Source Code in Downtown Toronto is seeking a Sr. Software Developer - API to design, build and maintain API-driven systems. You will translate functional specs into robust, tested APIs and contribute to the architecture of scalable microservices on Azure. The role requires 8+ years of API development experience, strong REST API design, and hands-on knowledge of Spring Integration, OAuth2/JWT/SAML, and relational databases. In office hybrid work is supported for project needs.