Hybrid opportunity in Mexico City — occasional office visits required.

We are currently looking for an experienced IMS Engineer to join a mobile network project based in Mexico City.

This is a hybrid role, requiring occasional visits to the office, so candidates should be based in Mexico City or able to commute when needed.

The idóneo candidate will bring strong hands-on experience in IMS Core, VoLTE, VoWiFi, VoNR, SIP, Diameter, LTE/EPC, 3G/4G/5G networks, and troubleshooting complex mobile network issues.

Key responsibilities include:
- Designing, integrating, and implementing IMS Core solutions
- Supporting IMS, VoLTE, VoWiFi, and VoNR configuration, commissioning, integration, and troubleshooting
- Analyzing logs, traffic traces, call flows, and configuration data
- Working on VNF/CNF architecture, OpenStack/OpenShift, Kubernetes, and containers
- Creating and executing MOPs on production networks
- Preparing technical documentation, including HLD, LLD, functional requirements, and specifications
- Supporting acceptance testing, rollouts, migrations,



and risk mitigation activities
- Collaborating with customer teams, technical teams, and operational stakeholders

Required experience and skills:
- Strong experience in the IMS Core domain
- Hands-on knowledge of VoLTE, VoWiFi, VoNR, ViLTE, eSRVCC, SIP, RTP, RTCP, Diameter, and IMS call flows
- Experience with Nokia Core equipment is a plus, including TAS, CFX 5000, ENUM, MSS, and MGW
- Good understanding of LTE, EPC, 3GPP protocols, routing, switching, IPv6, and roaming scenarios
- Experience troubleshooting P/I/S-CSCF servers and L2–L7 network issues
- Knowledge of Kubernetes, containers, OpenStack, or OpenShift
- Fluent Spanish and proficient English
- Strong communication skills and ability to present technical topics to customers

Candidates with solid IMS and mobile core experience who are open to a hybrid opportunity in Mexico City are welcome to apply.

📌 Engineer I, Software (México)
🏢 Novelus
📍 México