Job Description
We are looking for an experienced
Senior Systems Engineer to join our small, highly skilled team in Gothenburg. You will be the go-to person for everything from signalling protocol expertise to infrastructure operations, working in direct and daily contact with our telecom operator customers. You will play a central role in keeping our iNode platform running reliably and evolving to meet customer needs. This is a hybrid role based out of our Gothenburg, Sweden office, reporting to the Manager, Operations.
Responsibilities:
• Analyse customer needs and design new services in close cooperation with customers, suppliers and the technical team.
• Implement, configure and test new platforms and services in live operator environments.
• Troubleshoot complex issues across signalling, networking and infrastructure layers.
• Configure and maintain Linux-based server infrastructure including networking, routing, firewalls and VPN tunnels.
• Manage and operate network equipment: Cisco switches, routers and ASA firewalls.
• Install and operate physical infrastructure: servers, cabling, fiber, power supplies and UPS.
• Monitor systems using OP5/Nagios and manage backup/restore processes (Bacula).
• Participate in on-call duty rotation for 24/7 operational support.
• Drive continuous optimisation of platform performance and reliability.
Qualification and Experience:
• Deep knowledge of telecom signalling protocols: SIP, SS7, INAP, Diameter, ENUM.
• Linux: Rocky Linux / RedHat — networking, routing, firewall configuration, security hardening and bash scripting.
• CLI configuration of VLANs and VPN tunnels.
• Hands-on experience with Cisco switches, routers and ASA firewalls.
• MySQL / MariaDB: SQL query design and optimisation.
• Physical infrastructure: installation and operation of servers, network equipment and cabling.
• Strong troubleshooting skills in large, complex, mission-critical systems.
• Comfortable working directly with customers under pressure.
Good to Have:
• Apache / Tomcat, SSL configuration.
• OpenVPN, SMTP, SNMP/MIB.
• OP5 Monitor (Nagios), Bacula backup/restore.
• Xen virtualisation.
• Perl scripting.
What we offer
- Opportunity for growth and advancement
- Great team atmosphere
- Opportunity to leave your mark through the delivery of innovative ideas to the team
- Work for a stable and established company
About Us:
Enghouse Networks Sweden develops and operates IN and SIP/ENUM routing applications for telecom operators. We are forward-thinking specialists providing cost-effective, scalable and future-proof solutions which include rapid development, adaptation, implementation and 24/7 supervision and Managed Services. At the core of all our telecom solutions is our in-house developed iNode system.
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