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Salary
$48k – $67k per year
Location
In office (London)
Seniority
Junior · 2+ years exp

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Aug 20, 2026. Microsoft scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Microsoft is an American multinational technology corporation founded in 1975 by Bill Gates and Paul Allen and headquartered in Redmond, Washington. It built the personal computing era around the Windows operating system and the Office productivity suite, and now generates the largest share of its revenue from Azure cloud infrastructure and commercial subscriptions. The company also owns GitHub, LinkedIn and the Xbox gaming business, and has invested heavily in artificial intelligence through its partnership with OpenAI and the Copilot assistants embedded across its products.
Overview

As a Critical Environment Technician (CET) in Microsoft’s Cloud Operations & Innovation (CO+I) team, you will maintain the critical infrastructure that keeps our Datacenters up and running. This could be anything from coordinating with supplier/vendors, recognizing safe versus unsafe work environment, having a hands-on understanding of how critical environment equipment works, performing various types of maintenance, responding to onsite incidents while coordinating with other critical facilities professionals, and using telemetry and other platforms to monitor equipment performance and operations.

Microsoft’s Cloud Operations & Innovation (CO+I) is the engine that powers our cloud services. As a CO+I Critical Environment Technician, you will perform a key role in delivering the core infrastructure and foundational technologies for Microsoft's online services including Bing, Office 365, Xbox, OneDrive, and the Microsoft Azure platform. As a group, CO+I is focused on the personal and professional development of all employees and offers training and opportunities including Career Rotation Programs, Diversity & Inclusion training and events, and professional certifications.

Our infrastructure is comprised of a large global portfolio of more than 200 datacenters in 32 countries and millions of servers. Our foundation is built upon and managed by a team of subject matter experts working to support services for more than 1 billion customers and 20 million businesses in over 90 countries worldwide.

With environmental sustainability and optimization at the forefront of our datacenter design and operations, we continue to grow and evolve as we meet the ever-changing business demands that hold Microsoft as a world-class cloud provider.

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

Please note that this role will be based in Acton.

Responsibilities

  • Serve as an operations specialist in one major area of CE operations (e.g., electrical, mechanical, controls, generators) and works on advanced tasks independently.
  • Inspect and supervise critical environment-related facility equipment (e.g., controls, heating, ventilation, and air conditioning [HVAC], mechanical systems), building, and grounds regularly for unsafe or abnormal conditions and escalate per applicable policies and standards.
  • Utilize internal computerized maintenance management system (CMMS) to track all equipment assets and to complete work order requests for maintenance work.
  • Safely and quickly respond to and lead onsite incident response teams for all abnormal conditions that impact operations, and coordinates with other critical facilities professionals to perform corrective repairs, without supervision.
  • Enhance, develop new or follow preexisting emergency operating procedures (EOPs), methods of procedure (MOPs), and standard operating procedures (SOPs) in relation to CE operations and incidents.
  • Under minimal oversight, perform various types of maintenance (e.g., planned, predictive, corrective) and repairs following methods of procedure (MOPs), and standard operating procedures (SOPs) for one or more types of equipment (e.g., electrical, mechanical, cooling systems), correct procedures.
  • Have a hands-on understanding of how equipment works and how to troubleshoot equipment, systems, subsystems, and components independently within their trained discipline.
  • Provides consultation to lower-level colleagues in troubleshooting systems and problems.
  • Understands, follows, and ensures safety and security requirements (e.g., job hazard assessments [JHAs], environmental health and safety (EH&S), toolbox talks), and business processes and procedures to properly perform work in a safe, quality, and reliable within Microsoft requirements.
  • Embody our culture and values

Qualifications

Required Qualifications:

  • High School Diploma, GED, or equivalent AND mission critical services work/applied learning experience (e.g., high availability assembly/manufacturing/critical infrastructure environments such as data centers, oil and gas refineries, hospitals, pharmaceutical, manufacturing, or related fields)
    • OR equivalent experience.
  • Ability to work shifts, including shift assignments during non-standard business hours that may include evening, nighttime, weekends, and/or holidays

While not required, we also look for the following Preferred Qualifications :

  • High School Diploma, GED, or equivalent AND extensive mission critical services experience (e.g., high-availability assembly/manufacturing/critical infrastructure environments such as data centers, oil and gas refineries, hospitals, pharmaceutical, manufacturing, or related fields)
    • OR Associate's Degree or technical trade certification (e.g., military, trade school), or higher-equivalent education AND extensive mission-critical services experience (e.g., high-availability assembly/manufacturing/critical infrastructure environments such as data centers, oil and gas refineries, hospitals, pharmaceutical, manufacturing, or related fields)
    • OR equivalent experience.

Background Check Requirements:

Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings:

  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

Critical Environment Ops ATR-C - The typical base pay range for this role across United Kingdom is £ 36,300.00 - £ 50,100.00 per year. Certain roles may be eligible for benefits and other compensation.

Find additional benefits and pay information here:

https://careers.microsoft.com/v2/global/en/corporate-pay/united-kingdom-corporate-pay.html

Critical Environment Ops ATR-B - The typical base pay range for this role across United Kingdom is £ 34,400.00 - £ 43,300.00 per year. Certain roles may be eligible for benefits and other compensation.

Find additional benefits and pay information here:

https://careers.microsoft.com/v2/global/en/corporate-pay/united-kingdom-corporate-pay.html

This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.

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