Ask senior DevOps engineers what separates them from capable mid-level colleagues, and the answers rarely mention a tool. They talk about judgment: the habit of seeing how a change could go wrong before it is made. One concrete, learnable form of that judgment is the pre-mortem. For a DevOps career, it works twice. It is a technique you apply to your team’s releases, and it is a way to examine your own career moves before you commit to them. This article treats the pre-mortem as a career skill and shows how to build and demonstrate it.
Why this skill is visible to employers
Hiring managers for infrastructure and delivery roles look for people who reduce surprise. A candidate who describes a rollout and then volunteers “here is what we feared and what we did about it” signals maturity far more clearly than one who recites a tool list. Interviewers often probe with a question like: “Tell me about a change that went wrong.” A pre-mortem habit gives you better material, because you can describe failures you prevented as well as those you survived.
The skill also compounds. Each time you run one, you learn which kinds of failure your teams repeat, and your intuition gets sharper. That accumulated pattern knowledge is precisely what we call seniority.
The competencies hidden inside a pre-mortem
- Systems thinking: tracing a change through dependencies you do not own.
- Facilitation: making it safe for quieter colleagues to name concerns.
- Prioritisation: separating likely, damaging failures from merely conceivable ones.
- Written clarity: converting a worry into an action with an owner and a date.
- Follow-through: returning to the page later and comparing prediction with outcome.
Each of these appears on job descriptions for senior roles under different names. The pre-mortem lets you practise all five in a single hour.
Applying it to your own career decisions
Career moves are projects too, and they fail for familiar reasons. Take two common transitions and run the exercise on each.
Moving from operations or support into DevOps
Imagine it is a year after the move and it went badly. Plausible reasons: the new role expected programming depth you had not built; you accepted a title without checking whether the team actually owned automation; you stopped learning once the job began. Each reason suggests a precise action, such as testing your scripting skills against real tasks before accepting, or asking the hiring team to describe a typical week. For a broader view of this path, the article on crossing from sysadmin or support work into DevOps sets out the main steps.
Progressing from junior to senior
Now imagine you are stuck at the same level three years from now. Likely causes: your work was reliable but invisible; you never took ownership of a service end to end; you avoided the unglamorous tasks like documentation and incident follow-up that build trust. The corresponding actions are visibility, ownership and reliability in the dull places. The guide to the progression from early-career to senior DevOps engineer pairs well with this exercise.
Where certifications fit
A common failure story for career planners reads: “I collected credentials and nothing changed”. The pre-mortem exposes the gap between holding a certificate and being trusted with responsibility. Treat certifications as evidence that supports a story, not as the story. If you are weighing which to pursue, a ranking of certifications by career stage is useful context, and the pre-mortem tells you what to ask before booking: what will I be able to do afterwards that I cannot do now?
A perspective from adjacent security practice
Engineers who focus on securing delivery pipelines live with this question daily. DevSecOps Now presents DevSecOps material, and its blog is about securing CI/CD pipelines; reading it exposes you to the vocabulary of adversarial thinking, which employers in regulated sectors value highly. You need not become a security specialist to benefit from the mindset.
How to demonstrate the skill
- Run a pre-mortem on a real change at work, even a small one, and keep the one-page output.
- Record afterwards which predicted failures occurred and which did not.
- Prepare a two-minute account of one risk you caught early and what it saved.
- Offer to facilitate the session for your next team project, since facilitation is a visible sign of seniority.
- Add a single line about this practice to your profile, phrased as an outcome, such as “reduced release surprises by raising risks before kickoff”.
Be honest in that last item. Claims about outcomes should reflect what you actually observed, not an invented figure; an accurate modest statement is more persuasive in an interview than an inflated one.
A worked example from a team setting
Suppose your team plans to replace its deployment tooling next quarter. You propose a thirty-minute pre-mortem and write the framing sentence yourself. Colleagues produce notes about forgotten integrations, an on-call rota that nobody has adjusted, and a vendor contract that ends before the migration does. You cluster these, bring the three costliest to the manager, and attach owners. Whatever happens next, you have shown planning ability, calm leadership and clear writing, which are three things promotion panels discuss. You also gain a reputation as the colleague who makes projects safer, and that reputation travels with you between employers.
Pitfalls to avoid
Do not use the exercise to lobby for a preferred decision by exaggerating risks of the alternative. Do not let it grow into a gloomy session that ends without actions. And do not run it only once: the learning is in the comparison across several projects.
Summary
The pre-mortem is a small practice with a disproportionate career payoff. It develops systems thinking, facilitation and follow-through, it gives you strong interview material, and it improves the quality of your own career choices. Practise it on something modest this month, keep the record, and let the pattern of your experience become your advantage.