DeFi Quant Trader Intern (Credit)

Join Keyrock as a DeFi Quant Trader Intern on the Credit desk. Since 2017, Keyrock has been a change-maker in digital assets, providing liquidity across 80+ centralized and decentralized exchanges. You'll work directly with quant traders and credit strategists to build quantitative risk models, automate yield harvesting, analyze on-chain liquidity pools, and evaluate DeFi protocol mechanics across decentralized lending platforms and credit facilities.

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

• 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 such as Math, Physics, Computer Science, Finance, or Engineering with a systematic and trading mindset
• Ability to model yield dynamics, credit risk, backtest strategies, and model protocol insolvency scenarios
• Hands-on experience interacting with decentralized lending protocols such as Aave, Morpho, Compound, or Maker/Endgame, yield aggregators, or credit markets

Nice to have

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

What we offer

• A 6 month paid internship with accommodation provided for the entirety or part of it
• Based predominantly in Brussels, with the possibility for a selected candidate to be based in London provided at least 1-2 months of the onboarding period is spent in Brussels with the rest of the interns cohort
• Working from one of Brussels' newest and most advanced office spaces
• A global, collaborative and tech-driven environment with autonomy to contribute your ideas from day one
• Clear learning goals, dedicated guidance and regular feedback throughout the internship
• The opportunity to learn about digital assets and blockchain from a comprehensive view of the entire ecosystem

About Keyrock

Keyrock is a global, remote-first team of 200+ people across 40+ nationalities with hubs in Brussels, London, Paris and New York. The company runs a full spectrum of capital markets businesses across centralized and on-chain venues: market making, high-frequency trading, options, OTC, DeFi trading desks, advisory, and asset management. Keyrock was backed by SC Ventures in its Series C funding round.