The first three months in a new job shape how colleagues see you long after — and set up (or undermine) your case at your first performance review. Here's a simple framework to get it right.
The 30-60-90 framework
- First 30 days: Listen more than you speak. Learn the real (not just documented) processes, map out who actually makes decisions versus who holds the title, and ask questions rather than assuming how things work.
- Days 30–60: Start contributing visible small wins within your role — don't wait for a big project to prove yourself. Actively request feedback rather than waiting for a formal review to find out how you're doing.
- Days 60–90: Take ownership of something meaningful, even modestly scoped, and bring at least one improvement idea backed by what you've observed — not criticism of "how it used to be done."
The mistakes that undo a strong start
The most common early misstep is criticising existing processes before understanding why they exist — what looks inefficient from the outside often has a reason rooted in a past problem you weren't there for. The second is overpromising: committing to timelines or outcomes before you understand the team's real capacity and constraints. The third is failing to ask questions out of fear of looking inexperienced, which usually costs far more credibility later when a preventable mistake surfaces.
Build relationships across levels, not just up
New hires often focus energy on impressing their direct manager and overlook peers and more junior colleagues — but those are the relationships that actually make day-to-day work easier, and they shape your reputation just as much. Take time to understand what your colleagues need from you before assuming you know how to help.
Document as you go
Keep a simple running note of wins, numbers and feedback from your first 90 days. It's the fastest way to prepare for your first performance review, and it becomes the raw material for your next CV update — long after the details would otherwise be forgotten.
Key takeaways
- Use the first 30 days to observe and understand before proposing changes.
- Deliver small, visible wins early rather than waiting for one big project.
- Keep a running log of achievements from day one — it powers your next review and your next CV.
