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.