as perks, values posters or team social events; culture is observable in what happens after an incident. "Culture fit" hiring that reduces diversity is not the same as safety. Also, a team named "DevOps" that owns all pipelines is a structural silo, not a cultural fix.
Rule of thumb
In any postmortem question, prefer answers that ask what and how over answers that ask who.