Telcom Infrastructure Network Engineer

Telcom Infrastructure Network Engineer

The Role

We are looking for a motivated Telecom Infrastructure \& Network Engineer to join our Infrastructure \& Network Engineering team.

Our team designs, operates and maintains the telecommunications connectivity, networks and infrastructure supporting Intellico’s business\-critical messaging platform. We take responsibility for SMPP and SS7/SIGTRAN connectivity, data\-center and inter\-site networks, firewalls, virtualization, Linux systems and storage environments.

Your primary focus will be telecommunications connectivity and protocol\-level troubleshooting. You will also contribute to network engineering and the operation of our physical and virtual infrastructure across multiple colocation sites.

You will work closely with the team to investigate incidents across telecom, network and infrastructure layers.

Key Responsibilities

Operate and maintain SMPP connectivity with customers, carriers and mobile network operators

Operate and maintain SS7 and SIGTRAN connectivity across external telecom partners

Provide L2 technical support for telecom connectivity, signalling and protocol\-level incidents

Support onboarding, testing and activation of new SMPP and SS7/SIGTRAN interconnections and their configuration

Troubleshoot SMPP, SCTP, M3UA and related communication and session\-establishment problems

Operate and maintain data\-center, office and inter\-site networks based on Cisco and related technologies

Manage Palo Alto firewalls, firewall policies, VPNs, VLANs, NAT and network segmentation

Support BGP routing, internet edge connectivity, IP address management and external partner connections

Monitor and troubleshoot routing, latency, packet loss, DNS, firewall and general connectivity issues using Wireshark and related tools

Operate Proxmox VE clusters, Linux virtual machines, Ceph and ZFS storage environments

Support physical servers, storage systems, hardware replacement, cabling, rack space and power connections at colocation sites

Provision, patch, monitor and troubleshoot Linux systems and core infrastructure services such as DNS, DHCP, NTP and certificates

Support backup, restore, high availability, disaster recovery, infrastructure documentation and the compensated on\-call rotation

Requirements

Good understanding of TCP/IP networking and network communication

Practical experience with Linux systems and structured technical troubleshooting

Experience with Wireshark or comparable packet\-analysis tools

Knowledge of SMPP and telecommunications messaging is a strong advantage

Knowledge of SS7, SIGTRAN, SCTP, M3UA or related protocols is an advantage

Experience with telecommunications, carrier connectivity or network operations is an advantage

Good understanding of switching, routing, VLANs, NAT, DNS and network segmentation

Experience with firewalls, VPNs and access\-control concepts

Knowledge of Cisco, Palo Alto or comparable enterprise network technologies

Knowledge of BGP and internet edge routing is an advantage

Experience with virtualization platforms such as Proxmox, VMware or comparable technologies

Understanding of Ceph, ZFS or other storage technologies is an advantage

Experience with server hardware, Linux administration, monitoring, backup and high\-availability concepts

Strong soft skills, including problem\-solving, teamwork, ownership and communication

Education in IT, systems engineering, computer science or a related field, eg:

Informatiker/in EFZ, Fachrichtung Plattformentwicklung

ICT\-System\- und Netzwerktechniker/in mit eidg. Fachausweis

A comparable technical or university qualification

Fluent in English, German is an advantage, resident in Switzerland

Practicalities

Location: Freienbach, Switzerland

Employment: Permanent, full\-time position, 80%\-100%

Working model: Primarily office\-based, with up to two home\-office days per week where operational responsibilities allow

Schedule: Normal working hours with participation in an on\-call rotation

Travel: Occasional visits to other Intellico offices and colocation facilities

What We Offer

Technically challenging work across telecommunications, networking and infrastructure

Practical exposure to SMPP, SS7, SIGTRAN, IP networking, firewalls and Linux

The possibility to develop toward telecom engineering, network engineering or service operations

Meaningful responsibility in a small team without unnecessary organizational layers

High\-quality technical equipment and a modern, comfortable office in Freienbach jpid6a1e429jm jit0832jm jiy26jm