Senior Roaming Operations Engineer

This is a fully remote position, open to applicants in Germany.

📋 Description

• Deliver second-line support for Instant Roaming, Open-Connectivity Roaming (Roaming Hub), SMS Translator, Steering of Roaming, Managed PGW, and other associated services.

• Oversee network and service availability and quality, executing both proactive and reactive maintenance tasks.

• Manage incidents and conduct scheduled maintenance activities.

• Engage in the rollout of new services and network projects in partnership with engineering teams.

• Collaborate with Product Management, Presales, and other second-line customer support teams to collect information, logs, and traces, validate routing and data transfer, and ensure optimal service availability and quality.

• Work closely with vendors, assess their performance, and guarantee effective service delivery.

• Assist customers globally with roaming-related challenges and collaborate with mobile operators and Travel SIM companies.

• Exhibit a solid understanding of network architecture, signaling protocols, and interfaces.

• Aid in training both new and existing team members.

• Support workload planning to guarantee business continuity during holiday seasons.

• Participate in an on-call rotation for one week per month.

⛳️ Requirements

• Bachelor’s or Master’s degree in Electronics, Telecommunications, IT, ICT, or a relevant field.

• A minimum of 3–5 years of experience in telecommunications, mainly in signaling or roaming (mobile telecommunications or international carrier telecom).

• Strong comprehension of network architecture, SS7/SIGTRAN, LTE, GSM call flows, Mobile Packet Core call flows, and roaming scenarios.

• Familiar with telecommunications technologies and ITU/ETSI standards.

• High level of initiative, autonomy, and dedication.

• Capability to work efficiently in an international and multicultural setting.

• A proactive, self-motivated attitude, with the ability to identify and resolve issues independently.

• Ability to function both independently and as part of a team, working closely with peers and colleagues.

• Competence to work effectively under pressure, remain organized, and think creatively.

• Results-driven and customer-oriented, committed to delivering high-quality services.

• Strong organizational capabilities, able to manage multiple projects simultaneously.

• Ability to thrive in a fast-paced environment and adjust priorities based on urgent requests.

• Upper-intermediate (B2) English proficiency or above.

• Willingness and readiness to travel internationally as needed.

• Experience with the Cellusys Steering of Roaming platform is a plus.

• Familiarity with 5G networks and/or VoLTE/IMS is advantageous.

• Good operational knowledge of Linux is beneficial.

• Understanding of Docker is a plus.

• Knowledge of IT tools such as Splunk and Python is advantageous.

• Background checks are conducted on all final candidates.

🏝️ Benefits

• Opportunities for professional development.

• Engaging and meaningful projects.

• An open and inclusive culture.

• Exceptional work-life balance.

• Flexible hybrid working model.

• A lifestyle of curiosity and continuous learning.

• International travel opportunities as required.