Behavioral: your most complex project, a conflict you resolved, and a failure
Company: Uber
Role: Software Engineer
Category: Behavioral & Leadership
Difficulty: medium
Interview Round: Onsite
The hiring manager asked several standard behavioral questions. Answer each part with a specific example from your own experience.
### Clarifying Questions
- For the complex project, may the complexity be organizational (many teams, unclear ownership) as well as technical?
- For the conflict, does a disagreement with a manager or with another team count, or should it be with a peer?
- For the failure, should it be one with real impact on users or the business, rather than a minor mistake?
### Part 1 — Your most complex project
Tell me about the most complex project you have worked on. What made it complex, what was your role, and how did it turn out?
```hint Name the complexity
Say precisely what made the project hard, such as conflicting constraints, many teams, a live migration or a hard performance target, instead of listing the technologies involved.
```
#### What This Part Should Cover
- The source of complexity, stated concretely
- Your own decisions and contributions, separated from the team's
- A key decision explained with the alternatives you considered
- A measurable outcome and what you would do differently
### Part 2 — A conflict
Tell me about a conflict you had with a colleague or another team. How did you handle it, and what was the outcome?
```hint Disagreement about what
Pick a conflict about a real decision, such as a design, a priority or a deadline, in which the other side had a reasonable position, and show how you came to understand it.
```
#### What This Part Should Cover
- The other person's position, described fairly
- The steps you took to resolve the conflict, including any data or escalation you used
- The decision that was reached and the state of the working relationship afterwards
### Part 3 — A failure
Tell me about a time you failed. What happened, and what did you do about it?
```hint Own your part
Choose a real failure with consequences you can state, and spend most of the answer on what you did afterwards and what you changed.
```
#### What This Part Should Cover
- A genuine failure and its impact, without shifting blame
- The immediate actions that limited the damage
- Lasting changes to your own behavior or to the team's process, and evidence that they worked
### What a Strong Answer Covers
- STAR structure, with a brief situation and most of the time on actions and results
- Specific, quantified results where possible
- Clear personal ownership and sound judgment across all three stories
- A different example for each question rather than one project retold
- Reflection that shows lessons applied later
### Follow-up Questions
- Looking back at the complex project, which decision would you reverse, and why?
- What would the other person in your conflict say about how you handled it?
- How did you know that the changes you made after the failure actually worked?
- How did you keep stakeholders informed while the complex project was at risk?
Overview: Three hiring-manager behavioral questions: describe your most complex project, a conflict you resolved, and a failure you owned. Answers are judged on STAR structure, personal ownership, concrete and measurable results, a fair account of other people's views, and lessons that were actually applied later.
Read the full Uber Software Engineer interview experience this question came from