Infrastructure Specialist in London

Tokio Marine Kiln (TMK) are looking for an Infrastructure Specialist to join our IT Infrastructure team.

This role plays a key part in operating, maintaining and continually improving secure, resilient and automated infrastructure services across on-premises, cloud and hybrid environments.

Reporting to the Infrastructure Operations Manager, you will work closely with colleagues across IT, Security, Applications, Service Management and third-party suppliers to support business-critical services, deliver infrastructure improvements and ensure the ongoing reliability, security and performance of TMK's technology estate.

Key Responsibilities

• Design, implement and support infrastructure services across on-premises, Microsoft Azure, AWS and hybrid environments (Assist in the planning, design, development and deployment of new infrastructure services and enhancements across multiple environments.)
• Maintain and continually improve infrastructure platforms supporting monitoring, backup, disaster recovery, cyber recovery and security patching.
• Develop and manage Infrastructure as Code and configuration automation using tools such as Terraform, Ansible and Git.
• Build and enhance monitoring and observability capabilities using metrics, logs, traces and service dependency information to support proactive issue detection and resolution.
• Provide 3rd line support for infrastructure services and lead the diagnosis and resolution of major and complex incidents.
• Review infrastructure performance, resilience, capacity and cost, identifying opportunities for optimisation and continual improvement.
• Maintain secure infrastructure configurations, supporting vulnerability management, identity and access controls, encryption and compliance requirements.
• Support disaster recovery and cyber recovery testing activities, ensuring recovery procedures remain effective and documented.
• Perform preventative maintenance, lifecycle management and technical debt remediation across infrastructure platforms.
• Create and maintain high-quality technical documentation, operational procedures, runbooks and knowledge articles.
• Collaborate with internal technology teams and external suppliers to deliver infrastructure projects and service improvements.
• Participate in the on-call rota and provide support for planned changes and critical incidents outside normal business hours when required.
• What we’re looking for
• Strong experience supporting enterprise infrastructure environments across on-premises and cloud platforms.
• Excellent knowledge of Microsoft technologies including Windows Server, Active Directory, Entra ID and Microsoft 365.
• Strong knowledge of Microsoft Azure and AWS, including compute, storage, networking, identity, monitoring, governance, backup and resilience.
• Knowledge of Infrastructure as Code, automation and source control technologies such as Terraform, Ansible and Git.
• Strong troubleshooting, analytical and problem-solving skills, with experience resolving complex technical issues.
• Understanding of infrastructure security principles, including Zero Trust, least privilege and vulnerability management.
• Experience of virtualisation, storage and networking technologies; VMware experience would be advantageous.
• Knowledge of observability and monitoring solutions such as Azure Monitor, Cloud Watch or Logic Monitor would be beneficial.
• Experience with enterprise backup and recovery technologies and disaster recovery processes.
• Excellent communication skills with the ability to engage effectively with both technical and non-technical stakeholders.

Why apply?

You'll join a collaborative and forward-thinking technology team where innovation, automation and continuous improvement are actively encouraged.

You'll have the opportunity to work with modern cloud platforms, infrastructure automation, observability tooling and emerging AI-assisted operational technologies, while supporting business-critical services across a global organisation.

This role offers excellent exposure to enterprise infrastructure, cloud transformation and service reliability initiatives, making it an outstanding opportunity to further develop your technical expertise while contributing to the ongoing success of TMK.

The successful candidate will be welcomed into the TMK family to help us further our purpose of enabling our clients to fulfil their ambitions whilst benefiting society and our people.

We are committed to ensuring a safe, open, inclusive and empowering environment in which all of our people can thrive.

All employees have the opportunity to join one or more inclusion network groups or take part in CSR and charitable activities.

TMK is signed up to the Disability Confident Employer Scheme and we also accommodate flexible working, subject to the TMK flexible working policy.

As an underwriting firm with over 140 years’ experience of protecting clients from changing risks we put our confidence in the ability and talent of our people.

We aim to be a Good Company and this means being a great and inclusive company to do business with and being a great place to work.

Our culture is founded on our core values of empowerment, inclusion, excellence, integrity, teamwork and innovation.

We seek to recruit the best talent by endeavouring to reach diverse talent pools, offering dynamic working arrangements and investing in development.

We pride ourselves on our high-calibre workforce and we recognise that the success of our business is dependent on our ability to attract, develop, motivate and retain a diverse and talented group of people.