As a Network Engineering member, in the Mobile Packet Core Services functional area, you will be responsible to propose, analyze and define the requirements for new and existing services and systems, related with the Packet systems under the responsibility of the functional area. Prepare, design, test and provide new solutions or product changes of the already existing portfolio. Define and support the technology evolution roadmap for the systems under the functional area and domain.
**Key Responsibilities**
- Collaboration with other Networks teams in defining and managing the projects for delivery of new solutions
- Project delivery. Network design. Integration and migration strategy definition. Collaboration with other relevant departments. Responsible for end-to-end delivery
- Design of new consumer and corporate telecom solutions
- Creation of technical documentation (HLD’s, LLD’s, WO’s, etc.) and maintain it over the lifecycle of the solutions
- Perform implementations in live environment. Understanding of End to End system testing requirements
- Follow-up and define Quality and Performance indicators
- Capacity and Performance Analysis, Reporting and Improvement Solution Definition
- Service & Resource configuration definition and implementation on requested systems
- Work on complex solutions that influence the design of current products and addresses design issues for future products or technologies
- Close relationship with external partners like carriers, service providers
- Elaborate, and manage the process, for change requests to current partners in order to meet the network necessities
- Control the network elements roadmap, being responsible for the necessary software/hardware upgrade during the components lifecycle
- Generate and implement process improvements, including and especially cross-team processes
- Documents the existing technology portfolio and proposes recommendations for improvements and/or alternatives
Requirements
**Must Have**
- Proven experience on implementation of live solutions on mobile telecom (GSM, UMTS, LTE, IMS), networks design, capacity management, engineering and architecture
- Knowledge of 3GPP, GSMA, ITU standards and specifications
- Experience in the design, test and operation of Packet Core systems, including P-GW, RADIUS, DNS, PCRF, ePDG, DRA
- Experience in defining, establishing and maintaining roaming interconnects for GRX/IPX
- Understanding about IMS architecture. Knowledge about VoIP, VoLTE, VoWiFi, and QoS
- IMS Architecture with understanding of IMS nodes including P/S/I-CSCF, Application Servers
- Experience in designing, implementing, testing and troubleshooting the following interfaces: Gx, RADIUS, SGi/Gi, Gy, Bp, S6b, S2b, SWm, Sxb
- Experience in mobile services charging (offline, online). Knowledge and experience of OCS and Gy and Bp interfaces
- Experience with IoT, including LTE-M and NB-IoT
- Knowledge and experience with Diameter/SCTP networks and protocols
- Knowledge and experience with protocols such as RADIUS, GTP-C, GTP-U, Diameter, MAP, S6a
- 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
- English proficiency mandatory, other languages are a plus
- Degree in Telecom Engineering or Computer Science or equivalent experience
****Nice to Have**
- +3 years working on telecoms, designing and implementing mobile core networks
- Experience in creating PCRF products, plans, service logic based on PCC architecture
- Experience in 5G Core design, implementation and operation
- Previous experience with Nokia and Affirmed Networks EPC products
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)!**
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard skills
mobile telecom implementationnetwork designcapacity managementPacket Core systemsP-GWRADIUSDNSPCRFVoIP5G Core design