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Research Engineer

QFEXLondon, ENG EC1A, GB Full Time
Compensation
$100,000–$150,000/year

Job Description

Research Engineer


How Markets Should Be

Traditional financial markets are broken. We are fixing them.

QFEX is the first perpetual futures exchange to allow 24/7, high leverage trading on traditional financial assets. 

Our vision: this kind of exchange will replace the entire $100bn TradFi exchange, clearing and brokerage industry

Our mission: make QFEX that exchange.

We were founded by Cambridge Maths duo Annanay Kapila and Joshua Wharton, who previously worked at Tower Research Capital and Citadel, respectively. The team also includes former staff from Jane Street, Optiver and Jump Trading.

QFEX has raised $XXm from a group of investors including Y Combinator, an early investor in companies like Coinbase, Reddit and Monzo.

What You’ll Do

Reliability & performance
Design fault-tolerant, low-latency, always-available services; write load tests and chaos suites; tune until p99 is boring.

Research
Set up and carry out research related activities relating to exchanges and microstructure.

Technical direction
Evaluate tools, set coding standards, and guide architectural decisions as we scale.

Culture & hiring
Share and receive new knowledge and experiences, set impeccable cultural standards, and help interview the next engineers.

What You’ll Need

  • A STEM degree from a University that is highly ranked in your home country (at the level of Oxbridge/ Imperial in the UK, HYMPS in the US, or a top IIT in India).
  • Experience with a Python and common data science libraries like pandas and numpy.
  • 3+ years building and working on real-time production Exchanges or HFT Systems.
  • The desire to create and impose a responsible culture of tests, metrics, and graceful degradation.
  • Impeccable levels of trust in yourself and others, including the ability to make decisions in minutes, not days.

Bonus points

  • Fintech, exchange, or low-latency experience.
  • Experience with a high-performance language like Rust, C or C++.
  • Deep Kubernetes or infrastructure-as-code experience.

Benefits

  • Option to sponsor your visa to work in the UK (after 1 year) New York City office, if desired.
  • Lunch allowance and regular company events.
  • The ability to grow alongside some of the best minds in fintech, as well as set standards and culture.
  • 25 days’ holiday + bank holidays.

Interview Process

  1. 2x Founder call (30 min) – learn about our vision, share your story.
  2. 2x Technical (1 hour) – verbal questions and a data science task.
  3. Offer – we decide fast (usually within 24 h).

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Job Details

Category
Aerospace Engineering
Employment Type
Full Time
Location
London, England, GB
Posted
Mar 26, 2026, 03:41 AM
Listed
Mar 24, 2026, 04:26 PM
Compensation
$100,000 - $150,000 per year

About QFEX

Part of the growing frontier tech ecosystem pushing the edges of what's possible.

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Research Engineer
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