Senior Platform Engineer (IT)

At CGI, you?ll play a pivotal role in strengthening and evolving cloud platform capabilities that power critical digital services. Working across modern Node.js and .NET estates in Azure, you will enable secure, reliable and scalable delivery, driving measurable outcomes for clients and end users. We foster a culture where you take ownership of platform performance, bring fresh ideas to automation and optimisation, and collaborate with experts to continuously improve how services are built and run. Join us to shape resilient platforms, accelerate delivery through smarter tooling, and make a tangible impact in a supportive, forward-thinking environment. 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. Our teams operate within a flexible hybrid working model, however on-site requirements vary by project, so the ability to travel as required to meet client needs is essential. Candidate profile: In this role, you will own the stability, performance and continuous improvement of Azure-hosted platform services across Node.js and .NET environments. You will enhance CI/CD pipelines, strengthen deployment automation, and ensure environments are secure, scalable and highly available. Working closely with engineers and architects, you will help shape platform standards, improve observability, and enable teams to deliver efficiently within a self-service model. You will contribute ideas that streamline delivery, reduce operational overhead, and improve resilience, while being supported by a collaborative network that values knowledge sharing and continuous learning.

• Lead platform performance across Azure-hosted services
• Develop CI/CD pipelines and improve deployment automation
• Manage containerised environments and platform tooling
• Monitor services, resolve incidents and maintain reliability
• Collaborate with development teams across Node.js and .NET ecosystems
• Strengthen observability through monitoring and logging improvements

Required qualifications to be successful in this role You should bring strong experience in Azure platform engineering, with a focus on automation, reliability and scalable service delivery. A solid understanding of CI/CD, containerisation and monitoring is key, alongside experience supporting API-driven or microservice architectures in Agile, DevSecOps environments.

• You should have strong experience with Azure platform services and hosting
• Proven ability to build and optimise CI/CD pipelines (Azure DevOps, Git)
• Experience with containerisation tools such as Docker
• Strong knowledge of infrastructure as code (Terraform or ARM)
• Experience supporting Node.js and/or .NET services in production
• Proven ability to monitor, troubleshoot and improve service reliability
• Familiarity with monitoring tools such as Dynatrace, Prometheus or Grafana
• Understanding of DevSecOps and Agile delivery practices

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