Senior Software Engineer / SME – Oracle ECE & OC3C

About the role

We are looking for a Senior Software Engineer and Subject Matter Expert with extensive experience in Oracle Elastic Charging Engine (ECE) and Oracle Communications Convergent Charging Controller (OC3C). The role will focus on designing, developing, integrating, and supporting real‑time charging and Intelligent Network (IN) solutions for high‑availability telecommunications environments.

Key responsibilities

• Design, develop and maintain real‑time charging solutions for voice, data and converged services using Oracle ECE.
• Customize ECE extensions, gateways, charging sessions, credit control and balance management.
• Deploy, configure, upgrade and support cloud‑native, geo‑redundant ECE environments.
• Integrate ECE with Oracle BRM, PDC, mediation systems, PCRF/PCF, 5G charging platforms and other telecom systems.
• Design and develop OC3C control plans, feature nodes and SLEE‑based applications for real‑time services.
• Implement and support Voice, SMS, USSD and IN service logic, and configure Diameter, SS7, MAP, TCAP and SIGTRAN signaling.
• Monitor, troubleshoot and optimise platform performance, scalability and availability.
• Provide L2/L3 production support, root‑cause analysis and operational improvements.
• Implement CI/CD pipelines, automation, monitoring and deployment best practices.

Required profile

• 8‑10+ years of experience in telecom charging, billing and Intelligent Network environments.
• Strong background with Oracle ECE and OC3C architectures.
• Hands‑on experience with Diameter (Gy, Ro, Sy) and SS7 (CAMEL, INAP, MAP) protocols.
• Proven ability to work in high‑availability, mission‑critical telecom systems.

Required skills

• Oracle Elastic Charging Engine (ECE) deployment, customization and administration
• Oracle OC3C architecture and real‑time charging implementations
• Diameter protocols (Gy, Ro, Sy) and SS7 protocols (CAMEL, INAP, MAP)
• SIGTRAN technologies (M3UA, SCTP)
• Core Java development and ECE extension coding
• Oracle SQL and PL/SQL
• REST and SOAP web services
• Kafka or similar event‑streaming platforms
• Unix/Linux administration and shell scripting
• Docker, Kubernetes and cloud‑native deployments
• CI/CD tools and deployment automation
• Monitoring with Prometheus and Grafana
• Understanding of 5G charging architecture and CHF integration