In [8]: # career_ladder.ipynb
The IC ladder rewards measurable scope, technical excellence, and influence. We describe each level with promotion milestones, compensation bands (T2 baseline), and typical promo cadence.
L3 · 0 - 2 years
Execution under guidance
$100k - $140k
TC $125k - $200k
promo: 12 - 18 months
Milestones
L4 · 2 - 4 years
Independent delivery
$140k - $180k
TC $200k - $300k
promo: 18 - 24 months
Milestones
L5 · 5 - 8 years
Technical leadership
$180k - $230k
TC $280k - $450k
promo: 2 - 3 years
Milestones
L6 · 8 - 12 years
Org-level impact
$230k - $290k
TC $380k - $600k
promo: 3 - 5 years
Milestones
L7 · 12 - 18 years
Company-level impact
$290k - $380k
TC $500k - $1M+
promo: 4 - 6 years
Milestones
L8+ · 18+ years
Industry-level impact
$400k - $600k+
TC $700k - $2M+
promo: Rare
Milestones
40%
Measurable revenue, user growth, or cost reduction from your ML work
30%
Code quality, architecture decisions, novel problem-solving
20%
Number of teams or products that depend on your work
10%
Growing others and improving team capabilities
Q.How long does it take to become a staff ML engineer?
▸A.Most engineers reach L6 (staff) in 8 to 12 total years of experience. At fast-moving employers (T1 frontier labs, T3 AI unicorns), exceptional performers can reach L6 in 6 to 8 years. Staff promotion is highly competitive: at T2 hyperscalers fewer than 20 percent of senior engineers ever reach L6.
Q.What is the biggest salary jump in the ML engineer career ladder?
▸A.L5 to L6 (senior to staff) is the largest single jump in absolute terms: roughly $50k - $80k base increase and often a doubling of equity grants. Total comp can jump $100k - $200k as equity refreshes at L6 are substantially larger. The L6 to L7 jump is even larger in TC for the few who make it.
In [ ]: # reader_questions.ipynb
Write in. A person opens every message, and the ones we can answer come back with the survey release or the public disclosure the number is drawn from, stated plainly enough that you can go and check it. We put no clock on a reply. Should an answer be worth reading twice we might set it out here stripped of anything identifying, and we will write and ask you before that happens.
Out[ ]:
Treat everything on this site as compensation reference assembled from published surveys and public filings, not as financial advice and not as a benchmark any single negotiation should be anchored to. Your own offer turns on the employer, the level it is pitched at, the equity instrument behind it and the market on the day it is made.