Leaving an engineering team well is a small craft most engineers learn the hard way. The version that goes badly leaves the team scrambling for context they didn't know they needed. The version that goes well leaves a queryable trail that your replacement can ramp on for months. Same two weeks of effort, very different outcome.
Week 1: inventory what only you know
The first task is the uncomfortable one: list everything you currently know that nobody else does. The half-deployed migration. The fact that the staging database has a weird quirk. The reason the rate limiter is configured the way it is. The team member who needs slack-side context before pushing back in reviews.
Most of this lives in your head. The point of the next two weeks is to externalize it.
Week 1: write the decision archive
For each major surface you own, write a one-page decision record: what you decided, why, what you considered and rejected, what would change the decision. This is the document your successor will reread three months from now when they're tempted to undo your work and you're not there to explain.
Aim for 5-8 decisions per surface. Bigger than that, you're listing minutiae. Smaller, you're being lazy.
Week 1: do live walkthroughs, recorded
Schedule 45-minute walkthroughs of each surface with the engineer taking it over. Record them. Walking the code is more valuable than writing about it; the recording gives the successor a re-watchable artifact.
Cover: where the surface starts and ends, the three things most likely to break, who the upstream and downstream stakeholders are, the runbook entries that are most stale.
Week 2: transfer authority explicitly
Authority handoff is the part teams forget. For each decision you currently make — what gets prioritized, what gets reverted, what gets escalated — name the new decision-maker in writing, in a place the team can find. Otherwise the question "who decides about X now" generates two weeks of confusion after you're gone.
Send the authority transfer as a message in the team channel, not a DM. Public transfer is durable; private transfer evaporates.
Leave Behind a Queryable Record
StandIn preserves your decisions, rationale, and ongoing work as a queryable archive — so context survives the offboarding.
See the Workflow →Week 2: clear your open threads
Walk your DMs and reply to every open thread. Either resolve it, hand it off explicitly, or close it. Engineers who leave with 40 open DMs leave their team to triage those DMs for a month.
Same for review queues, comment threads, open PRs. Either merge, close, or transfer ownership. Don't leave orphans.
Last day: the final wrap
One document, the day you leave, summarizing: surfaces owned and who owns them now, decisions archive locations, open questions you couldn't resolve, the three things your successor should know in their first week. Post it. Pin it.
This is the document the team reads in six weeks when they're stuck and trying to remember where you wrote things down.
Common failure modes
Failure: leaving slowly. A two-week notice with reduced effort is worse than two intense weeks. Plan the offboarding work like a project; ship it.
Failure: oral handoffs only. Walkthroughs are great; they don't replace written records. Both, or the written record will fade fastest from the part you only said out loud.
Failure: documenting only successes. The decisions that didn't work out are the most valuable to leave behind. Future engineers will rediscover those mistakes if you don't write them down.
What to do tomorrow
If you're leaving in the next month, start the inventory today. The decision archive takes more time than you expect; the walkthroughs need calendar coordination. Two weeks is enough only if you start week one on day one.
Frequently asked questions
Should I document everything or just the critical things?
Document the things that, if forgotten, would cause real damage — security choices, contracts with other teams, the reasoning behind unusual configs. Skip the things that are obvious from reading the code.
What if my company won't give me time to offboard properly?
Negotiate for it explicitly. "I need the last week to be 80% documentation and walkthroughs" is a reasonable ask. If they refuse, do what you can and warn the team in writing that the offboarding is compressed.
Is it okay to delete personal notes when I leave?
Delete personal notes. Move team-relevant notes into a shared location first. The line is whether the next engineer would benefit from it.
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