About G-20 Group 

G-20 Group is a leading cross-asset trading firm active in delta-one and derivatives markets. Established in 2010, G-20 offers liquidity solutions, treasury management, and institutional advisory services. We are supported by an outstanding team of professionals, with a robust global presence in EMEA, Americas, and APAC. 

Role Overview

We are seeking a highly skilled and motivated Core C++ Developer to join our London team to further develop and maintain the proprietary, in-house trading engine.

We are seeking a candidate with a strong background in building large-scale low-latency systems. The role involves maintaining daily trading operations as well as developing scalable, high-performance code, optimizing system architecture and modularity to ensure seamless operations and functionality.

The ideal candidate will be self-driven, motivated, responsible and highly responsive, working independently to develop and improve the existing code base, while collaborating closely with diverse cross-functional teams of stakeholders and fellow developers. We are looking for someone with strong expertise in C++ programming, debugging, and system optimization, who is passionate about delivering practical, high-quality, PnL-focused solutions.

The primary focus for this role will be working on core engine components, including trading engines, pricing, market making strategies and underlying trading infrastructure.

Key Responsibilities

• Trading Engine Development: Develop the existing and new components within the trading engine while maintaining overall system design.
• Ownership of Engine Components: Grow into ownership of existing or newly developed trading engine components, such as pricing, market-making, hedging, etc.
• Performance Optimization: Continuously monitor and optimize trading engine performance.
• Systems Refactorization: Work on appropriate code modularization, versioning, deployment and test processes.
• Trading Infrastructure Development: Develop, improve and maintain overall trading infrastruc-ture, including reference and market data, trades and balance dissemination services.
• Trading Engine Operations: Ensure that day-to-day trading operations run smoothly.
• Collaboration with Trading: Work directly with the trading team to understand their needs and deliver appropriate solutions that support the firm's strategic goals.

Education: Bachelor’s or Master’s degree in computer sciences, Computer Science, Engineering, or a related field.

Experience: At least 3+ years or more of experience in software development, ideally in a high-paced trading environment.

Personal Qualities:

• Self-driven, motivated, responsible and highly responsive individual.
• Mature enough to work collaboratively on the existing code base.
• Ability to work effectively in a fast-paced trading environment.
• Strong and tactful communication skills, both verbal and written.

Tech Skills:

• Proficiency in C++ (Cxx-17).
• Familiarity with Rust is a significant bonus, Python desired.
• Proficiency in Unix based systems.
• Experience of cloud-based platforms (AWS).
• Experience with real-time data messaging (websockets, Redis).
• Experience with CI/CD tools, Jenkins, Supervisor and docker.
• Fast problem-solving skills, combined with attention to details.

Preferred / Desirable Experience:

• Familiarity with low latency and high throughput systems.
• Experience in the finance or cryptocurrency sectors.
• Experience with high-paced production or trading environments.

Location and Right to work: This role will be based in our London office. Only candidates who reside in the UK and possess the pre-existing right to work in the UK without needing company sponsorship 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.

About G-20 Group 

G-20 Group is a leading cross-asset trading firm active in delta-one and derivatives markets. Established in 2010, G-20 offers liquidity solutions, treasury management, and institutional advisory services. We are supported by an outstanding team of professionals, with a robust global presence in EMEA, Americas, and APAC. 

Role Overview 

We are seeking two highly organized, discrete, and proactive Executive Assistants: one at Full-Time (100%) and another at Part-Time (60%) to provide comprehensive administrative support to our executive leadership team. In this role, you will work closely with the CEO and Deputy-CEO along with other leaders to manage their schedules, coordinate meetings, handle correspondence, and ensure that administrative and organizational matters are efficiently managed. 

You will act as a key point of contact for internal and external stakeholders, ensuring that communication flows seamlessly and that priorities are met in a timely manner. The ideal candidate is an experienced, dependable, detail-oriented professional who thrives in a dynamic environment and can anticipate needs before they arise. 

Key Responsibilities 

• Provide administrative support to members of the Executive team.  
• Manage calendars, schedule and coordinate meetings, and organize appointments. 
• Handle correspondence, prepare documents, and manage communication flows on behalf of executives. 
• Arrange and coordinate travel plans, itineraries, and expense reporting. 
• Support with payment of invoices, reimbursements, and other administrative or financial tasks as required. 
• Prepare meeting materials, and ensure follow-up on action items. 
• Liaise with internal departments and external partners to ensure smooth coordination of executive activities. 
• Maintain confidentiality and handle sensitive information with the highest degree of professionalism. 

• 5+ years’ experience as an Executive Assistant, Personal Assistant, or in a comparable administrative role, with a strong preference for the financial/trading sector. 
• Excellent organizational and multitasking skills with strong attention to detail.  
• High level of integrity, discretion, and professionalism.  
• Strong communication skills (both written and verbal) in English.  
• Proficiency in MS Office and common collaboration tools (e.g. Excel, Word, Outlook). 
• A proactive, hands-on attitude and the ability to anticipate needs and take initiative. 

Preferred / Desirable Experience 

• Fluency in German is a strong plus; additional languages are an advantage. 
• Flexibility to adapt to changing priorities and schedules. 

Location and Right to work: We are hiring for our Zurich office with the expectation of the candidates being on-site. Only candidates who meet the requirements, live within commutable distance to Central Zurich and who possess the pre-existing right to work in Zurich without requiring company sponsorship need apply (Swiss national, B/C permit or equivalent).  

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. 

About G20 Group 

G-20 Group is a leading cross-asset trading firm active in delta-one and derivatives markets. Established in 2010, G-20 offers liquidity solutions, treasury management, and institutional advisory services. We are supported by an outstanding team of professionals, with a robust global presence in EMEA, Americas, and APAC.

Role Overview 

We are hiring a mid-level Portfolio Manager / Trader to own and operate market-neutral crypto strategies - primarily funding arbitrage, basis trades, calendar spreads, and cross-venue relative value - across centralized and decentralized venues. You will be responsible for day-to-day portfolio construction, execution, and drawdown control, working under a defined risk framework and supporting institutional SMA and fund mandates. This is a hands-on PM and trading role with clear ownership and room to grow.

Key Responsibilities 

• Run and manage market-neutral funding and basis books across CEX and DEX venues, primarily in majors and liquid alts.
• Own position sizing, hedging, leverage, and exposure management, maintaining strict market neutrality and drawdown discipline.
• Actively monitor funding regimes, futures curves, borrow costs, liquidity, and cross-venue dislocations; scale, rotate, or shut down risk as conditions change.
• Partner closely with risk, operations, and engineering to improve OMS/EMS workflows, automation, alerts, and real-time risk monitoring.
• Maintain an institutional-grade process: pre-trade controls, post-trade analysis, reconciliations, documentation, and audit readiness.
• Contribute to the evolution of G20’s market-neutral platform, including strategy refinement and new opportunity assessment.

• Degree in Quantitative Finance, Mathematics, Computer Science, Statistics, or a related quantitative discipline; top-tier university preferred.
• 3+ years of hands-on experience in crypto derivatives, market-neutral, or relative-value trading.
• Demonstrated experience running funding-rate and/or basis strategies with real capital and disciplined risk management.
• Strong understanding of perpetual mechanics, futures term structure, liquidation dynamics, and margin optimization.
• Comfortable working with execution systems and data; able to collaborate effectively with quants and engineers.
• Experience with institutional custody and collateral frameworks (e.g. Fireblocks, Copper, Anchorage, or equivalent).
• Calm under volatility, process-driven, and comfortable operating within defined risk limits.
• Clear communicator with the ability to explain strategy, risk, and performance to internal stakeholders.

Preferred / Desirable Experience 

• Experience in stat arb, volatility arbitrage, trend-following overlays, or multi-strategy market-neutral pods.
• Prior exposure to regulated, audited, or institutional client environments.
• Familiarity with both CeFi and DeFi market structure.

Location and Right to Work: This role will be based in New York, Zurich or London. Only candidates who reside in and possess the pre-existing right to work in the US, Switzerland or the UK without needing company sponsorship need apply. Trading access and setup will align with regulatory, exchange, and operational constraints.

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. 

About G-20 

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 

As an Options Trader at G-20 Group, you will be responsible for managing and optimizing options trading strategies across various markets with a focus on US trading hours. You will work with a team of quantitative analysts and developers to implement trading models and make informed, data-driven decisions. This role offers a unique opportunity to contribute to the growth of a highly successful trading firm in a fast-paced and dynamic environment. 

Key Responsibilities 

• Develop, implement, and optimize options trading strategies across global markets. 
• Analyze market data and leverage quantitative models to identify profitable trading opportunities. 
• Monitor and manage risk exposures, ensuring strategies align with risk management protocols. 
• Collaborate with data scientists, quants, and other traders to refine and improve trading algorithms and strategies. 
• Stay up-to-date on market trends, news, and economic events that could impact options prices and volatility. 
• Execute trades and manage positions effectively, ensuring optimal execution and liquidity. 
• Contribute to the continuous improvement of G-20 Group’s trading systems and technologies. 

• Degree in Finance, Mathematics, Physics, Computer Science, Engineering, or a related field from a top-tier university. 
• Strong background in options trading with a solid understanding of the options market and strategies. 
• Proven track record of generating consistent profits (PnL >$2m for more than 3 years) 
• Experience with quantitative trading and the ability to apply data analysis to trading decisions. 
• Strong knowledge of financial markets, particularly options pricing, volatility, and risk management. 
• Exceptional analytical and problem-solving skills with the ability to make quick, data-driven decisions. 
• Excellent communication and teamwork skills, with the ability to collaborate effectively across teams. 
• A results-driven, proactive, and self-motivated approach. 
• Willingness to work an adjusted schedule covering US hours and some weekend coverage as required. 

Preferred / Desirable Experience 

• Proficiency in programming languages such as Python, C++, or similar (preferred). 

 

Right to work: This role can be based from our New York, Chicago or London offices. Only candidates who reside in and who possess the pre-existing right to work in the US or London without requiring company sponsorship need apply.  

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