Release Train Engineer managing end - to - end execution and governance in agile product transformation. Leading a cross - functional team and promoting an engineering - centric culture in a hybrid work model.
About the role
- Roaming IREG Engineer managing international roaming processes and procedures for a global mobile communications provider. Responsible for technical setup, testing, and maintenance of roaming services.
Responsibilities
- __****Key Responsibilities**__
- Plan, execute, and document IREG tests (IR.24, IR.35, IR.50, etc.) for voice, SMS, and data services, in line with GSMA standards.
- Set up and verify interconnect links for voice and messaging services with partner operators.
- Monitor roaming service KPIs, troubleshoot issues, and ensure compliance with roaming agreements.
- Configure and test SS7, Diameter, SIP, and related signaling protocols for international connectivity.
- Liaise with foreign operators, roaming hubs, and internal teams during implementation and troubleshooting.
- Maintain up-to-date test results, network configurations, and operational procedures.
- Oversee the footprint management of all 1Global products, working closely with the wholesale and other networks team.
Requirements
- **Must Have**
- Perform end-to-end roaming testing (voice, SMS, data, CAMEL, VoLTE, 5G roaming).
- Execute IREG test cases according to GSMA guidelines and bilateral agreements.
- Analyze and troubleshoot roaming issues with signaling traces and logs.
- Work closely with international roaming partners to resolve interconnect problems.
- Manage and update roaming documentation (IR.21)
- Support new roaming launches (testing and activation of new operators, technologies, and services).
- Coordinate with internal teams (Core Network, Billing, etc) during testing and troubleshooting.
- Validate TAP files and charging/billing aspects of roaming services.
- Monitor KPIs and performance of roaming services after launch.
- Follow-up and define Quality and Performance indicators for the entire roaming service.
- Close relationship with external partners like carriers, service providers.
- Have successful partnerships with other departments and teams.
- ****Qualifications**
- Degree in Telecom Engineering or Computer Science or equivalent experience
- Knowledge of 3GPP, ETSI, standards and specifications for SIM/eSIM
- Knowledge and experience with protocols such as MAP, S6a
- Familiar with an RSP architecture and experience operating it
- Knowledge in scripting and have basic programming skills.
- Experience with protocol analyzer tools like Wireshark, Astelia, and ability to use them to troubleshoot networks errors/problems for the mentioned protocols
- Experience with ETSI NFV architecture and solutions
- Familiar with MVNO/MVNE/MVNA architecture(s) and landscape
Benefits
- **What we offer?**
- **CLT contract** — enjoy job stability and reliable benefits that value your work
- **Quarterly performance bonuses **to reward your hard work and achievements
- **Meal allowance paid into Caju card** — R$100 per working day
- **Health insurance with SulAmérica **— 50% covered by the company
- **Daycare allowance **provided to mothers with children under 3 years old — R$500 per month per child
- Kickstart your journey with an exciting welcome **onboarding trip to one of our European offices** (Lisbon or Berlin)!**
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Location requirements
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