3rd Line Support Analyst

FluidOne; Camberley; On-site; GBP 55,000 - 75,000; Full time

Benefits offered by this job

Health and dental care (subsidised)

Employee Assistance Programme (EAP)

Life assurance (3 x salary)

Sodexo Discount Platform

Pension contribution - 5% company

Generous holiday entitlement

One day off for birthday

Half price internet connectivity

Department incentives

Job summary

FluidOne is seeking an experienced IT Infrastructure Engineer to manage complex incidents, drive root-cause analysis, and implement robust upgrades across Windows, Linux, virtualization, and cloud platforms.

You will work across on-premises and cloud environments, ensure security best practices, and contribute to disaster recovery planning while mentoring junior staff.

Qualifications

• Diagnose and resolve complex technical issues across multiple systems and applications.
• Deep understanding of server, network, and storage infra, including Windows/Linux and virtualisation.
• Experience with AWS/Azure and core networking protocols (TCP/IP, DNS, DHCP, VPN).
• Scripting skills for automation (PowerShell, Python, Bash).
• Knowledge of backup, DR planning, and security best practices.

Responsibilities

• Handle complex incidents and problems beyond 1st/2nd line support.
• Own high-priority incidents ensuring timely resolutions.
• Perform root cause analysis and implement long-term fixes.
• Plan and execute system upgrades, patches, and configurations.
• Develop and test disaster recovery plans.
• Provide guidance to junior team members and maintain documentation.

Skills

Diagnostics of complex issues

Server infrastructure

Networking & security

Windows & Linux admin

Virtualisation

Cloud platforms

Scripting (PowerShell/Python)

Tools

VMware

Hyper-V

AWS

Azure

SQL/NoSQL databases

Job description

Established in 2006, FluidOne is an award-winning provider of Connected Cloud Solutions with a £110mturnover and focus on customer service, consistently achieving one of the highest Net Promoter Scores (NPS) in the industry, securing 81 for Q2 2026. Underlying its services is FluidOne’s national fibre network, Platform One, which is the most connected network in the UK. FluidOne has a strong company culture enjoyed by 460 staff and was ranked in the top 50 Best Companies to work for in the UK awards 2023 and in the top 25 Technology companies to work for in the UK.

FluidOne supports the needs of 2,000+ customers, including 200 channel resellers,with IT and Cyber Security managed services underpinned by connectivity and communications solutions. A comprehensive managed service provider (MSP), FluidOne has in-house experts that specialise in providing solutions ranging from IT security and disaster recovery, to cloud hosting and Microsoft licence management. As AI becomes a core enabler of innovation, FluidOne’s vision is to lead the way in secure AI adoption, combining innovative Connected Cloud solutions with unmatched expertise and service, empowering businesses to thrive confidently in the AI era. The company consults with its customers to design solutions that complement their in-house IT structures; taking complex hybrid multi-site environments, to make them simple and secure, so end-users can access their business applications wherever they are.

Enterprise IT focuses on delivering comprehensive technology solutions tailored to the complex needs of large-scale organisations. In this realm, managed services play a pivotal role by providing enterprise customers with end-to-end IT support, including network and connectivity management, cloud and hosting solutions, cybersecurity, unified communications, and continuous IT support. These services ensure robust infrastructure management, proactive monitoring, and quick resolution of issues, thereby enhancing operational efficiency and minimising downtime. Managed services for enterprises also encompass strategic IT consulting, seamless systems integration, and compliance management, ensuring that the organisation's IT landscape is secure, scalable, and aligned with business objectives. By leveraging managed services, enterprises can optimise their IT investments, drive innovation, and maintain a competitive edge in the market.

Responsibilities

• Handle complex incidents and problems that cannot be resolved by 1st and 2nd line support, using deep technical knowledge and expertise.
• Take ownership of high-priority incidents, ensuring timely resolution and minimal impact on business operations.
• Perform root cause analysis for recurring incidents and develop long-term solutions to prevent reoccurrence.
• Address and fulfill advanced service requests requiring detailed technical knowledge, such as system upgrades or custom configurations.
• Assess, plan, and implement changes in the IT infrastructure, ensuring they are carried out with minimal disruption to services.
• Document complex issue resolutions and solutions, contributing to the knowledge base to assist lower-tier support teams and end-users.
• Provide guidance and training to 1st and 2nd line support staff to enhance their technical skills and improve overall service quality.
• Monitor system performance, identify bottlenecks, and implement optimisations to ensure optimal operation of IT services.
• Coordinate with external vendors and service providers to resolve hardware and software issues that require third-party intervention.
• Plan and execute system upgrades, patches, and firmware updates to maintain security and functionality of IT systems.
• Develop and test disaster recovery plans, ensuring systems can be restored quickly in case of a major incident.
• Implement and maintain security measures to protect IT systems and data from unauthorised access and cyber threats.
• Assess current and future IT infrastructure needs, ensuring resources are available to meet the demands of the enterprise.
• Analyse service performance data, identify areas for improvement, and implement solutions to enhance service quality and efficiency.
• Ensure IT operations comply with industry standards and regulations and support internal and external audits as required.

Requirements

• Demonstrated ability to diagnose and resolve complex technical issues across various systems and applications.
• Deep understanding of server, network, and storage infrastructure, including experience with Windows and Linux operating systems, virtualisation technologies (e.g., VMware, Hyper‑V), and cloud platforms (e.g., AWS, Azure).
• Knowledge of networking protocols and configurations (e.g., TCP/IP, DNS, DHCP, VPN), and hands‑on experience with network devices (routers, switches, firewalls).
• Proficiency in managing and troubleshooting SQL and NoSQL databases (e.g., SQL Server, MySQL, MongoDB), including performance tuning and backup strategies.
• Strong skills in scripting languages (e.g., PowerShell, Python, Bash) for automation of tasks and processes.
• Experience in implementing and maintaining security measures, such as antivirus solutions, firewalls, intrusion detection/prevention systems, and security best practices.
• Capability to support and configure enterprise software applications, including ERP, CRM, and other business‑critical systems.
• Knowledge of backup solutions and disaster recovery planning and execution, ensuring data integrity and availability.
• Familiarity with tools and techniques for monitoring system performance and optimising resources to ensure efficient operation.
• Ability to create and maintain comprehensive technical documentation, including knowledge base articles, troubleshooting guides, and procedural documentation.

Disclaimer

The above statements are intended to describe the general nature and level of work being performed by people assigned to this classification. They are not to be construed as an exhaustive list of all responsibilities, duties, and skills required of personnel so classified. All personnel may be required to perform duties outside of their normal responsibilities from time to time, as needed.

Benefits after probationary period

• Subsidised Health and subsidised dental care
• Employee Assistance programme (EAP)
• Life assurance (3 x salary)
• Sodexo Discount Platform
• FluidOne breakfast and refreshments on working days
• Pension contribution-5% company contribution
• Generous Holiday Entitlement
• One day off for Birthday
• Half price internet connectivity
• Department incentives

FluidOne is an equal opportunities provider and welcomes applications regardless of sex, marital status, ethnic origin, disability, religion, sexual orientation, or age.