Senior network architect Work, Jobs in Wallington, Gtl (with Salaries)

Senior Infrastructure Engineer
CGI —Leatherhead
- Full-time
- Azure
- Scripting
- Computer networking
Quick apply
Senior Network Architect
Network Rail —London
- £55,596 - £73,296 a year
- Full-time
- Hybrid work
- Computer networking
- Leadership
- Free parking
- Annual leave
6d
Senior Architect
Expedia —London
- Full-time
- Computer Science
- Engineering
- Master's degree
Applied AI Security Architect
Anthropic —London
- £190,000 - £230,000 a year
- Hybrid work
- Azure
- English
- AWS
- Flexible schedule
Senior Principal Agentic Platforms Architect
Mastercard —London
- Full-time
- Computer Science
- Engineering
- Master's degree
13d
Head of Operations
Sessions —London
- £65,000 - £75,000 a year
- Hybrid work
- Hospitality
- Management
- English
- Employee assistance programme
Quick apply
12d
Network Architect
Wanstor —London
- Full-time
- Hybrid work
- Continuous improvement
- Computer networking
- IT
- Annual leave
Quick apply
Senior Solutions Architect
Forescout Technologies Inc. —London
- Computer Science
- DevOps
- Engineering
8d
Principal Architect
RELX —London
- Full-time
- Computer Science
- Engineering
- Analysis skills
- Employee assistance programme
- Employee discount
G7 Technical Architect
Cabinet Office —London
- £62,988 - £68,558 a year
- Part-time
- AWS
- Presentation skills
- APIs
- Annual leave
2d
Senior Sales Executive- UK
RealTrust —London
- £60,000 - £70,000 a year
- Full-time
- Hybrid work
- Sales
- Salesforce
- Mentoring
- Work from home
- Referral programme
Quick apply
Architect, Staff & Senior Systems Software Engineer
OLIX —London
- From £387,000 a year
- Full-time
- Computer Science
- Master's degree
- C++
DevOps Engineer - CIMAR
DeepHealth —London
- £60,000 - £70,000 a year
- Full-time
- Remote
- Computer Science
- DevOps
- Engineering
Quick apply
8d
Strategic Marketing Senior Manager
Boston Consulting Group —London
- Full-time
- Microsoft Powerpoint
- Microsoft Excel
- Presentation skills
Partner Alliance Lead - EMEA
LangChain —London
- £150,000 - £215,000 a year
- Full-time
- Azure
- Sales
- Master's degree
Global Head of Implementation
Lua Global —London
- £95,000 - £130,000 a year
- Full-time
- Hybrid work
- PMP
- Master's degree
- Travel
Quick apply
12d
Chief Technology Officer
Sigma Consulting Group —London
- £90,000 a year
- Full-time
- Hybrid work
- APIs
- AI
- Leadership
Quick apply
Senior SuccessFactors Solution Architect
Capgemini Sogeti —London
- Hybrid work
- Product management
- Human resources
- Agile
Principal, Product Designer - AI Incubation Lab
Expedia —London
- £242,000 - £387,000 a year
- Full-time
- Bachelor's degree
- AI
- Annual leave
- Employee assistance programme
Senior Software Engineer II - Wise for Enterprise
Wise Australia Investments —London
- £111,000 - £145,000 a year
- Java
- Mentoring
- Leadership

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Senior Infrastructure Engineer

CGI -
Leatherhead

Quick apply

Job details

Permanent | Full-time

Benefits

Company pension

Qualifications

Azure
PKI
Virtualisation
Scripting
Computer networking
Linux
PowerShell
Active Directory

Full job description

CGI is helping shape the future of secure defence technology through the delivery of innovative, mission-critical infrastructure solutions.

As an Infrastructure Engineer, you will play a key role in supporting the deployment of a new on-premises cloud platform for the MOD, helping to deliver resilient, secure, and high-performing environments that enable operational success.

Working alongside experienced technical specialists, you will have the opportunity to take ownership of complex infrastructure challenges, contribute to meaningful outcomes, and support the successful delivery of a strategically important programme.

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% 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.

The role is Hybrid with travel to our Leatherhead office in Surrey

Your future duties and responsibilities

In this role, you will join an established team delivering a secure on-premises cloud solution for the Ministry of Defence.

You will support the design, build, configuration, and testing of critical infrastructure components, ensuring they meet operational and security requirements. Your expertise will help deliver a robust environment that supports both cloud-hosted applications and the wider user infrastructure, including servers, desktops, and local area networks.

You will work closely with architects, project teams, clients, and technology partners to develop and implement infrastructure solutions aligned to business and technical objectives.

Taking ownership of infrastructure design and operational readiness, you will contribute to strategic decisions while helping to maintain high standards of security, documentation, and service delivery.

Key responsibilities:

Design & Deliver secure on-premises infrastructure solutions

Build & Configure servers, desktops, virtualisation platforms, and supporting services

Test & Validate infrastructure components against operational requirements

Harden & Secure environments to meet stringent security standards

Administer & Optimise Microsoft-based infrastructure technologies

Collaborate & Advise project teams, architects, vendors, and stakeholders

Create & Maintain technical documentation, standards, and templates

Support & Improve production, development, and test environments

Contribute & Influence infrastructure strategy and technology roadmaps

Troubleshoot & Resolve complex infrastructure issues

Required qualifications to be successful in this role

To succeed in this role, you will bring extensive infrastructure engineering experience gained within secure or highly regulated environments.

You will possess strong Microsoft platform expertise, a proactive approach to problem solving, and the ability to design, implement, and support enterprise-scale infrastructure solutions.

Experience working within defence or government environments would be highly advantageous.

Essential qualifications and experience:

You should have 10+ years’ experience in Wintel infrastructure engineering

Strong expertise in Active Directory and Group Policy administration

Proven experience administering Microsoft Hyper-V environments

Strong PowerShell scripting and automation skills

Experience implementing and supporting PKI solutions

Proven ability to design, build, and secure enterprise infrastructure

Experience working within highly secure or classified environments

Strong understanding of infrastructure security hardening principles

Excellent troubleshooting, documentation, and stakeholder engagement skills

Desirable qualifications and experience:

Experience with Linux administration

Azure Stack Hub experience

Network design and implementation experience

Previous MOD or wider Defence sector experience

Understanding of hybrid cloud and on-premises cloud environments

#LI-RB8

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.

Quick apply

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