Software .NET Engineer (Docker/Kubernetes) - Mid level

Permanent, full-time, hybrid

Connecting clients to markets – and talent to opportunity.

With 4,300 employees and over 400,000 retail and institutional clients from more than 80 offices spread across five continents, we’re a Fortune-100, Nasdaq-listed provider, connecting clients to the global markets – focusing on innovation, human connection, and providing world-class products and services to all types of investors.

At StoneX, we offer you the opportunity to be part of an institutional-grade financial services network that connects companies, organizations, and investors to the global markets ecosystem. As a team member, you'll benefit from our unique blend of digital platforms, comprehensive clearing and execution services, personalized high-touch support, and deep industry expertise. Elevate your career with us and make a significant impact in the world of global finance.

Business Segment Overview: 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.

Technology Ecosystem:

• Languages & Frameworks: C#, .NET Core, ASP.NET 

• Architecture: Microservices, Event-driven (Kafka, AMQ), CQRS 

• Cloud & Infra: Azure, Kubernetes, Docker, Rancher 

• Databases: MS SQL Server (T-SQL), NoSQL (a plus) 

• Tooling: Git, Visual Studio, CI/CD pipelines (TeamCity), Octopus, Grafana

Responsibilities

Position Purpose: This is an ideal opportunity for a mid-level .NET engineer who wants to work on production-grade APIs and backend systems that drive real trading capabilities, from authentication and pricing to order execution and account management.You’ll be part of a collaborative, cross-functional team working closely with QA engineers, other developers, and team leads. Together, you’ll deliver efficient, well-designed backend services in a modern cloud-native architecture.

Primary duties will include:

• Build and improve backend services and APIs used in high-traffic trading systems 

• Develop scalable solutions using the latest .NET technologies 

• Design features in collaboration with team leads and stakeholders 

• Debug, analyze, and resolve issues in both development and live environments 

• Apply TDD/BDD practices and write clean, testable, and maintainable code 

• Participate in planning sessions, agile ceremonies, code reviews, and technical discussions 

• Continuously evaluate new technologies and contribute to platform improvement 

• Work with other engineers to ensure performance, reliability, and secure design 

Qualifications

To land this role you will need:

• 3+ years of experience in backend .NET/C# development 

• Solid knowledge of .NET Core, RESTful APIs, and software architecture best practices 

• Experience with Kubernetes and/or Docker 

• Familiarity with messaging systems (e.g. ActiveMQ, Kafka) 

• Good knowledge of SQL Server and T-SQL; NoSQL experience is a plus 

• Experience working in Agile Scrum teams.

• Exposure to CI/CD tools like TeamCity and Octopus.

• Strong communication skills and ability to collaborate across teams. 

• Experience with financial systems or real-time applications is a bonus.

Education / Certification Requirements: 

• Bachelor's degree in Computer Science, Software Engineering, or equivalent experience 

Working environment:

• Hybrid - private parking for employees.

• FTE (UoP).