Senior IT Systems Administrator Jobs

Lunar Energy

Location:
United Kingdom, London

Category:
IT - Administration

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

At Lunar Energy, we're on a mission to transform the way we power our homes by building an ecosystem of all-electric products. Comprising a team of visionary technology and industry experts, we're united by our shared vision of deploying and building products to electrify homes that are connected through an integrated software platform. We are looking for a proactive Senior IT Systems Administrator to act as the operational heart of the global IT team. Reporting to the Head of IT and collaborating closely with other members in the global team, you will play a pivotal role in supporting the IT systems and operations at Lunar Energy.

Job Responsibility:

Administer the company’s SaaS platforms, as well as support remote users with day-to-day issues.
Implement a new automation or integration system between our services to streamline data flows, and document it for future reference.
Evaluate and respond to end-user requests for new features or functionality.
Identify issues with and optimise IT processes or platform integrations.
Research and recommend new products or services.
Ensure smooth delivery and operation of IT services by monitoring system performance.
Provide 1st/2nd/3rd line support to colleagues concerning issues with their devices, the office network infrastructure or SaaS platform integrations.
Run training sessions for end-users on how to get the most from a given platform.
Problem determination and incident management of network and connectivity issues
Operational performance monitoring and analysis of internal networks
Office WAN connectivity/ISP management
Thorough documentation of new and existing processes and systems.
IT hardware and software procurement
Day-to-day end-user support
Backup support for user onboarding/offboarding and basic training

Requirements:

A minimum of 5 years' work experience within IT Systems administration in any sector
Proficiency in Okta and Google Workspace administration
Experience with Okta Workflows for workflow automation
Expertise in MacOS and Windows device support & management - 2nd/3rd line level support essential
Familiarity with MDM solutions for Windows and macOS
Proficiency in network administration - layer 2 and 3 switching, VLANs, DNS, DHCP, firewalls, VPNs.
Experience in Domain name and DNS management
Excellent communication skills, with the ability to talk and present to a range of audiences, sometimes acting as a translator between parties
Excellent attention to detail and a methodical approach
The ability to motivate others and guide change
A passion for creating solutions with a positive attitude to change
The ability to work under pressure on multiple projects within your project timeframes
Excellent analytical skills and an informed, evidence-based approach

Nice to have:

Scripting (e.g. Python, Bash, Powershell)
Azure AD
Kandji
Intune/Endpoint Manager
Atlassian suite (Jira, Confluence etc)
AWS Management
HubSpot administration

What we offer:

Competitive Salary and stock options package
Private Medical Insurance scheme through BUPA (medical history disregarded)
A wellbeing and lifestyle benefits plan through Medicash
Enhanced Pension contributions: employer contributions matching 5%
A budget for work related training of £1,000 per financial year and an allowance of 4 training days
Cycle To Work scheme and Workplace Nursery benefit
£200 upon joining for remote work set-up
Access to Spill - Mental Health Support platform
Enhanced Maternity + Paternity Pay
25 days annual holiday entitlement + 8 Bank Holidays
Flexible start and finish times, fully remote working or hybrid depending on preferences

Additional Information:

Job Posted:
December 10, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

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Senior IT Systems Administrator