Interconnect and Roaming Engineer

Interconnect and Roaming Engineer

Vodafone is seeking a full‑time Interconnect and Roaming Engineer with a university degree in telecommunications or related areas, and solid experience in the telecom sector. The role involves configuring, maintaining, testing and troubleshooting interconnect and roaming services for voice, SMS and data, ensuring compliance with GSMA standards and Vodafone guidelines, and supporting the global mobility strategy.

Note: The selection process will be managed entirely by Vodafone.

What You’ll Do

Ensure the seamless technical enablement and performance of interconnect and roaming services across Vodafone and partner networks.

Responsible for configuration, testing, and troubleshooting of interconnects for voice, SMS, and data services, ensuring compliance with GSMA standards and Vodafone guidelines.

Collaborate with internal teams, external operators, and service providers to manage service openings, lifecycle maintenance, and incident resolution.

• Interconnect Configuration & Maintenance: maintain routing and signalling setups across interconnect platforms.
• Incident Management: analyze and resolve roaming and interconnect‑related issues and perform root‑cause analysis.
• Documentation & Compliance: maintain technical documentation and ensure compliance with standards.
• Service Launch Readiness: validate readiness for new interconnect services and approve go‑live status.
• Decision Ownership: own technical decisions related to routing, signalling, and partner configurations; assess and approve network changes impacting roaming/interconnect services.
• Define evolutions of the interconnect guidelines and participate in the preparation of High‑Level Designs (HLDs).
• Focus on interconnect for Germany.

Who You Are

Core competencies, knowledge and experience

• In‑depth knowledge of mobile network architecture (2G/3G/4G/5G).
• Familiarity with signalling protocols: SS7, Diameter, SIP, GTP.
• Experience with network elements: HLR/HSS, STP, DRA, PGW/SGW, IMS.
• Understanding of GSMA standards (IR.21, IR.85, IR.88) and IPX/GRX networks.
• Good understanding of the software lifecycle: design, development, testing, acceptance, implementation, performance optimisation and troubleshooting.
• Strong analytical and problem‑solving skills, effective communication and stakeholder management, project and time management across multiple priorities.
• High attention to detail and accuracy; adaptability to evolving technologies and standards.

Must have technical/professional qualifications

• University degree in computer science, telecommunications or equivalent.
• Telecommunications industry and project delivery experience (operator or supplier).
• 2–3 years of experience in telecom engineering, preferably in roaming or interconnect.
• Very good level of English.

Benefits

Vodafone offers a diverse and inclusive environment, strong support for work‑life balance, and opportunities for growth and development.

We are an equal‑opportunity employer committed to diversity and inclusion.