Charging Systems Specialist
Nokia
Ethiopia
Posted on Dec 4, 2025
As the Charging System Specialist at Nokia, you'll be part of a team focused on the operation and maintenance of our Charging & Mediation System. Your role is essential in ensuring the stability and efficiency of network operations while providing vital support to business units for their daily operational queries. You'll thrive in an innovative and collaborative work environment, where continuous improvement is encouraged, and your insights shape our service offerings. Join us to tackle exciting challenges and drive technological advancements while fostering a spirit of teamwork and dedication.
Advancing connectivity to secure a brighter world.
Nokia is a global leader in connectivity for the AI era. With expertise across fixed, mobile and transport networks, powered by the innovation of Nokia Bell Labs, we’re advancing connectivity to secure a brighter world.
About the Business Group
Join Mobile Networks (MN) and help us become the trusted partner of choice for Communications Service Providers (CSPs), as well as for non-CSP entities in sectors like utilities, transportation, public services, and defense. Your work will contribute to delivering unbeatable customer experiences in wireless connectivity.
Our recruitment process
We act inclusively and respect the uniqueness of people. Our employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law. We are committed to a culture of inclusion built upon our core value of respect.
If you’re interested in this role but don’t meet every listed requirement, we still encourage you to apply. Unique backgrounds, perspectives, and experiences enrich our teams, and you may be just the right candidate for this or another opportunity.
The length of the recruitment process may vary depending on the specific role's requirements. We strive to ensure a smooth and inclusive experience for all candidates. Discover more about the recruitment process at Nokia.
Some of our benefits:
- Flexible and hybrid working schemes
- A minimum of 90 days of Maternity and Paternity Leave, with the option to return to work within a year following the birth or adoption of a child (based on eligibility)
- Life insurance to all employees to provide peace of mind and financial security
- Well-being programs to support your mental and physical health
- Opportunities to join and receive support from Nokia Employee Resource Groups (NERGs)
- Employee Growth Solutions to support your personalized career & skills development
- Diverse pool of Coaches & Mentors to whom you have easy access
- A learning environment which promotes personal growth and professional development - for your role and beyond
As the Charging System Specialist at Nokia, you will be responsible for effective Backoffice operation and maintenance of systems hardware and software primarily focused on Charging & Mediation System.
You have:
- 8+ years of cloud operations & hands–on charging & mediation experience in a production environment.
- Degree(s)/Major(s): Masters/Bachelors Computer Science/Electrical/Telecom/Computer Engineering.
- Expertise in BRM (Billing and Revenue Management) and ECE (Elastic Charging Engine)
- In-depth knowledge of online and offline charging systems
- Proficient in Linux, SQL, and MongoDB
- Strong understanding of GX, GY, and SY interfaces
- Adequate understanding of customer onboarding flows.
Nice-to-Have Skills:
- Expertise in SQL / Oracle / Oracle Database
- Expertise in Linux / Bash Scripting
- Knowledge of Call, SMS, Data Flows
- Expertise in Wireshark / Call, SMS and Data Trace Analyzation
- Experience in incident response and compliance documentation
- Oversee daily system monitoring to ensure integrity, availability, and performance of Charging & Mediation system resources and key processes.
- Troubleshoot and resolve system issues promptly to maintain operational stability.
- Skilled BRM (Billing and Revenue Management) expertise includes an in-depth understanding for effective billing and revenue management.
- Proficient in dynamically configuring quota for data services to optimize resource utilization and enhance user satisfaction.
- Skilled in deploying and configuring new Rating groups setups for efficient data service.
- Demonstrated understanding of 2G, 4G calls and SMS flows at the IDP level, ensuring adept troubleshooting and optimization.
- Comprehensive grasp of telecommunication interfaces including CAP V2, CAP V3, MAP, SMPP, and M3UA, facilitating seamless communication between network elements.
- Proficient in BRM integration with upstream system
- Skilled in API testing and validation
- Expertise in reading and interpreting CDRs (Call Detail Records) and EDRs (Event Detail Records)
- Participate in ISO/ITIL/ISMS processes as required.