Senior Fullstack developer - Python / FastAPI

We are seeking a Senior Full-Stack Engineer with expertise in Python and ReactJS to spearhead the development and optimization of mission-critical systems. This role involves designing, refactoring, and maintaining high-performance applications while ensuring stability and scalability for key Treasury and financial operations.

This is a unique opportunity to take ownership of impactful financial systems, working with leading technologies and contributing to challenging, high-value projects.

Build and maintain scalable applications using Python, FastAPI, and ReactJS Design robust microservices architectures, API integrations, and database models Implement containerized deployments with Docker and Kubernetes on Ubuntu-based environments Drive refactoring and redesign initiatives for complex financial systems Architect systems to ensure resiliency, compliance, and auditability in payments and Treasury operations Develop and manage comprehensive testing frameworks, including automated unit and integration tests Collaborate with globally distributed teams to deliver agile project milestones Foster a culture of quality through code reviews and knowledge sharing Utilize tools like Jira and Confluence to align project workflows and communication Maintain strong system uptime through best practices in continuous delivery and monitoring 3+ years’ experience with Python, FastAPI, ReactJS, SQL Server, SQL, and Docker Knowledge of Kubernetes and deploying containerized applications in production environments Skills in creating and managing Ubuntu-based application images for deployments Competency in developing test automation frameworks and managing integration testing Experience working in agile teams on high-stakes, complex applications Familiarity with Atlassian tools, including Jira and Confluence System design expertise spanning microservices, APIs, and database schemas Background in leading refactoring efforts or redesigning critical financial systems Understanding of resiliency, security, and compliance in Treasury/payment workflows Strong collaborative mindset and ability to work with global cross-functional teams English language proficiency at an Upper-intermediate level (B2) or higher Experience with GitHub Actions, integrating Jira ↔ GitHub workflows, and DevOps processes Prior experience in financial services, particularly within bonds and loans domains Familiarity with Apache Kafka Skills in Cursor code editor and GitHub Copilot Experience with SWIFT Payments