Lead Software API Architect

Permanent full-time hybrid.

Connecting clients to markets and talent to opportunity.

With 4300 employees and over 400000 retail and institutional clients from more than 80 offices spread across five continents were 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: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 youll have the opportunity to optimize processes and implement game-changing policies.

Position Purpose:We are seeking a highly experienced Lead or Senior Architect with deep expertise in API management and development to lead our enterprise-wide API strategy. This individual will be responsible for architecting secure scalable and resilient API solutions across hybrid environments (on-premise and cloud with a strong focus on Azure). The successful candidate will play a key role in shaping our API platform ensuring strong governance and seamless service-to-service communication while supporting business needs across internal and external integrations.

Primary duties will include:

• Assist with designing implementing and governing API management strategies across hybrid environments (Azure and on-premise).
• Help to lead the end-to-end lifecycle of API development including requirements analysis design testing deployment and monitoring.
• Work closely with Security Architects to support API security best practices including authentication authorization and encryption for internal and external APIs.
• Contribute to service-to-service authorization patterns to ensure secure inter-service communication across platforms.
• Collaborate with development teams DevOps and security architects to ensure consistency scalability and compliance across all API implementations.
• Set up and maintain a developer portal (e.g. Readme or ) with clear interactive and well-structured API documentation to enhance usability and adoption across internal and external consumers.
• Design solutions that support robust API versioning strategies and facilitate deployment across multiple environments (e.g. dev test staging production).
• Help to define and maintain API governance policies including versioning documentation and lifecycle management.
• Support the adoption of API-first and event-driven architecture across the enterprise.
• Engage with business stakeholders and technology teams to ensure API capabilities align with strategic business goals.
• Provide leadership and mentorship to development teams and junior architects.
• Stay current with industry trends and best practices in API management security and enterprise architecture.

To land this role you will need:

• At least 8years experiencewith API design management and development.
• Proven experience as a Senior or Lead Architect in enterprise API management and development.
• Hands-on experience with Azure API Management (APIM) and other Azure services (e.g. Azure AD Azure Functions App Gateway).
• Familiarity with API security concepts and protocols (OAuth 2.0 OpenID Connect mTLS JWT etc.); deep expertise is beneficial but not required as you will collaborate with a dedicated Security Architect.
• Solid understanding of RESTful API principles microservices architecture and API-first design.
• Experience implementing API gateway patterns rate limiting caching logging and analytics.
• Strong background in enterprise integration patterns and technologies.
• Familiarity with CI/CD pipelines and Infrastructure as Code (IaC) in a cloud environment.
• Knowledge of different programming Core is required; experience with additional languages (e.g. Java Python) is beneficial.
• Understanding of service-to-service communication and authorization mechanisms in cloud and hybrid environments would be beneficial.
• Knowledge of messaging systems such as AMQ Redpanda or Kafka would be beneficial.
• Familiarity with streaming API design and technologies ideally Lightstreamer is advantageous.
• Excellent communication collaboration and stakeholder engagement skills.
• Strong communication and presentation skills
• Fluent English (C1)

Education / Certification Requirements:

• Bachelors degree in computer science Information Technology or a related field; relevant certifications (e.g. Azure Solutions Architect TOGAF) are a plus.

Working environment:

• Hybrid in our office at ul. Mogilska 35 Cracow (private parking for employees).
• FTE (UoP).

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