SENIOR INFRASTRUCTURE ENGINEER

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Position Description.
The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator.
We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure.
We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across the breadth of space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability.
We work collaboratively with global technology companies, cutting edge SMEs and academia to deliver the optimal solution for each client.
CGI was recognised in the Sunday Times Best Places to Work List and has been named one of the ‘World’s Best Employers’ by Forbes magazine.
We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (% matching) which makes you a CGI Partner not just an employee.
We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant.
Join us and you’ll be part of an open, friendly community of experts.
We’ll train and support you in taking your career wherever you want it to go.
Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance.
This role that will be based at a site in Leatherhead.
Your future duties and responsibilities.
Are you an experienced Infrastructure Engineer with a passion for modernisation and a track record of supporting operational systems in Agile environments? We’re looking for a Lead Infrastructure Engineer to join our team and play a critical role in transforming and supporting an established Agile delivery project for a key client.
About the Role.
As a Lead Infrastructure Engineer, you will be integral to an Agile delivery team supporting a high-profile operational system.
This is an exciting opportunity to influence key technology decisions as the system undergoes modernisation, including hardware obsolescence upgrades and the adoption of modern private cloud technologies.
You will apply your expertise in specifying, configuring, and maintaining development and operational systems while leading and mentoring a team of infrastructure specialists.
Key Responsibilities.
• Lead the installation and commissioning of new hardware, ensuring minimal downtime and continuity of data and services.
• Participate in Agile-driven infrastructure activities, ensuring alignment with development dependencies.
• Conduct regular infrastructure health checks, proactively addressing potential issues.
• Maintain system security, including antivirus, patches, WSUS updates, and firmware logging.
• Respond promptly to MODCert Notices and Advisories affecting the system.
• Ensure regular backups, off-site transfers, and maintenance of security and network devices.
• Collaborate with the client to provide solutions and deliverables that meet their operational needs.
Required qualifications to be successful in this role.
Technology Stack.
You’ll work with a wide range of tools and technologies, including but not limited to.
• Operating Systems.
Windows Server, Linux (Rocky, RHEL), Solaris 11.
• Cloud/Virtualisation.
VMware vSphere, Terraform, Ansible, Azure, AWS.
• Networking & Security.
Cisco, Fortinet, encrypted networks, VPN devices.
• Tools & Software.
Oracle DBMS, Veeam Backup & Replication, Chocolatey, GitLab.
• Hardware.
Dell/HP Servers, Dell SAN, Dell workstations.
Essential Skills & Experience.
• Proven ability to organise workloads and independently perform regular duties.
• Experience administering software infrastructure, including Active Directory, user accounts, and security updates.
• Strong knowledge of configuring and maintaining computer networks (LAN/WAN).
• Experience with private or public cloud infrastructure such as VMware, Hyper-V • A track record of supporting operational teams and maintaining infrastructure performance and availability.
• Excellent communication skills to explain technical concepts, alternatives, and impacts to clients and stakeholders.
Desirable Skills.
• Team leadership experience, including task prioritisation, delegation, and monitoring.
• Expertise in planning and executing environment transformations (specification, procurement, and deployment).
• Hands-on experience with hardware maintenance, including servers, storage devices, and user workstations.
• Experience defining and deploying Infrastructure as Code in virtualised environments.
• Network design skills, including specification and procurement.
• Familiarity with secure environments, encrypted networks, and managing security classification barriers.
#LI-SB2 Skills.
Amazon CloudFront What you can expect from us.
Together, as owners, let’s turn meaningful insights into action.
Life at CGI is rooted in ownership, teamwork, respect and belonging.
Here, you’ll reach your full potential because… You are invited to be an owner from day 1 as we work together to bring our Dream to life.
That’s why we call ourselves CGI Partners rather than employees.
We benefit from our collective success and actively shape our company’s strategy and direction.
Your work creates value.
You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.
You’ll shape your career by joining a company built to grow and last.
You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.
Come join our team—one of the largest IT and business consulting services firms in the world.