Public Cloud Network Lead

London, United Kingdom; Glasgow, United Kingdom

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Key information

Date live: 16/06/2026

Business Area: GTIS

Area of Expertise: Technology

Contract: Permanent

Reference Code: JR-0000110045

It’s happening at Barclays.

Be a part of a place where challenges are measured in billions, qubits and nanoseconds. Build your career in an environment where we’re advancing machine learning, leveraging blockchains, and harnessing FinTech. Working in Barclays technology, you’ll reimagine possibilities: learning and innovating to solve the challenges ahead, delivering for millions of customers.
We are shaping the future of financial technology.
Why not join us and make it happen here?

Where will you be located?

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Join us at Barclays as a Public Cloud Network Lead, to architect, implement and operate enterprise-grade multi-cloud network infrastructure at scale for Barclays.This role sits within our GTIS Public Cloud team as the Subject Matter Expert (SME) for cloud networking across AWS, Azure, and GCP — responsible for designing secure, high-performance hybrid and multi-cloud architectures connecting thousands of cloud accounts across global regions to Barclays' on-premises infrastructure. This is a hands-on technical role balanced with strategic planning and stakeholder influence. As a senior individual contributor, you will work horizontally across GTIS Networks, SRE, DevOps, Product, and senior leadership to deliver strategic initiatives and resolve complex technical debt — mentoring engineers and serving as the escalation point for critical network incidents.

Key Skills

Multi-Cloud Network Architecture & Hybrid Connectivity – Lead enterprise-scale network design across AWS, Azure, and GCP, delivering hybrid connectivity, encrypted interconnects (MACsec/IPsec), circuit provider management, and legacy infrastructure remediation through Infrastructure as Code.
Network Security & Compliance – Implement Zero Trust segmentation, deploy cloud-native firewall controls, and ensure compliance with PCI-DSS, DORA, and internal governance frameworks.
Strategic Planning, Consultancy & Stakeholder Engagement – Define cloud network strategy, evaluate emerging technologies, produce ADRs and HLD/LLD designs, lead Landing Zone design, and influence senior stakeholders on risk, strategy, and cost optimisation.
Operational Excellence & Incident Response – Own incident escalation, SLA/SLO monitoring, flow analysis, and SRE enablement to drive network operational excellence.
Automation, IaC & DevOps Practices – Build reusable Terraform, CloudFormation, and Bicep IaC with CI/CD pipelines and Python/Bash automation for standardised network provisioning.

Desirable Skills

Cloud & Network Certifications – Professional/expert-level cloud certifications (AWS Certified Advanced Networking – Specialty, Azure Network Engineer Associate, Google Cloud Professional Cloud Network Engineer) and traditional networking certifications (CCNP Enterprise/Security, JNCIA/JNCIS).
Kubernetes Networking & Service Mesh – Experience with Kubernetes networking (EKS, AKS, GKE), service mesh technologies (Istio/Linkerd), and CNI plugins (Calico, Cilium).
FinOps & Cloud Cost Optimisation – Knowledge of FinOps principles, cloud cost attribution, and optimisation strategies.
Zero Trust & Secure Connectivity Tooling – Familiarity with Zero Trust architecture tooling including Cisco Secure Workload (Tetration) and SD-WAN/SASE solutions (Zscaler).
Advanced Networking & NetDevOps – Experience with HPC networking, RDMA, and low-latency workload requirements, combined with understanding of API-driven network management and NetDevOps practices.

This role is based in London

You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking and digital and technology, as well as job-specific technical skills

Purpose of the role

To build and maintain infrastructure platforms and products that support applications and data systems, using hardware, software, networks, and cloud computing platforms as required with the aim of ensuring that the infrastructure is reliable, scalable, and secure. Ensure the reliability, availability, and scalability of the systems, platforms, and technology through the application of software engineering techniques, automation, and best practices in incident response.

Accountabilities

Build Engineering: Development, delivery, and maintenance of high-quality infrastructure solutions to fulfil business requirements ensuring measurable reliability, performance, availability, and ease of use. Including the identification of the appropriate technologies and solutions to meet business, optimisation, and resourcing requirements.
Incident Management: Monitoring of IT infrastructure and system performance to measure, identify, address, and resolve any potential issues, vulnerabilities, or outages. Use of data to drive down mean time to resolution.
Automation: Development and implementation of automated tasks and processes to improve efficiency and reduce manual intervention, utilising software scripting/coding disciplines.
Security: Implementation of a secure configuration and measures to protect infrastructure against cyber-attacks, vulnerabilities, and other security threats, including protection of hardware, software, and data from unauthorised access.
Teamwork: Cross-functional collaboration with product managers, architects, and other engineers to define IT Infrastructure requirements, devise solutions, and ensure seamless integration and alignment with business objectives via a data driven approach.
Learning: Stay informed of industry technology trends and innovations, and actively contribute to the organization's technology communities to foster a culture of technical excellence and growth.

Vice President Expectations

To contribute or set strategy, drive requirements and make recommendations for change. Plan resources, budgets, and policies; manage and maintain policies/ processes; deliver continuous improvements and escalate breaches of policies/procedures..
If managing a team, they define jobs and responsibilities, planning for the department’s future needs and operations, counselling employees on performance and contributing to employee pay decisions/changes. They may also lead a number of specialists to influence the operations of a department, in alignment with strategic as well as tactical priorities, while balancing short and long term goals and ensuring that budgets and schedules meet corporate requirements..
If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others..
OR for an individual contributor, they will be a subject matter expert within own discipline and will guide technical direction. They will lead collaborative, multi-year assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will train, guide and coach less experienced specialists and provide information affecting long term profits, organisational risks and strategic decisions..
Advise key stakeholders, including functional leadership teams and senior management on functional and cross functional areas of impact and alignment.
Manage and mitigate risks through assessment, in support of the control and governance agenda.
Demonstrate leadership and accountability for managing risk and strengthening controls in relation to the work your team does.
Demonstrate comprehensive understanding of the organisation functions to contribute to achieving the goals of the business.
Collaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategies.
Create solutions based on sophisticated analytical thought comparing and selecting complex alternatives. In-depth analysis with interpretative thinking will be required to define problems and develop innovative solutions.
Adopt and include the outcomes of extensive research in problem solving processes.
Seek out, build and maintain trusting relationships and partnerships with internal and external stakeholders in order to accomplish key business objectives, using influencing and negotiating skills to achieve outcomes.

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.

Barclays welcomes applications from all candidates and is committed to ensuring reasonable adjustments (accommodations) are put in place to allow for a fair and inclusive recruitment process. For more information and how to request one, please review Adjustments to the recruitment process.

We’re a global, vital and highly respected financial organisation with an inspiring Purpose. Operating in 39 countries and employing around 100,000 people across the world, we help communities, individuals and businesses thrive. And we’ve created financial solutions and technology that the world now takes for granted. A career with us can offer incredible variety, depth and breadth of experience, and the chance to learn from some of the best minds in technology and finance.

To find out more about Barclays' strategy please click here.

We are an equal opportunity employer and opposed to discrimination on any grounds. It is the policy of Barclays to ensure equal employment opportunity without discrimination or harassment on the basis of race, colour, creed, religion, national origin, alienage or citizenship status, age, sex, sexual orientation, gender identity or expression, marital or domestic/civil partnership status, disability, veteran status, genetic information, or any other basis protected by law.

Barclays is required by law to confirm that you have the Legal Right to Work in any role that you apply for. If you currently hold a work visa sponsored by Barclays, or you would require sponsorship from Barclays, you must declare this as part of your application. Sponsored visas are role and entity specific and any changes must be reviewed. It is important that you ensure you are working on the correct visa at all times. Failure to accurately disclose your visa status or Legal Right to Work may result in your application or any employment offer being withdrawn at any time.

This role may be subject to enhanced governance arrangements. If successful, you may be required to comply with additional regulatory and compliance obligations, such as disclosure of personal trading activities and external interest/affiliations.

Further information on these requirements will be provided at a later stage of the process.

Who succeeds in
Tech at Barclays?

For a career with us, you need to be prepared to take big steps forward, curious to face the challenges ahead, and driven to focus on the outcomes. We need people with the Barclays mindset to make it happen here.

What you'll get in return

Competitive holiday allowance

Life assurance

Private medical care

Pension contribution

Our technology

Supporting our 48 million customers and clients worldwide takes a lot of forward thinking. It means harnessing technology to support the economy. It means making a difference to people’s lives. And it requires the maintenance and development of a global, technological infrastructure. At Barclays, technology helps us keep transactions moving, manages data, and protects our customers. Join a world where your work creates unique moments of impact. Make it happen here.

This is Barclays London

Our global HQ is in Canary Wharf, at the heart of London’s financial district. There are over 10,000 colleagues here – a hugely diverse workforce made up of the world’s best financial and tech talent. If you love the buzz of city life, this is the place to be.

Cycle or run to work? We’ve got everything you need – from cycle hire and parking areas to new showering and changing facilities.

CoSpace is our drop-in co-working space, where networks are built, problems are solved collectively and our community is strengthened.

Our Wellness Suite includes a well-equipped gym and exercise studios, and provides personal training sessions and massage therapy.

Our new trading floors enhance communication, integrate sustainability, and support health and wellbeing through innovative design and British-sourced furniture.

This is Barclays London

Supporting active commuters

Cycle or run to work? We’ve got everything you need – from cycle hire and parking areas to new showering and changing facilities.

Time to connect

CoSpace is our drop-in co-working space, where networks are built, problems are solved collectively and our community is strengthened.

Wellbeing in focus

Our Wellness Suite includes a well-equipped gym and exercise studios, and provides personal training sessions and massage therapy.

Advanced trading floors

Our new trading floors enhance communication, integrate sustainability, and support health and wellbeing through innovative design and British-sourced furniture.

Working flexibly

We’re committed to providing a supportive and inclusive culture and environment for you to work in. This environment recognises and supports your personal needs, alongside the professional needs of our business. If you'd like to explore flexible working arrangements, please discuss this with the hiring manager. Your request will be reviewed in-line with the requirements of the role/business needs of the team.

Hybrid working

We have a structured approach to hybrid working, where colleagues work at an onsite location on fixed, ‘anchor’, days, as set by the business area. Please discuss the working pattern requirements for the role you are applying for with the hiring manager. Please note that working arrangements may be subject to change on reasonable notice to ensure we meet the needs of our business.

Barclays is built on an international scale.

Our geographic reach, our wide variety of functions, businesses, roles and locations reflect the rich diversity of our worldwide customer base. All of which means we offer incredible variety, depth and breadth of experience. And the chance to learn from a globally diverse mix of colleagues, including some of the very best minds in banking, finance, technology and business. Throughout, we’ll encourage you to embrace mobility, exploring every part of our operations as you build your career.

Find more information

Make it happen at Barclays

Our teams are always evolving - creating new solutions that make a real difference for customers and clients. Watch the video to hear how our colleagues describe their careers at Barclays and imagine where yours could take you.