Lead Infrastructure Engineer

Lead Infrastructure Engineer required by an innovative and rapidly evolving technology business that delivers critical voice, cloud and connected care solutions across the UK. Due to continued growth, they are looking to appoint an experienced Lead Infrastructure Engineer to take ownership of complex infrastructure environments and act as a senior escalation point across cloud, SIP and systems operations.

This is a fantastic opportunity for a technically strong infrastructure professional who enjoys solving high-level technical challenges, mentoring support teams, and driving operational improvements across enterprise-scale environments.

The Role

As the Lead Infrastructure Engineer, you will play a pivotal role in maintaining and enhancing critical cloud, network and communication systems. Working closely with internal teams and third-party suppliers, you''ll lead complex troubleshooting activities, improve system resilience, and support the evolution of the wider technical operations function.

You''ll be involved in:

• Leading third-line technical escalations across cloud, server and network environments
• Managing and optimising SIP-based communications platforms
• Supporting AWS infrastructure and cloud-native services
• Performing deep root-cause analysis and performance optimisation
• Troubleshooting complex VoIP, SIP signalling and call quality issues
• Supporting Linux server environments and infrastructure operations
• Working within ITIL-driven service management frameworks
• Mentoring and developing first- and second-line support teams
• Collaborating with suppliers and vendors to resolve high-priority incidents

Skills & Experience Required

We''re keen to speak with candidates who have:

• Strong experience within a senior/third-line infrastructure or systems support role
• Excellent knowledge of SIP, VoIP and related communication technologies
• Solid Linux systems administration experience
• Proven AWS cloud infrastructure expertise
• Strong networking fundamentals including TCP/IP, DNS, DHCP, VLANs and firewalling
• Experience using diagnostic and packet analysis tools such as Wireshark
• Scripting or automation exposure using Bash and/or AWS Lambda
• Experience managing high-severity incidents and technical escalations
• Strong communication skills with the ability to work across technical and non-technical teams

Desirable Experience

• Technology Enabled Care Services (TECS) or SmartTEC environments
• Node.js troubleshooting or application-level debugging
• Exposure to Azure or hybrid cloud environments
• Experience mentoring or leading technical support teams

The Ideal Candidate

The successful candidate will be a proactive and technically versatile infrastructure specialist who combines strong operational expertise with excellent stakeholder engagement skills. You''ll enjoy taking ownership of problems, driving improvements, and acting as the "go-to" technical expert within a collaborative environment.

Candidates with backgrounds in infrastructure delivery, cloud operations, systems integration, telecommunications, managed services or enterprise support environments are particularly encouraged to apply. The ideal profile aligns closely with individuals experienced in cloud transformation, infrastructure governance, networking, automation and technical leadership.

Please get in touch for more information.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.