Language · Rising
C++
Why does C++ matter in quant?
C++ is the dominant production language in quantitative trading. It is used wherever latency matters: order gateways, matching-engine clients, market-data handlers and the execution path. Modern C++ depth, not legacy familiarity, is what firms assess.
Trading firms interview C++ far more rigorously than general technology employers. Expect questions on memory layout, cache behaviour, move semantics, lock-free structures and what the compiler actually emits. Depth in a narrow set of modern features beats breadth across the standard.
Demand right now, measured
High confidencen=306Live vacancies asking for it
306
Share of quant roles
34.4%
Core quant vacancies mentioning it
Quant signal
8.28×
Versus other roles at the same firms
Firms asking
17
Across 13 cities
Based on 306 vacancy mentions across 17 employers. Counts come from employer-operated job boards we read directly; classification is rule-based and inspectable.
Which roles ask for it
Percentage of that role's live vacancies mentioning C++.
- Software engineer29% (125)
- Quant Researcher55% (68)
- Quant Trader24% (29)
- Machine learning researcher42% (25)
- HFT / Low-Latency Engineer70% (19)
- Quant Developer48% (14)
- Quant Analyst40% (4)
- Data engineer7% (1)
Roles requiring it
Where demand concentrates
Strategies it serves
- High-frequency trading · Microseconds to seconds
- Market making · Continuous
Backgrounds this comes from
- Systems engineering
- Game engines
- Exchange and infrastructure work
Other skills
Last updated September 2026 · KnowQaunt 2026.1
Methodology
Figures are expressed as annual total compensation (base salary plus expected performance bonus) in the reference market's local currency, converted from a US dollar base. They describe typical market ranges rather than any individual offer, and exclude sign-on payments, deferred equity and carried interest. Portfolio-manager figures reflect formulaic profit-share arrangements and are therefore far more dispersed than any other role.
KnowQaunt 2026.1 · Updated September 2026
These are indicative ranges pending first-party verification. They will be replaced by verified submissions as the Quant Salary Index dataset builds.