Senior Staff Engineer/Senior C#.Net Engineer

Overview Connecting clients to markets – and talent to opportunity. With 5,400+ employees and over 80,000 institutional, commercial, and payments clients, we operate from more than 80 offices spread across six continents. As a Fortune 100, Nasdaq-listed provider, we connect clients to the global markets – focusing on innovation, human connection, and providing world-class products and services to all types of investors.

Whether you want to forge a career connecting our retail clients to potential trading opportunities, or ingrain yourself in the world of institutional investing, StoneX Group is made up of four business segments that offer endless potential for progression and growth.

Corporate: Engage in a deep variety of business-critical activities that keep our company running efficiently. From strategic marketing and financial management to human resources and operational oversight, you’ll have the opportunity to optimize processes and implement game-changing policies.

Responsibilities Position Purpose: This role supports the Pricing/Market Data team by designing, developing, and testing key projects that strengthen pricing and risk management. You will contribute to strategic initiatives to modernize our technology stack into a scalable, microservice-based architecture, actively offering ideas and solutions throughout the project lifecycle.

Primary Duties will include:

• Perform detailed requirement, design and code reviews to ensure thorough due diligence is applied.
• Understand individual business requirements in order to design, develop and test effective solutions.
• Understand and implement required development guidelines, design standards and best practices at all times.
• Understand in detail the business operational process both before and after the impact of any software changes.
• Take responsibility for analysis, design and development to ensure due diligence is applied consistently to all software changes.
• Ensure software releases support continuous build and automated deployment practices.
• Provide prompt and knowledgeable assistance to business continuity and platform operations whenever requested.
• Mentor junior engineers
• Work to identify risks and enhance control across the business.

Qualifications To land this role you will need:

• Proficient in C# and the modern .NET platform (Core/.NET 6+) for backend development.
• 5+ years of industry experience building enterprise grade software.
• Experienced in building REST APIs and gRPC services.
• Comfortable with Linux command line for deployment and troubleshooting.
• Skilled in WPF for desktop applications and modern web frameworks such as React.
• Knowledge of messaging systems including ActiveMQ, Kafka, and Redpanda.
• Familiar with CI/CD pipelines using TeamCity.
• Hands-on experience with Ansible for automation and configuration management.
• Expertise in Docker and Kubernetes for containerization and orchestration.
• Excellent communication and collaboration skills.
• Proficiency in English.
• Experience with 'React' or similar frameworks would be desirable

Working environment:

• 4 days in office per week