Senior Full Stack Engineer

Square One Resources is seeking a Senior Full Stack Engineer to join a large-scale technology modernization program within the financial services sector. You will play a key role in transforming enterprise systems through modern application development, cloud transformation, and the implementation of advanced software architectures.

Key responsibilities

• Design, develop, and maintain modern enterprise applications across both backend and frontend stacks.
• Build scalable, secure APIs and system integrations to support complex business requirements.
• Develop cloud-native applications and contribute to the transition toward microservices and event-driven architectures.
• Collaborate with cross-functional teams including Solution Architects, DevOps, and Data specialists to ensure high standards of code quality and performance.
• Support large-scale application and data migration initiatives within an Agile environment.

Requirements

• Extensive experience in full-stack software development within enterprise-scale environments.
• Proven expertise in designing REST APIs and working with distributed systems.
• Strong proficiency in cloud-native technologies and modern software development practices.
• Experience with legacy application modernization or large-scale technology transformation projects.
• Ability to work effectively within international, cross-functional engineering teams.

What we offer

• Opportunities to work on high-impact, global financial transformation programs.
• Support for professional development and continuous integration/deployment environments.
• Access to private medical care and co-financing for sports activities.