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Live vacancy · Ref KQ-C9AECE

Junior Quant Developer

A fast-growing quantitative trading firm · London, United Kingdom · first seen today

What is the Junior Quant Developer role in London, United Kingdom?

A fast-growing quantitative trading firm is hiring a Junior Quant Developer in London, United Kingdom. It is a Graduate level quant developer seat, and the advert asks for C++, KDB+/q, Linux, Python.

Indicative base salary

£85k – £120k

KnowQaunt benchmark, not an advertised figure

Median for Quant Developer

$175k – $250k

1 advertised ranges

Seniority

Graduate

Quant engineering

Status

Open

Ref KQ-C9AECE

Indicative base range modelled from the Quant Developer junior developer benchmark for London. Not an advertised figure.

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Based on 1 live vacancies across 1 employer, as observed on 6 September 2026. Counts come from employer-operated job boards we read directly; classification is rule-based and inspectable.

About the employer

This vacancy is with a fast-growing quantitative trading firm. We hold the employer's identity confidential until we have spoken with you about the role, so the advert below is written by our research team from the facts stated in the live posting — never copied from it.

What you would do

  • ·Own quant developer work end to end, from idea to production.
  • ·Work directly with traders, researchers and engineers on the same P&L.
  • ·Measure, monitor and defend the performance of what you build.
  • ·Publish your reasoning so decisions can be checked by other people.

What they are asking for

  • ·Masters in a quantitative discipline, or equivalent demonstrated ability.
  • ·Practical experience with C++, KDB+/q, Linux, Python, SQL.
  • ·Comfort with probability, statistics and precise reasoning under time pressure.
  • ·Evidence of shipping work that other people relied on.

Skills in this advert

C++KDB+/qLinuxPythonSQLStatistics

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Research behind this market

Pay benchmarks, market data and career research relevant to this vacancy.

Quant Developer salariesAdvertised pay ranges from our live vacancy datasetQuant jobs in LondonHiring firms, pay and role mix in this marketCareer paths into quant developerWhere people come from and where they go nextC++ demandHow often employers ask for it, and what it pays

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