Senior Systems Engineer

Enghouse Networks; Göteborgs kommun; Hybrid; SEK 654,950 - 873,267; Full time

Benefits offered by this job

Opportunity for growth and advancement

Great team atmosphere

Opportunity to deliver innovative ideas

Stable and established company

Job summary

Enghouse Networks is seeking an experienced Senior Systems Engineer to join our skilled team in Gothenburg. In this hybrid role, you will work closely with telecom operator customers, ensuring our iNode platform runs reliably and evolves to meet their needs.

Your responsibilities include analysing customer requirements, implementing services, troubleshooting complex issues, and maintaining Linux-based infrastructure. We offer opportunities for growth and a collaborative team environment.

Qualifications

• Deep knowledge of telecom signalling protocols.
• Hands-on with Linux networking and security.
• Strong troubleshooting skills in mission-critical systems.

Responsibilities

• Analyse customer needs and design new services.
• Implement and configure new platforms in live environments.
• Troubleshoot complex issues across various layers.

Skills

Telecom signalling protocols: SIP, SS7, INAP, Diameter, ENUM

Linux: Rocky Linux / RedHat

Cisco switches, routers and ASA firewalls

SQL query design and optimisation

Troubleshooting complex systems

Tools

OP5 Monitor (Nagios)

Bacula backup/restore

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