Senior Support / Systems Operations Engineer (Linux, AWS, Networking) required by a technology-driven organisation to help support and improve their cloud, network, and voice infrastructure.

This role is ideal for someone who enjoys getting hands-on with complex technical challenges, working across Linux environments, AWS infrastructure, and networking, and taking ownership of advanced support issues. You’ll be a key escalation point within the support team and play an important role in maintaining the reliability and performance of critical systems.

We’re looking for someone who is self-sufficient, proactive, and comfortable rolling their sleeves up to investigate and resolve complex problems.

Key Responsibilities

• Act as the Third Line escalation point for complex infrastructure, network, and application issues.
• Troubleshoot and resolve advanced issues across Linux server environments and AWS cloud infrastructure.
• Perform deep root cause analysis to prevent recurring incidents and improve system stability.
• Support and maintain SIP-based communication platforms and VoIP technologies.
• Diagnose and resolve networking issues affecting system performance, including TCP/IP, DNS, DHCP, VLANs, and firewall configurations.
• Work closely with internal teams and external suppliers to resolve critical incidents.
• Contribute to documentation, knowledge sharing, and technical mentoring within the wider support team.

Essential Experience

• Third Line Support or similar infrastructure-focused role.
• Strong experience supporting Linux-based environments.
• Hands-on experience managing and supporting AWS cloud infrastructure.
• Strong networking knowledge, including TCP/IP, DNS, DHCP, VLANs, and firewall configurations.
• Experience diagnosing complex technical issues and performing root cause analysis.
• Comfortable working in a hands-on, self-managed technical environment.

Nice to Have

• Experience working within an MSP environment.
• Experience supporting VoIP/SIP-based systems and associated technologies.
• Knowledge of Jira or similar ticketing systems.
• Experience supporting software applications.
• Exposure to JavaScript or Node.js environments.
• Experience with monitoring tools such as Grafana.
• Experience with Raspberry Pi environments.