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Mobile Core Engineer – OSS - Com4 About Us Com4 is a leading global service provider in the Internet of Things (IoT), also known as “Machine to Machine” (M2M). We offer mobile data subscriptions tailored to our customers' applications in their connected devices and equipment. This connectivity enables innovative solutions across many sectors, such as energy, security, transport, and welfare technologies. Com4 is a significant player in the Norwegian telecom market, with a 50% market share in the IoT segment. Through roaming agreements, we offer IoT communication on 2G/3G/4G/5G across 700 networks globally. As a Mobile Virtual Network Operator (MVNO), Com4 has its own mobile core network and a portfolio of Business Support Systems (BSS) and Operational Support Systems (OSS). A central element of our core network is our IP/MPLS network, which connects network elements across our various data centers and forms the interface toward our customers and partners/providers of peering, IP Transit, and IPX/GRX. We have solutions for several VPN variants adapted for business customers with dedicated APNs and diverse communication needs. We make extensive use of MPLS in both IP and mobile network elements for efficient service production. FW and NAT solutions are important security elements in our design. The services we produce meet high requirements for uptime, and solution flexibility is a central part of the offering we provide to customers. Moving forward, the network is being further developed to support 5G SA mobile services, scale, and increase the degree of automation. About the Role We are looking for a Mobile Core Engineer responsible for monitoring, observability, and integration of mobile core systems into OSS ecosystems. We will consider both senior candidates with extensive experience and juniors with shorter experience, and can adapt tasks and responsibilities in line with the candidate's profile. We are looking for someone who is solution-oriented and fearless when facing complicated tasks. We value good cooperation and communication skills, while it is also crucial to work independently and proactively within your own field of expertise. To further strengthen our technical team, we are looking for an Mobile Core Engineer who has competence or experience in several of the following areas, as well as an interest in learning more: Knowledge of NMS tools and network performance monitoring.   Experience with monitoring and logging solutions (Prometheus, Grafana, ELK stack).   Knowledge of KPIs related to mobile networks.   Good understanding of cloud environments (Telco Cloud) and virtualization   Collect, analyze, and present KPIs to monitor network performance.   Solid understanding of mobile core network architectures (EPC, 5GC, protocols like Diameter, GTP, SCTP).   Manage and operate EMS tools such as  Nokia  MantaRay     Build dashboards using  Grafana     Monitor KPIs across:  EPC nodes & 5G Core NFs    Perform signaling analysis and troubleshooting    Integrate OSS systems with core network elements    Strong OSS/EMS experience    KPI modeling and alarm correlation   Develop automation for monitoring and reporting   Strong teamworking and collaboration skills   Customer-focused mindset with  strong communication  abilitie s   Participate in  an on -call rotation, troubleshoot issues, and drive incident resolution to minimize downtime. Conduct post-mortems and implement corrective actions to enhance reliability.   We Offer Com4 is a highly attractive workplace. We have a flexible and growth-oriented entrepreneurial culture, while offering security and competitive terms. We have an excellent working environmen