Senior Proprietary Trader (Spot/Options)

About G20 Group 

The G-20 Group is a pioneer in Quantitative Trading systems in cross-asset markets. Headquartered in Switzerland, we operate at the intersection of Quantitative Research, Software Engineering and Trading. The team combines a startup mindset with extensive experience in proprietary Trading, Technology and Quantitative Finance. 

Role Overview 

We are seeking an experienced Senior Proprietary Trader to identify, risk-manage, and execute directional trading opportunities in linear and derivative markets. You will run a defined risk book (or multiple strategies) with significant autonomy, focusing on repeatable edge, disciplined risk management, and strong execution. 

Key Responsibilities 

Idea generation & trade construction 

• Develop discretionary trade theses using macro, fundamentals, positioning/flows, technicals, and/or volatility signals. 

• Structure trades in spot and/or options (directional, relative value, volatility, event-driven, carry). 

Execution 

• Execute trades efficiently with strong attention to market microstructure, liquidity, slippage, and order types. 

• Work with brokers/venues/OTC counterparties as applicable; maintain execution hygiene and best practices. 

Risk management 

• Own daily risk: position sizing, stop/exit discipline, scenario analysis, hedging, and tail-risk thinking. 

• Maintain and respect hard risk limits (VAR/expected shortfall, Greeks, drawdowns, concentration, liquidity). 

Performance & review 

• Track P&L drivers, hit rate, expectancy, drawdowns, and attribution by strategy and regime. 

• Conduct post-trade reviews, refine playbooks, and document frameworks for repeatability. 

Collaboration & infrastructure 

• Partner with risk, operations, compliance, and technology to ensure clean trade capture and controls. 

• Contribute to improving tooling (dashboards, alerts, execution workflows) and market intelligence. 

What Success Looks Like 

• Demonstrates a clear, defensible edge with consistent decision-making and strong process discipline. 

• Produces attractive risk-adjusted returns while staying within limits and minimizing operational issues. 

• Communicates positions, risks, and scenarios crisply; maintains a well-documented trading playbook. 

Risk & Controls Expectations 

• Operate within predefined constraints (e.g., max gross/net exposure, Greeks limits, max daily/weekly drawdown). 

• Maintain a robust trading journal and risk notes for significant positions. 

• Escalate material risk events promptly and proactively. 

• Degree in Quantitative Finance, Mathematics, Computer Science, Statistics, or a related quantitative field. 

• 5+ years professional trading experience (prop, hedge fund, family office) OR demonstrable audited track record. 

• Proven ability to generate and manage discretionary P&L in spot and/or options. 

• Strong practical understanding of: 

• Market structure, liquidity, execution tactics 

• Risk management (drawdowns, stress/scenario testing, hedging) 

• For options: volatility, skew, term structure, Greeks, payoff engineering 

• Highly disciplined, calm under pressure, and accountable for outcomes. 

• Strong written and verbal communication; ability to explain trades and risks clearly. 

Preferred / Desirable Experience 

• Experience across multiple regimes (risk-on/off, crisis, high/low vol). 

• Event-driven options trading (earnings, macro releases) or structured volatility strategies.  
  Ability to use data tools (Excel, Python, SQL) for research, journaling, and analytics. 

• Familiarity with systematic overlays (signals to inform discretionary timing). 

Deadline for application: December 19, 2025 

Location and Right to Work: This role will be based in our Zurich office. Only candidates who possess the pre-existing right to work in Switzerland need apply.  

Join G-20 and be a part of a team that is at the forefront of financial markets, driving innovation and excellence in the sector.