DeFi Quant Trader Intern (Credit) - Brussels

As a DeFi Quant Trader Intern on Keyrock's Credit desk, you develop quantitative risk models and algorithmic trading tools for decentralized lending and credit protocols. Based in Brussels (London possible), you spend six months building practical skills in on-chain risk modeling, yield optimization, and protocol analysis alongside experienced traders and analysts in a global, remote-first team of 200+ people.

What you'll do

• Develop and refine quantitative risk models to assess protocol health, collateralization ratios, liquidation risks, and smart contract vulnerability exposure across DeFi credit platforms
• Build Python-based tools and algorithmic models to analyze real-time yield curves, liquidity pool depth, and funding rate arbitrage across lending and borrowing protocols
• Query on-chain telemetry, EVM event logs, and DEX/lending protocol data using SQL, Subgraphs, and Python to generate actionable insights for credit positioning and risk allocation
• Perform quantitative forensics and stress testing on emerging lending primitives, liquid staking protocols, and structured credit products prior to capital deployment

What you bring

• A strong code-first foundation in Python and SQL (with Git proficiency) for handling on-chain or EVM event data
• Understanding of smart contract mechanics and DeFi primitive math, such as automated market makers, lending pool utilization curves, and liquidation thresholds
• A rigorous background in a quantitative field (Math, Physics, Computer Science, Finance, or Engineering) with a systematic and trading mindset
• Hands-on experience interacting with decentralized lending protocols such as Aave, Morpho, Compound, or Maker/Endgame, or with yield aggregators and credit markets

Nice to have

• Familiarity with Rust, Solidity, or Foundry
• Experience with specialized credit risk models and backtesting frameworks

What we offer

• A six-month paid internship with accommodation provided for all or part of the duration
• The opportunity to learn digital assets and blockchain from a comprehensive ecosystem perspective
• Work from one of Brussels' newest and most advanced office spaces
• A global, collaborative and tech-driven environment
• Autonomy and impact through a flat structure where you contribute ideas from day one

About Keyrock

Keyrock is a global digital assets company that has provided liquidity across 80+ centralized and decentralized exchanges since 2017. With 200+ people across 40+ nationalities and hubs in Brussels, London, Paris and New York, Keyrock runs a full spectrum of capital markets businesses including market making, high-frequency trading, options, OTC, DeFi trading desks, advisory, and asset management. The company is building agentic investment banking capabilities for digital finance.