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

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.

Position Purpose: 

As a hands-on Senior Staff Engineer, you will architect and develop high-performing, scalable, enterprise-grade applications across all tiers of the application stack. You’ll collaborate with talented engineers to design low-latency, mission-critical applications, driving innovation through every stage of the software development lifecycle.

Technology Ecosystem:

• Front-End: React, Typescript
• Back End: Node.js, SQL
• Cloud: Kubernetes, Docker, Azure

Primary duties will include: 

• Lead the design and evolution of backend APIs and infrastructure to meet business needs.
• Collaborate with UX and product teams to explore, iterate, and solve complex problems.
• Contribute to technical discussions, architecture decisions, and best practice initiatives across teams.
• Mentor and support the professional development of our engineering community through pair programming, talks, and external presentations.
• Drive impactful, scalable solutions that address critical business needs in global financial markets.

To land this role you will need:

• Proven experience developing complex, distributed event-based microservices using Node.js and TypeScript (Java experience is a bonus).
• Expertise in building RESTful APIs (gRPC experience is a plus).
• Proficiency with CI/CD pipelines, ideally using Azure DevOps.
• Strong knowledge of TDD/BDD testing frameworks.
• Excellent understanding of relational databases (SQL) and familiarity with NoSQL databases.
• A delivery-focused mindset and the ability to thrive in global Agile teams.
• Mastery of programming concepts, including clean code principles, SOLID design, and federated microservices architecture.

What makes you stand out:

• Minimum 2 years’ experience ideally withing financial services, FinTech.
• Experience leading a small team of developers and driven architecture solutions
• Experience with microservices federated architecture
• Exposure with distributed messaging/streaming platforms (Apache Kafka)

Education / Certification Requirements:

• BS/MS degree in Computer Science, Engineering or a related subject

Working environment:

• Hybrid (4 days from office)