Practice this question in a realistic, spoken behavioral interview.
Question
Tell me about a time when you took the lead on a project or initiative without being formally asked.
What makes this question hard is that informal leadership has to fit alongside formal leadership, not replace it. Pick a story where no one assigned you ownership but the problem still needed someone to move it forward. Cover why the work was not already owned, how you got buy-in from people you did not manage, what authority you did not have, and what changed because you stepped in.
What Makes Informal Leadership Credible
A credible story shows leadership without any borrowed authority behind it:
You spotted a problem before it became assigned work: The story should start with a gap, risk, inefficiency, or opportunity others had not yet owned.
You got permission or buy-in when it mattered: Informal leadership is not taking over. Show how you brought people with you.
You created clarity: Good examples include a plan, doc, prototype, meeting, checklist, migration path, or decision record.
You executed, not just suggested: The story should move from observation to shipped change.
You improved the team beyond yourself: The outcome should make work easier, safer, faster, or clearer for others.
Where This Answer Usually Goes Wrong
Stepping on the actual leader: If there was a tech lead or manager, your leadership has to fit alongside theirs, not replace them.
Visibility without value: Driving a meeting that no one needed is not leadership. What counts is the impact, not the airtime.
The "I just took charge" framing: Without team buy-in, taking charge comes across as overreach.
Initiative that created cleanup work: Leadership that someone else has to undo afterward leaves the wrong impression.
A story with no resistance: If no one pushed back at any point, the leadership probably was not real.
How This Answer Changes by Level
Informal leadership scales with how many people you influenced and how durable the change was:
Scroll
Target level
Expected initiative
What "took the lead" looks like
IC3 / IC4
Spotted a tooling problem and fixed it for your team
Built it, documented it, got two or three teammates to use it
IC5
Identified an unowned project and pulled it together
Wrote the design, got buy-in across the team, owned the rollout
IC6 / IC7
Saw a strategic gap and made the case for an investment
Wrote a proposal, secured headcount or budget, restructured how something is done across teams
At staff+ levels, "I noticed a bug class and fixed it" is the wrong scale. The expected story is "I noticed our reliability story was incoherent across teams, wrote the case for a platform investment, and got the org to commit to it."
What Counts as "Taking the Lead"?
This does not have to be a six-month, company-wide epic. Leadership shows up on smaller, high-impact scales:
Fixing a broken process: Noticing that the team's deployment is slow and manual, then researching, proposing, and implementing an automated CI/CD pipeline.
Championing a new technology: Realizing a new library or tool could solve a recurring problem for the team, building a proof-of-concept, and leading the adoption effort.
Improving team knowledge: Seeing engineers struggle with a complex part of the codebase, then writing documentation or running a lunch-and-learn to share what you know.
Addressing unowned problems: Identifying a source of technical debt or a recurring class of bug that isn't on any official roadmap and organizing a small team to fix it.
The common thread is that you started it. It was not assigned to you.
How to Build the Story
Use the story structure to make the transition from observation to action to influence clear.
Situation
Set up the status quo and the cost of leaving it alone. Initiative is more credible when the problem was visible before anyone assigned it.
Example: "Our engineering team had a manual, stressful release process that involved a 25-step checklist in a text document. It was prone to human error, and every release took a senior engineer half a day to complete."
Task
This part is different from a normal STAR story. Your "task" was not assigned. It was self-defined. State the goal you created for yourself.
Example: "There was no official project to fix this, but I saw the negative impact on our team's morale and velocity. I set a personal goal to automate this entire process to make our releases fast, reliable, and stress-free."
Action
Detail the steps you took to bring the idea to life.
Initial research and proposal: "I spent a weekend researching CI/CD practices and built a proof-of-concept using GitHub Actions that automated the first few steps of our process."
Gaining buy-in: "On Monday, I did a 10-minute demo for my manager and two senior engineers. I didn't ask for permission; I showed them what was possible. I focused on the benefits: faster releases and freeing up senior engineer time."
Leading the effort: "With their support, I led a small tiger team of two other engineers. I wrote a project plan, broke down the work into tickets, and we dedicated a few hours each week to building out the full pipeline."
Result
Quantify the impact of your initiative. Show the before and after.
Example: "We replaced most of a 4-hour manual checklist with an automated deployment flow that handled the repetitive steps and left a shorter human review. Releases became less stressful and easier to do during business hours. The project also gave me a concrete example of senior-level ownership in my next performance review."
Answer Comparison
Claim Version
"I always take the lead. I'm a very proactive person. For example, I saw a way to improve our team's documentation and I just did it."
This version claims initiative but gives no scene. There is no problem, no action, and no evidence that anything changed for the team.
Initiative Story
(S) "When I joined my last team, onboarding for new engineers was rough. Documentation was scattered across outdated wiki pages, and it took a new hire almost three weeks to get their development environment set up and ship their first piece of code. It was a drain on both the new hire and the assigned mentor.
(T) There was no official ticket to fix this, since everyone was busy with feature work. I decided to improve the onboarding process with a practical goal: make the first week less confusing and reduce the mentor time spent on repeated setup issues.
(A) I started by being the new hire myself. I went through the setup process and documented every pain point and confusing step. I used this research to write a single onboarding guide in our documentation system. I also wrote a one-click setup script that automated installing dependencies and configuring the local environment. I presented the guide and script at our weekly team meeting and showed how it could save us dozens of hours a year.
(R) The next two engineers who joined the team had their local environments running on their first day and needed fewer repeated setup sessions with their mentors. One of them still hit a machine-specific dependency issue, which we added to the guide. My manager shared the guide with two neighboring teams, and they used it as the starting point for a broader onboarding cleanup."
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