Senior Infrastructure Administrator
20 hours ago
Blackburn
Overview Are you ready to shape the future of secure network and server infrastructure across a global organisation? At Expleo, we're expanding our UK Infrastructure Team and looking for a skilled Senior Infrastructure Engineer who thrives in a hands-on technical environment. If you're passionate about designing resilient networks, solving complex challenges, and playing a critical role in large-scale technology operations, this is the opportunity for you. What's in It for You? • High-impact work supporting secure, enterprise-levelservers &networks across UK and global teams, • A role where your expertise directly influences network & server performance, resilience, and security, • Opportunities to collaborate with talented engineers across Expleo's global 3-tier network structure, • Real ownership of architecture, troubleshooting and continuous improvement initiatives, • Design, deploy, and maintain functional LAN, WLAN, WAN & server infrastructure environments, • Configure and install network devices, servers, routers and supporting technologies, • Monitor network integrity, performance and security across multiple UK sites and assist colleagues across different geographies when required, • Troubleshoot complex issues escalated by the team and independently resolve them, • Implement and automate network tasks to improve efficiency, • Mentor and guide team members on technical topics, • Develop, test and oversee security solutions-including authentication and disaster recovery, • Maintain full documentation of all systems, configurations and processes, • Identify areas for optimisation relating to capacity, scalability and performance, • Maintain strong level of technical security for UK network & server infrastructures, participate in vulnerability assessments, remediations, security audits, prepare and provide evidence if required, • Bachelor's degree in Computer Science, Engineering or a related field, • Strong background in network administration, switching and routing, • Excellent troubleshooting skills with the ability to work independently, • Strong grounding in Active Directory and policy management, • Knowledge of PAN-OS, SD WAN, Cisco IOS and Extreme Network operating systems, • Strong understanding of security frameworks and access control models, • Azure server and related services build, configuration and maintenance, • Managing backups Azure / Veeam, • Client device deployment / patching (Azure Arc / SCCM / WSUS / Intune), • Technical knowledge, support, troubleshooting of MS on premises Active directory infrastructure & related services - international scale if possible - (domain controllers, DFS, GPO, replication, etc), • Knowledge of MS Cloud services and relationships with on premises infrastructure (EntraID, AD connect), • Experience using diagnostic, monitoring and network analysis tools, • Experience working withWindows and Linux ServersHyper-V, VMWare., • Experience withfirewallconfiguration and management (Palo Alto preferred), • Collaborative working environment - we stand shoulder to shoulder with our clients and our peers through good times and challenges, • We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects, • Always working as one team, our people are not afraid to think big and challenge the status quo, • As a Disability Confident Committed Employer we have committed to:, • Ensure our recruitment process is inclusive and accessible, • Communicating and promoting vacancies, • Offering an interview to disabled people who meet the minimum criteria for the job, • Anticipating and providing reasonable adjustments as required We treat everyone fairly and equitably across the organisation, including providing any additional support and adjustments needed for everyone to thrive JBRP1_UKTJ