Senior Infrastructure Engineer (Windows)

Utility Warehouse

Greater London

Hybrid

GBP 90,000 - 120,000

Full time

14 days+

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Benefits offered by this job

Competitive, benchmarked salary
Flexible / remote working
Share options
25 days holiday plus bank holidays
Life assurance up to 4× salary
Private pension scheme
Discounted services
A free cashback card
Discounted healthcare
Free virtual GP service
Save As You Earn scheme
Health & wellbeing benefits
Access to training and development opportunities
Regular team and company social events

Job summary

A utilities company in Greater London is seeking a Senior Infrastructure Engineer to manage and deploy infrastructure primarily in Windows environments. You will have the responsibility to mentor team members, lead technical projects, and manage incident responses while ensuring high system reliability. This full-time position offers a competitive salary, benefits, and a flexible working environment. Ideal candidates will have expertise in automation and technical troubleshooting.

Qualifications

  • Experience managing, troubleshooting, and deploying infrastructure in a Windows environment.
  • Proven expertise in technical troubleshooting and incident management.
  • Ability to design automation strategies for system management.
  • Ability to mentor teammates and work in autonomous teams.
  • Knowledge of Linux and virtualization technologies.

Responsibilities

  • Own and complete large projects with minimal guidance.
  • Design and implement solutions to complex problems.
  • Mentor and onboard new team members.
  • Act as SME for Windows systems and troubleshoot.
  • Develop automation strategies for system management.
  • Manage on-premises and cloud environments.
  • Maintain and monitor AD, Windows, Linux, and networks.
  • Develop PowerShell/DSC scripts for production use.

Skills

Autonomous teams making use of common platforms for product development
Github
Microsoft DSC
Kubernetes & Docker
Terraform & Ansible
Proxmox, VMWare ESXi/vSAN
Linux in on-premise clusters and in Cloud
Proxmox
VMware ESXi/vSAN
Linux
AWS/GCP

Tools

Kubernetes
Docker
Terraform
Ansible
Proxmox
VMware ESXi/vSAN
NetApp Filers
Linux
AWS/GCP
Microsoft DSC

Job description

Senior Infrastructure Engineer (Windows)

Utility Warehouse is a truly unique FTSE 250 company focused on social impact. We disrupt the utilities industry by bundling essential home services into one account, billing and savings system.

We work in small, fully autonomous teams that have real ownership of their products, using the best tool for the job and constantly looking for improvement.

People are at the centre of what we do – with a culture that values experimentation, openness, collaboration, continual learning, lightweight processes, autonomy and swift delivery without compromising quality.

Our technology ensures that our services work seamlessly for customers – always available yet invisible, backed by complex, reliable infrastructure.

Responsibilities
  • Own and complete large projects in your domain with minimal guidance.
  • Be involved in setting team goals and owning their delivery.
  • Understand the value of committing to company and team objectives and manage the team’s focus around these (no bikeshedding).
  • Be the primary technical owner and subject‑matter expert for all systems in Workplace infrastructure.
  • Design and implement solutions in keeping with our design ethos to solve complex problems and help the business scale and grow.
  • Propose and review designs and RFCs.
  • Proactively remove roadblocks for you and your team.
  • Ensure high quality of delivery.
  • Actively reduce complexity and technical debt in our systems and operations.
  • Mentor, coach, and be involved in onboarding new members into the team.
  • Look for opportunities for the team to expand and grow by getting involved in projects and work in other areas of the business.
Technical Responsibilities
  • Manage, troubleshoot and deploy infrastructure, specifically focused on the Windows environment but extending to network, product and cloud systems.
  • Act as a subject‑matter expert for technical troubleshooting across our managed systems.
  • Assist with incident response and post‑incident analysis for the broader operations domain.
  • Design and develop automation strategies for ongoing system management and administration, including the use of appropriate automation and configuration management tools.
  • Manage and support both on‑premise and cloud environments within a technology operations team.
  • Utilise and maintain monitoring, alerting, and service desk systems, following established processes and creating documentation where needed.
  • Troubleshoot and resolve technical operational issues across Active Directory, Windows, Linux, and networks, with a primary focus on Windows while leveraging knowledge of Linux.
  • Apply a working knowledge of infrastructure as code and automated provisioning & configuration management using tools like Microsoft DSC, Terraform, and Ansible.
  • Strengthen and maintain Active Directory security.
  • Deploy, maintain, and optimise Microsoft RDS for performance and reliability. (A must!)
  • Manage and configure SCCM and/or Intune for system administration and endpoint management.
  • Deploy, operate, and maintain legacy MS SQL Server, MS‑SQL databases, and related services, including stored procedures, SSRS, SISS, and DTSx.
  • Administer and support virtualisation and containerisation technologies such as Proxmox, VMWare, and Docker.
  • Work effectively in a remote environment or collaborate with distributed teams.
  • Develop and maintain PowerShell/DSC scripts for production use, ensuring reliability and efficiency.
  • Experience in deploying NETAPP filers in multi‑site environments, configuring and maintaining cross‑site replication.
Skills & Experience
  • Autonomous teams making use of common platforms for product development.
  • Github, with a strong leaning towards supporting (and release) of open source projects.
  • Microsoft DSC.
  • Kubernetes & Docker.
  • Terraform & Ansible.
  • Proxmox, VMWare ESXi/vSAN, Netapp Filers.
  • Linux in on‑premise clusters and in Cloud (AWS/GCP).
Benefits
  • Competitive, benchmarked salary.
  • Flexible / remote working.
  • Share options – giving you ownership in the business.
  • 25 days holiday plus bank holidays.
  • Life assurance up to 4× your salary.
  • Private pension scheme.
  • Discounted UW services (30% mobile & broadband, 10% energy & insurance).
  • A free UW cashback card – earning you cashback on all your spending!
  • Discounted healthcare & medical cash plans.
  • A free virtual GP service.
  • Save As You Earn scheme.
  • A range of health & wellbeing benefits including a confidential Employee Assistance Programme, virtual fitness classes and wellness tools.
  • Access to Spark – a holistic approach to learning and development created by UW to empower your personal and professional growth. You’ll have huge opportunities for exposure & development through involvement in a range of projects as we scale up as well as access to professional training relevant to your role.
  • Regular team and company social events.

Beth Rodgers will be your point of contact throughout the recruitment process.

Additional Information

We provide equal opportunities, a diverse and inclusive work environment, and fairness for everyone. You are welcome to apply no matter your age, disability, gender, marriage or civil partnership status, pregnancy and maternity status, race, religion or belief, or sexual orientation. Please don’t be afraid to ask about what we can do to support your needs. All requests will be carefully and fairly considered.

All successful applicants will be subject to a background check. Where checks are unsatisfactory or incomplete and/or a failure to reveal information relating to convictions that you are required to identify as part of the background checks, could lead to the withdrawal of an offer of employment.

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Utilities

Location: London, England, United Kingdom

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