Tell me about a time you influenced a technical decision without having formal authority.
- Technology:
- Behavioral
- Experience:
- Senior
Quick answer
Show how you built trust, understood competing concerns, used evidence and helped the group reach a decision.
What the interviewer is evaluating
- Influence
- Leadership
- Technical judgment
- Collaboration
How to structure your answer (STAR)
- Situation: important decision.
- Task: influence without authority.
- Action: evidence and alignment.
- Result: decision and impact.
Example answer
Several teams were considering different approaches to handling shared authentication behavior.
I interviewed the teams about their constraints, documented the common requirements and built a small comparison covering security, operational complexity and migration cost.
The group selected a shared approach with a phased migration. The decision was not based on my preference alone; the comparison gave everyone a common basis for discussion.
Discussion
Senior engineers often influence architecture and engineering practices without being the manager or final decision-maker.
The strongest stories show persuasion through clarity and evidence rather than relying on seniority or force of personality.
Explain what happened after the decision and whether you supported the team鈥檚 final choice.
Key points
- Build alignment
- Use evidence
- Understand other constraints
- Support the final decision
Common mistakes
- Saying people followed you because you were senior.
- Ignoring opposing constraints.
- Confusing influence with authority.
Follow-up questions
- What if your proposal had been rejected?
- How did you handle strong opposing opinions?