Job Description

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.

Requirements

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.