Senior Quant Trader – HFT/Crypto

About Our Client

Our client is a high-performance trading firm of 120 people — primarily engineers, traders, and quants — focused on high-frequency trading and responsible for ~1% of global crypto trading volume. They are intentionally unconventional:

  • Founded by self-taught technologists, not traditional HFT alumni

  • Fully bootstrapped — no VC ownership, equity belongs to the team

  • Headquarters in Bratislava rather than traditional hubs like London or Amsterdam

Culture

Our client believes work should be purposeful and fulfilling.

Integrity is non-negotiable

They value ethical execution above all else. Profit matters, but never at the cost of doing the right thing. Their ethos: be the good guys in the market.

Radical candor

No politics, no corporate games, no fluff — transparency and honesty lead to better decisions.

Trust & transparency

Internally, they operate with radical transparency across compensation, bonuses, and even trading strategies. Trust fuels performance.

The Opportunity

Our client is seeking a trader with HFT or MFT experience who can bring differentiated knowledge and help shape the firm’s next generation of trading strategies.

In this role, you will:

  • Originate new trading ideas

  • Design and refine trading strategies

  • Identify inefficiencies and new sources of alpha

  • Execute strategies and manage risk

  • Collaborate closely with world-class quants and engineers

The existing team largely comes from STEM backgrounds (mathematics, theoretical physics, computer science) from institutions such as Berkeley, ETH, and MIT, with engineering talent from companies like Google, Meta, and Amazon.

Your trading experience has the potential to drive outsized impact — and share significant upside.

Requirements

  • 3+ years of HFT or MFT trading experience

  • Strong foundations in probability, statistics, and quantitative analysis

  • Scientific mindset and structured problem-solving skills

  • High humility and clarity in communication

  • Ownership mindset — high agency and end-to-end accountability

  • Proficiency with quantitative tools of your choice

  • Willingness to relocate or spend ~50% of time in Bratislava

Nice-to-Haves

(Not required, but advantageous)

  • Experience trading crypto markets

  • Regression modelling experience

  • People leadership experience

  • Prior exposure to HFT infrastructure and modeling

Interview Process

  • Take-home problem-solving challenge focused on probability, logic, and math

  • Quant interview with senior quants assessing problem-solving and cognitive ability

  • Decision-making games designed to evaluate reasoning under uncertainty

  • Final deep-dive with senior leadership into your quantitative and trading background

Compensation & Incentives

Equity

Five-year equity grants to ensure meaningful alignment and upside.

Cash & Bonus

Competitive cash compensation with discretionary twice-yearly performance bonuses.

Fund Investment

Opportunity to invest in the firm’s proprietary fund (launched in 2017) with a strong performance track record — typically reserved for partners and employees.

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