Senior Software Engineer / SME – Oracle ECE and OC3C

Role overview

AxiaMetrics is looking for a Senior Software Engineer / Subject Matter Expert with deep hands-on experience in Oracle Elastic Charging Engine (ECE) and Oracle Communications Convergent Charging Controller (OC3C). This position is centered on building, integrating, and supporting real-time charging and intelligent network solutions for telecommunications environments that demand high availability and resilience.

What the role involves

• Building, enhancing, and sustaining real-time charging solutions on Oracle ECE for voice, data, and converged service use cases.
• Adapting ECE components such as extensions, gateways, charging sessions, credit-control flows, and balance handling processes.
• Installing, configuring, upgrading, and supporting ECE platforms, including cloud-native and geo-redundant setups.
• Connecting ECE with BRM, PDC, mediation layers, PCRF/PCF, 5G charging components, and other telecom systems.
• Designing OC3C control plans, feature nodes, and SLEE-based applications for live telecom charging services.
• Implementing and maintaining Voice, SMS, USSD, and Intelligent Network service logic.
• Working with telecom signaling technologies such as Diameter, SS7, MAP, TCAP, and SIGTRAN.
• Tracking platform health, resolving issues, and improving performance, scalability, and uptime.
• Handling L2/L3 production support, investigating root causes, and driving operational improvements.
• Introducing CI/CD workflows, automation, monitoring, and deployment standards.
• Partnering with network, billing, DevOps, and operations teams to design and deliver solutions.

Technical requirements

• Strong command of Oracle ECE architecture, deployment, customization, and administration.
• Solid knowledge of Oracle OC3C architecture, service-control environments, and real-time charging delivery.
• Advanced understanding of Diameter protocols, including Gy, Ro, and Sy, as well as SS7 protocols such as CAMEL, INAP, and MAP.
• Practical experience with SIGTRAN technologies like M3UA and SCTP.
• Core Java development experience, including ECE extension customization.
• Working knowledge of Oracle SQL and PL/SQL.
• Experience building or consuming REST and SOAP web services.
• Familiarity with Kafka or comparable event-streaming tools.
• Comfort working on Unix/Linux systems and writing Shell scripts.
• Exposure to Docker, Kubernetes, and cloud-native deployment models.
• Experience with CI/CD tools and automated deployment practices.
• Knowledge of monitoring and observability tools such as Prometheus and Grafana.
• Understanding of 5G charging architecture and CHF integration.

Preferred background

• Previous work in telecom billing, charging, and Intelligent Network environments.
• Experience integrating Oracle BRM, PDC, mediation, and provisioning platforms.
• Background in high-availability, geo-redundant, and mission-critical telecom systems.
• Exposure to performance tuning, JVM optimisation, and scalability engineering.

Additional information

This is a telecom-focused contract role based onsite in Doha, Qatar. The required background is 8–10+ years, with emphasis on charging, billing, and Intelligent Network solutions.