Mid-level to senior

Sefism.

Chapter 01

Seniority as scope, with a clear bar

Seniority is how much ambiguity and responsibility you handle without being told what to do. Find out what the next level means where you work.

Scope

What
The size of the problems you are trusted with and the area your decisions affect: a task, a feature, a system, a team or several teams.
Why
Levels are defined mostly by scope. Growing means handling larger scope reliably, not doing more tasks of the same size.
Example
Mid level: deliver a well-defined feature. Senior: own the checkout service, decide what to build next quarter and keep it healthy.

Watch out

Equating seniority with years of experience or knowing more frameworks.

Handling ambiguity

Also called ambiguity

What
Taking a vague problem, such as "checkout feels slow", and turning it into clear goals, questions, options and a plan without someone breaking it down for you.
Why
Senior engineers are given problems, not tickets. How well you create clarity is one of the strongest signals of the next level.

Watch out

Waiting for a detailed spec, or starting to code before you know what success looks like.

Impact over output

What
Judging work by the difference it made to users, the business or the team, rather than by the amount produced, such as tickets closed or lines written.
Why
Promotion discussions ask what changed because of your work. Two engineers with equal output can have very different impact.

Watch out

Picking easy, low-value tickets to look busy while an important problem waits.

Level framework

Also called career ladder, engineering ladder, leveling guide

What
A company document describing each engineering level through expectations across areas such as technical skill, delivery, collaboration and impact.
Why
It is the bar promotion decisions are measured against. Reading it turns vague ambition into specific behaviours you can show.

Watch out

Never reading it, then being surprised by what the promotion committee asks for.

Gap to the next level

Also called gap analysis

What
An honest comparison of your recent work against each expectation of the next level, noting where you already have evidence and where you have none.
Why
It shows exactly which kinds of work you need, so you can ask for them instead of hoping they arrive.
Example
Strong on delivery and code quality; no evidence of leading a design or mentoring. Ask to lead the next small design and mentor the new joiner.

Written expectations

What
A short document agreed with your manager listing what you need to show for the next level, with concrete examples of work that would count.
Why
Verbal agreements fade and managers change. Written expectations protect you and make progress easy to review.

Watch out

Accepting "just keep doing what you are doing" as a plan.

Monthly progress check-ins

Also called progress check-ins, monthly check-in

What
A regular slot, often part of one-on-ones, to review evidence against the written expectations and adjust what to work on next.
Why
Frequent small corrections beat one surprise at review time, and your manager builds the case alongside you.

Performing at the next level

What
The common rule at many companies that you are promoted after you have consistently done the work of the next level for a period, often six months or more.
Why
It explains why promotions lag behind growth, and why you need to take on next-level scope before the title arrives.

Watch out

Waiting for the title before taking on bigger responsibilities.

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