Network Engineers

CGI Group Inc.; City of Westminster; On-site; GBP 62,000; Full time

Job summary

A leading technology services company is looking for experienced cloud engineers to manage and optimise complex network infrastructure at a secure client site. Candidates should have substantial hands-on experience with LAN, WAN, VPN, and enterprise-scale networks, ensuring high availability and troubleshooting complex issues. This full-time role is highly collaborative and requires a high level of security clearance due to the sensitive nature of the work. Competitive salary and excellent benefits are included.

Benefits

Competitive salary

Excellent pension

Private healthcare

Share scheme

Qualifications

• Proven experience supporting enterprise-scale network infrastructure.
• Strong knowledge of LAN, WAN, VPN, and data centre networking.
• Hands-on experience with switches, routers, firewalls, and load balancers.

Responsibilities

• Maintain & optimise legacy and enterprise network infrastructure.
• Diagnose & resolve complex incidents across LAN, WAN, VPN environments.
• Configure & manage switches, routers, firewalls, and load balancers.

Skills

Experience supporting complex network environments

Knowledge of LAN, WAN, VPN

Hands-on experience with switches, routers, firewalls

Ability to diagnose complex network issues

Strong documentation skills

Job description

CGI's Space, Defence and Intelligence business unit focuses primarily on the delivery of contemporary and innovative technical solutions for the government agencies' most challenging problems. We work, build, and operate bespoke, technically complex, mission‑critical systems that help our clients keep everyone safe and secure. We are currently looking for experienced cloud engineers to join our cross‑functional team who, in partnership with our clients, will help define, guide, and assure the delivery of integrated solutions. The role offers fantastic opportunities to work within an interesting and highly rewarding environment. We are heavily committed to developing our members and provide excellent learning and development opportunities to ensure that your knowledge and skills keep pace with the evolving technology landscape. We engender a culture of innovation, collaboration and ownership; highly motivated self‑starters thrive within our organisation.

Security Clearance

Due to the secure nature of this project, candidates must either already hold, or be eligible to obtain, a high level of UK Security Clearance. Eligibility requires sole British nationality, residence in the UK for the past 10 years, and not having spent more than 28 consecutive days outside the UK within the last five years. Individuals without current clearance are encouraged to apply as they will also be considered for other suitable opportunities within CGI.

This role is primarily based on a secure client site and requires attendance on site five days per week due to the sensitive nature of the work and the systems. While the position is predominantly site‑based, there may be occasional flexibility where business needs and security constraints allow. Any such arrangements would be agreed in advance with the project team.

Key Responsibilities

• Maintain & optimise legacy and enterprise network infrastructure to ensure high availability.
• Diagnose & resolve complex incidents across LAN, WAN, VPN, and data centre environments.
• Configure & manage switches, routers, firewalls, and load balancers.
• Implement & control network changes, patching, and upgrades through formal change processes.
• Document & improve network configurations, dependencies, and technical procedures.
• Support & deliver network modernisation and migration activities.
• Contribute & collaborate in incident, problem, and capacity management processes.

Qualifications

You will bring strong hands‑on experience supporting complex network environments, with the confidence to take ownership of issues and contribute to continuous improvement. You are comfortable working with legacy technologies while supporting transition to modern platforms, and you thrive in collaborative, service‑focused environments.

• Proven experience supporting enterprise‑scale network infrastructure.
• Strong knowledge of LAN, WAN, VPN, and data centre networking.
• Hands‑on experience with switches, routers, firewalls, and load balancers.
• Demonstrated ability to diagnose and resolve complex network issues.
• Experience working within structured change, incident, and problem management processes.
• Strong documentation skills and attention to detail.

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 one 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.

£61,779 per year (estimated). Full time.

Competitive salary, excellent pension, private healthcare, and a share scheme (3.5% + 3.5% matching).