Senior Full Stack Engineer (C# & React) at StoneX Group

Krakow, Lesser Poland Voivodeship, Poland -

Full Time

Start Date

Immediate

Expiry Date

15 Jun, 26

Salary

0.0

Posted On

17 Mar, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

C#, .NET Core, .NET 6+, React, WPF, REST APIs, gRPC, Azure, Linux Command Line, ActiveMQ, Kafka, Redpanda, TeamCity, Ansible, Docker, Kubernetes

Industry

Financial Services

Description

Overview Permanent, full-time, hybrid 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. Business Segment Overview: With boots on the ground authenticity at the heart of everything we do, our comprehensive array of commercial products and services enable you to work directly with our clients, across hedging, risk management, execution and clearing, OTC products, commodity finance and more. Responsibilities Position Purpose: This role supports the Pricing 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. Technology Ecosystem: Front-End: WPF, React Back-End: C#, .NET (Core/.NET 6+) Cloud: Azure 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. 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. 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. Specialized in real-time streaming and distributed enterprise messaging. Expertise in Docker and Kubernetes for containerization and orchestration. Excellent communication and collaboration skills. Proficiency in English. What makes you stand out: Experience in finance Education / Certification Requirements: Bachelor’s degree in information technology. Working environment: Hybrid 4-days in office. #LI-Hybrid #LI-DK1

Responsibilities

This role supports the Pricing Team by designing, developing, and testing key projects to strengthen pricing and risk management, contributing to strategic initiatives to modernize the technology stack into a scalable, microservice-based architecture. Primary duties involve performing detailed requirement, design, and code reviews, understanding business needs to design effective solutions, and ensuring software releases support continuous build and automated deployment practices.