Senior Windows Infrastructure Engineer

Job Applicant Privacy Notice Publication Date: Aug 19, 2026 Ref. No: 550578 Location: Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements. With more than 54,000 employees serving over 4,500 clients across 54 countries, Atos helps modernize core IT systems, accelerate cloud and data transformation, strengthen cybersecurity, and deliver secure digital workplace environments to support its clients, its employees and society. Atos also provides consulting and advisory services through its Atos Amplify brand. A trusted partner in operating complex and mission-critical environments, Atos supports organizations across highly regulated and sovereign contexts. About Atos Group Atos Group is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris. About the role: As a Senior Windows Infrastructure Engineer, you will join our Infrastructure Operations team, supporting and evolving enterprise Windows platforms. You will be responsible for ensuring the availability, performance, and security of business-critical infrastructure while driving automation and continuous improvement initiatives. Working closely with engineers, developers, and customers, you will help design, implement, and support resilient infrastructure solutions across both on-premise and cloud environments. Key Responsibilities: Administer, maintain, and support Microsoft Windows Server environments, including Active Directory, Group Policy, DNS, DFS, DHCP, IIS, RDS, Certificate Services, and Windows Failover Clustering. Support and manage enterprise virtualisation platforms, including VMware vSphere and Microsoft Hyper-V/SCVMM, alongside Azure infrastructure services. Develop and maintain automation solutions using PowerShell, contributing to infrastructure standardisation and operational efficiency. Participate in infrastructure projects, migrations, technology refresh programmes, and cloud adoption initiatives. Produce and maintain technical documentation, operational procedures, and support knowledge while contributing to service improvement activities. Skills we can’t do without: Strong experience supporting enterprise Microsoft Windows Server environments (2016, 2019, and 2022). Extensive knowledge of Active Directory, Group Policy, DNS, DFS, DHCP, Windows Failover Clustering, and Microsoft Certificate Services. Strong PowerShell scripting and infrastructure automation experience. Experience administering VMware vSphere and/or Microsoft Hyper-V/SCVMM environments. Solid troubleshooting skills with experience supporting business-critical production infrastructure within ITIL-based service management environments. Skills we'd like: Experience with Microsoft Azure services, Microsoft Defender technologies, and security monitoring solutions. Knowledge of Intune, MECM/SCCM, WSUS, Azure DevOps, Git, Ansible, or Microsoft Sentinel. Additional Requirements: Candidates must be eligible to obtain and maintain SC Security Clearance. Participation in a 24x7 on-call rota and occasional out-of-hours support for planned maintenance and critical incidents is required. Location: UK-based, with remote work option. Benefits: 25 days paid leave + National Holidays Pension Scheme - contributions matched up to 10% Private Medical Cover Income Protection Life Assurance Flex Benefits Program We are a care leaver friendly employer, if you require additional support with your application, please contact our recruiter or send an email to our dedicated email. As a Disability Confident employer, we encourage applications from all applicants, especially, differently abled applicants. We aim to ensure that those who meet the minimum criteria for this position will be offered an interview. We are committed and willing to making reasonable adjustments to the application and assessment process to accommodate your needs. If you would like to discuss this further, please contact us via our dedicated mailbox: [email protected] Here at Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair work environment for all. Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. Find out more on our CSR commitment. Choose your future. Choose Atos.