Quantitative Developer (London)

G-20 Strategies AG; London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading financial technology firm in London seeks a highly motivated Python Quantitative Developer. Responsibilities include developing and optimizing trading systems, ensuring day-to-day operations, and implementing automated trading strategies. Candidates should have a Bachelor's or Master's in a relevant field and at least 2 years of experience in Python development. This role requires strong technical skills, problem-solving abilities, and the right to work in the UK.

Qualifications

• Minimum of 2 years of experience in python-based software development, ideally in a fast-paced trading environment.
• Experience with deployment and monitoring tools.
• Familiarity with real-time data messaging and Rest API frameworks.

Responsibilities

• Have ownership, support, and improve existing trading systems and their components.
• Continuously monitor and optimize trading engine.
• Design, implement and support automated trading strategies.

Skills

Python

Problem-solving skills

Attention to detail

Technical responsibility

Strong English language competency

Education

Bachelor's or Master's degree in Computer Sciences, Data Science, Engineering

Tools

Unix based systems

AWS

Redis

Supervisor

Grafana

Nagios

Postgres

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 looking for a highly motivated and skilled Python Quantitative Developer to join our team on a full-time basis. In this role, you will be responsible for developing and supporting our trading and market-making systems and working closely with traders and the development team. This work could range from working on core engine strategies to execution layer and data storage and dissemination infrastructure.

Key Responsibilities

• Have ownership, support, and improve existing trading systems and their components.
• Ensure that day-to-day trading operations run smoothly.
• Continuously monitor and optimize trading engine and associated systems.
• Design, implement and support automated trading strategies.
• Work closely with traders on their requests and implement enhancements to existing systems.
  
  

The full set of responsibilities will be defined on the operational basis and individual candidate profile.

Requirements

• Excellent educational background with a Bachelor's or Master's degree in Computer Sciences, Data Science, Engineering, or a related field.
• Minimum of 2 years of experience in python-based software development, ideally in a fast-paced trading environment
• Technical skills:
• Proficiency in Python, Rust is a bonus.
• Proficiency in Unix based systems and cloud platforms (AWS).
• Familiarity with real-time data messaging (Redis, websockets).
• Experience with deployment and monitoring tools, e.g. supervisor, dockers, Grafana, Nagios, etc.
• Experience with Rest API framework.
• Personal qualities:
• Highly motivated, responsible and responsive
• Mature enough to work collaboratively on the existing code base.
• Able to work effectively in a fast-paced trading environment.
• Excellent problem-solving skills and attention to detail.
• Strong English language competency.
  
  

Preferred / Desirable Experience

• Experience in the finance or cryptocurrency sectors.
• Experience with low latency systems and high-frequency trading environments.
• Experience developing data storage and dissemination infrastructure.
• Expertise with exchange connectors implementation.
• Expertise in SQL, Postgres, as well as non-SQL data warehousing.
  
  

Right to work: This role will be based full time from our London office. Only candidates who possess the right to work in the UK 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.

Deadline for applications: August 7th, 2025