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Senior Platform Engineer
  • Kraków County
Senior Platform Engineer
Kraków, Kraków County, Lesser Poland Voivodeship, Polska
StoneX Group Inc.
28. 2. 2025
Informacje o stanowisku

Overview

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, youll 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: 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: StoneX Enterprise Platform Engineering Team is looking for an Engineer to develop and implement software for the platform, focusing on developer experience, operational excellence, automation, data, and quality assurance. You will deliver scalable, high-quality observability solutions that provide essential insights into systems and applications, collaborate on lean agile projects, and ensure timely delivery of solutions that meet or exceed quality standards. You will also guide less experienced team members, analyze software performance, conduct peer code reviews, and oversee the deployment and integration of new software.

Primary Responsibilities:

  • Large focus on developer experience and operational excellence
  • Managing and implementing third-party technology vendors
  • Lead the software development life cycle (SDLC) for the team including estimating, analysis, code design, development, testing, debugging, and maintenance
  • Implement engineering standards, best practices, and quality assurance procedures
  • Work closely with Core IT and software engineering teams to understand requirements and translate them into technical stories
  • Provide technical expertise to analyze complex requirements and break down features into tasks
  • Take responsibility for the quality of applications and alignment with technology goals
  • Review and give constructive feedback on code
  • Identify recurring issues and opportunities to improve engineering processes
  • Lead the execution of software solutions and monitoring tools to ensure effective operation
  • Participate in strategic implementation regarding technology solutions and platform architecture
  • Mentor and grow less experienced engineers
  • Drive operational excellence and developer experience through modern technology and automation

Qualifications

To land this role you will need:

  • 4+ years platform (or software) engineering experience, cloud, SRE, DevOps, or full-stack
  • Experience with IaC, specifically Terraform
  • Experience with Cloud platforms (Azure/AWS/GCP)
  • Strong experience with object-oriented programming and design, including C# or other languages
  • Experience designing, implementing, and integrating with gRPC and/or RESTful APIs
  • Experience with QA Engineering, Data Engineering, and SRE/DevOps practices
  • Experience with automated build and deployment tools
  • Experience designing and writing robust software for highly scalable, low-latency, event-driven, distributed platforms
  • Experience supporting, modifying, and maintaining systems and code developed by others
  • Experience with modern architectures and practices including microservices, cloud computing, and domain-driven design
  • Experience working with Docker and PowerShell
  • Experience with Jira and Confluence
  • Experience moving from datacenter to the cloud
  • Experience with Datadog, including configuration and advanced feature usage
  • Knowledge of additional observability tools (e.g., Prometheus, Grafana, OpenTelemetry) is a plus

What makes you stand out:

  • Able to work in a positive team culture with a strong sense of accountability and collaboration
  • Able to balance incoming requirements with a focus on tactical execution
  • Excellent coding skills and peer code review
  • Excellent verbal and written communication skills
  • Excellent analytical and problem-solving skills
  • Excellent skills in running distributed Lean Agile Scrum Teams
  • Deep understanding of modern cloud-native technology with microservice design patterns
  • Deep understanding of cloud providers (Azure/AWS)
  • Strong knowledge of observability principles (logging, monitoring, and tracing)
  • Experience working in a Lean Agile environment

Working Environment:

  • Positive team culture with a strong sense of accountability and collaboration
  • Hybrid; our new Cracow office address: St. Mogilska 35.
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