Overview** **

OV is an innovative Mobile Network Operator specializing in IoT services, dedicated to providing seamless connectivity solutions for millions of active SIMs worldwide. With our network primarily built in-house, we empower our Partners to deliver reliable and innovative IoT solutions across a range of industries worldwide.

We are seeking a skilled Senior Mobile Network Engineer to take the lead in day-to-day operation and maintenance of our network. Ideally, you’ll have years of experience in operating and maintaining a production mobile network in a similar environment.

In this role, you will be responsible for overseeing the ongoing operation and maintenance of the network infrastructure, integrating new Partners and Suppliers as required, and expanding the footprint and services provided by the network.

What You’ll Be Doing

• Lead with the day-to-day operation of our Mobile Core (HLR/HSS, STP/DRA, PGW, IMS) and connectivity management platform (Radius, OCS, BSS).
• Take ownership of the underling Infrastructure (Switching, Routing, Data Centre, and Servers) supporting the OV platforms.
• Lead in the monitoring of performance and availability of OV services, providing proactive investigation and resolution of issues.
• Take the lead on projects within the Infrastructure and Network team as required, to expand the network footprint, services, and partner integrations.
• Aid in mentoring junior members of the team, fostering a culture of collaboration, innovation, and continuous improvement.
• Troubleshoot and resolve network-related issues, collaborating closely with cross-functional teams and vendors/suppliers to ensure seamless operations.
• Ensure compliance with security policies, regulatory requirements, and industry standards relevant to mobile network operations.
• Develop and maintain comprehensive documentation for all network systems and processes, ensuring clarity and accessibility for team members.

Requirements

• Proven experience maintaining a network in a production and mission critical environment, ideally with the mobile or telecommunications domain.
• Strong understanding of telecom protocols in use within mobile networks, such as SS7, GTP, Diameter, MAP, CAMEL, AAA, SMPP, SIP, VoLTE etc.
• Strong understanding of network and service monitoring best practice and automation (Grafana, SNMP, Syslog etc.)
• Knowledge of mobile network elements, from design and integration to their operation and management, such as HLR/HSS, PGW/GGSN, STP/DRA, IMS, SMSC etc.
• Strong understanding of Core network protocols (IPv4, BGP, OSPF, MPLS), ideally using vendors such as Cisco, Nexus, Fortinet.
• Knowledge of Linux (Ubuntu, HAProxy) and Microsoft (IIS, MS-SQL) server administration
• Knowledge of cloud providers would be beneficial, particularly Azure, Terraform and Kubernetes.
• Knowledge of any scripting Powershell/Bash or coding C#/.Net would be beneficial
• Experience with security technologies such as firewalls, intrusion detection/prevention systems, and VPNs.
• Strong problem-solving and troubleshooting skills.
• Strong communication and interpersonal skills.

Experience

Proven experience maintaining a network in a production and mission critical environment, ideally with the mobile or telecommunications domain

Education

Willingness to be on-call to support the continued operations of our infrastructure, travel will also be required to Data Centre locations.