Junior Cloud Native Application Developer

Exciting new opportunities to develop, maintain and modernize CSCF (Call Session Control Function), a software-only core network application in the IP Multimedia Subsystem (IMS) responsible for SIP/SDP signaling, registration and session control. CSCF runs as an application on top of the Application Development Platform (ADP) and is delivered as a cloud-native for carrier-grade telecom networks.

By joining the team, you will work on CSCF application components such as SIP Stack, Diameter Stack, Event Dispatcher, Service Invocation, node-specific behavior and OAM integration. You will collaborate with global engineering teams to improve reliability, scalability, observability and service continuity across clustered deployments.

Your responsibilities include but not limited to the following:

• Under the guidance of senior engineers, be involved in the full Software Development Life Cycle for CSCF application components and microservices, from analysis and implementation to testing, delivery and maintenance.
• Contribute to the development and maintenance of features related to SIP/SDP and Diameter signalling, including routing, registration, service invocation.
• Write clean, maintainable and well-documented code; create unit or integration tests and participate in code reviews to promote engineering best practices.
• Continuously learn IMS, 3GPP/IETF telecom standards and cloud-native practices to improve CSCF quality, security and performance.