Senior Software Engineer – 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 involves designing, developing, integrating, and supporting real‑time charging and Intelligent Network solutions for high‑availability telecom environments.

Key responsibilities

• Design, develop and maintain real‑time charging solutions using Oracle ECE for voice, data and converged services.
• Customize ECE extensions, gateways, charging sessions, credit control and balance management processes.
• 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 external 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 signalling.
• 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 telecommunications charging, billing and Intelligent Network environments.
• Strong background in high‑availability, mission‑critical telecom systems.
• Proven ability to work collaboratively with network, billing, DevOps and operations teams.

Required skills

• Oracle Elastic Charging Engine (ECE) architecture, deployment and customization.
• 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 customization.
• Oracle SQL, 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.