Senior Software Engineer: Senior Full-Stack Cloud Modernization Engineers

Job Description FIS Management Services, LLC seeks Senior Software Engineer: Senior Full-Stack Cloud Modernization Engineers in Jacksonville, FL to perform financial data exchange, file format processing, and digital certificate lifecycle management for enterprise financial services clients. Lead implementation of financial exchange workflow protocol (FXR) and drop file and NTB file processing mechanisms, design and implement CTI software licensing systems, and develop automated processing for financial file formats (AFP, id2). Engineer the cloud migration of legacy financial applications to AWS across EC2, S3, Elasti

Cache, and RDS; implement distributed Redis-based session management. Modernize enterprise web applications, designing features in React and TypeScript while maintaining C# (.NET) applications built on jQuery, JavaScript, and CSHTML, evolving modular, API-driven architectures. Design and operate Jenkins-based CI/CD pipelines automating builds, testing, artifact management, and multi-environment promotion with embedded quality and security gates.

Deliver end-to-end implementations of enterprise technologies, including Single Sign-On (SSO) client implementations. Administer the SSL/TLS certificate lifecycle using platforms such as Sectigo, spanning provisioning, renewal, revocation, and key rotation. Remediate application vulnerabilities using Snyk and Macroscope; enforce code quality using static code analysis.

Monitor application performance using Thousand

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