Overview

Senior Infrastructure Engineer (Fully Onsite) – London. An exciting opportunity to join a highly respected organisation at the forefront of building London’s next-generation business fibre network. Play a pivotal part in shaping the future of connectivity for important organisations across the UK and Europe.

What youll do

• As a Senior Infrastructure Engineer, ensure the secure operation and continuous improvement of the systems infrastructure supporting critical business operations.
• Balance hands-on technical tasks (e.g., configuring hypervisors, deploying new applications) with strategic planning around automation and monitoring.
• Develop robust internal tools to drive efficiency across environments and participate in incident response duties as part of an on-call rota.
• Produce clear documentation and collaborate with colleagues; communicate effectively to stakeholders.
• Identify areas for enhancement within the infrastructure landscape and implement solutions that uphold rigorous security standards.
• Maintain, configure, and ensure reliable operation of hypervisor platforms, virtual machines, containers, bare-metal servers, and all hosted applications.
• Develop and sustain internal monitoring solutions, automation scripts, and dashboards for consistency, repeatability, and visibility.
• Deploy new systems and applications to underpin network infrastructure and customer environments in line with internal standards and security protocols.
• Participate in an on-call rota to provide timely incident response and resolution for critical infrastructure issues.
• Produce diagrams and documentation that accurately reflect system architecture and operational processes for technical teams and stakeholders.
• Collaborate with cross-functional teams to ensure seamless integration of new technologies while maintaining reliability.
• Diagnose complex technical issues using methodical troubleshooting to minimise downtime and ensure service continuity.
• Prioritise multiple tasks effectively by balancing hands-on work with planning responsibilities.
• Contribute to process improvement initiatives by identifying opportunities for automation or enhanced monitoring.
• Stay up-to-date with emerging trends in infrastructure engineering to recommend improvements aligned with organisational goals.

What you bring

• Demonstrated experience as a systems administrator or similar role within telecommunications or enterprise IT services.
• Advanced proficiency with Linux/Unix (RedHat, Debian) and experience managing Windows Server/Desktop environments.
• Strong scripting abilities using Bash, PowerShell, or Ansible; Python experience is advantageous.
• Expertise in virtualization platforms and container orchestration technologies with related tooling.
• Hands-on knowledge of monitoring stacks (Prometheus, Grafana) and log management solutions (ELK/EFK or equivalents).
• Proven ability to diagnose intricate technical problems using structured troubleshooting to minimise disruption.
• Excellent organizational skills for prioritising concurrent tasks in fast-evolving environments.
• Strong written communication with the ability to produce clear diagrams and professional documentation for technical audiences and stakeholders.
• Collaborative mindset and willingness to share knowledge and support colleaguesormation.
• Commitment to upholding high security standards across infrastructure management.

About the job

• Contract Type: Permanent
• Focus: IT Support
• Industry: Telecommunications
• Workplace Type: On-site
• Experience Level: Mid Management
• Location: London
• Salary: £60,000 - £70,000 per annum + Bonus
• Job Reference: YRNKJ0-A6CC402B
• Date posted: 8 September 2025
• Consultant: Josh Groenewald

Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates